diff options
| author | Andreas Jaeger <aj@suse.de> | 2000-08-02 15:15:00 +0000 |
|---|---|---|
| committer | Andreas Jaeger <aj@suse.de> | 2000-08-02 15:15:00 +0000 |
| commit | 847b055c6567cbe6e154b2006a0a77ed0f48d623 (patch) | |
| tree | dda802aa998b6d196d48893932488d2906724f5d | |
| parent | 9016e55cb809f98e9fd890010ca1eaf35fd616a2 (diff) | |
Update.
2000-08-02 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/s390/Dist: New file.
* sysdeps/unix/sysv/linux/s390/sysdep.h: New file.
* sysdeps/unix/sysv/linux/s390/sysdep.S: New file.
* sysdeps/unix/sysv/linux/s390/syscall.S: New file.
* sysdeps/unix/sysv/linux/s390/sys/user.h: New file.
* sysdeps/unix/sysv/linux/s390/sys/ucontext.h: New file.
* sysdeps/unix/sysv/linux/s390/sys/ptrace.h: New file.
* sysdeps/unix/sysv/linux/s390/sys/elf.h: New file.
* sysdeps/unix/sysv/linux/s390/socket.S: New file.
* sysdeps/unix/sysv/linux/s390/sigcontextinfo.h: New file.
* sysdeps/unix/sysv/linux/s390/shmctl.c: New file.
* sysdeps/unix/sysv/linux/s390/setreuid.c: New file.
* sysdeps/unix/sysv/linux/s390/setresuid.c: New file.
* sysdeps/unix/sysv/linux/s390/setresgid.c: New file.
* sysdeps/unix/sysv/linux/s390/setregid.c: New file.
* sysdeps/unix/sysv/linux/s390/setgroups.c: New file.
* sysdeps/unix/sysv/linux/s390/setgid.c: New file.
* sysdeps/unix/sysv/linux/s390/setfsuid.c: New file.
* sysdeps/unix/sysv/linux/s390/setfsgid.c: New file.
* sysdeps/unix/sysv/linux/s390/seteuid.c: New file.
* sysdeps/unix/sysv/linux/s390/setegid.c: New file.
* sysdeps/unix/sysv/linux/s390/semctl.c: New file.
* sysdeps/unix/sysv/linux/s390/register-dump.h: New file.
* sysdeps/unix/sysv/linux/s390/putpmsg.c: New file.
* sysdeps/unix/sysv/linux/s390/putmsg.c: New file.
* sysdeps/unix/sysv/linux/s390/profil-counter.h: New file.
* sysdeps/unix/sysv/linux/s390/msgctl.c: New file.
* sysdeps/unix/sysv/linux/s390/mmap.S: New file.
* sysdeps/unix/sysv/linux/s390/getuid.c: New file.
* sysdeps/unix/sysv/linux/s390/getresuid.c: New file.
* sysdeps/unix/sysv/linux/s390/getresgid.c: New file.
* sysdeps/unix/sysv/linux/s390/getpmsg.c: New file.
* sysdeps/unix/sysv/linux/s390/getmsg.c: New file.
* sysdeps/unix/sysv/linux/s390/getgroups.c: New file.
* sysdeps/unix/sysv/linux/s390/getegid.c: New file.
* sysdeps/unix/sysv/linux/s390/geteuid.c: New file.
* sysdeps/unix/sysv/linux/s390/fchown.c: New file.
* sysdeps/unix/sysv/linux/s390/clone.S: New file.
* sysdeps/unix/sysv/linux/s390/brk.c: New file.
* sysdeps/unix/sysv/linux/s390/bits/time.h: New file.
* sysdeps/unix/sysv/linux/s390/bits/resource.h: New file.
* sysdeps/unix/sysv/linux/s390/bits/mman.h: New file.
* sysdeps/unix/sysv/linux/s390/bits/fcntl.h: New file.
* sysdeps/unix/sysv/linux/s390/Makefile: New file.
* sysdeps/s390/sysdep.h: New file.
* sysdeps/s390/sys/ucontext.h: New file.
* sysdeps/s390/sub_n.S: New file.
* sysdeps/s390/strncpy.S: New file.
* sysdeps/s390/strcpy.S: New file.
* sysdeps/s390/stackinfo.h: New file.
* sysdeps/s390/setjmp.S: New file.
* sysdeps/s390/s390-mcount.S: New file.
* sysdeps/s390/mul_1.S: New file.
* sysdeps/s390/memusage.h: New file.
* sysdeps/s390/memset.S: New file.
* sysdeps/s390/memcpy.S: New file.
* sysdeps/s390/memchr.S: New file.
* sysdeps/s390/machine-gmon.h: New file.
* sysdeps/s390/ldbl2mpn.c: New file.
* sysdeps/s390/gmp-mparam.h: New file.
* sysdeps/s390/fpu/fpu_control.h: New file.
* sysdeps/s390/fpu/fesetround.c: New file.
* sysdeps/s390/fpu/fegetround.c: New file.
* sysdeps/s390/fpu/fclrexcpt.c: New file.
* sysdeps/s390/fpu/bits/fenv.h: New file.
* sysdeps/s390/ffs.c: New file.
* sysdeps/s390/elf/start.S: New file.
* sysdeps/s390/elf/setjmp.S: New file.
* sysdeps/s390/elf/bsd-setjmp.S: New file.
* sysdeps/s390/elf/bsd-_setjmp.S: New file.
* sysdeps/s390/dl-machine.h: New file.
* sysdeps/s390/bzero.S: New file.
* sysdeps/s390/bsd-setjmp.S: New file.
* sysdeps/s390/bsd-_setjmp.S: New file.
* sysdeps/s390/bits/string.h: New file.
* sysdeps/s390/bits/setjmp.h: New file.
* sysdeps/s390/bits/huge_val.h: New file.
* sysdeps/s390/bits/endian.h: New file.
* sysdeps/s390/bits/byteswap.h: New file.
* sysdeps/s390/bcopy.S: New file.
* sysdeps/s390/backtrace.c: New file.
* sysdeps/s390/atomicity.h: New file.
* sysdeps/s390/asm-syntax.h: New file.
* sysdeps/s390/addmul_1.S: New file.
* sysdeps/s390/add_n.S: New file.
* sysdeps/s390/abort-instr.h: New file.
* sysdeps/s390/__longjmp.c: New file.
* sysdeps/s390/Makefile: New file.
* sysdeps/s390/Implies: New file.
* sysdeps/s390/Dist: New file.
Patches by Martin Schwidefsky <schwidefsky@de.ibm.com>.
94 files changed, 4630 insertions, 0 deletions
@@ -1,3 +1,97 @@ +2000-08-02 Andreas Jaeger <aj@suse.de> + + * sysdeps/unix/sysv/linux/s390/Dist: New file. + * sysdeps/unix/sysv/linux/s390/sysdep.h: New file. + * sysdeps/unix/sysv/linux/s390/sysdep.S: New file. + * sysdeps/unix/sysv/linux/s390/syscall.S: New file. + * sysdeps/unix/sysv/linux/s390/sys/user.h: New file. + * sysdeps/unix/sysv/linux/s390/sys/ucontext.h: New file. + * sysdeps/unix/sysv/linux/s390/sys/ptrace.h: New file. + * sysdeps/unix/sysv/linux/s390/sys/elf.h: New file. + * sysdeps/unix/sysv/linux/s390/socket.S: New file. + * sysdeps/unix/sysv/linux/s390/sigcontextinfo.h: New file. + * sysdeps/unix/sysv/linux/s390/shmctl.c: New file. + * sysdeps/unix/sysv/linux/s390/setreuid.c: New file. + * sysdeps/unix/sysv/linux/s390/setresuid.c: New file. + * sysdeps/unix/sysv/linux/s390/setresgid.c: New file. + * sysdeps/unix/sysv/linux/s390/setregid.c: New file. + * sysdeps/unix/sysv/linux/s390/setgroups.c: New file. + * sysdeps/unix/sysv/linux/s390/setgid.c: New file. + * sysdeps/unix/sysv/linux/s390/setfsuid.c: New file. + * sysdeps/unix/sysv/linux/s390/setfsgid.c: New file. + * sysdeps/unix/sysv/linux/s390/seteuid.c: New file. + * sysdeps/unix/sysv/linux/s390/setegid.c: New file. + * sysdeps/unix/sysv/linux/s390/semctl.c: New file. + * sysdeps/unix/sysv/linux/s390/register-dump.h: New file. + * sysdeps/unix/sysv/linux/s390/putpmsg.c: New file. + * sysdeps/unix/sysv/linux/s390/putmsg.c: New file. + * sysdeps/unix/sysv/linux/s390/profil-counter.h: New file. + * sysdeps/unix/sysv/linux/s390/msgctl.c: New file. + * sysdeps/unix/sysv/linux/s390/mmap.S: New file. + * sysdeps/unix/sysv/linux/s390/getuid.c: New file. + * sysdeps/unix/sysv/linux/s390/getresuid.c: New file. + * sysdeps/unix/sysv/linux/s390/getresgid.c: New file. + * sysdeps/unix/sysv/linux/s390/getpmsg.c: New file. + * sysdeps/unix/sysv/linux/s390/getmsg.c: New file. + * sysdeps/unix/sysv/linux/s390/getgroups.c: New file. + * sysdeps/unix/sysv/linux/s390/getegid.c: New file. + * sysdeps/unix/sysv/linux/s390/geteuid.c: New file. + * sysdeps/unix/sysv/linux/s390/fchown.c: New file. + * sysdeps/unix/sysv/linux/s390/clone.S: New file. + * sysdeps/unix/sysv/linux/s390/brk.c: New file. + * sysdeps/unix/sysv/linux/s390/bits/time.h: New file. + * sysdeps/unix/sysv/linux/s390/bits/resource.h: New file. + * sysdeps/unix/sysv/linux/s390/bits/mman.h: New file. + * sysdeps/unix/sysv/linux/s390/bits/fcntl.h: New file. + * sysdeps/unix/sysv/linux/s390/Makefile: New file. + * sysdeps/s390/sysdep.h: New file. + * sysdeps/s390/sys/ucontext.h: New file. + * sysdeps/s390/sub_n.S: New file. + * sysdeps/s390/strncpy.S: New file. + * sysdeps/s390/strcpy.S: New file. + * sysdeps/s390/stackinfo.h: New file. + * sysdeps/s390/setjmp.S: New file. + * sysdeps/s390/s390-mcount.S: New file. + * sysdeps/s390/mul_1.S: New file. + * sysdeps/s390/memusage.h: New file. + * sysdeps/s390/memset.S: New file. + * sysdeps/s390/memcpy.S: New file. + * sysdeps/s390/memchr.S: New file. + * sysdeps/s390/machine-gmon.h: New file. + * sysdeps/s390/ldbl2mpn.c: New file. + * sysdeps/s390/gmp-mparam.h: New file. + * sysdeps/s390/fpu/fpu_control.h: New file. + * sysdeps/s390/fpu/fesetround.c: New file. + * sysdeps/s390/fpu/fegetround.c: New file. + * sysdeps/s390/fpu/fclrexcpt.c: New file. + * sysdeps/s390/fpu/bits/fenv.h: New file. + * sysdeps/s390/ffs.c: New file. + * sysdeps/s390/elf/start.S: New file. + * sysdeps/s390/elf/setjmp.S: New file. + * sysdeps/s390/elf/bsd-setjmp.S: New file. + * sysdeps/s390/elf/bsd-_setjmp.S: New file. + * sysdeps/s390/dl-machine.h: New file. + * sysdeps/s390/bzero.S: New file. + * sysdeps/s390/bsd-setjmp.S: New file. + * sysdeps/s390/bsd-_setjmp.S: New file. + * sysdeps/s390/bits/string.h: New file. + * sysdeps/s390/bits/setjmp.h: New file. + * sysdeps/s390/bits/huge_val.h: New file. + * sysdeps/s390/bits/endian.h: New file. + * sysdeps/s390/bits/byteswap.h: New file. + * sysdeps/s390/bcopy.S: New file. + * sysdeps/s390/backtrace.c: New file. + * sysdeps/s390/atomicity.h: New file. + * sysdeps/s390/asm-syntax.h: New file. + * sysdeps/s390/addmul_1.S: New file. + * sysdeps/s390/add_n.S: New file. + * sysdeps/s390/abort-instr.h: New file. + * sysdeps/s390/__longjmp.c: New file. + * sysdeps/s390/Makefile: New file. + * sysdeps/s390/Implies: New file. + * sysdeps/s390/Dist: New file. + Patches by Martin Schwidefsky <schwidefsky@de.ibm.com>. + 2000-08-01 Ulrich Drepper <drepper@redhat.com> Remove incompatible IPv6 extension of RPC. diff --git a/sysdeps/s390/Dist b/sysdeps/s390/Dist new file mode 100644 index 0000000000..49292153c4 --- /dev/null +++ b/sysdeps/s390/Dist @@ -0,0 +1,2 @@ +s390-mcount.S +machine-gmon.h diff --git a/sysdeps/s390/Implies b/sysdeps/s390/Implies new file mode 100644 index 0000000000..71bec4de0c --- /dev/null +++ b/sysdeps/s390/Implies @@ -0,0 +1,4 @@ +wordsize-32 +ieee754 +ieee754/dbl-64 +ieee754/flt-32 diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile new file mode 100644 index 0000000000..057862d91b --- /dev/null +++ b/sysdeps/s390/Makefile @@ -0,0 +1,11 @@ +pic-ccflag = -fpic + +ifeq ($(subdir),gmon) +sysdep_routines += s390-mcount +endif + +ifeq ($(subdir),elf) +CFLAGS-rtld.c += -Wno-uninitialized -Wno-unused +CFLAGS-dl-load.c += -Wno-unused +CFLAGS-dl-reloc.c += -Wno-unused +endif diff --git a/sysdeps/s390/__longjmp.c b/sysdeps/s390/__longjmp.c new file mode 100644 index 0000000000..7606aefce2 --- /dev/null +++ b/sysdeps/s390/__longjmp.c @@ -0,0 +1,43 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <sysdep.h> +#include <setjmp.h> +#include <bits/setjmp.h> +#include <stdlib.h> +#include <unistd.h> + +/* Jump to the position specified by ENV, causing the + setjmp call there to return VAL, or 1 if VAL is 0. */ +void +__longjmp (__jmp_buf env, int val) +{ + unsigned int result; + + /* Restore registers and jump back */ + asm volatile("lr %%r2,%0\n\t" /* put val in grp 2 */ + "lm %%r6,%%r15,%1\n\t" + "br %%r14" + : : "r" (val == 0 ? 1 : val), + "m" (env->gregs[JB_GPR6]) : "2" ); + + /* Avoid `volatile function does return' warnings. */ + for (;;); +} diff --git a/sysdeps/s390/abort-instr.h b/sysdeps/s390/abort-instr.h new file mode 100644 index 0000000000..6544b2d618 --- /dev/null +++ b/sysdeps/s390/abort-instr.h @@ -0,0 +1,2 @@ +/* An op-code of 0 should crash any program. */ +#define ABORT_INSTRUCTION asm (".word 0") diff --git a/sysdeps/s390/add_n.S b/sysdeps/s390/add_n.S new file mode 100644 index 0000000000..4b7d8418c9 --- /dev/null +++ b/sysdeps/s390/add_n.S @@ -0,0 +1,63 @@ +/* Add two limb vectors of the same length > 0 and store sum in a third + limb vector. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation; either version 2 of the License, or (at your + option) any later version. + + The GNU MP Library is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + License for more details. + + You should have received a copy of the GNU Library General Public License + along with the GNU MP Library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. */ + +/* + INPUT PARAMETERS + res_ptr %r2 + s1_ptr %r3 + s2_ptr %r4 + size %r5 +*/ + +#include "sysdep.h" +#include "asm-syntax.h" + + .text +ENTRY(__mpn_add_n) + st %r6,24(%r15) # save register 6 + sr %r1,%r1 + lhi %r0,1 # cannot use ahi to add carry, use alr +.L0: l %r6,0(%r1,%r3) # .L0 -> no carry from last add + al %r6,0(%r1,%r4) + st %r6,0(%r1,%r2) + la %r1,4(0,%r1) + brc 3,.L3 +.L1: brct %r5,.L0 + slr %r2,%r2 # no last carry to return + j .Lexit +.L2: l %r6,0(%r1,%r3) # .L2 -> carry from last add + al %r6,0(%r1,%r4) + brc 3,.L4 + alr %r6,%r0 # no carry yet, add carry from last add + st %r6,0(%r1,%r2) + la %r1,4(0,%r1) + brc 12,.L1 # new carry ? +.L3: brct %r5,.L2 + lr %r2,%r0 # return last carry + j .Lexit +.L4: alr %r6,%r0 # already a carry, add carry from last add + st %r6,0(%r1,%r2) + la %r1,4(0,%r1) + brct %r5,.L2 + lr %r2,%r0 # return last carry +.Lexit: l %r6,24(%r15) # restore register 6 + br %r14 +END(__mpn_add_n) diff --git a/sysdeps/s390/addmul_1.S b/sysdeps/s390/addmul_1.S new file mode 100644 index 0000000000..c98a4c1524 --- /dev/null +++ b/sysdeps/s390/addmul_1.S @@ -0,0 +1,58 @@ +/* S390 __mpn_addmul_1 -- Multiply a limb vector with a limb and add + the result to a second limb vector. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation; either version 2 of the License, or (at your + option) any later version. + + The GNU MP Library is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + License for more details. + + You should have received a copy of the GNU Library General Public License + along with the GNU MP Library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. */ + +/* + INPUT PARAMETERS + res_ptr %r2 + s1_ptr %r3 + sizeP %r4 + s2_limb %r5 +*/ + +#include "sysdep.h" +#include "asm-syntax.h" + + .text +ENTRY(__mpn_addmul_1) + st %r6,24(%r15) + slr %r6,%r6 # cy_limb = 0 +.L0: icm %r1,15,0(%r3) # get s1_ptr[i] + mr %r0,%r5 # umul_ppmm(prod_high,prod_low,s1_ptr[j],s2_limb) + jnm .L1 + alr %r0,%r5 +.L1: ltr %r5,%r5 + jnm .L2 + al %r0,0(%r3) +.L2: alr %r1,%r6 # prod_low += cy_limb + lr %r6,%r0 # cy_limb = prod_high + brc 12,.L3 + ahi %r6,1 # + (prod_low < cy_limb) +.L3: al %r1,0(%r2) # prod_low += res_ptr[i] + brc 12,.L4 + ahi %r6,1 # cy_limb++ +.L4: st %r1,0(%r2) + la %r2,4(0,%r2) + la %r3,4(0,%r3) + brct %r4,.L0 + lr %r2,%r6 # return cy_limb + l %r6,24(%r15) +.Lexit: br %r14 +END(__mpn_addmul_1) diff --git a/sysdeps/s390/asm-syntax.h b/sysdeps/s390/asm-syntax.h new file mode 100644 index 0000000000..5e050f77f9 --- /dev/null +++ b/sysdeps/s390/asm-syntax.h @@ -0,0 +1,42 @@ +/* Definitions for S/390 syntax variations. + Copyright (C) 1992, 1994, 1995, 1997, 2000 Free Software Foundation, Inc. + + This file is part of the GNU C Library. Its master source is NOT part of + the C library, however. The master source lives in the GNU MP Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#undef ALIGN +#if defined NOLOG_ALIGN || defined HAVE_ELF +# define ALIGN(log) .align 1<<log +#else +# define ALIGN(log) .align log +#endif + +#undef L +#ifdef __ELF__ +# ifdef __STDC__ +# define L(body) .L##body +# else +# define L(body) .L/**/body +# endif +#else +# ifdef __STDC__ +# define L(body) L##body +# else +# define L(body) L/**/body +# endif +#endif diff --git a/sysdeps/s390/atomicity.h b/sysdeps/s390/atomicity.h new file mode 100644 index 0000000000..0c97f405ef --- /dev/null +++ b/sysdeps/s390/atomicity.h @@ -0,0 +1,74 @@ +/* Low-level functions for atomic operations. S390 version. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _ATOMICITY_H +#define _ATOMICITY_H 1 + +#include <inttypes.h> + +static inline int +__attribute__ ((unused)) +exchange_and_add (volatile uint32_t *mem, int val) +{ + int result; + __asm__ __volatile__( + " L %0,%2\n" + " LA 2,%1\n" + "0: LR 0,%0\n" + " AR 0,%3\n" + " CS %0,0,0(2)\n" + " JL 0b" + : "=&d" (result), "=m" (*mem) + : "1" (*mem), "d" (val) : "0", "1", "2" ); + return result; +} + +static inline void +__attribute__ ((unused)) +atomic_add (volatile uint32_t *mem, int val) +{ + __asm__ __volatile__( + " LA 2,%0\n" + "0: L 0,%1\n" + " LR 1,0\n" + " AR 1,%2\n" + " CS 0,1,0(2)\n" + " JL 0b" + : "=m" (*mem) : "0" (*mem), "d" (val) : "0", "1", "2" ); +} + +static inline int +__attribute__ ((unused)) +compare_and_swap (volatile long int *p, long int oldval, long int newval) +{ + int retval; + + __asm__ __volatile__( + " cs %2,%3,%1\n" + " ipm %0\n" + " srl %0,28\n" + "0:" + : "=&r" (retval), "+m" (*p) + : "d" (oldval) , "d" (newval) + : "memory", "cc"); + return !retval; +} + +#endif /* atomicity.h */ diff --git a/sysdeps/s390/backtrace.c b/sysdeps/s390/backtrace.c new file mode 100644 index 0000000000..5e7f802810 --- /dev/null +++ b/sysdeps/s390/backtrace.c @@ -0,0 +1,81 @@ +/* Return backtrace of current program state. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <execinfo.h> +#include <stddef.h> + +/* This is a global variable set at program start time. It marks the + highest used stack address. */ +extern void *__libc_stack_end; + + +/* This is the stack layout we see for every non-leaf function. + size offset + %r15 -> +------------------+ + 4 | back chain | 0 + 4 | end of stack | 4 + 8 | glue | 8 + 8 | scratch | 16 + 40 | save area r6-r15 | 24 + 16 | save area f4,f6 | 64 + 16 | empty | 80 + +------------------+ + r14 in the save area holds the return address. +*/ + +struct layout +{ + int back_chain; + int end_of_stack; + int glue[2]; + int scratch[2]; + int save_grps[10]; + int save_fp[4]; + int empty[2]; +}; + +int +__backtrace (array, size) + void **array; + int size; +{ + /* We assume that all the code is generated with frame pointers set. */ + struct layout *stack; + int cnt = 0; + + asm ("LR %0,%%r15" : "=d" (stack) ); + /* We skip the call to this function, it makes no sense to record it. */ + stack = (struct layout *) stack->back_chain; + while (cnt < size) + { + if (stack == NULL || (void *) stack > __libc_stack_end) + /* This means the address is out of range. Note that for the + toplevel we see a frame pointer with value NULL which clearly is + out of range. */ + break; + + array[cnt++] = stack->save_grps[9]; + + stack = (struct layout *) stack->back_chain; + } + + return cnt; +} +weak_alias (__backtrace, backtrace) diff --git a/sysdeps/s390/bcopy.S b/sysdeps/s390/bcopy.S new file mode 100644 index 0000000000..dafe9ee186 --- /dev/null +++ b/sysdeps/s390/bcopy.S @@ -0,0 +1,69 @@ +/* bcopy -- copy a block from source to destination. For IBM S390 + This file is part of the GNU C Library. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + The GNU C Library is free software ; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation ; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY ; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* + * R2 = address of source + * R3 = address of destination + * R4 = number of bytes to copy + */ + +#include "sysdep.h" +#include "asm-syntax.h" + + .text +ENTRY(__bcopy) + clr %r2,%r3 # check against destructive overlap + jnl .L0 + lr %r1,%r2 + alr %r1,%r4 + clr %r1,%r3 + jh .L2 +.L0: + lr %r5,%r4 # source length + lr %r4,%r2 # source address + sr %r1,%r1 # set pad byte to zero + lr %r2,%r3 # set destination + lr %r3,%r5 # destination length = source length +.L1: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend + jo .L1 + br %r14 +.L2: # destructive overlay, can not use mvcle + lr %r1,%r2 # bcopy is called with source,dest + lr %r2,%r3 # memmove with dest,source! Oh, well... + lr %r3,%r1 + basr %r1,0 +.L3: +#ifdef PIC + al %r1,.L4-.L3(%r1) # get address of global offset table + # load address of memmove + l %r1,memmove@GOT12(%r1) + br %r1 +.L4: .long _GLOBAL_OFFSET_TABLE_-.L3 +#else + al %r1,.L4-.L3(%r1) # load address of memmove + br %r1 # jump to memmove +.L4: .long memmove-.L3 +#endif + +END(__bcopy) + +#ifndef NO_WEAK_ALIAS +weak_alias (__bcopy, bcopy) +#endif diff --git a/sysdeps/s390/bits/byteswap.h b/sysdeps/s390/bits/byteswap.h new file mode 100644 index 0000000000..ad20e97dc6 --- /dev/null +++ b/sysdeps/s390/bits/byteswap.h @@ -0,0 +1,86 @@ +/* Macros to swap the order of bytes in integer values. s390 version. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#if !defined _BYTESWAP_H && !defined _NETINET_IN_H +# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." +#endif + +#define __bswap_constant_16(x) \ + ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) + +/* Swap bytes in 16 bit value. */ +#if defined __GNUC__ && __GNUC__ >= 2 +# define __bswap_16(x) \ + (__extension__ \ + ({ unsigned short int __v; \ + if (__builtin_constant_p (x)) \ + __v = __bswap_constant_16 (x); \ + else { \ + unsigned short int __tmp = (unsigned short int) (x); \ + __asm__ __volatile__ ( \ + "sr %0,%0\n" \ + "la 1,%1\n" \ + "icm %0,2,1(1)\n" \ + "ic %0,0(1)" \ + : "=&d" (__v) : "m" (__tmp) : "1"); \ + } \ + __v; })) +#else +/* This is better than nothing. */ +#define __bswap_16(x) __bswap_constant_16 (x) +#endif + +/* Swap bytes in 32 bit value. */ +#define __bswap_constant_32(x) \ + ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ + (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) + +#if defined __GNUC__ && __GNUC__ >= 2 +# define __bswap_32(x) \ + (__extension__ \ + ({ unsigned int __v; \ + if (__builtin_constant_p (x)) \ + __v = __bswap_constant_32 (x); \ + else { \ + unsigned int __tmp = (unsigned int) (x); \ + __asm__ __volatile__ ( \ + "la 1,%1\n" \ + "icm %0,8,3(1)\n" \ + "icm %0,4,2(1)\n" \ + "icm %0,2,1(1)\n" \ + "ic %0,0(1)" \ + : "=&d" (__v) : "m" (__tmp) : "1"); \ + } \ + __v; })) +#else +# define __bswap_32(x) __bswap_constant_32 (x) +#endif + +#if defined __GNUC__ && __GNUC__ >= 2 +/* Swap bytes in 64 bit value. */ +# define __bswap_64(x) \ + __extension__ \ + ({ union { unsigned long long int __ll; \ + unsigned long int __l[2]; } __w, __r; \ + __w.__ll = (x); \ + __r.__l[0] = __bswap_32 (__w.__l[1]); \ + __r.__l[1] = __bswap_32 (__w.__l[0]); \ + __r.__ll; }) +#endif diff --git a/sysdeps/s390/bits/endian.h b/sysdeps/s390/bits/endian.h new file mode 100644 index 0000000000..ac27f0119a --- /dev/null +++ b/sysdeps/s390/bits/endian.h @@ -0,0 +1,7 @@ +/* s390 is big-endian */ + +#ifndef _ENDIAN_H +# error "Never use <bits/endian.h> directly; include <endian.h> instead." +#endif + +#define __BYTE_ORDER __BIG_ENDIAN diff --git a/sysdeps/s390/bits/huge_val.h b/sysdeps/s390/bits/huge_val.h new file mode 100644 index 0000000000..0c8264c90f --- /dev/null +++ b/sysdeps/s390/bits/huge_val.h @@ -0,0 +1,73 @@ +/* `HUGE_VAL' constants for s390 (where it is infinity). + Used by <stdlib.h> and <math.h> functions for overflow. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _MATH_H +# error "Never use <bits/huge_val.h> directly; include <math.h> instead." +#endif + +#include <features.h> + +/* IEEE positive infinity (-HUGE_VAL is negative infinity). */ + +#if __GNUC_PREREQ(2,96) +# define HUGE_VAL (__extension__ 0x1.0p2047) +#else +#define __HUGE_VAL_bytes { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 } + +#define __huge_val_t union { unsigned char __c[8]; double __d; } +#ifdef __GNUC__ +# define HUGE_VAL (__extension__ \ + ((__huge_val_t) { __c: __HUGE_VAL_bytes }).__d) +#else /* Not GCC. */ +static __huge_val_t __huge_val = { __HUGE_VAL_bytes }; +# define HUGE_VAL (__huge_val.__d) +#endif /* GCC. */ +#endif /* GCC 2.95 */ + + +/* ISO C 99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */ + +#ifdef __USE_ISOC99 + +# if __GNUC_PREREQ(2,96) + +# define HUGE_VALF (__extension__ 0x1.0p255f) +# define HUGE_VALL (__extension__ 0x1.0p255f) + +# else + +# define __HUGE_VALF_bytes { 0x7f, 0x80, 0, 0 } + +# define __huge_valf_t union { unsigned char __c[4]; float __f; } +# ifdef __GNUC__ +# define HUGE_VALF (__extension__ \ + ((__huge_valf_t) { __c: __HUGE_VALF_bytes }).__f) +# else /* Not GCC. */ +static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes }; +# define HUGE_VALF (__huge_valf.__f) +# endif /* GCC. */ + +/* On 390 there is no 'long double' format. Make it the same as 'double' */ +# define HUGE_VALL HUGE_VAL + +# endif /* GCC 2.95 */ + +#endif /* __USE_ISOC99. */ diff --git a/sysdeps/s390/bits/setjmp.h b/sysdeps/s390/bits/setjmp.h new file mode 100644 index 0000000000..e778e9c6d5 --- /dev/null +++ b/sysdeps/s390/bits/setjmp.h @@ -0,0 +1,52 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* Define the machine-dependent type `jmp_buf'. IBM s390 version. */ + +#ifndef __S390_SETJMP_H__ +#define __S390_SETJMP_H__ + +#define JB_GPR6 0 +#define JB_GPR7 1 +#define JB_GPR8 2 +#define JB_GPR9 3 +#define JB_GPR10 4 +#define JB_GPR11 5 +#define JB_GPR12 6 +#define JB_GPR13 7 +#define JB_GPR14 8 +#define JB_GPR15 9 + +#ifndef _ASM + +typedef struct { + /* We save registers 6-15 */ + long int gregs[10]; + + /* We save fpu registers 4 and 6 */ + long long fpregs[2]; +} __jmp_buf[1]; + +#endif + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((int) (address) < (jmpbuf)->gregs[JB_GPR15]) + +#endif /* __S390_SETJMP_H__ */ diff --git a/sysdeps/s390/bits/string.h b/sysdeps/s390/bits/string.h new file mode 100644 index 0000000000..4aeb146f3e --- /dev/null +++ b/sysdeps/s390/bits/string.h @@ -0,0 +1,140 @@ +/* Optimized, inlined string functions. s390 version. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _STRING_H +# error "Never use <bits/string.h> directly; include <string.h> instead." +#endif + +/* The s390 processors can access unaligned multi-byte variables. */ +#define _STRING_ARCH_unaligned 1 + + +/* We only provide optimizations if the user selects them and if + GNU CC is used. */ +#if !defined __NO_STRING_INLINES && defined __USE_STRING_INLINES \ + && defined __GNUC__ && __GNUC__ >= 2 + +#ifdef __cplusplus +# define __STRING_INLINE inline +#else +# define __STRING_INLINE extern __inline +#endif + +#define _HAVE_STRING_ARCH_strlen 1 +__STRING_INLINE size_t +strlen (__const char *__str) +{ + size_t __len; + + __asm__ __volatile__ (" sr 0,0\n" + " lr %0,%1\n" + "0: srst 0,%0\n" + " jo 0b\n" + " lr %0,0\n" + " sr %0,%1" + : "=&a" (__len) : "a" (__str) + : "cc", "0" ); + return __len; +} + +/* Copy SRC to DEST. */ +#define _HAVE_STRING_ARCH_strcpy 1 +__STRING_INLINE char * +strcpy (char *__dest, __const char *__src) +{ + char *tmp = __dest; + + __asm__ __volatile__ (" sr 0,0\n" + "0: mvst %0,%1\n" + " jo 0b" + : "+&a" (__dest), "+&a" (__src) : + : "cc", "memory", "0" ); + return tmp; +} + +#define _HAVE_STRING_ARCH_strncpy 1 +__STRING_INLINE char * +strncpy (char *__dest, __const char *__src, size_t __n) +{ + char *tmp = __dest; + + if (__n <= 0) + return tmp; + __asm__ __volatile (" slr %0,%1\n" + "0: icm 0,1,0(%1)\n" + " stc 0,0(%0,%1)\n" + " jz 2f\n" + " la %1,1(%1)\n" + " brct %2,0b\n" + " j 3f\n" + "1: la %1,1(%1)\n" + " stc 0,0(%0,%1)\n" + "2: brct %2,1b\n" + "3:" + : "+&a" (__dest), "+&a" (__src), "+&d" (__n) : + : "cc", "memory", "0" ); + return tmp; +} + +/* Append SRC onto DEST. */ +#define _HAVE_STRING_ARCH_strcat 1 +__STRING_INLINE char * +strcat(char *__dest, const char *__src) +{ + char *tmp = __dest; + + __asm__ __volatile__ (" sr 0,0\n" + "0: srst 0,%0\n" + " jo 0b\n" + " lr %0,0\n" + " sr 0,0\n" + "1: mvst %0,%1\n" + " jo 1b" + : "+&a" (__dest), "+&a" (__src) : + : "cc", "memory", "0" ); + return tmp; +} + +/* Append no more than N characters from SRC onto DEST. */ +#define _HAVE_STRING_ARCH_strncat 1 +__STRING_INLINE char * +strncat (char *__dest, __const char *__src, size_t __n) +{ + char *tmp = __dest; + + if (__n <= 0) + return tmp; + __asm__ __volatile__ (" sr 0,0\n" + "0: srst 0,%0\n" + " jo 0b\n" + " lr %0,0\n" + " slr %0,%1\n" + "1: icm 0,1,0(%1)\n" + " stc 0,0(%0,%1)\n" + " jz 2f\n" + " la %1,1(%1)\n" + " brct %2,1b\n" + "2:" + : "+&a" (__dest), "+&a" (__src), "+&d" (__n) : + : "cc", "memory", "0" ); + return tmp; +} + +#endif /* Use string inlines && GNU CC. */ diff --git a/sysdeps/s390/bsd-_setjmp.S b/sysdeps/s390/bsd-_setjmp.S new file mode 100644 index 0000000000..2b664409de --- /dev/null +++ b/sysdeps/s390/bsd-_setjmp.S @@ -0,0 +1,46 @@ +/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. s390 version. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software ; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation ; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY ; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* This just does a tail-call to `__sigsetjmp (ARG, 0)'. + We cannot do it in C because it must be a tail-call, so frame-unwinding + in setjmp doesn't clobber the state restored by longjmp. */ + +#include <sysdep.h> + +ENTRY(_setjmp) +#ifdef PIC + /* We cannot use the PLT, because it requires that %r12 be set, but + we can't save and restore our caller's value. Instead, we do an + indirect jump through the GOT. */ + basr %r1,0 +.L0: al %r1,.L1 - .L0(0,%r1) /* get address of global offset table */ + /* get address of __sigjmp_save from got */ + l %r1,__sigjmp_save@GOT12(0,%r1) + lhi %r3,0 /* second argument of one */ + br %r1 +.L1: .long _GLOBAL_OFFSET_TABLE_ - .L0 +#else + basr %r1,0 +.L0: l %r1,.L1 - .L0(0,%r1) /* load address of __sigsetjmp */ + lhi %r3,0 /* second argument of zero */ + br %r1 /* branch to __sigsetjmp */ +.L1: .long __sigsetjmp +#endif +END (_setjmp) diff --git a/sysdeps/s390/bsd-setjmp.S b/sysdeps/s390/bsd-setjmp.S new file mode 100644 index 0000000000..ab5aa0c663 --- /dev/null +++ b/sysdeps/s390/bsd-setjmp.S @@ -0,0 +1,46 @@ +/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. s390 version. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software ; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation ; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY ; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* This just does a tail-call to `__sigsetjmp (ARG, 1)'. + We cannot do it in C because it must be a tail-call, so frame-unwinding + in setjmp doesn't clobber the state restored by longjmp. */ + +#include <sysdep.h> + +ENTRY(setjmp) +#ifdef PIC + /* We cannot use the PLT, because it requires that %r12 be set, but + we can't save and restore our caller's value. Instead, we do an + indirect jump through the GOT. */ + basr %r1,0 +.L0: al %r1,.L1 - .L0(0,%r1) /* get address of global offset table */ + /* get address of __sigjmp_save from got */ + l %r1,__sigjmp_save@GOT12(0,%r1) + lhi %r3,1 /* second argument of one */ + br %r1 +.L1: .long _GLOBAL_OFFSET_TABLE_ - .L0 +#else + basr %r1,0 +.L0: l %r1,.L1 - .L0(0,%r1) /* load address of __sigsetjmp */ + lhi %r3,1 /* second argument of zero */ + br %r1 /* branch to __sigsetjmp */ +.L1: .long __sigsetjmp +#endif +END (setjmp) diff --git a/sysdeps/s390/bzero.S b/sysdeps/s390/bzero.S new file mode 100644 index 0000000000..4d0db82fa0 --- /dev/null +++ b/sysdeps/s390/bzero.S @@ -0,0 +1,43 @@ +/* bzero -- set a block of memory to zero. IBM S390 version + This file is part of the GNU C Library. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* + * R2 = address to memory area + * R3 = number of bytes to fill + */ + +#include "sysdep.h" +#include "asm-syntax.h" + + .text +ENTRY(__bzero) + ltr %r3,%r3 + jz .L1 + sr %r1,%r1 # set pad byte to zero + sr %r4,%r4 # no source for MVCLE, only a pad byte + sr %r5,%r5 +.L0: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend + jo .L0 +.L1: br %r14 +END(__bzero) + +#ifndef NO_WEAK_ALIAS +weak_alias (__bzero, bzero) +#endif diff --git a/sysdeps/s390/dl-machine.h b/sysdeps/s390/dl-machine.h new file mode 100644 index 0000000000..3cab824ce2 --- /dev/null +++ b/sysdeps/s390/dl-machine.h @@ -0,0 +1,464 @@ +/* Machine-dependent ELF dynamic relocation inline functions. S390 Version. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Carl Pederson & Martin Schwidefsky. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef dl_machine_h +#define dl_machine_h + + +#define ELF_MACHINE_NAME "s390" + +#include <sys/param.h> +#include <string.h> +#include <link.h> + + +/* Return nonzero iff E_MACHINE is compatible with the running host. */ +static inline int +elf_machine_matches_host (Elf32_Half e_machine) +{ + switch (e_machine) + { + case EM_S390: + return 1; + default: + return 0; + } +} + + +/* Return the link-time address of _DYNAMIC. Conveniently, this is the + first element of the GOT. This must be inlined in a function which + uses global data. */ + +static inline Elf32_Addr +elf_machine_dynamic (void) +{ + register Elf32_Addr *got; + + asm( " bras %0,2f\n" + "1: .long _GLOBAL_OFFSET_TABLE_-1b\n" + "2: al %0,0(%0)" + : "=&a" (got) : : "0" ); + + return *got; +} + + +/* Return the run-time load address of the shared object. */ +static inline Elf32_Addr +elf_machine_load_address (void) +{ + Elf32_Addr addr; + + asm( " bras 1,2f\n" + "1: .long _GLOBAL_OFFSET_TABLE_ - 1b\n" + " .long _dl_start - 1b - 0x80000000\n" + "2: l %0,4(1)\n" + " ar %0,1\n" + " al 1,0(1)\n" + " sl %0,_dl_start@GOT12(1)" + : "=&d" (addr) : : "1" ); + return addr; +} + +/* Set up the loaded object described by L so its unrelocated PLT + entries will jump to the on-demand fixup code in dl-runtime.c. */ + +static inline int __attribute__ ((unused)) +elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) +{ + extern void _dl_runtime_resolve (Elf32_Word); + extern void _dl_runtime_profile (Elf32_Word); + + if (l->l_info[DT_JMPREL] && lazy) + { + /* The GOT entries for functions in the PLT have not yet been filled + in. Their initial contents will arrange when called to push an + offset into the .rel.plt section, push _GLOBAL_OFFSET_TABLE_[1], + and then jump to _GLOBAL_OFFSET_TABLE[2]. */ + Elf32_Addr *got; + got = (Elf32_Addr *) D_PTR (l, l_info[DT_PLTGOT]); + got[1] = (Elf32_Addr) l; /* Identify this shared object. */ + + /* The got[2] entry contains the address of a function which gets + called to get the address of a so far unresolved function and + jump to it. The profiling extension of the dynamic linker allows + to intercept the calls to collect information. In this case we + don't store the address in the GOT so that all future calls also + end in this function. */ + if (__builtin_expect (profile, 0)) + { + got[2] = (Elf32_Addr) &_dl_runtime_profile; + + if (_dl_name_match_p (_dl_profile, l)) + /* This is the object we are looking for. Say that we really + want profiling and the timers are started. */ + _dl_profile_map = l; + } + else + /* This function will get called to fix up the GOT entry indicated by + the offset on the stack, and then jump to the resolved address. */ + got[2] = (Elf32_Addr) &_dl_runtime_resolve; + } + + return lazy; +} + +/* This code is used in dl-runtime.c to call the `fixup' function + and then redirect to the address it returns. */ + +/* s390: + Arguments are in register. + r2 - r7 holds the original parameters for the function call, fixup + and trampoline code use r0-r5 and r14-15. For the correct function + call r2-r5 and r14-15 must be restored. + Arguments from the PLT are stored at 24(r15) and 28(r15) + and must be moved to r2 and r3 for the fixup call (see elf32-s390.c + in the binutils for the PLT code). + Fixup function address in r2. +*/ +#ifndef PROF +#define ELF_MACHINE_RUNTIME_TRAMPOLINE \ + asm ( "\ + .text\n\ + .globl _dl_runtime_resolve\n\ + .type _dl_runtime_resolve, @function\n\ + .align 16\n\ +_dl_runtime_resolve:\n\ + # save registers\n\ + stm 2,5,32(15)\n\ + st 14,48(15)\n\ + lr 0,15\n\ + ahi 15,-96\n\ + st 0,0(15)\n\ + # load args saved by PLT\n\ + lm 2,3,120(15)\n\ + basr 1,0\n\ +0: ahi 1,1f-0b\n\ + l 14,0(1)\n\ + bas 14,0(14,1) # call fixup\n\ + lr 1,2 # function addr returned in r2\n\ + # restore registers\n\ + ahi 15,96\n\ + l 14,48(15)\n\ + lm 2,5,32(15)\n\ + br 1\n\ +1: .long fixup-1b\n\ + .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\ +\n\ + .globl _dl_runtime_profile\n\ + .type _dl_runtime_profile, @function\n\ + .align 16\n\ +_dl_runtime_profile:\n\ + # save registers\n\ + stm 2,5,32(15)\n\ + st 14,48(15)\n\ + lr 0,15\n\ + ahi 15,-96\n\ + st 0,0(15)\n\ + # load args saved by PLT\n\ + lm 2,3,120(15)\n\ + # load return address as third parameter\n\ + lr 4,14\n\ + basr 1,0\n\ +0: ahi 1,1f-0b\n\ + l 14,0(1)\n\ + bas 14,0(14,1) # call fixup\n\ + lr 1,2 # function addr returned in r2\n\ + # restore registers\n\ + ahi 15,96\n\ + l 14,48(15)\n\ + lm 2,5,32(15)\n\ + br 1\n\ +1: .long profile_fixup-1b\n\ + .size _dl_runtime_profile, .-_dl_runtime_profile\n\ +"); +#else +#define ELF_MACHINE_RUNTIME_TRAMPOLINE \ + asm ( "\ + .text\n\ + .globl _dl_runtime_resolve\n\ + .globl _dl_runtime_profile\n\ + .type _dl_runtime_resolve, @function\n\ + .type _dl_runtime_profile, @function\n\ + .align 16\n\ +_dl_runtime_resolve:\n\ +_dl_runtime_profile:\n\ + # save registers\n\ + stm 2,5,32(15)\n\ + st 14,48(15)\n\ + lr 0,15\n\ + ahi 15,-96\n\ + st 0,0(15)\n\ + # load args saved by PLT\n\ + lm 2,3,120(15)\n\ + # load return address as third parameter\n\ + lr 4,14\n\ + basr 1,0\n\ +0: ahi 1,1f-0b\n\ + l 14,0(1)\n\ + bas 14,0(14,1) # call fixup\n\ + lr 1,2 # function addr returned in r2\n\ + # restore registers\n\ + ahi 15,96\n\ + l 14,48(15)\n\ + lm 2,5,32(15)\n\ + br 1\n\ +1: .long fixup-1b\n\ + .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\ + .size _dl_runtime_profile, .-_dl_runtime_profile\n\ +"); +#endif + +/* The PLT uses Elf32_Rela relocs. */ +#define elf_machine_relplt elf_machine_rela + +/* Mask identifying addresses reserved for the user program, + where the dynamic linker should not map anything. */ +#define ELF_MACHINE_USER_ADDRESS_MASK 0xf8000000UL + +/* Initial entry point code for the dynamic linker. + The C function `_dl_start' is the real entry point; + its return value is the user program's entry point. */ + +#define RTLD_START asm ("\n\ +.text\n\ +.align 4\n\ +.globl _start\n\ +.globl _dl_start_user\n\ +_start:\n\ + basr %r13,0\n\ +.L0: ahi %r13,.Llit-.L0\n\ + lr %r2,%r15\n\ + # Alloc stack frame\n\ + ahi %r15,-96\n\ + # Set the back chain to zero\n\ + xc 0(4,%r15),0(%r15)\n\ + # Call _dl_start with %r2 pointing to arg on stack\n\ + l %r14,.Ladr1-.Llit(%r13)\n\ + bas %r14,0(%r14,%r13) # call _dl_start\n\ +_dl_start_user:\n\ + # Save the user entry point address in %r8.\n\ + lr %r8,%r2\n\ + # Point %r12 at the GOT.\n\ + l %r12,.Ladr0-.Llit(%r13)\n\ + ar %r12,%r13\n\ + # Store the highest stack address\n\ + l %r1,__libc_stack_end@GOT(%r12)\n\ + st %r15, 0(%r1)\n\ + # See if we were run as a command with the executable file\n\ + # name as an extra leading argument.\n\ + l %r1,_dl_skip_args@GOT12(0,%r12)\n\ + l %r1,0(%r1) # load _dl_skip_args\n\ + # Get the original argument count.\n\ + l %r0,96(%r15)\n\ + # Subtract _dl_skip_args from it.\n\ + sr %r0,%r1\n\ + # Adjust the stack pointer to skip _dl_skip_args words.\n\ + sll %r1,2\n\ + ar %r15,%r1\n\ + # Set the back chain to zero again\n\ + xc 0(4,%r15),0(%r15)\n\ + # Store back the modified argument count.\n\ + st %r0,96(%r15)\n\ + # The special initializer gets called with the stack just\n\ + # as the application's entry point will see it; it can\n\ + # switch stacks if it moves these contents over.\n\ +" RTLD_START_SPECIAL_INIT "\n\ + # Call the function to run the initializers.\n\ + # Load the parameters:\n\ + # (%r2, %r3, %r4, %r5) = (_dl_loaded, argc, argv, envp)\n\ + l %r2,_dl_loaded@GOT(%r12)\n\ + l %r2,0(%r2)\n\ + l %r3,96(%r15)\n\ + la %r4,100(%r15)\n\ + lr %r5,%r3\n\ + sll %r5,2\n\ + la %r5,104(%r5,%r15)\n\ + l %r1,.Ladr4-.Llit(%r13)\n\ + bas %r14,0(%r1,%r13)\n\ + # Pass our finalizer function to the user in %r14, as per ELF ABI.\n\ + l %r14,_dl_fini@GOT(%r12)\n\ + # Free stack frame\n\ + ahi %r15,96\n\ + # Jump to the user's entry point (saved in %r8).\n\ + br %r8\n\ +.Llit:\n\ +.Ladr0: .long _GLOBAL_OFFSET_TABLE_-.Llit\n\ +.Ladr1: .long _dl_start-.Llit\n\ +.Ladr4: .long _dl_init@PLT-.Llit\n\ +"); + +#ifndef RTLD_START_SPECIAL_INIT +#define RTLD_START_SPECIAL_INIT /* nothing */ +#endif + +/* Nonzero iff TYPE describes relocation of a PLT entry, so + PLT entries should not be allowed to define the value. */ +#define elf_machine_pltrel_p(type) ((type) == R_390_JMP_SLOT) + +/* Nonzero iff TYPE should not be allowed to resolve to one of + the main executable's symbols, as for a COPY reloc. */ +#define elf_machine_lookup_noexec_p(type) ((type) == R_390_COPY) + +/* Nonzero iff TYPE describes relocation of a PLT entry, so + PLT entries should not be allowed to define the value. */ +#define elf_machine_lookup_noplt_p(type) ((type) == R_390_JMP_SLOT) + +/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */ +#define ELF_MACHINE_JMP_SLOT R_390_JMP_SLOT + +/* The S390 never uses Elf32_Rel relocations. */ +#define ELF_MACHINE_NO_REL 1 + +/* The S390 overlaps DT_RELA and DT_PLTREL. */ +#define ELF_MACHINE_PLTREL_OVERLAP 1 + +/* We define an initialization functions. This is called very early in + _dl_sysdep_start. */ +#define DL_PLATFORM_INIT dl_platform_init () + +extern const char *_dl_platform; + +static inline void __attribute__ ((unused)) +dl_platform_init (void) +{ + if (_dl_platform != NULL && *_dl_platform == '\0') + /* Avoid an empty string which would disturb us. */ + _dl_platform = NULL; +} + +static inline Elf32_Addr +elf_machine_fixup_plt (struct link_map *map, lookup_t t, + const Elf32_Rela *reloc, + Elf32_Addr *reloc_addr, Elf32_Addr value) +{ + return *reloc_addr = value; +} + +/* Return the final value of a plt relocation. */ +static inline Elf32_Addr +elf_machine_plt_value (struct link_map *map, const Elf32_Rela *reloc, + Elf32_Addr value) +{ + return value; +} + +#endif /* !dl_machine_h */ + + +#ifdef RESOLVE + +/* Perform the relocation specified by RELOC and SYM (which is fully resolved). + MAP is the object containing the reloc. */ + +static inline void +elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc, + const Elf32_Sym *sym, const struct r_found_version *version, + Elf32_Addr *const reloc_addr) +{ + if (ELF32_R_TYPE (reloc->r_info) == R_390_RELATIVE) { +#ifndef RTLD_BOOTSTRAP + if (map != &_dl_rtld_map) /* Already done in rtld itself. */ +#endif + *reloc_addr = map->l_addr + reloc->r_addend; + } + else if (ELF32_R_TYPE (reloc->r_info) != R_390_NONE) + { + const Elf32_Sym *const refsym = sym; + Elf32_Addr value = RESOLVE (&sym, version, ELF32_R_TYPE (reloc->r_info)); + if (sym) + value += sym->st_value; + + switch (ELF32_R_TYPE (reloc->r_info)) + { + case R_390_COPY: + if (sym == NULL) + /* This can happen in trace mode if an object could not be + found. */ + break; + if (__builtin_expect (sym->st_size > refsym->st_size, 0) + || (__builtin_expect (sym->st_size < refsym->st_size, 0) + && __builtin_expect (_dl_verbose, 0))) + { + const char *strtab; + + strtab = (const char *) D_PTR(map,l_info[DT_STRTAB]); + _dl_sysdep_error (_dl_argv[0] ?: "<program name unknown>", + ": Symbol `", strtab + refsym->st_name, + "' has different size in shared object, " + "consider re-linking\n", NULL); + } + memcpy (reloc_addr, (void *) value, MIN (sym->st_size, + refsym->st_size)); + break; + case R_390_GLOB_DAT: + case R_390_JMP_SLOT: + *reloc_addr = value; + break; + case R_390_32: + { +#ifndef RTLD_BOOTSTRAP + /* This is defined in rtld.c, but nowhere in the static + libc.a; make the reference weak so static programs can + still link. This declaration cannot be done when + compiling rtld.c (i.e. #ifdef RTLD_BOOTSTRAP) because + rtld.c contains the common defn for _dl_rtld_map, which + is incompatible with a weak decl in the same file. */ + weak_extern (_dl_rtld_map); + if (map == &_dl_rtld_map) + /* Undo the relocation done here during bootstrapping. + Now we will relocate it anew, possibly using a + binding found in the user program or a loaded library + rather than the dynamic linker's built-in definitions + used while loading those libraries. */ + value -= map->l_addr + refsym->st_value; +#endif + *reloc_addr = value + reloc->r_addend; + break; + } + + case R_390_PC32: + *reloc_addr = value +reloc->r_addend - (Elf32_Addr) reloc_addr; + break; + case R_390_NONE: + break; + default: + _dl_reloc_bad_type (map, ELFW(R_TYPE) (reloc->r_info), 0); + break; + } + } +} + + +static inline void +elf_machine_lazy_rel (struct link_map *map, + Elf32_Addr l_addr, const Elf32_Rela *reloc) +{ + Elf32_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset); + /* Check for unexpected PLT reloc type. */ + if (__builtin_expect (ELF32_R_TYPE (reloc->r_info), R_390_JMP_SLOT) + == R_390_JMP_SLOT) + *reloc_addr += l_addr; + else + _dl_reloc_bad_type (map, ELFW(R_TYPE) (reloc->r_info), 1); +} + +#endif /* RESOLVE */ diff --git a/sysdeps/s390/elf/bsd-_setjmp.S b/sysdeps/s390/elf/bsd-_setjmp.S new file mode 100644 index 0000000000..1417270201 --- /dev/null +++ b/sysdeps/s390/elf/bsd-_setjmp.S @@ -0,0 +1 @@ +/* We don't need any code here since the setjmp.S file contains it. */ diff --git a/sysdeps/s390/elf/bsd-setjmp.S b/sysdeps/s390/elf/bsd-setjmp.S new file mode 100644 index 0000000000..1417270201 --- /dev/null +++ b/sysdeps/s390/elf/bsd-setjmp.S @@ -0,0 +1 @@ +/* We don't need any code here since the setjmp.S file contains it. */ diff --git a/sysdeps/s390/elf/setjmp.S b/sysdeps/s390/elf/setjmp.S new file mode 100644 index 0000000000..952cba2102 --- /dev/null +++ b/sysdeps/s390/elf/setjmp.S @@ -0,0 +1,58 @@ +/* setjmp for s390, ELF version. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> +#define _ASM +#define _SETJMP_H +#include <bits/setjmp.h> + + /* We include the BSD entry points here as well but we make + them weak. */ +ENTRY (setjmp) + .weak C_SYMBOL_NAME (setjmp) + lhi %r3,1 /* second argument of one */ + j __sigsetjmp /* branch relativ to __sigsetjmp */ +END (setjmp) + + /* Binary compatibility entry point. */ +ENTRY(_setjmp) + .weak C_SYMBOL_NAME (_setjmp) +ENTRY(__setjmp) + lhi %r3,0 /* second argument of zero */ + +ENTRY(__sigsetjmp) + stm %r6,%r15,0(%r2) /* store registers in jmp_buf */ +#ifdef PIC + /* We cannot use the PLT, because it requires that %r12 be set, but + we can't save and restore our caller's value. Instead, we do an + indirect jump through the GOT. */ + basr %r1,0 +.L0: al %r1,.L1 - .L0(0,%r1) /* get address of global offset table */ + /* get address of __sigjmp_save from got */ + l %r1,__sigjmp_save@GOT12(0,%r1) + br %r1 +.L1: .long _GLOBAL_OFFSET_TABLE_ - .L0 +#else + basr %r1,0 +.L0: l %r1,.L1-.L0(0,%r1) /* load address of __sigjmp_save */ + br %r1 /* tail-call __sigjmp_save */ +.L1: .long __sigjmp_save +#endif +END (__sigsetjmp) diff --git a/sysdeps/s390/elf/start.S b/sysdeps/s390/elf/start.S new file mode 100644 index 0000000000..1455572af8 --- /dev/null +++ b/sysdeps/s390/elf/start.S @@ -0,0 +1,95 @@ +/* Startup code compliant to the ELF s390 ABI. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* + This is the canonical entry point, usually the first thing in the text + segment. Most registers' values are unspecified, except for: + + %r14 Contains a function pointer to be registered with `atexit'. + This is how the dynamic linker arranges to have DT_FINI + functions called for shared libraries that have been loaded + before this code runs. + + %r15 The stack contains the arguments and environment: + 0(%r15) argc + 4(%r15) argv[0] + ... + (4*argc)(%r15) NULL + (4*(argc+1))(%r15) envp[0] + ... + NULL +*/ + + .text + .globl _start +_start: + /* Setup pointer to literal pool of _start */ + basr %r13,0 +.L0: ahi %r13,.Llit-.L0 + + /* load argc and argv from stack */ + la %r4,4(%r15) # get argv + l %r3,0(%r15) # get argc + + /* align the stack to a double word boundary */ + lhi %r0,-8 + nr %r15,%r0 + + /* Setup a stack frame and a parameter area */ + ahi %r15,-104 # make room on stack + xc 0(4,%r15),0(%r15) # clear back-chain + + /* set up arguments for __libc_start_main: + main, argc, argv, envp, _init, _fini, rtld_fini, stack_end + Note that envp will be determined later in __libc_start_main + */ + stm %r14,%r15,96(%r15) # store rtld_fini/stack_end to parameter area + la %r7,96(%r15) + l %r6,.L2-.Llit(%r13) # load pointer to _fini + l %r5,.L1-.Llit(%r13) # load pointer to _init + l %r2,.L3-.Llit(%r13) # load pointer to main + + /* ok, now branch to the libc main routine */ + l %r1,.L4-.Llit(%r13) + basr %r14,%r1 + + /* crash if __libc_start_main returns */ + .word 0 + +.Llit: +.L1: .long _init +.L2: .long _fini +.L3: .long main +.L4: .long __libc_start_main + +/* FIXME: FPU flags or what ?!? */ + + .section .rodata + .globl _fp_hw + .long 3 + .size _fp_hw, 4 + +/* Define a symbol for the first piece of initialized data. */ + .data + .globl __data_start +__data_start: + .long 0 + .weak data_start + data_start = __data_start diff --git a/sysdeps/s390/ffs.c b/sysdeps/s390/ffs.c new file mode 100644 index 0000000000..b6ed821e58 --- /dev/null +++ b/sysdeps/s390/ffs.c @@ -0,0 +1,68 @@ +/* ffs -- find first set bit in a word, counted from least significant end. + This file is part of the GNU C Library. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#define ffsl __something_else +#include <string.h> + +#undef ffs + +/* + * ffs: find first bit set. This is defined the same way as + * the libc and compiler builtin ffs routines, therefore + * differs in spirit from the above ffz (man ffs). + */ + +int +__ffs (x) + int x; +{ + int r; + + if (x == 0) + return 0; + __asm__(" lr %%r1,%1\n" + " sr %0,%0\n" + " tml %%r1,0xFFFF\n" + " jnz 0f\n" + " ahi %0,16\n" + " srl %%r1,16\n" + "0: tml %%r1,0x00FF\n" + " jnz 1f\n" + " ahi %0,8\n" + " srl %%r1,8\n" + "1: tml %%r1,0x000F\n" + " jnz 2f\n" + " ahi %0,4\n" + " srl %%r1,4\n" + "2: tml %%r1,0x0003\n" + " jnz 3f\n" + " ahi %0,2\n" + " srl %%r1,2\n" + "3: tml %%r1,0x0001\n" + " jnz 4f\n" + " ahi %0,1\n" + "4:" + : "=&d" (r) : "d" (x) : "cc", "1" ); + return r+1; +} + +weak_alias (__ffs, ffs) +#undef ffsl +weak_alias (__ffs, ffsl) diff --git a/sysdeps/s390/fpu/bits/fenv.h b/sysdeps/s390/fpu/bits/fenv.h new file mode 100644 index 0000000000..81732b9972 --- /dev/null +++ b/sysdeps/s390/fpu/bits/fenv.h @@ -0,0 +1,90 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + + */ + +#ifndef _FENV_H +# error "Never use <bits/fenv.h> directly; include <fenv.h> instead." +#endif + +/* Define bits representing the exception. We use the bit positions + of the appropriate bits in the FPU control word. */ +enum + { + FE_INVALID = 0x80, +#define FE_INVALID FE_INVALID + FE_DIVBYZERO = 0x40, +#define FE_DIVBYZERO FE_DIVBYZERO + FE_OVERFLOW = 0x20, +#define FE_OVERFLOW FE_OVERFLOW + FE_UNDERFLOW = 0x10, +#define FE_UNDERFLOW FE_UNDERFLOW + FE_INEXACT = 0x08 +#define FE_INEXACT FE_INEXACT + }; +/* We dont use the y bit of the DXC in the floating point control register + * as glibc has no FE encoding for fe inexact incremented + * or fe inexact truncated. + * We currently use the flag bits in the fpc + * as these are sticky for feholdenv & feupdatenv as it is defined + * in the HP Manpages. + */ + + +#define FE_ALL_EXCEPT \ + (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID) + +enum + { + FE_TONEAREST = 0, +#define FE_TONEAREST FE_TONEAREST + FE_DOWNWARD = 0x3, +#define FE_DOWNWARD FE_DOWNWARD + FE_UPWARD = 0x2, +#define FE_UPWARD FE_UPWARD + FE_TOWARDZERO = 0x1 +#define FE_TOWARDZERO FE_TOWARDZERO + }; + +#define FPC_EXCEPTION_MASK_SHIFT 24 +#define FPC_FLAGS_SHIFT 16 +#define FPC_DXC_SHIFT 8 +#define FPC_NOT_FPU_EXCEPTION 0x300 + + +/* Type representing exception flags. */ +typedef unsigned int fexcept_t; /* size of fpc */ + + +/* Type representing floating-point environment. This function corresponds + to the layout of the block written by the `fstenv'. */ +typedef struct +{ + fexcept_t fpc; + void *ieee_instruction_pointer; + /* failing instruction for ieee exceptions */ +} fenv_t; + +/* If the default argument is used we use this value. */ +#define FE_DFL_ENV ((fenv_t *) -1) + +#ifdef __USE_GNU +/* Floating-point environment where none of the exceptions are masked. */ +#define FE_NOMASK_ENV ((fenv_t *) -2) +#endif diff --git a/sysdeps/s390/fpu/fclrexcpt.c b/sysdeps/s390/fpu/fclrexcpt.c new file mode 100644 index 0000000000..aa159fd282 --- /dev/null +++ b/sysdeps/s390/fpu/fclrexcpt.c @@ -0,0 +1,40 @@ +/* Clear given exceptions in current floating-point environment. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <fenv.h> +#include <fpu_control.h> + +int +feclearexcept (int excepts) +{ + fexcept_t temp; + + /* Mask out unsupported bits/exceptions. */ + excepts &= FE_ALL_EXCEPT; + + _FPU_GETCW(temp); + /* Clear the relevant bits. */ + temp &= ~((excepts<<FPC_DXC_SHIFT)|(excepts<<FPC_FLAGS_SHIFT)); + + /* Put the new data in effect. */ + _FPU_SETCW(temp); + + /* Success. */ + return 0; +} diff --git a/sysdeps/s390/fpu/fegetround.c b/sysdeps/s390/fpu/fegetround.c new file mode 100644 index 0000000000..3742588629 --- /dev/null +++ b/sysdeps/s390/fpu/fegetround.c @@ -0,0 +1,35 @@ +/* Return current rounding direction. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com) + + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <fenv.h> +#include <fpu_control.h> + +int +fegetround (void) +{ + fexcept_t cw; + + _FPU_GETCW(cw); + + return cw & FPC_RM_MASK; +} + + diff --git a/sysdeps/s390/fpu/fesetround.c b/sysdeps/s390/fpu/fesetround.c new file mode 100644 index 0000000000..ba8c1b0be3 --- /dev/null +++ b/sysdeps/s390/fpu/fesetround.c @@ -0,0 +1,37 @@ +/* Set current rounding direction. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com) + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <fenv.h> +#include <fpu_control.h> + +int +fesetround (int round) +{ + if ((round|FPC_RM_MASK) != FPC_RM_MASK) + { + /* ROUND is not a valid rounding mode. */ + return 1; + } + __asm__ volatile ("srnm 0(%0)" + : + : "a" (round)); + + return 0; +} diff --git a/sysdeps/s390/fpu/fgetexcptflg.c b/sysdeps/s390/fpu/fgetexcptflg.c new file mode 100644 index 0000000000..d4a49d6731 --- /dev/null +++ b/sysdeps/s390/fpu/fgetexcptflg.c @@ -0,0 +1,46 @@ +/* Store current representation for exceptions. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + + Contributed by: + Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) +*/ + +#include <fenv.h> +#include <fpu_control.h> + +int fegetexceptflag (fexcept_t *flagp, int excepts) +{ + fexcept_t temp,newexcepts; + + /* Get the current exceptions. */ + _FPU_GETCW(temp); + newexcepts=((excepts<<FPC_DXC_SHIFT)|(excepts<<FPC_FLAGS_SHIFT)); + *flagp = temp & newexcepts; + + /* Success. */ + return 0; +} + + + + + + + diff --git a/sysdeps/s390/fpu/fpu_control.h b/sysdeps/s390/fpu/fpu_control.h new file mode 100644 index 0000000000..7552cfa8ff --- /dev/null +++ b/sysdeps/s390/fpu/fpu_control.h @@ -0,0 +1,47 @@ +/* FPU control word definitions. Stub version. + Copyright (C) 1999 Free Software Foundation, Inc. + Contributed by + Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) and + Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _FPU_CONTROL_H +# define _FPU_CONTROL_H + +# include <features.h> + +/* These bits are reserved are not changed. */ +# define _FPU_RESERVED 0x070700FC + +/* The fdlibm code requires no interrupts for exceptions. Don't + change the rounding mode, it would break long double I/O! */ +#define _FPU_DEFAULT 0x00000000 /* Default value. */ + +/* Type of the control word. */ +typedef unsigned int fpu_control_t; + +/* Macros for accessing the hardware control word. */ +#define _FPU_GETCW(cw) __asm__ volatile ("efpc %0,0" : "=d" (cw)) +#define _FPU_SETCW(cw) __asm__ volatile ("sfpc %0,0" : : "d" (cw)) + +/* Default control word set at startup. */ +extern fpu_control_t __fpu_control; + +#endif /* _FPU_CONTROL_H */ + + + diff --git a/sysdeps/s390/gmp-mparam.h b/sysdeps/s390/gmp-mparam.h new file mode 100644 index 0000000000..8de5b8de14 --- /dev/null +++ b/sysdeps/s390/gmp-mparam.h @@ -0,0 +1,29 @@ +/* gmp-mparam.h -- Compiler/machine parameter header file. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU MP Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + +#define BITS_PER_MP_LIMB 32 +#define BYTES_PER_MP_LIMB 4 +#define BITS_PER_LONGINT 32 +#define BITS_PER_INT 32 +#define BITS_PER_SHORTINT 16 +#define BITS_PER_CHAR 8 + +#define IEEE_DOUBLE_BIG_ENDIAN 0 diff --git a/sysdeps/s390/ldbl2mpn.c b/sysdeps/s390/ldbl2mpn.c new file mode 100644 index 0000000000..631fe2eab4 --- /dev/null +++ b/sysdeps/s390/ldbl2mpn.c @@ -0,0 +1,101 @@ +/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include "gmp.h" +#include "gmp-impl.h" +#include "longlong.h" +#include "ieee754.h" +#include <float.h> +#include <stdlib.h> + +/* Convert a `long double' in IEEE854 standard double-precision format to a + multi-precision integer representing the significand scaled up by its + number of bits (64 for long double) and an integral power of two + (MPN frexpl). */ + +mp_size_t +__mpn_extract_long_double (mp_ptr res_ptr, mp_size_t size, + int *expt, int *is_neg, + long double value) +{ + union ieee854_long_double u; + u.d = value; + + *is_neg = u.ieee.negative; + *expt = (int) u.ieee.exponent - IEEE854_LONG_DOUBLE_BIAS; + +#if BITS_PER_MP_LIMB == 32 + res_ptr[0] = u.ieee.mantissa1; /* Low-order 32 bits of fraction. */ + res_ptr[1] = u.ieee.mantissa0; /* High-order 32 bits. */ + #define N 2 +#elif BITS_PER_MP_LIMB == 64 + /* Hopefully the compiler will combine the two bitfield extracts + and this composition into just the original quadword extract. */ + res_ptr[0] = ((unsigned long int) u.ieee.mantissa0 << 32) | u.ieee.mantissa1; + #define N 1 +#else + #error "mp_limb size " BITS_PER_MP_LIMB "not accounted for" +#endif + + if (u.ieee.exponent == 0) + { + /* A biased exponent of zero is a special case. + Either it is a zero or it is a denormal number. */ + if (res_ptr[0] == 0 && res_ptr[N - 1] == 0) /* Assumes N<=2. */ + /* It's zero. */ + *expt = 0; + else + { + /* It is a denormal number, meaning it has no implicit leading + one bit, and its exponent is in fact the format minimum. */ + int cnt; + + /* One problem with Intel's 80-bit format is that the explicit + leading one in the normalized representation has to be zero + for denormalized number. If it is one, the number is according + to Intel's specification an invalid number. We make the + representation unique by explicitly clearing this bit. */ + res_ptr[N - 1] &= ~(1L << ((LDBL_MANT_DIG - 1) % BITS_PER_MP_LIMB)); + + if (res_ptr[N - 1] != 0) + { + count_leading_zeros (cnt, res_ptr[N - 1]); + if (cnt != 0) + { +#if N == 2 + res_ptr[N - 1] = res_ptr[N - 1] << cnt + | (res_ptr[0] >> (BITS_PER_MP_LIMB - cnt)); + res_ptr[0] <<= cnt; +#else + res_ptr[N - 1] <<= cnt; +#endif + } + *expt = LDBL_MIN_EXP - 1 - cnt; + } + else + { + count_leading_zeros (cnt, res_ptr[0]); + res_ptr[N - 1] = res_ptr[0] << cnt; + res_ptr[0] = 0; + *expt = LDBL_MIN_EXP - 1 - BITS_PER_MP_LIMB - cnt; + } + } + } + + return N; +} diff --git a/sysdeps/s390/machine-gmon.h b/sysdeps/s390/machine-gmon.h new file mode 100644 index 0000000000..019baae46e --- /dev/null +++ b/sysdeps/s390/machine-gmon.h @@ -0,0 +1,36 @@ +/* s390-specific implementation of profiling support. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> + +/* We need a special version of the `mcount' function since for S/390 it + must not clobber any register. */ + +/* We must not pollute the global namespace. */ +#define mcount_internal __mcount_internal + +void mcount_internal (u_long frompc, u_long selfpc); + +#define _MCOUNT_DECL(frompc, selfpc) \ +void mcount_internal (u_long frompc, u_long selfpc) + + +/* Define MCOUNT as empty since we have the implementation in another + file. */ +#define MCOUNT diff --git a/sysdeps/s390/memchr.S b/sysdeps/s390/memchr.S new file mode 100644 index 0000000000..72b4682745 --- /dev/null +++ b/sysdeps/s390/memchr.S @@ -0,0 +1,40 @@ +/* Search a character in a block of memory. For IBM S390 + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* + * R2 = address to memory area + * R3 = character to find + * R4 = number of bytes to search + */ + +#include "sysdep.h" +#include "asm-syntax.h" + + .text +ENTRY(memchr) + lhi %r0,0xff + nr %r0,%r3 + lr %r1,%r2 + la %r2,0(%r4,%r1) +0: srst %r2,%r1 + jo 0b + brc 13,1f + slr %r2,%r2 +1: br %r14 +END(memchr) diff --git a/sysdeps/s390/memcpy.S b/sysdeps/s390/memcpy.S new file mode 100644 index 0000000000..94119ea0e1 --- /dev/null +++ b/sysdeps/s390/memcpy.S @@ -0,0 +1,41 @@ +/* Set a block of memory to some byte value. For IBM S390 + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* + * R2 = address to destination memory area + * R3 = address to source memory area + * R4 = number of bytes to copy + */ + +#include "sysdep.h" +#include "asm-syntax.h" + + .text +ENTRY(memcpy) + ltr %r5,%r4 + jz .L1 + lr %r4,%r3 # %r4/%r5 = source ptr/len + lr %r3,%r5 # %r2/%r3 = dest ptr/len + lr %r0,%r2 # save source address +.L0: mvcle %r2,%r4,0 # thats it, MVCLE is your friend + jo .L0 + lr %r2,%r0 # return value is source address +.L1: + br %r14 +END(memset) diff --git a/sysdeps/s390/memset.S b/sysdeps/s390/memset.S new file mode 100644 index 0000000000..e917fe031b --- /dev/null +++ b/sysdeps/s390/memset.S @@ -0,0 +1,43 @@ +/* Set a block of memory to some byte value. For IBM S390 + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* + * R2 = address to memory area + * R3 = byte to fill memory with + * R4 = number of bytes to fill + */ + +#include "sysdep.h" +#include "asm-syntax.h" + + .text +ENTRY(memset) + ltr %r4,%r4 + jz .L1 + lr %r0,%r2 # save source address + lr %r1,%r3 # move pad byte to R1 + lr %r3,%r4 + sr %r4,%r4 # no source for MVCLE, only a pad byte + sr %r5,%r5 +.L0: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend + jo .L0 + lr %r2,%r0 # return value is source address +.L1: + br %r14 +END(memset) diff --git a/sysdeps/s390/memusage.h b/sysdeps/s390/memusage.h new file mode 100644 index 0000000000..d34f42c44f --- /dev/null +++ b/sysdeps/s390/memusage.h @@ -0,0 +1,21 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#define GETSP() ({ register uintptr_t stack_ptr asm ("15"); stack_ptr; }) + +#include <sysdeps/generic/memusage.h> diff --git a/sysdeps/s390/mul_1.S b/sysdeps/s390/mul_1.S new file mode 100644 index 0000000000..1804114741 --- /dev/null +++ b/sysdeps/s390/mul_1.S @@ -0,0 +1,55 @@ +/* i80386 __mpn_mul_1 -- Multiply a limb vector with a limb and store + the result in a second limb vector. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation; either version 2 of the License, or (at your + option) any later version. + + The GNU MP Library is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + License for more details. + + You should have received a copy of the GNU Library General Public License + along with the GNU MP Library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. */ + +/* + INPUT PARAMETERS + res_ptr %r2 + s1_ptr %r3 + size %r4 + s2_limb %r5 +*/ + +#include <sysdep.h> +#include "asm-syntax.h" + + .text +ENTRY(__mpn_mul_1) + st %r6,24(%r15) + slr %r6,%r6 # cy_limb = 0 +.L0: icm %r1,15,0(%r3) # get s1_ptr[i] + mr %r0,%r5 # umul_ppmm(prod_high,prod_low,s1_ptr[j],s2_limb) + jnm .L1 + alr %r0,%r5 +.L1: ltr %r5,%r5 + jnm .L2 + al %r0,0(%r3) +.L2: alr %r1,%r6 # prod_low += cy_limb + lr %r6,%r0 # cy_limb = prod_high + brc 12,.L3 + ahi %r6,1 # + (prod_low < cy_limb) +.L3: st %r1,0(%r2) + la %r2,4(0,%r2) + la %r3,4(0,%r3) + brct %r4,.L0 + lr %r2,%r6 # return cy_limb + l %r6,24(%r15) +.Lexit: br %r14 +END(__mpn_mul_1) diff --git a/sysdeps/s390/s390-mcount.S b/sysdeps/s390/s390-mcount.S new file mode 100644 index 0000000000..e7c16b7052 --- /dev/null +++ b/sysdeps/s390/s390-mcount.S @@ -0,0 +1,84 @@ +/* S/390-specific implemetation of profiling support. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com) + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> + +/* + * How profiling works on S/390: + * On the start of each function _mcount is called with the address of a + * data word in %r1 (initialized to 0, used for counting). The compiler + * with the option -p generates code of the form: + * + * STM 6,15,24(15) + * BRAS 13,.LTN0_0 + * .LT0_0: + * .LC12: .long _mcount + * .LC13: .long .LP0 + * .data + * .align 4 + * .LP0: .long 0 + * .text + * # function profiler + * st 14,4(15) + * l 14,.LC12-.LT0_0(13) + * l 1,.LC13-.LT0_0(13) + * basr 14,14 + * l 14,4(15) + * + * The _mcount implementation now has to call __mcount_internal with the + * address of .LP0 as first parameter and the return address as second + * parameter. &.LP0 was loaded to %r1 and the return address is in %r14. + * _mcount may not modify any register. + */ + + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(_mcount) + ASM_TYPE_DIRECTIVE(C_SYMBOL_NAME(_mcount), @function) + .align ALIGNARG(4) +C_LABEL(_mcount) + /* Save the caller-clobbered registers. */ + ahi %r15,-128 + stm %r14,%r5,96(%r15) + l %r2,132(%r15) # callers address = first parameter + la %r2,0(%r2) # clear bit 0 + la %r3,0(%r14) # callees address = second parameter + +#ifdef PIC + bras %r14,0f + .long _GLOBAL_OFFSET_TABLE_-. +0: al %r14,0(%r14) + l %r14,__mcount_internal@GOT(%r14) +#else + bras %r14,0f + .long __mcount_internal +0: l %r14,0(%r14) +#endif + basr %r14,%r14 + + /* + * Pop the saved registers. Please note that `mcount' has no + * return value. + */ + lm %r14,%r5,96(%r15) + ahi %r15,128 + br %r14 + ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(_mcount)) + +#undef mcount +weak_alias(_mcount, mcount) diff --git a/sysdeps/s390/setjmp.S b/sysdeps/s390/setjmp.S new file mode 100644 index 0000000000..af3d3601f4 --- /dev/null +++ b/sysdeps/s390/setjmp.S @@ -0,0 +1,55 @@ +/* + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _ASM +#define _ASM +#endif + +#include <sysdep.h> +#include <bits/setjmp.h> + +/* Save the current program position in ENV and return 0. */ +/* R2 = pointer to jmp_buf, R3 = savemask */ + +/* Binary compatibility entry point. */ + +ENTRY(__setjmp) + sr %r3,%r3 /* set savemask to zero */ +END (__setjmp) + +ENTRY(__sigsetjmp) + stm %r6,%r15,0(%r2) /* store registers in jmp_buf */ +#ifdef PIC + /* We cannot use the PLT, because it requires that %r12 be set, but + we can't save and restore our caller's value. Instead, we do an + indirect jump through the GOT. */ + basr %r1,0 +.L0: al %r1,.L1 - .L0(0,%r1) /* get address of global offset table */ + /* get address of __sigjmp_save from got */ + l %r1,__sigjmp_save@GOT12(0,%r1) + br %r1 +.L1: .long _GLOBAL_OFFSET_TABLE_ - .L0 +#else + basr %r1,0 +.L0: l %r1,.L1-.L0(0,%r1) /* load address of __sigjmp_save */ + br %r1 /* tail-call __sigjmp_save */ +.L1: .long __sigjmp_save +#endif +END (__sigsetjmp) diff --git a/sysdeps/s390/stackinfo.h b/sysdeps/s390/stackinfo.h new file mode 100644 index 0000000000..f1bd9bd5e7 --- /dev/null +++ b/sysdeps/s390/stackinfo.h @@ -0,0 +1,28 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* This file contains a bit of information about the stack allocation + of the processor. */ + +#ifndef _STACKINFO_H +#define _STACKINFO_H 1 + +/* On s390 the stack grows down. */ +#define _STACK_GROWS_DOWN 1 + +#endif /* stackinfo.h */ diff --git a/sysdeps/s390/strcpy.S b/sysdeps/s390/strcpy.S new file mode 100644 index 0000000000..fedefd8f31 --- /dev/null +++ b/sysdeps/s390/strcpy.S @@ -0,0 +1,36 @@ +/* strcpy - copy a string from source to destination. For IBM S390 + This file is part of the GNU C Library. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + The GNU C Library is free software ; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation ; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY ; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* + * R2 = address of destination + * R3 = address of source + */ + +#include "sysdep.h" +#include "asm-syntax.h" + + .text +ENTRY(strcpy) + slr %r0,%r0 + lr %r1,%r2 +0: mvst %r1,%r3 + jo 0b + br %r14 +END(strcpy) diff --git a/sysdeps/s390/strncpy.S b/sysdeps/s390/strncpy.S new file mode 100644 index 0000000000..823eeb4f5e --- /dev/null +++ b/sysdeps/s390/strncpy.S @@ -0,0 +1,79 @@ +/* strncpy - copy at most n characters from a string from source to + destination. For IBM S390 + This file is part of the GNU C Library. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + The GNU C Library is free software ; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation ; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY ; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* + * R2 = address of destination (dst) + * R3 = address of source (src) + * R4 = max of bytes to copy + */ + +#include "sysdep.h" +#include "asm-syntax.h" + +ENTRY(strncpy) + .text + st %r2,24(%r15) # save dst pointer + slr %r2,%r3 # %r3 points to src, %r2+%r3 to dst + lhi %r1,3 + nr %r1,%r4 # last 2 bits of # bytes + srl %r4,2 + ltr %r4,%r4 # less than 4 bytes to copy ? + jz .L1 + bras %r5,.L0 # enter loop & load address of a 0 + .long 0 +.L0: icm %r0,8,0(%r3) # first byte + jz .L3 + icm %r0,4,1(%r3) # second byte + jz .L4 + icm %r0,2,2(%r3) # third byte + jz .L5 + icm %r0,1,3(%r3) # fourth byte + jz .L6 + st %r0,0(%r2,%r3) # store all four to dest. + la %r3,4(%r3) + brct %r4,.L0 +.L1: ltr %r1,%r1 + jz .Lexit +.L2: icm %r0,1,0(%r3) + stc %r0,0(%r2,%r3) + la %r3,1(%r3) + jz .L7 + brct %r1,.L2 + j .Lexit +.L3: icm %r0,4,0(%r5) +.L4: icm %r0,2,0(%r5) +.L5: icm %r0,1,0(%r5) +.L6: st %r0,0(%r2,%r3) + la %r3,4(%r3) + ahi %r4,-1 + j .L8 +.L7: ahi %r1,-1 +.L8: sll %r4,2 + alr %r4,%r1 + alr %r2,%r3 # start of dst area to be zeroed + lr %r3,%r4 + slr %r4,%r4 + slr %r5,%r5 +.L9: mvcle %r2,%r4,0 # pad dst with zeroes + jo .L9 +.Lexit: l %r2,24(%r15) # return dst pointer + br %r14 +END(strncpy) diff --git a/sysdeps/s390/sub_n.S b/sysdeps/s390/sub_n.S new file mode 100644 index 0000000000..5eee0fb13d --- /dev/null +++ b/sysdeps/s390/sub_n.S @@ -0,0 +1,62 @@ +/* i80386 __mpn_sub_n -- Add two limb vectors of the same length > 0 and store + sum in a third limb vector. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU MP Library. + + The GNU MP Library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation; either version 2 of the License, or (at your + option) any later version. + + The GNU MP Library is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + License for more details. + + You should have received a copy of the GNU Library General Public License + along with the GNU MP Library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA. */ + +/* + INPUT PARAMETERS + res_ptr %r2 + s1_ptr %r3 + s2_ptr %r4 + size %r5 +*/ + +#include "sysdep.h" +#include "asm-syntax.h" + +ENTRY(__mpn_sub_n) + st %r6,24(%r15) # save register 6 + sr %r1,%r1 + lhi %r0,1 # cannot use ahi to add carry, use slr +.L0: l %r6,0(%r1,%r3) # .L0 -> no carry from last sub + sl %r6,0(%r1,%r4) + st %r6,0(%r1,%r2) + la %r1,4(0,%r1) + brc 4,.L3 +.L1: brct %r5,.L0 + slr %r2,%r2 # no last carry to return + j .Lexit +.L2: l %r6,0(%r1,%r3) # .L2 -> carry from last sub + sl %r6,0(%r1,%r4) + brc 4,.L4 + slr %r6,%r0 # no carry yet, add carry from last sub + st %r6,0(%r1,%r2) + la %r1,4(0,%r1) + brc 11,.L1 # new carry ? +.L3: brct %r5,.L2 + lr %r2,%r0 # return last carry + j .Lexit +.L4: slr %r6,%r0 # already a carry, add carry from last sub + st %r6,0(%r1,%r2) + la %r1,4(0,%r1) + brct %r5,.L2 + lr %r2,%r0 # return last carry +.Lexit: l %r6,24(%r15) # restore register 6 + br %r14 +END(__mpn_sub_n) diff --git a/sysdeps/s390/sys/ucontext.h b/sysdeps/s390/sys/ucontext.h new file mode 100644 index 0000000000..c00bb5c786 --- /dev/null +++ b/sysdeps/s390/sys/ucontext.h @@ -0,0 +1,95 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* System V/s390 ABI compliant context switching support. */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> +#include <signal.h> + +/* Type for general register. */ +typedef int greg_t; + +/* Number of general registers. */ +#define NGREG 16 + +/* Number of each register is the `greg_t gregs[NREG]' array. */ +enum +{ + R_GPR0 = 0, +#define R_GPR0 R_GPR0 + R_GPR1 = 1, +#define R_GPR1 R_GPR1 + R_GPR2 = 2, +#define R_GPR2 R_GPR2 + R_GPR3 = 3, +#define R_GPR3 R_GPR3 + R_GPR4 = 4, +#define R_GPR4 R_GPR4 + R_GPR5 = 5, +#define R_GPR5 R_GPR5 + R_GPR6 = 6, +#define R_GPR6 R_GPR6 + R_GPR7 = 7, +#define R_GPR7 R_GPR7 + R_GPR8 = 8, +#define R_GPR8 R_GPR8 + R_GPR9 = 9, +#define R_GPR9 R_GPR9 + R_GPRA = 10, +#define R_GPRA R_GPRA + R_GPRB = 11, +#define R_GPRB R_GPRB + R_GPRC = 12, +#define R_GPRC R_GPRC + R_GPRD = 13, +#define R_GPRD R_GPRD + R_GPRE = 14, +#define R_GPRE R_GPRE + R_GPRF = 15 +#define R_GPRF R_GPRF +}; + +/* Structure to describe FPU registers. */ +typedef long long fpreg_t; + +/* Context to describe whole processor state. */ +typedef struct +{ + int version; + greg_t gregs[NGREG]; + fpreg_t fpregs[16]; +} mcontext_t; + +#define MCONTEXT_VERSION 1 + +/* Userlevel context. */ +typedef struct ucontext +{ + unsigned long int uc_flags; + struct ucontext *uc_links; + __sigset_t uc_sigmask; + stack_t uc_stack; + mcontext_t uc_mcontext; + long int uc_filler[170]; +} ucontext_t; + +#endif /* sys/ucontext.h */ diff --git a/sysdeps/s390/sysdep.h b/sysdeps/s390/sysdep.h new file mode 100644 index 0000000000..6915379de4 --- /dev/null +++ b/sysdeps/s390/sysdep.h @@ -0,0 +1,121 @@ +/* Assembler macros for s390. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdeps/generic/sysdep.h> + +#ifdef __ASSEMBLER__ + +/* Syntactic details of assembler. */ + +#ifdef HAVE_ELF + +/* ELF uses byte-counts for .align, most others use log2 of count of bytes. */ +#define ALIGNARG(log2) 1<<log2 +/* For ELF we need the `.type' directive to make shared libs work right. */ +#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg; +#define ASM_SIZE_DIRECTIVE(name) .size name,.-name; + +/* In ELF C symbols are asm symbols. */ +#undef NO_UNDERSCORES +#define NO_UNDERSCORES + +#else + +#define ALIGNARG(log2) log2 +#define ASM_TYPE_DIRECTIVE(name,type) /* Nothing is specified. */ +#define ASM_SIZE_DIRECTIVE(name) /* Nothing is specified. */ + +#endif + + +/* Define an entry point visible from C. */ +#define ENTRY(name) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \ + ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \ + .align ALIGNARG(2); \ + C_LABEL(name) \ + CALL_MCOUNT + +#undef END +#define END(name) \ + ASM_SIZE_DIRECTIVE(name) \ + +/* If compiled for profiling, call `mcount' at the start of each function. */ +#ifdef PROF +#ifdef PIC +#define CALL_MCOUNT \ + lr 0,14 ; bras 14,.+12 ; .long _GLOBAL_OFFSET_TABLE_ - . ; .long 0f-. ; \ + lr 1,14 ; al 1,4(14) ; al 14,0(14) ; l 14,_mcount@GOT(14) ; \ + basr 14,14 ; lr 14,0 ; .data ; .align 4 ; 0: .long 0 ; .text ; +#else +#define CALL_MCOUNT \ + lr 0,14 ; bras 14,.+12 ; .long _mcount ; .long 0f ; \ + l 1,4(14) ; l 14,0(14) ; basr 14,14 ; lr 14,0 ; \ + .data ; .align 4 ; 0: .long 0 ; .text ; +#endif +#else +#define CALL_MCOUNT /* Do nothing. */ +#endif + +#ifdef NO_UNDERSCORES +/* Since C identifiers are not normally prefixed with an underscore + on this system, the asm identifier `syscall_error' intrudes on the + C name space. Make sure we use an innocuous name. */ +#define syscall_error __syscall_error +#define mcount _mcount +#endif + +#define PSEUDO(name, syscall_name, args) \ +lose: SYSCALL_PIC_SETUP \ + JUMPTARGET(syscall_error) \ + .globl syscall_error; \ + ENTRY (name) \ + DO_CALL (syscall_name, args); \ + jm lose + +#undef PSEUDO_END +#define PSEUDO_END(name) \ + END (name) + +#ifdef PIC +#define JUMPTARGET(name) \ + basr %r1,0 \ +0: al %r1,1f-0b(0,%r1) \ + br %r1 \ +1: .long name##@PLT - 0b +#define SYSCALL_PIC_SETUP \ + bras %r12,1f \ +0: .long _GLOBAL_OFFSET_TABLE_-0b \ +1: al %r12,0(%r12) +#else +#define JUMPTARGET(name) \ + basr %r1,0 \ +0: al %r1,1f-0b(0,%r1) \ + br %r1 \ +1: .long name - 0b +#define SYSCALL_PIC_SETUP /* Nothing. */ +#endif + +/* Local label name for asm code. */ +#ifndef L +#define L(name) name +#endif + +#endif /* __ASSEMBLER__ */ diff --git a/sysdeps/unix/sysv/linux/s390/Dist b/sysdeps/unix/sysv/linux/s390/Dist new file mode 100644 index 0000000000..eaf8731d34 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/Dist @@ -0,0 +1,9 @@ +clone.S +setresuid.c +setresgid.c +setfsuid.c +setfsgid.c +sys/elf.h +sys/perm.h +sys/procfs.h +sys/user.h diff --git a/sysdeps/unix/sysv/linux/s390/Makefile b/sysdeps/unix/sysv/linux/s390/Makefile new file mode 100644 index 0000000000..7ca98f0ebe --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/Makefile @@ -0,0 +1,4 @@ +ifeq ($(subdir),misc) +sysdep_routines += setfsgid setfsuid setresgid setresuid +sysdep_headers += sys/elf.h sys/reg.h +endif diff --git a/sysdeps/unix/sysv/linux/s390/bits/fcntl.h b/sysdeps/unix/sysv/linux/s390/bits/fcntl.h new file mode 100644 index 0000000000..a54784a977 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/bits/fcntl.h @@ -0,0 +1,151 @@ +/* O_*, F_*, FD_* bit values for Linux. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _FCNTL_H +# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." +#endif + + +#include <sys/types.h> + +/* open/fcntl - O_SYNC is only implemented on blocks devices and on files + located on an ext2 file system */ +#define O_ACCMODE 0003 +#define O_RDONLY 00 +#define O_WRONLY 01 +#define O_RDWR 02 +#define O_CREAT 0100 /* not fcntl */ +#define O_EXCL 0200 /* not fcntl */ +#define O_NOCTTY 0400 /* not fcntl */ +#define O_TRUNC 01000 /* not fcntl */ +#define O_APPEND 02000 +#define O_NONBLOCK 04000 +#define O_NDELAY O_NONBLOCK +#define O_SYNC 010000 +#define O_FSYNC O_SYNC +#define O_ASYNC 020000 + +#ifdef __USE_GNU +# define O_DIRECT 040000 /* Direct disk access. */ +# define O_DIRECTORY 0200000 /* Must be a directory. */ +# define O_NOFOLLOW 0400000 /* Do not follow links. */ +#endif + +/* For now Linux has synchronisity options for data and read operations. + We define the symbols here but let them do the same as O_SYNC since + this is a superset. */ +#if defined __USE_POSIX199309 || defined __USE_UNIX98 +# define O_DSYNC O_SYNC /* Synchronize data. */ +# define O_RSYNC O_SYNC /* Synchronize read operations. */ +#endif + +#ifdef __USE_LARGEFILE64 +# define O_LARGEFILE 0100000 +#endif + +/* Values for the second argument to `fcntl'. */ +#define F_DUPFD 0 /* Duplicate file descriptor. */ +#define F_GETFD 1 /* Get file descriptor flags. */ +#define F_SETFD 2 /* Set file descriptor flags. */ +#define F_GETFL 3 /* Get file status flags. */ +#define F_SETFL 4 /* Set file status flags. */ +#define F_GETLK 5 /* Get record locking info. */ +#define F_SETLK 6 /* Set record locking info (non-blocking). */ +#define F_SETLKW 7 /* Set record locking info (blocking). */ + +/* XXX missing */ +#define F_GETLK64 5 /* Get record locking info. */ +#define F_SETLK64 6 /* Set record locking info (non-blocking). */ +#define F_SETLKW64 7 /* Set record locking info (blocking). */ + +#if defined __USE_BSD || defined __USE_XOPEN2K +# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */ +# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */ +#endif + +#ifdef __USE_GNU +# define F_SETSIG 10 /* Set number of signal to be sent. */ +# define F_GETSIG 11 /* Get number of signal to be sent. */ +#endif + +/* For F_[GET|SET]FL. */ +#define FD_CLOEXEC 1 /* actually anything with low bit set goes */ + +/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */ +#define F_RDLCK 0 /* Read lock. */ +#define F_WRLCK 1 /* Write lock. */ +#define F_UNLCK 2 /* Remove lock. */ + +/* for old implementation of bsd flock () */ +#define F_EXLCK 4 /* or 3 */ +#define F_SHLCK 8 /* or 4 */ + +#ifdef __USE_BSD +/* operations for bsd flock(), also used by the kernel implementation */ +# define LOCK_SH 1 /* shared lock */ +# define LOCK_EX 2 /* exclusive lock */ +# define LOCK_NB 4 /* or'd with one of the above to prevent + blocking */ +# define LOCK_UN 8 /* remove lock */ +#endif + +struct flock + { + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ +#ifndef __USE_FILE_OFFSET64 + __off_t l_start; /* Offset where the lock begins. */ + __off_t l_len; /* Size of the locked area; zero means until EOF. */ +#else + __off64_t l_start; /* Offset where the lock begins. */ + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ +#endif + __pid_t l_pid; /* Process holding the lock. */ + }; + +#ifdef __USE_LARGEFILE64 +struct flock64 + { + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ + __off64_t l_start; /* Offset where the lock begins. */ + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ + __pid_t l_pid; /* Process holding the lock. */ + }; +#endif + +/* Define some more compatibility macros to be backward compatible with + BSD systems which did not managed to hide these kernel macros. */ +#ifdef __USE_BSD +# define FAPPEND O_APPEND +# define FFSYNC O_FSYNC +# define FASYNC O_ASYNC +# define FNONBLOCK O_NONBLOCK +# define FNDELAY O_NDELAY +#endif /* Use BSD. */ + +/* Advise to `posix_fadvise'. */ +#ifdef __USE_XOPEN2K +# define POSIX_FADV_NORMAL 0 /* No further special treatment. */ +# define POSIX_FADV_RANDOM 1 /* Expect random page references. */ +# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */ +# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ +# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ +#endif diff --git a/sysdeps/unix/sysv/linux/s390/bits/mman.h b/sysdeps/unix/sysv/linux/s390/bits/mman.h new file mode 100644 index 0000000000..70069e9f06 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/bits/mman.h @@ -0,0 +1,93 @@ +/* Definitions for POSIX memory map interface. Linux/s390 version. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SYS_MMAN_H +# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead." +#endif + +/* The following definitions basically come from the kernel headers. + But the kernel header is not namespace clean. */ + + +/* Protections are chosen from these bits, OR'd together. The + implementation does not necessarily support PROT_EXEC or PROT_WRITE + without PROT_READ. The only guarantees are that no writing will be + allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */ + +#define PROT_READ 0x1 /* Page can be read. */ +#define PROT_WRITE 0x2 /* Page can be written. */ +#define PROT_EXEC 0x4 /* Page can be executed. */ +#define PROT_NONE 0x0 /* Page can not be accessed. */ + +/* Sharing types (must choose one and only one of these). */ +#define MAP_SHARED 0x01 /* Share changes. */ +#define MAP_PRIVATE 0x02 /* Changes are private. */ +#ifdef __USE_MISC +# define MAP_TYPE 0x0f /* Mask for type of mapping. */ +#endif + +/* Other flags. */ +#define MAP_FIXED 0x10 /* Interpret addr exactly. */ +#ifdef __USE_MISC +# define MAP_FILE 0 +# define MAP_ANONYMOUS 0x20 /* Don't use a file. */ +# define MAP_ANON MAP_ANONYMOUS +#endif + +/* These are Linux-specific. */ +#ifdef __USE_MISC +# define MAP_GROWSDOWN 0x0100 /* Stack-like segment. */ +# define MAP_DENYWRITE 0x0800 /* ETXTBSY */ +# define MAP_EXECUTABLE 0x1000 /* Mark it as an executable. */ +# define MAP_LOCKED 0x2000 /* Lock the mapping. */ +# define MAP_NORESERVE 0x4000 /* Don't check for reservations. */ +#endif + +/* Flags to `msync'. */ +#define MS_ASYNC 1 /* Sync memory asynchronously. */ +#define MS_SYNC 4 /* Synchronous memory sync. */ +#define MS_INVALIDATE 2 /* Invalidate the caches. */ + +/* Flags for `mlockall'. */ +#define MCL_CURRENT 1 /* Lock all currently mapped pages. */ +#define MCL_FUTURE 2 /* Lock all additions to address + space. */ + +/* Flags for `mremap'. */ +#ifdef __USE_GNU +# define MREMAP_MAYMOVE 1 +#endif + +/* Advice to `madvise'. */ +#ifdef __USE_BSD +# define MADV_NORMAL 0 /* No further special treatment. */ +# define MADV_RANDOM 1 /* Expect random page references. */ +# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define MADV_WILLNEED 3 /* Will need these pages. */ +# define MADV_DONTNEED 4 /* Don't need these pages. */ +#endif + +/* The POSIX people had to invent similar names for the same things. */ +#ifdef __USE_XOPEN2K +# define POSIX_MADV_NORMAL 0 /* No further special treatment. */ +# define POSIX_MADV_RANDOM 1 /* Expect random page references. */ +# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */ +# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */ +#endif diff --git a/sysdeps/unix/sysv/linux/s390/bits/resource.h b/sysdeps/unix/sysv/linux/s390/bits/resource.h new file mode 100644 index 0000000000..8dd3972a4b --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/bits/resource.h @@ -0,0 +1,205 @@ +/* Bit values & structures for resource limits. Linux version. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SYS_RESOURCE_H +# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead." +#endif + +#include <bits/types.h> + +/* Transmute defines to enumerations. The macro re-definitions are + necessary because some programs want to test for operating system + features with #ifdef RUSAGE_SELF. In ISO C the reflexive + definition is a no-op. */ + +/* Kinds of resource limit. */ +enum __rlimit_resource +{ + /* Per-process CPU limit, in seconds. */ + RLIMIT_CPU = 0, +#define RLIMIT_CPU RLIMIT_CPU + + /* Largest file that can be created, in bytes. */ + RLIMIT_FSIZE = 1, +#define RLIMIT_FSIZE RLIMIT_FSIZE + + /* Maximum size of data segment, in bytes. */ + RLIMIT_DATA = 2, +#define RLIMIT_DATA RLIMIT_DATA + + /* Maximum size of stack segment, in bytes. */ + RLIMIT_STACK = 3, +#define RLIMIT_STACK RLIMIT_STACK + + /* Largest core file that can be created, in bytes. */ + RLIMIT_CORE = 4, +#define RLIMIT_CORE RLIMIT_CORE + + /* Largest resident set size, in bytes. + This affects swapping; processes that are exceeding their + resident set size will be more likely to have physical memory + taken from them. */ + RLIMIT_RSS = 5, +#define RLIMIT_RSS RLIMIT_RSS + + /* Number of open files. */ + RLIMIT_NOFILE = 7, + RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same. */ +#define RLIMIT_NOFILE RLIMIT_NOFILE +#define RLIMIT_OFILE RLIMIT_OFILE + + /* Address space limit. */ + RLIMIT_AS = 9, +#define RLIMIT_AS RLIMIT_AS + + /* Number of processes. */ + RLIMIT_NPROC = 6, +#define RLIMIT_NPROC RLIMIT_NPROC + + /* Locked-in-memory address space. */ + RLIMIT_MEMLOCK = 8, +#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK + + RLIMIT_NLIMITS = 10, + RLIM_NLIMITS = RLIMIT_NLIMITS +#define RLIMIT_NLIMITS RLIMIT_NLIMITS +#define RLIM_NLIMITS RLIM_NLIMITS +}; + +/* Value to indicate that there is no limit. */ +#ifndef __USE_FILE_OFFSET64 +# define RLIM_INFINITY ((unsigned long int) (~0UL)) +#else +# define RLIM_INFINITY 0xffffffffffffffffuLL +#endif + +#ifdef __USE_LARGEFILE64 +# define RLIM64_INFINITY 0xffffffffffffffffuLL +#endif + +/* We can represent all limits. */ +#define RLIM_SAVED_MAX RLIM_INFINITY +#define RLIM_SAVED_CUR RLIM_INFINITY + + +/* Type for resource quantity measurement. */ +#ifndef __USE_FILE_OFFSET64 +typedef __rlim_t rlim_t; +#else +typedef __rlim64_t rlim_t; +#endif +#ifdef __USE_LARGEFILE64 +typedef __rlim64_t rlim64_t; +#endif + +struct rlimit + { + /* The current (soft) limit. */ + rlim_t rlim_cur; + /* The hard limit. */ + rlim_t rlim_max; + }; + +#ifdef __USE_LARGEFILE64 +struct rlimit64 + { + /* The current (soft) limit. */ + rlim64_t rlim_cur; + /* The hard limit. */ + rlim64_t rlim_max; + }; +#endif + +/* Whose usage statistics do you want? */ +enum __rusage_who +{ + /* The calling process. */ + RUSAGE_SELF = 0, +#define RUSAGE_SELF RUSAGE_SELF + + /* All of its terminated child processes. */ + RUSAGE_CHILDREN = -1, +#define RUSAGE_CHILDREN RUSAGE_CHILDREN + + /* Both. */ + RUSAGE_BOTH = -2 +#define RUSAGE_BOTH RUSAGE_BOTH +}; + +#define __need_timeval +#include <bits/time.h> /* For `struct timeval'. */ + +/* Structure which says how much of each resource has been used. */ +struct rusage + { + /* Total amount of user time used. */ + struct timeval ru_utime; + /* Total amount of system time used. */ + struct timeval ru_stime; + /* Maximum resident set size (in kilobytes). */ + long int ru_maxrss; + /* Amount of sharing of text segment memory + with other processes (kilobyte-seconds). */ + long int ru_ixrss; + /* Amount of data segment memory used (kilobyte-seconds). */ + long int ru_idrss; + /* Amount of stack memory used (kilobyte-seconds). */ + long int ru_isrss; + /* Number of soft page faults (i.e. those serviced by reclaiming + a page from the list of pages awaiting reallocation. */ + long int ru_minflt; + /* Number of hard page faults (i.e. those that required I/O). */ + long int ru_majflt; + /* Number of times a process was swapped out of physical memory. */ + long int ru_nswap; + /* Number of input operations via the file system. Note: This + and `ru_oublock' do not include operations with the cache. */ + long int ru_inblock; + /* Number of output operations via the file system. */ + long int ru_oublock; + /* Number of IPC messages sent. */ + long int ru_msgsnd; + /* Number of IPC messages received. */ + long int ru_msgrcv; + /* Number of signals delivered. */ + long int ru_nsignals; + /* Number of voluntary context switches, i.e. because the process + gave up the process before it had to (usually to wait for some + resource to be available). */ + long int ru_nvcsw; + /* Number of involuntary context switches, i.e. a higher priority process + became runnable or the current process used up its time slice. */ + long int ru_nivcsw; + }; + +/* Priority limits. */ +#define PRIO_MIN -20 /* Minimum priority a process can have. */ +#define PRIO_MAX 20 /* Maximum priority a process can have. */ + +/* The type of the WHICH argument to `getpriority' and `setpriority', + indicating what flavor of entity the WHO argument specifies. */ +enum __priority_which +{ + PRIO_PROCESS = 0, /* WHO is a process ID. */ +#define PRIO_PROCESS PRIO_PROCESS + PRIO_PGRP = 1, /* WHO is a process group ID. */ +#define PRIO_PGRP PRIO_PGRP + PRIO_USER = 2 /* WHO is a user ID. */ +#define PRIO_USER PRIO_USER +}; diff --git a/sysdeps/unix/sysv/linux/s390/bits/time.h b/sysdeps/unix/sysv/linux/s390/bits/time.h new file mode 100644 index 0000000000..dd1b0512b2 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/bits/time.h @@ -0,0 +1,79 @@ +/* System-dependent timing definitions. Linux version. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* + * Never include this file directly; use <time.h> instead. + */ + +#ifndef __need_timeval +# ifndef _BITS_TIME_H +# define _BITS_TIME_H 1 + +/* ISO/IEC 9899:1990 7.12.1: <time.h> + The macro `CLOCKS_PER_SEC' is the number per second of the value + returned by the `clock' function. */ +/* CAE XSH, Issue 4, Version 2: <time.h> + The value of CLOCKS_PER_SEC is required to be 1 million on all + XSI-conformant systems. */ +# define CLOCKS_PER_SEC 1000000 + +# ifndef __STRICT_ANSI__ +/* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK + presents the real value for clock ticks per second for the system. */ +# define CLK_TCK 100 +# endif + +/* Clock ID used in clock and timer functions. */ +typedef int __clockid_t; + +/* Timer ID returned by `timer_create'. */ +typedef int __timer_t; + +# ifdef __USE_POSIX199309 +/* Identifier for system-wide realtime clock. */ +# define CLOCK_REALTIME 0 +/* Monotonic clock. */ +# define CLOCK_MONOTONIC 1 +/* High-resolution timer from the CPU. */ +# define CLOCK_PROCESS_CPUTIME_ID 2 +/* Thread-specific CPU-time clock. */ +# define CLOCK_THREAD_CPUTIME_ID 3 + +/* Flag to indicate time is absolute. */ +# define TIMER_ABSTIME 1 +# endif + +# endif /* bits/time.h */ +#endif + +#ifdef __need_timeval +# undef __need_timeval +# ifndef _STRUCT_TIMEVAL +# define _STRUCT_TIMEVAL 1 +# include <bits/types.h> + +/* A time value that is accurate to the nearest + microsecond but also has a range of years. */ +struct timeval + { + __time_t tv_sec; /* Seconds. */ + __suseconds_t tv_usec; /* Microseconds. */ + }; +# endif /* struct timeval */ +#endif /* need timeval */ diff --git a/sysdeps/unix/sysv/linux/s390/brk.c b/sysdeps/unix/sysv/linux/s390/brk.c new file mode 100644 index 0000000000..fe22f382ef --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/brk.c @@ -0,0 +1,57 @@ +/* + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <unistd.h> +#include <sysdep.h> + +void *__curbrk = 0; + +/* Old braindamage in GCC's crtstuff.c requires this symbol in an attempt + to work around different old braindamage in the old Linux/x86 ELF + dynamic linker. Sigh. */ +weak_alias (__curbrk, ___brk_addr) + +int +__brk (void *addr) +{ + void *newbrk; + + { + register long r0 asm ("2"); + register void *__addr asm("2") = addr; + + asm ("svc %b1\n\t" /* call sys_brk */ + : "=d" (r0) + : "I" (SYS_ify(brk)), "r" (__addr) + : _svc_clobber ); + newbrk = (void *) r0; + } + __curbrk = newbrk; + + if (newbrk < addr) + { + __set_errno (ENOMEM); + return -1; + } + + return 0; +} +weak_alias (__brk, brk) diff --git a/sysdeps/unix/sysv/linux/s390/clone.S b/sysdeps/unix/sysv/linux/s390/clone.S new file mode 100644 index 0000000000..bde800d3b2 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/clone.S @@ -0,0 +1,66 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* clone is even more special than fork as it mucks with stacks + and invokes a function in the right context after its all over. */ + +#include <sysdep.h> +#define _ERRNO_H 1 +#include <bits/errno.h> + +/*int __clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg);*/ +/* sys_clone(void *child_stack, unsigned long flags) */ + + .text +ENTRY(__clone) + /* Sanity check arguments & move registers */ + ltr %r1,%r2 /* no NULL function pointers */ + lhi %r2,-EINVAL + jz SYSCALL_ERROR_LABEL + ltr %r3,%r3 /* no NULL stack pointers */ + jz SYSCALL_ERROR_LABEL + /* move child_stack and flags, then call SVC */ + lr %r2,%r3 + lr %r3,%r4 + svc SYS_ify(clone) + ltr %r2,%r2 /* check return code */ + jm SYSCALL_ERROR_LABEL + jz thread_start + br %r14 + +thread_start: + /* fn is in gpr 1, arg in gpr 5 */ + lr %r2,%r5 /* set first parameter to void *arg */ + sr %r11,%r11 /* terminate the stack frame */ + ahi %r15,-96 /* make room on the stack for the save area */ + basr %r14,%r1 /* jump to fn */ +#ifdef PIC + basr %r12,0 +.L0: lr %r1,%r12 + al %r12,.L1-.L0(%r12) + al %r1,.L2-.L0(%r1) + br %r1 /* branch to _exit -> thread termination */ +.L1: .long _GLOBAL_OFFSET_TABLE_ - .L0 +.L2: .long _exit@PLT - .L0 +#else + basr %r1,0 +.L0: al %r1,.L1-.L0(0,%r1) + br %r1 /* branch to _exit -> thread termination */ +.L1: .long _exit - .L0 +#endif +PSEUDO_END (__clone) diff --git a/sysdeps/unix/sysv/linux/s390/fchown.c b/sysdeps/unix/sysv/linux/s390/fchown.c new file mode 100644 index 0000000000..3a69ecc9e7 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/fchown.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/fchown.c> diff --git a/sysdeps/unix/sysv/linux/s390/getegid.c b/sysdeps/unix/sysv/linux/s390/getegid.c new file mode 100644 index 0000000000..37b4b4a530 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/getegid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/getegid.c> diff --git a/sysdeps/unix/sysv/linux/s390/geteuid.c b/sysdeps/unix/sysv/linux/s390/geteuid.c new file mode 100644 index 0000000000..ebcb555b5e --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/geteuid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/geteuid.c> diff --git a/sysdeps/unix/sysv/linux/s390/getgid.c b/sysdeps/unix/sysv/linux/s390/getgid.c new file mode 100644 index 0000000000..0a4d6061f0 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/getgid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/getgid.c> diff --git a/sysdeps/unix/sysv/linux/s390/getgroups.c b/sysdeps/unix/sysv/linux/s390/getgroups.c new file mode 100644 index 0000000000..20a7166103 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/getgroups.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/getgroups.c> diff --git a/sysdeps/unix/sysv/linux/s390/getmsg.c b/sysdeps/unix/sysv/linux/s390/getmsg.c new file mode 100644 index 0000000000..3a1fa08525 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/getmsg.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/getmsg.c> diff --git a/sysdeps/unix/sysv/linux/s390/getpmsg.c b/sysdeps/unix/sysv/linux/s390/getpmsg.c new file mode 100644 index 0000000000..bb65f81bf9 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/getpmsg.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/getpmsg.c> diff --git a/sysdeps/unix/sysv/linux/s390/getresgid.c b/sysdeps/unix/sysv/linux/s390/getresgid.c new file mode 100644 index 0000000000..b703a414cc --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/getresgid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/getresgid.c> diff --git a/sysdeps/unix/sysv/linux/s390/getresuid.c b/sysdeps/unix/sysv/linux/s390/getresuid.c new file mode 100644 index 0000000000..0b14cefe34 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/getresuid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/getresuid.c> diff --git a/sysdeps/unix/sysv/linux/s390/getuid.c b/sysdeps/unix/sysv/linux/s390/getuid.c new file mode 100644 index 0000000000..d682c79a49 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/getuid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/getuid.c> diff --git a/sysdeps/unix/sysv/linux/s390/mmap.S b/sysdeps/unix/sysv/linux/s390/mmap.S new file mode 100644 index 0000000000..0ba58ccf82 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/mmap.S @@ -0,0 +1,60 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> + + .text + +ENTRY(__mmap) + /* Save registers and setup stack frame. */ + stm %r6,%r15,24(%r15) + lr %r1,%r15 + l %r0,4(0,%r15) /* load eos */ + ahi %r15,-120 /* buy stack space */ + st %r1,0(0,%r15) /* store back chain */ + st %r0,4(0,%r15) /* store eos */ + + /* Store parameters on stack, because old_mmap + * takes only one parameter: a pointer to the parameter area + */ + mvc 0x74(4,%r15),216(%r15) /* move 'offset' */ + st %r6,0x70(0,%r15) /* store 'fd' */ + st %r5,0x6C(0,%r15) /* store 'flags' */ + st %r4,0x68(0,%r15) /* store 'prot' */ + st %r3,0x64(0,%r15) /* store 'length' */ + st %r2,0x60(0,%r15) /* store 'start' */ + + la %r2,0x60(0,%r15) /* load address of parameter list */ + /* Do the system call trap. */ + svc SYS_ify(mmap) + + l %r15,0(0,%r15) /* load back chain */ + lm %r6,%r15,24(%r15) /* load registers */ + + /* check gpr 2 for error */ + lhi %r0,-4096 + clr %r2,%r0 + jnl SYSCALL_ERROR_LABEL + + /* Successful; return the syscall's value. */ + br %r14 + +PSEUDO_END (__mmap) + +weak_alias (__mmap, mmap) diff --git a/sysdeps/unix/sysv/linux/s390/msgctl.c b/sysdeps/unix/sysv/linux/s390/msgctl.c new file mode 100644 index 0000000000..9f9b8431a3 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/msgctl.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/msgctl.c> diff --git a/sysdeps/unix/sysv/linux/s390/profil-counter.h b/sysdeps/unix/sysv/linux/s390/profil-counter.h new file mode 100644 index 0000000000..33630b9384 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/profil-counter.h @@ -0,0 +1,27 @@ +/* Low-level statistical profiling support function. Linux/s390 version. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <signal.h> +#include <sigcontextinfo.h> + +static void +profil_counter (int signo, SIGCONTEXT scp) +{ + profil_count ((void *) GET_PC (scp)); +} diff --git a/sysdeps/unix/sysv/linux/s390/putmsg.c b/sysdeps/unix/sysv/linux/s390/putmsg.c new file mode 100644 index 0000000000..ebc1680ca7 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/putmsg.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/putmsg.c> diff --git a/sysdeps/unix/sysv/linux/s390/putpmsg.c b/sysdeps/unix/sysv/linux/s390/putpmsg.c new file mode 100644 index 0000000000..fbfa59892a --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/putpmsg.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/putpmsg.c> diff --git a/sysdeps/unix/sysv/linux/s390/register-dump.h b/sysdeps/unix/sysv/linux/s390/register-dump.h new file mode 100644 index 0000000000..3c859aae88 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/register-dump.h @@ -0,0 +1,130 @@ +/* Dump registers. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sys/uio.h> +#include <stdio-common/_itoa.h> + +/* We will print the register dump in this format: + + GPR0: XXXXXXXX GPR1: XXXXXXXX GPR2: XXXXXXXX GPR3: XXXXXXXX + GPR4: XXXXXXXX GPR5: XXXXXXXX GPR6: XXXXXXXX GPR7: XXXXXXXX + GPR8: XXXXXXXX GPR9: XXXXXXXX GPRA: XXXXXXXX GPRB: XXXXXXXX + GPRC: XXXXXXXX GPRD: XXXXXXXX GPRE: XXXXXXXX GPRF: XXXXXXXX + + PSW.MASK: XXXXXXXX PSW.ADDR: XXXXXXXX + + ST(0) XXXX XXXXXXXXXXXXXXXX ST(1) XXXX XXXXXXXXXXXXXXXX + ST(2) XXXX XXXXXXXXXXXXXXXX ST(3) XXXX XXXXXXXXXXXXXXXX + ST(4) XXXX XXXXXXXXXXXXXXXX ST(5) XXXX XXXXXXXXXXXXXXXX + ST(6) XXXX XXXXXXXXXXXXXXXX ST(7) XXXX XXXXXXXXXXXXXXXX + + */ + +static void +hexvalue (unsigned long int value, char *buf, size_t len) +{ + char *cp = _itoa_word (value, buf + len, 16, 0); + while (cp > buf) + *--cp = '0'; +} + +static void +register_dump (int fd, struct sigcontext *ctx) +{ + char regs[19][8]; + struct iovec iov[40]; + size_t nr = 0; + +#define ADD_STRING(str) \ + iov[nr].iov_base = (char *) str; \ + iov[nr].iov_len = strlen (str); \ + ++nr +#define ADD_MEM(str, len) \ + iov[nr].iov_base = str; \ + iov[nr].iov_len = len; \ + ++nr + + /* Generate strings of register contents. */ + hexvalue (ctx->sregs->regs.gprs[0], regs[0], 8); + hexvalue (ctx->sregs->regs.gprs[1], regs[1], 8); + hexvalue (ctx->sregs->regs.gprs[2], regs[2], 8); + hexvalue (ctx->sregs->regs.gprs[3], regs[3], 8); + hexvalue (ctx->sregs->regs.gprs[4], regs[4], 8); + hexvalue (ctx->sregs->regs.gprs[5], regs[5], 8); + hexvalue (ctx->sregs->regs.gprs[6], regs[6], 8); + hexvalue (ctx->sregs->regs.gprs[7], regs[7], 8); + hexvalue (ctx->sregs->regs.gprs[8], regs[8], 8); + hexvalue (ctx->sregs->regs.gprs[9], regs[9], 8); + hexvalue (ctx->sregs->regs.gprs[10], regs[10], 8); + hexvalue (ctx->sregs->regs.gprs[11], regs[11], 8); + hexvalue (ctx->sregs->regs.gprs[12], regs[12], 8); + hexvalue (ctx->sregs->regs.gprs[13], regs[13], 8); + hexvalue (ctx->sregs->regs.gprs[14], regs[14], 8); + hexvalue (ctx->sregs->regs.gprs[15], regs[15], 8); + hexvalue (ctx->sregs->regs.psw.mask, regs[16], 8); + hexvalue (ctx->sregs->regs.psw.addr, regs[17], 8); + + /* Generate the output. */ + ADD_STRING ("Register dump:\n\n GPR0: "); + ADD_MEM (regs[0], 8); + ADD_STRING (" GPR1: "); + ADD_MEM (regs[1], 8); + ADD_STRING (" GPR2: "); + ADD_MEM (regs[2], 8); + ADD_STRING (" GPR3: "); + ADD_MEM (regs[3], 8); + ADD_STRING ("\n GPR4: "); + ADD_MEM (regs[4], 8); + ADD_STRING (" GPR5: "); + ADD_MEM (regs[5], 8); + ADD_STRING (" GPR6: "); + ADD_MEM (regs[6], 8); + ADD_STRING (" GPR7: "); + ADD_MEM (regs[7], 8); + ADD_STRING ("\n GPR8: "); + ADD_MEM (regs[8], 8); + ADD_STRING (" GPR9: "); + ADD_MEM (regs[9], 8); + ADD_STRING (" GPRA: "); + ADD_MEM (regs[10], 8); + ADD_STRING (" GPRB: "); + ADD_MEM (regs[11], 8); + ADD_STRING ("\n GPRC: "); + ADD_MEM (regs[12], 8); + ADD_STRING (" GPRD: "); + ADD_MEM (regs[13], 8); + ADD_STRING (" GPRE: "); + ADD_MEM (regs[14], 8); + ADD_STRING (" GPRF: "); + ADD_MEM (regs[15], 8); + ADD_STRING ("\n\n PSW.MASK: "); + ADD_MEM (regs[16], 8); + ADD_STRING (" PSW.ADDR: "); + ADD_MEM (regs[17], 8); + ADD_STRING (" TRAP: "); + ADD_MEM (regs[18], 4); + ADD_STRING ("\n"); + + /* Write the stuff out. */ + writev (fd, iov, nr); +} + + +#define REGISTER_DUMP register_dump (fd, &ctx) diff --git a/sysdeps/unix/sysv/linux/s390/semctl.c b/sysdeps/unix/sysv/linux/s390/semctl.c new file mode 100644 index 0000000000..e9b1a483c9 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/semctl.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/semctl.c> diff --git a/sysdeps/unix/sysv/linux/s390/setegid.c b/sysdeps/unix/sysv/linux/s390/setegid.c new file mode 100644 index 0000000000..2e3a54c893 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/setegid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/setegid.c> diff --git a/sysdeps/unix/sysv/linux/s390/seteuid.c b/sysdeps/unix/sysv/linux/s390/seteuid.c new file mode 100644 index 0000000000..18e41d08c1 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/seteuid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/seteuid.c> diff --git a/sysdeps/unix/sysv/linux/s390/setfsgid.c b/sysdeps/unix/sysv/linux/s390/setfsgid.c new file mode 100644 index 0000000000..0886712569 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/setfsgid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/setfsgid.c> diff --git a/sysdeps/unix/sysv/linux/s390/setfsuid.c b/sysdeps/unix/sysv/linux/s390/setfsuid.c new file mode 100644 index 0000000000..a9f22eb8ab --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/setfsuid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/setfsuid.c> diff --git a/sysdeps/unix/sysv/linux/s390/setgid.c b/sysdeps/unix/sysv/linux/s390/setgid.c new file mode 100644 index 0000000000..377021d9ec --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/setgid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/setgid.c> diff --git a/sysdeps/unix/sysv/linux/s390/setgroups.c b/sysdeps/unix/sysv/linux/s390/setgroups.c new file mode 100644 index 0000000000..0e7086278f --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/setgroups.c @@ -0,0 +1,2 @@ +/* We also have to rewrite the kernel gid_t to the user land type. */ +#include <sysdeps/unix/sysv/linux/i386/setgroups.c> diff --git a/sysdeps/unix/sysv/linux/s390/setregid.c b/sysdeps/unix/sysv/linux/s390/setregid.c new file mode 100644 index 0000000000..99c57ad20f --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/setregid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/setregid.c> diff --git a/sysdeps/unix/sysv/linux/s390/setresgid.c b/sysdeps/unix/sysv/linux/s390/setresgid.c new file mode 100644 index 0000000000..daca1a4833 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/setresgid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/setresgid.c> diff --git a/sysdeps/unix/sysv/linux/s390/setresuid.c b/sysdeps/unix/sysv/linux/s390/setresuid.c new file mode 100644 index 0000000000..3aeabe9ad7 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/setresuid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/setresuid.c> diff --git a/sysdeps/unix/sysv/linux/s390/setreuid.c b/sysdeps/unix/sysv/linux/s390/setreuid.c new file mode 100644 index 0000000000..8ad61226e9 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/setreuid.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/setreuid.c> diff --git a/sysdeps/unix/sysv/linux/s390/setuid.c b/sysdeps/unix/sysv/linux/s390/setuid.c new file mode 100644 index 0000000000..c8fa23e354 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/setuid.c @@ -0,0 +1,2 @@ +#include <sysdeps/unix/sysv/linux/i386/setuid.c> + diff --git a/sysdeps/unix/sysv/linux/s390/shmctl.c b/sysdeps/unix/sysv/linux/s390/shmctl.c new file mode 100644 index 0000000000..7eac6380dd --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/shmctl.c @@ -0,0 +1 @@ +#include <sysdeps/unix/sysv/linux/i386/shmctl.c> diff --git a/sysdeps/unix/sysv/linux/s390/sigcontextinfo.h b/sysdeps/unix/sysv/linux/s390/sigcontextinfo.h new file mode 100644 index 0000000000..ccd5a41354 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/sigcontextinfo.h @@ -0,0 +1,26 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <signal.h> + +#define SIGCONTEXT struct sigcontext * +#define SIGCONTEXT_EXTRA_ARGS +#define GET_PC(ctx) ((void *)((ctx)->sregs->regs.psw.addr)) +#define GET_FRAME(ctx) (*(void **)((ctx)->sregs->regs.gprs[11])) +#define GET_STACK(ctx) ((void *)((ctx)->sregs->regs.gprs[15])) diff --git a/sysdeps/unix/sysv/linux/s390/socket.S b/sysdeps/unix/sysv/linux/s390/socket.S new file mode 100644 index 0000000000..562b98f933 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/socket.S @@ -0,0 +1,98 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> +#include <socketcall.h> + +/* &%/$&!! preprocessor */ +#define P(a, b) P2(a, b) +#define P2(a, b) a##b + + .text +/* The socket-oriented system calls are handled unusally in Linux. + They are all gated through the single `socketcall' system call number. + `socketcall' takes two arguments: the first is the subcode, specifying + which socket function is being called; and the second is a pointer to + the arguments to the specific function. + + The .S files for the other calls just #define socket and #include this. */ + +#ifndef __socket +#ifndef NO_WEAK_ALIAS +#define __socket P(__,socket) +#else +#define __socket socket +#endif +#endif + +#ifndef NARGS /* the socket.o object is compiled directly ... */ +#define NARGS 3 +#endif + +.globl __socket +ENTRY(__socket) + + /* Save registers and setup stack. */ + stm %r6,%r15,24(%r15) /* save registers */ + lr %r1,%r15 + l %r0,4(0,%r15) /* load eos */ + ahi %r15,-120 /* buy stack space */ + st %r1,0(0,%r15) /* store back chain */ + st %r0,4(0,%r15) /* store eos */ + + /* Reorder arguments */ +#if (NARGS >= 6) + mvc 0x74(4,%r15),216(%r15) /* move between parameter lists */ +#endif +#if (NARGS >= 5) + st %r6,0x70(0,%r15) /* store into parameter list */ +#endif +#if (NARGS >= 4) + st %r5,0x6C(0,%r15) /* store into parameter list */ +#endif +#if (NARGS >= 3) + st %r4,0x68(0,%r15) /* store into parameter list */ +#endif +#if (NARGS >= 2) + st %r3,0x64(0,%r15) /* store into parameter list */ + st %r2,0x60(0,%r15) +#endif + /* load subcode for socket syscall */ + lhi %r2,P(SOCKOP_,socket) + la %r3,0x60(0,%r15) /* load address of parameter list */ + + /* Do the system call trap. */ + svc SYS_ify(socketcall) + + l %r15,0(0,%r15) /* load back chain */ + lm %r6,15,24(%r15) /* load registers */ + + /* gpr2 is < 0 if there was an error. */ + lhi %r0,-125 + clr %r2,%r0 + jnl SYSCALL_ERROR_LABEL + + /* Successful; return the syscall's value. */ + br %r14 + +PSEUDO_END (__socket) + +#ifndef NO_WEAK_ALIAS +weak_alias (__socket, socket) +#endif diff --git a/sysdeps/unix/sysv/linux/s390/sys/elf.h b/sysdeps/unix/sysv/linux/s390/sys/elf.h new file mode 100644 index 0000000000..ecf6705a05 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/sys/elf.h @@ -0,0 +1,28 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SYS_ELF_H +#define _SYS_ELF_H 1 + +/* + * ELF register definitions.. + */ + +#include <asm/elf.h> + +#endif /* _SYS_ELF_H */ diff --git a/sysdeps/unix/sysv/linux/s390/sys/ptrace.h b/sysdeps/unix/sysv/linux/s390/sys/ptrace.h new file mode 100644 index 0000000000..b82730e559 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/sys/ptrace.h @@ -0,0 +1,138 @@ +/* `ptrace' debugger support interface. Linux version. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SYS_PTRACE_H +#define _SYS_PTRACE_H 1 + +#include <features.h> + +__BEGIN_DECLS +#ifdef _LINUX_PTRACE_H +/* Kludge to stop stuff gdb & strace compiles from getting upset + */ +#undef PTRACE_TRACEME +#undef PTRACE_PEEKTEXT +#undef PTRACE_PEEKDATA +#undef PTRACE_PEEKUSR +#undef PTRACE_POKETEXT +#undef PTRACE_POKEDATA +#undef PTRACE_POKEUSR +#undef PTRACE_CONT +#undef PTRACE_KILL +#undef PTRACE_SINGLESTEP + +#undef PTRACE_ATTACH +#undef PTRACE_DETACH + +#undef PTRACE_SYSCALL +#endif +/* Type of the REQUEST argument to `ptrace.' */ +enum __ptrace_request +{ + /* Indicate that the process making this request should be traced. + All signals received by this process can be intercepted by its + parent, and its parent can use the other `ptrace' requests. */ + PTRACE_TRACEME = 0, +#define PT_TRACE_ME PTRACE_TRACEME + + /* Return the word in the process's text space at address ADDR. */ + PTRACE_PEEKTEXT = 1, +#define PT_READ_I PTRACE_PEEKTEXT + + /* Return the word in the process's data space at address ADDR. */ + PTRACE_PEEKDATA = 2, +#define PT_READ_D PTRACE_PEEKDATA + + /* Return the word in the process's user area at offset ADDR. */ + PTRACE_PEEKUSER = 3, +#define PT_READ_U PTRACE_PEEKUSER + + /* Write the word DATA into the process's text space at address ADDR. */ + PTRACE_POKETEXT = 4, +#define PT_WRITE_I PTRACE_POKETEXT + + /* Write the word DATA into the process's data space at address ADDR. */ + PTRACE_POKEDATA = 5, +#define PT_WRITE_D PTRACE_POKEDATA + + /* Write the word DATA into the process's user area at offset ADDR. */ + PTRACE_POKEUSER = 6, +#define PT_WRITE_U PTRACE_POKEUSER + + /* Continue the process. */ + PTRACE_CONT = 7, +#define PT_CONTINUE PTRACE_CONT + + /* Kill the process. */ + PTRACE_KILL = 8, +#define PT_KILL PTRACE_KILL + + /* Single step the process. + This is not supported on all machines. */ + PTRACE_SINGLESTEP = 9, +#define PT_STEP PTRACE_SINGLESTEP + + /* Get all general purpose registers used by a processes. + This is not supported on all machines. */ + PTRACE_GETREGS = 12, +#define PT_GETREGS PTRACE_GETREGS + + /* Set all general purpose registers used by a processes. + This is not supported on all machines. */ + PTRACE_SETREGS = 13, +#define PT_SETREGS PTRACE_SETREGS + + /* Get all floating point registers used by a processes. + This is not supported on all machines. */ + PTRACE_GETFPREGS = 14, +#define PT_GETFPREGS PTRACE_GETFPREGS + + /* Set all floating point registers used by a processes. + This is not supported on all machines. */ + PTRACE_SETFPREGS = 15, +#define PT_SETFPREGS PTRACE_SETFPREGS + + /* Attach to a process that is already running. */ + PTRACE_ATTACH = 16, +#define PT_ATTACH PTRACE_ATTACH + + /* Detach from a process attached to with PTRACE_ATTACH. */ + PTRACE_DETACH = 17, +#define PT_DETACH PTRACE_DETACH + + /* Continue and stop at the next (return from) syscall. */ + PTRACE_SYSCALL = 24 +#define PT_SYSCALL PTRACE_SYSCALL +}; + +/* Perform process tracing functions. REQUEST is one of the values + above, and determines the action to be taken. + For all requests except PTRACE_TRACEME, PID specifies the process to be + traced. + + PID and the other arguments described above for the various requests should + appear (those that are used for the particular request) as: + pid_t PID, void *ADDR, int DATA, void *ADDR2 + after REQUEST. */ +extern long int ptrace (enum __ptrace_request __request, ...); + +__END_DECLS + +#endif /* _SYS_PTRACE_H */ diff --git a/sysdeps/unix/sysv/linux/s390/sys/ucontext.h b/sysdeps/unix/sysv/linux/s390/sys/ucontext.h new file mode 100644 index 0000000000..4723ce1810 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/sys/ucontext.h @@ -0,0 +1,96 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> +#include <signal.h> + +/* We need the signal context definitions even if they are not used + included in <signal.h>. */ +#include <bits/sigcontext.h> + + +/* Type for general register. */ +typedef int greg_t; + +/* Number of general registers. */ +#define NGREG 16 + +/* Number of each register is the `gregset_t' array. */ +enum +{ + GPR0 = 0, +#define GPR0 GPR0 + GPR1, +#define GPR1 GPR1 + GPR2, +#define GPR2 GPR2 + GPR3, +#define GPR3 GPR3 + GPR4, +#define GPR4 GPR4 + GPR5, +#define GPR5 GPR5 + GPR6, +#define GPR6 GPR6 + GPR7, +#define GPR7 GPR7 + GPR8, +#define GPR8 GPR8 + GPR9, +#define GPR9 GPR9 + GPRA, +#define GPRA GPRA + GPRB, +#define GPRB GPRB + GPRC, +#define GPRC GPRC + GPRD, +#define GPRD GPRD + GPRE, +#define GPRE GPRE + GPRF +#define GPRF GPRF +}; + +/* Structure to describe FPU registers. */ +typedef long long fpreg_t; + +/* Context to describe whole processor state. */ +typedef struct + { + int version; + greg_t gregs[NGREG]; + fpreg_t fpregs[16]; + } mcontext_t; + +/* Userlevel context. */ +typedef struct ucontext + { + unsigned long int uc_flags; + struct ucontext *uc_links; + __sigset_t uc_sigmask; + stack_t uc_stack; + mcontext_t uc_mcontext; + long int uc_filler[170]; + } ucontext_t; + +#endif /* sys/ucontext.h */ diff --git a/sysdeps/unix/sysv/linux/s390/sys/user.h b/sysdeps/unix/sysv/linux/s390/sys/user.h new file mode 100644 index 0000000000..50821826e4 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/sys/user.h @@ -0,0 +1,24 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SYS_USER_H +#define _SYS_USER_H 1 + +#include <asm/user.h> + +#endif /* _SYS_USER_H */ diff --git a/sysdeps/unix/sysv/linux/s390/syscall.S b/sysdeps/unix/sysv/linux/s390/syscall.S new file mode 100644 index 0000000000..dbd8d6887c --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/syscall.S @@ -0,0 +1,51 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> + +/* Please consult the file sysdeps/unix/sysv/linux/s390/sysdep.h for + more information about the value -4095 used below.*/ + +ENTRY (syscall) + /* Save registers and setup stack. */ + stm %r6,%r15,24(%r15) /* save registers */ + lr %r1,%r15 + l %r0,4(0,%r15) /* load eos */ + ahi %r15,-96 /* buy stack space */ + st %r1,0(0,%r15) /* store back chain */ + st %r0,4(0,%r15) /* store eos */ + + lr %r1,%r2 /* move syscall number */ + lr %r2,%r3 /* first parameter */ + lr %r3,%r4 /* second parameter */ + lr %r4,%r5 /* third parameter */ + lr %r5,%r6 /* fourth parameter */ + l %r6,192(%r15) /* fifth parameter */ + basr %r7,0 +.L0: ex %r1,.L1-.L0(%r7) /* lsb of R1 is subsituted as SVC number */ + + l %r15,0(0,%r15) /* load back chain */ + lm %r6,15,24(%r15) /* load registers */ + + lhi %r0,-4095 + clr %r2,%r0 /* check R2 for error */ + jnl SYSCALL_ERROR_LABEL + br %r14 /* return to caller */ +.L1: .word 0x0A00 /* opcode for SVC 0 */ +PSEUDO_END (syscall) diff --git a/sysdeps/unix/sysv/linux/s390/sysdep.S b/sysdeps/unix/sysv/linux/s390/sysdep.S new file mode 100644 index 0000000000..5515c0f9ce --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/sysdep.S @@ -0,0 +1,104 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> + +/* Because the Linux version is in fact m68k/ELF and the start.? file + for this system (sysdeps/m68k/elf/start.S) is also used by The Hurd + and therefore this files must not contain the definition of the + `errno' variable (I don't know why, ask Roland), we have to define + it somewhere else. + + ...and this place is here. */ + .bss + .globl errno + .type errno,@object + .size errno,4 +errno: + .space 4 +weak_alias (errno, _errno) + +/* The following code is only used in the shared library when we + compile the reentrant version. Otherwise each system call defines + each own version. */ + +/* The syscall stubs jump here when they detect an error. */ + +#undef CALL_MCOUNT +#define CALL_MCOUNT + + .text +ENTRY(__syscall_error) +#ifndef PIC +#ifndef _LIBC_REENTRANT + lcr %r2,%r2 + basr %r1,0 +.L0: l %r1,.L1-.L0(%r1) + st %r2,0(0,%r1) + lhi %r2,-1 + br %r14 +.L1: .long errno +#else + stm %r11,%r15,44(%r15) + lr %r0,%r15 + ahi %r15,-96 + st %r0,0(%r15) + lcr %r11,%r2 + basr %r13,0 +.L0: l %r1,.L1-.L0(%r13) + basr %r14,%r1 + st %r11,0(%r2) + lhi %r2,-1 + l %r15,0(%r15) + lm %r11,%r15,44(%r15) + br %r14 +.L1: .long __errno_location +#endif +#else +#ifndef _LIBC_REENTRANT + basr %r1,0 +.L0: al %r1,.L1-.L0(%r1) + l %r1,errno@GOT12(%r1) + lcr %r2,%r2 + st %r2,0(0,%r1) + lhi %r2,-1 + br %r14 +.L1: .long _GLOBAL_OFFSET_TABLE_-0b +#else + stm %r11,%r15,44(%r15) + lr %r0,%r15 + ahi %r15,-96 + st %r0,0(%r15) + lcr %r11,%r2 + basr %r13,0 +.L0: l %r12,.L1-.L0(%r13) + ar %r12,%r13 + l %r14,.L2-.L0(%r13) + bas %r14,0(%r14,%r13) + st %r11,0(0,%r2) + lhi %r2,-1 + l %r15,0(%r15) + lm %r11,%r15,44(%r15) + br %r14 +.L1: .long _GLOBAL_OFFSET_TABLE_ - .L0 +.L2: .long __errno_location@PLT - .L0 +#endif +#endif + +END (__syscall_error) diff --git a/sysdeps/unix/sysv/linux/s390/sysdep.h b/sysdeps/unix/sysv/linux/s390/sysdep.h new file mode 100644 index 0000000000..be58e7f94d --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/sysdep.h @@ -0,0 +1,212 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _LINUX_S390_SYSDEP_H +#define _LINUX_S390_SYSEDP_H + +#include <sysdeps/s390/sysdep.h> +#include <sysdeps/unix/sysdep.h> + +/* For Linux we can use the system call table in the header file + /usr/include/asm/unistd.h + of the kernel. But these symbols do not follow the SYS_* syntax + so we have to redefine the `SYS_ify' macro here. */ +/* in newer 2.1 kernels __NR_syscall is missing so we define it here */ +#define __NR_syscall 0 + +#undef SYS_ify +#define SYS_ify(syscall_name) __NR_##syscall_name + +/* ELF-like local names start with `.L'. */ +#undef L +#define L(name) .L##name + +#ifdef __ASSEMBLER__ + +/* Linux uses a negative return value to indicate syscall errors, unlike + most Unices, which use the condition codes' carry flag. + + Since version 2.1 the return value of a system call might be negative + even if the call succeeded. E.g., the `lseek' system call might return + a large offset. Therefore we must not anymore test for < 0, but test + for a real error by making sure the value in gpr2 is a real error + number. Linus said he will make sure the no syscall returns a value + in -1 .. -4095 as a valid result so we can savely test with -4095. */ + +#define SYSCALL_ERROR_LABEL 0f + +#undef PSEUDO +#define PSEUDO(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + DO_CALL (args, syscall_name); \ + lhi %r4,-4095 ; \ + clr %r2,%r4 ; \ + jnl SYSCALL_ERROR_LABEL ; \ + L(pseudo_end): + +#undef PSEUDO_END +#define PSEUDO_END(name) \ + SYSCALL_ERROR_HANDLER; \ + END (name) + +#ifndef _LIBC_REENTRANT +#ifndef PIC +#define SYSCALL_ERROR_HANDLER \ +0: lcr %r2,%r2 ; \ + basr %r1,0 ; \ +1: l %r1,2f-1b(%r1) \ + st %r2,0(%r1) \ + lhi %r2,-1 \ + br %r14 \ +2: .long errno +#else +#define SYSCALL_ERROR_HANDLER \ +0: basr %r1,0 ; \ +1: al %r1,2f-1b(%r1) ; \ + l %r1,errno@GOT12(%r1) ; \ + lcr %r2,%r2 ; \ + st %r2,0(%r1) ; \ + lhi %r2,-1 ; \ + br %r14 ; \ +2: .long _GLOBAL_OFFSET_TABLE_-1b +#endif /* PIC */ +#else +#define SYSCALL_ERROR_HANDLER \ +0: basr %r1,0 ; \ +1: al %r1,2f-1b(%r1) ; \ + br %r1 ; \ +2: .long __syscall_error@PLT-1b +#endif /* _LIBC_REENTRANT */ + +/* Linux takes system call arguments in registers: + + syscall number 1 call-clobbered + arg 1 2 call-clobbered + arg 2 3 call-clobbered + arg 3 4 call-clobbered + arg 4 5 call-clobbered + arg 5 6 call-saved + + (Of course a function with say 3 arguments does not have entries for + arguments 4 and 5.) + S390 does not need to do ANY stack operations to get its parameters + right. + */ + +#define DO_CALL(args, syscall) \ + svc SYS_ify (syscall) + +#define ret \ + br 14 + +#endif /* __ASSEMBLER__ */ + +#undef INLINE_SYSCALL +#define INLINE_SYSCALL(name, nr, args...) \ + ({ \ + DECLARGS_##nr(args) \ + int err; \ + asm volatile ( \ + LOADARGS_##nr \ + "svc %b1\n\t" \ + "lr %0,%%r2\n\t" \ + : "=d" (err) \ + : "I" (__NR_##name) ASMFMT_##nr \ + : "memory", "cc", "2", "3", "4", "5", "6"); \ + if (err >= 0xfffff001) \ + { \ + __set_errno(-err); \ + err = 0xffffffff; \ + } \ + (int) err; }) + +#define DECLARGS_0() +#define DECLARGS_1(arg1) \ + unsigned int gpr2 = (unsigned int) (arg1); +#define DECLARGS_2(arg1, arg2) \ + DECLARGS_1(arg1) \ + unsigned int gpr3 = (unsigned int) (arg2); +#define DECLARGS_3(arg1, arg2, arg3) \ + DECLARGS_2(arg1, arg2) \ + unsigned int gpr4 = (unsigned int) (arg3); +#define DECLARGS_4(arg1, arg2, arg3, arg4) \ + DECLARGS_3(arg1, arg2, arg3) \ + unsigned int gpr5 = (unsigned int) (arg4); +#define DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \ + DECLARGS_4(arg1, arg2, arg3, arg4) \ + unsigned int gpr6 = (unsigned int) (arg5); + +#define LOADARGS_0 +#define LOADARGS_1 "L 2,%2\n\t" +#define LOADARGS_2 LOADARGS_1 "L 3,%3\n\t" +#define LOADARGS_3 LOADARGS_2 "L 4,%4\n\t" +#define LOADARGS_4 LOADARGS_3 "L 5,%5\n\t" +#define LOADARGS_5 LOADARGS_4 "L 6,%6\n\t" + +#define ASMFMT_0 +#define ASMFMT_1 , "m" (gpr2) +#define ASMFMT_2 , "m" (gpr2), "m" (gpr3) +#define ASMFMT_3 , "m" (gpr2), "m" (gpr3), "m" (gpr4) +#define ASMFMT_4 , "m" (gpr2), "m" (gpr3), "m" (gpr4), "m" (gpr5) +#define ASMFMT_5 , "m" (gpr2), "m" (gpr3), "m" (gpr4), "m" (gpr5), "m" (gpr6) + +#if 0 +#undef INLINE_SYSCALL +#define INLINE_SYSCALL(name, nr, args...) \ + ({ \ + DECLARGS_##nr(args) \ + asm volatile ( \ + "svc %b1\n\t" \ + : "+d" (gpr2) \ + : "I" (__NR_##name) ASMFMT_##nr : "memory", "cc"); \ + if (gpr2 >= 0xfffff001) \ + { \ + __set_errno(-gpr2); \ + gpr2 = 0xffffffff; \ + } \ + (int) gpr2; }) + +#define DECLARGS_0() \ + register unsigned int gpr2 asm("2"); +#define DECLARGS_1(arg1) \ + register unsigned int gpr2 asm("2") = (unsigned int) (arg1); +#define DECLARGS_2(arg1, arg2) \ + DECLARGS_1(arg1) \ + register unsigned int gpr3 asm("3") = (unsigned int) (arg2); +#define DECLARGS_3(arg1, arg2, arg3) \ + DECLARGS_2(arg1, arg2) \ + register unsigned int gpr4 asm("4") = (unsigned int) (arg3); +#define DECLARGS_4(arg1, arg2, arg3, arg4) \ + DECLARGS_3(arg1, arg2, arg3) \ + register unsigned int gpr5 asm("5") = (unsigned int) (arg4); +#define DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \ + DECLARGS_4(arg1, arg2, arg3, arg4) \ + register unsigned int gpr6 asm("6") = (unsigned int) (arg5); + +#define ASMFMT_0 +#define ASMFMT_1 +#define ASMFMT_2 , "d" (gpr3) +#define ASMFMT_3 , "d" (gpr3), "d" (gpr4) +#define ASMFMT_4 , "d" (gpr3), "d" (gpr4), "d" (gpr5) +#define ASMFMT_5 , "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6) + +#endif /* 0 */ + +#endif /* _LINUX_S390_SYSDEP_H */ |