diff options
author | Ulrich Drepper <drepper@redhat.com> | 1997-01-21 06:10:42 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 1997-01-21 06:10:42 +0000 |
commit | fd26970f3324277683be531ad2c31f42e19e4b48 (patch) | |
tree | 5d9802aa7e77cc5c0f4b87ac661fe264a93bbe2e /sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S | |
parent | f9c53d1159ff05ac533d3351c70df1ea32c2119d (diff) |
update from main archive 970120cvs/libc-970121
Tue Jan 21 04:05:20 1997 Ulrich Drepper <drepper@cygnus.com>
* version.h (VERSION): Bump to 1.101.
Implement -d and -r option to `ldd' to check relocations.
* elf/dl-error.c: Add another method to intercept errors.
(_dl_receive_error): New function. Install user defined handler.
(receiver): New variable. Contains pointer to user provided handler.
(_dl_signal_error): If user provided handler is installed call this.
* elf/dl-load.c (_dl_map_object): When shared object is not found in
trace mode initialize a few more fields so that lookup can actually
happen but always fails.
* elf/ldd.sh.in: Rewrite argument handling. Recognize new arguments
to trigger reloation test. Return with appropriate error code if
a file wasn't found. Print warning if object is not executable.
* elf/ldd.bash.in: Likewise.
* elf/link.h (receiver_fct): New type. Used in _dl_receive_error.
(_dl_sysdep_error): New prototype.
(_dl_receive_error): New prototype.
(_dl_signal_error): Remove __attribute__ ((__noreturn__)).
* elf/rtld.c (dl_main): Rewrite argument handling. More than
one argument allowed. Recognize --data-relocs and --function-relocs
arguments.
Don't determine `lazy' mode from LD_BIND_NOW environment variable
when in trace mode.
If in trace mode and either --data-relocs or --function-relocs is
given perform relocation. Report errors using print_unresolved
function.
(print_unresolved): New function. Print information about missing
symbol on stderr.
* sysdeps/generic/dl-sysdep.c (_dl_sysdep_error): New function.
Like _dl_sysdep_message but print to stderr.
* sysdeps/mach/hurd/dl-sysdep.c: Likewise.
* sysdeps/generic/sockaddrcom.h: Add definition of sa_family_t.
Reported by Andreas Schwab.
(__SOCKADDR_COMMON): Use sa_family_t for family member.
* sysdeps/unix/bsd/bsd4.4/sockaddrcom.h: Likewise.
Linux/Sparc support by Miguel de Icaza.
* sysdeps/sparc/fpu_control.h: New file.
* sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S: New file.
* sysdeps/unix/sysv/linux/sparc/brk.c: New file.
* sysdeps/unix/sysv/linux/sparc/profil-counter.h: New file.
* sysdeps/unix/sysv/linux/sparc/sigaction.c: New file.
* sysdeps/unix/sysv/linux/sparc/socket.S: New file.
* sysdeps/unix/sysv/linux/sparc/syscall.S: New file.
* sysdeps/unix/sysv/linux/sparc/sysdep.h: New file.
* sysdeps/unix/sysv/linux/sparc/Dist: New file.
* sysdeps/unix/sysv/linux/sparc/Makefile: New file.
* sysdeps/unix/sysv/linux/net/if_arp.h: Don't use kernel header.
Provide own definition based on 4.4BSD and Linux.
* sysdeps/unix/sysv/linux/net/ppp_defs.h: Define __u32 before
including <linux/ppp_defs.h>.
* sysdeps/unix/sysv/linux/sys/msq_buf.h (struct msqid_ds): Don't
use __pid_t since the kernel might have a different size.
* sysdeps/unix/sysv/linux/sys/shm_buf.h (struct shmid_ds): Likewise.
Reported by Andreas Schwab.
* time/asctime.c: Update copyright.
* time/dysize.c: Likewise.
* time/gmtime.c: Likewise.
* time/timegm.c: Likewise.
* time/offtime.c: Likewise. De-ANSI-declfy.
* time/tzset.c (__tzset_internal): When TZ envvar does not name a
DST timezone don't default to offset -1.
* sysdeps/unix/sysv/linux/net/route.h: Don't use kernel header.
Reported by a sun <asun@zoology.washington.edu>.
* resolv/Makefile: Correct spelling: subdirs-dirs -> subdir-dirs.
* sysdeps/stub/sysv_signal.c: New file. Stub implementation.
* Makefile (distribute): Add mcheck.h.
* nis/Makefile (distribute): Add nss-nis.h.
* libio/Makefile (routines): Change vdprintf to iovdprintf to prevent
dist problem.
* nss/Makefile (distribute): Add digits_dots.c.
* sysdeps/unix/sysv/linux/Dist: Add kernel_sigaction.h.
* sysdeps/unix/sysv/linux/alpha/Dist: Add sys/procfs.h.
* sysdeps/unix/sysv/linux/sparc/Dist: Add clone.S.
* new-malloc/Makefile (distribute): Add mcheck-init.c and mcheck.h.
Mon Jan 20 17:54:28 1997 Sven Verdoolaege <skimo@breughel.ufsia.ac.be>
* manual/filesys.texi: Fix little problem (reentrant->readdir).
Fri Jan 17 19:07:07 1997 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* configure.in [$elf=yes]: Check for support of .previous and
.popsection in the assembler.
* config.h.in: Add HAVE_ASM_PREVIOUS_DIRECTIVE and
HAVE_ASM_POPSECTION_DIRECTIVE.
* libc-symbols.h (__make_section_unallocated) [HAVE_ELF]: Define
appropriate if either .previous or .popsection is supported.
(libc_warning) [HAVE_ELF]: Use it here.
Sat Jan 18 22:15:26 1997 Richard Henderson <rth@tamu.edu>
* Makeconfig (CFLAGS-.so): Add -fno-common to prevent odd sorts of
errors that can occur when linking libc.so.
Mon Jan 20 05:20:49 1997 Ulrich Drepper <drepper@cygnus.com>
* elf/dl-load.c (open_path): When running setuid don't try
a directory if it is not given with the full name.
* elf/Makefile (before-compile): New variable. Mention trusted-dirs.h.
(trusted-dirs.h): Construct file from $(default-rpath) and
$(user-defined-trusted-dirs) variables.
* elf/dl-load.c (_dl_map_object): Pass additional argument to open_path
which is NULL except for the LD_LIBRARY_PATH pass in which case it
is a pointer to the list of directories from the trusted-dirs.h
file.
(open_path): Accept additional argument with list of trusted dirs.
When running setuid and a list of trusted dirs is given only use
those which are mentioned in the list.
* elf/rtld.c (dl_main): Don't reject whole LD_LIBRARY_PATH when
running setuid. Instead accept entries which do not contain a '/'.
* Makeconfig: Correct comment about +(default_cflags).
Mon Jan 20 05:11:14 1997 Hrvoje Niksic <hniksic@srce.hr>
* time/strptime.c (recursive): Use && not || to test for valid
argument.
Mon Jan 20 05:06:50 1997 Ulrich Drepper <drepper@cygnus.com>
* elf/ldd.sh.in: Exit with value 1 if an error occured.
* elf/ldd.bash.in: Likewise.
* elf/rtld.c (dl_main): Do not always ignore LD_PRELOAD when the
binary runs setuid. It is save to use those entries which do not
contain a '/'. This is compatible with Solaris-2.
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S')
-rw-r--r-- | sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S b/sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S new file mode 100644 index 0000000000..d0fe760270 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S @@ -0,0 +1,142 @@ +/* Userland trampoline code for sigaction on Linux/SPARC */ +/* (C) 1996, 1997 Free Software Foundation, Inc. */ +/* This file is part of the GNU C Library. */ +/* Contributed by Miguel de Icaza (miguel@gnu.ai.mit.edu) */ +/* Many thanks go to David Miller for explaining all this to me */ +/* miguel@nuclecu.unam.mx */ +/* Sources: David Miller, 4.4BSD/SPARC code */ + +#include <sysdep.h> + +/* For REGWIN_SZ */ +#include <asm/ptrace.h> +#include <asm/psr.h> + +/* The C compiler frame size */ +#define CCFSZ 96 + + .text + +ENTRY(____sparc_signal_trampoline) + .global SYMBOL_NAME(____sig_table) + + /* Make room for 32 %f registers + %fsr + * this is 132 bytes + alignement = 136 + * 96 is the C frame size + */ + save %sp,-136-CCFSZ,%sp + + /* save regular registers */ + mov %g2,%l2 + mov %g3,%l3 + mov %g4,%l4 + mov %g5,%l5 + mov %g6,%l6 + mov %g7,%l7 + + /* save fpu registers */ + ld [%fp+64+16+20],%l0 /* load the psr from sigcontext */ + sethi %hi(PSR_EF),%l1 + andcc %l0,%l1,%l0 /* is floating point enabled? */ + be 1f + rd %y,%l1 /* save y anyways */ + + /* save fpu registers */ + st %fsr, [%sp + CCFSZ + 0] + std %f0, [%sp + CCFSZ + 8] + std %f2, [%sp + CCFSZ + 16] + std %f4, [%sp + CCFSZ + 24] + std %f6, [%sp + CCFSZ + 32] + std %f8, [%sp + CCFSZ + 40] + std %f10, [%sp + CCFSZ + 48] + std %f12, [%sp + CCFSZ + 56] + std %f14, [%sp + CCFSZ + 64] + std %f16, [%sp + CCFSZ + 72] + std %f18, [%sp + CCFSZ + 80] + std %f20, [%sp + CCFSZ + 88] + std %f22, [%sp + CCFSZ + 96] + std %f24, [%sp + CCFSZ + 104] + std %f26, [%sp + CCFSZ + 112] + std %f28, [%sp + CCFSZ + 120] + std %f30, [%sp + CCFSZ + 128] + +1: + /* Load signal number */ + ld [%fp + REGWIN_SZ],%o0 + mov %fp,%o1 + mov 0xfea,%o2 + + /* Sanity check */ + cmp %o0,33 + bl 1f + or %g0,%g0,%g1 /*Call sys_setup */ + t 0x10 +1: +#ifdef __PIC__ + /* Save return address */ + mov %o7,%o4 +___sxx: + call ___syy + nop +___syy: + sethi %hi(_GLOBAL_OFFSET_TABLE_-(___sxx-.)),%o5 + or %o5,%lo(_GLOBAL_OFFSET_TABLE_-(___sxx-.)),%o5 + add %o7,%o5,%o5 + /* restore return address */ + mov %o4,%o7 + mov %o5,%o4 + /* o4 has the GOT pointer */ +#endif + sethi %hi(SYMBOL_NAME(____sig_table)),%o5 + or %o5,%lo(SYMBOL_NAME(____sig_table)),%o5 +#ifdef __PIC__ + add %o5,%o4,%o4 + ld [%o4],%o5 +#endif + sll %o0,2,%o4 + add %o5,%o4,%o4 + ld [%o4],%o4 + ld [%fp + REGWIN_SZ + 4],%o1 /* Load subcode */ + ld [%fp + REGWIN_SZ + 8],%o2 /* pointer to sigcontext */ + call %o4 + ld [%fp + REGWIN_SZ + 12],%o3 /* Address where signal ocurred */ + + /* handler returned, restore state */ + tst %l0 + be 1f + wr %l1,%g0,%y + + /* fpu restoration */ + ld [%sp + CCFSZ + 0], %fsr + ldd [%sp + CCFSZ + 8], %f0 + ldd [%sp + CCFSZ + 16], %f2 + ldd [%sp + CCFSZ + 24], %f4 + ldd [%sp + CCFSZ + 32], %f6 + ldd [%sp + CCFSZ + 40], %f8 + ldd [%sp + CCFSZ + 48], %f10 + ldd [%sp + CCFSZ + 56], %f12 + ldd [%sp + CCFSZ + 64], %f14 + ldd [%sp + CCFSZ + 72], %f16 + ldd [%sp + CCFSZ + 80], %f18 + ldd [%sp + CCFSZ + 88], %f20 + ldd [%sp + CCFSZ + 96], %f22 + ldd [%sp + CCFSZ + 104], %f24 + ldd [%sp + CCFSZ + 112], %f26 + ldd [%sp + CCFSZ + 120], %f28 + ldd [%sp + CCFSZ + 128], %f30 + +1: + mov %l2,%g2 + mov %l3,%g3 + mov %l4,%g4 + mov %l5,%g5 + mov %l6,%g6 + mov %l7,%g7 + + /* call sigreturn */ + restore %g0,SYS_sigreturn,%g1 /* register back and set syscall */ + add %sp,64+16,%o0 + t 0x10 + /* if we return, sysreturn failed */ + mov SYS_exit,%g1 + t 0x10 |