summaryrefslogtreecommitdiff
path: root/sysdeps/x86_64/elf
diff options
context:
space:
mode:
authorAndreas Jaeger <aj@suse.de>2001-09-19 10:37:31 +0000
committerAndreas Jaeger <aj@suse.de>2001-09-19 10:37:31 +0000
commitc9cf6ddeebb7bb859a4c3a0af48f117d8193b578 (patch)
tree8e68d2b39d3fb0f02ba1326000af4af2a374e317 /sysdeps/x86_64/elf
parent71ad6ad2b57396efe8a3b9036b6646ed81216413 (diff)
Update.
* sysdeps/unix/sysv/linux/x86_64/Makefile: New file. * sysdeps/unix/sysv/linux/x86_64/Versions: New file. * sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h: New file. * sysdeps/unix/sysv/linux/x86_64/bits/mman.h: New file. * sysdeps/unix/sysv/linux/x86_64/bits/stat.h: New file. * sysdeps/unix/sysv/linux/x86_64/bits/statfs.h: New file. * sysdeps/unix/sysv/linux/x86_64/bits/time.h: New file. * sysdeps/unix/sysv/linux/x86_64/bits/types.h: New file. * sysdeps/unix/sysv/linux/x86_64/brk.c: New file. * sysdeps/unix/sysv/linux/x86_64/clone.S: New file. * sysdeps/unix/sysv/linux/x86_64/fstatfs64.c: New file. * sysdeps/unix/sysv/linux/x86_64/ftruncate64.c: New file. * sysdeps/unix/sysv/linux/x86_64/fxstat.c: New file. * sysdeps/unix/sysv/linux/x86_64/fxstat64.c: New file. * sysdeps/unix/sysv/linux/x86_64/getdents.c: New file. * sysdeps/unix/sysv/linux/x86_64/getdents64.c: New file. * sysdeps/unix/sysv/linux/x86_64/getrlimit64.c: New file. * sysdeps/unix/sysv/linux/x86_64/gettimeofday.c: New file. * sysdeps/unix/sysv/linux/x86_64/glob64.c: New file. * sysdeps/unix/sysv/linux/x86_64/lxstat.c: New file. * sysdeps/unix/sysv/linux/x86_64/lxstat64.c: New file. * sysdeps/unix/sysv/linux/x86_64/mmap64.c: New file. * sysdeps/unix/sysv/linux/x86_64/pread64.c: New file. * sysdeps/unix/sysv/linux/x86_64/profil-counter.h: New file. * sysdeps/unix/sysv/linux/x86_64/pwrite64.c: New file. * sysdeps/unix/sysv/linux/x86_64/readdir.c: New file. * sysdeps/unix/sysv/linux/x86_64/readdir64.c: New file. * sysdeps/unix/sysv/linux/x86_64/readdir64_r.c: New file. * sysdeps/unix/sysv/linux/x86_64/readdir_r.c: New file. * sysdeps/unix/sysv/linux/x86_64/recv.c: New file. * sysdeps/unix/sysv/linux/x86_64/register-dump.h: New file. * sysdeps/unix/sysv/linux/x86_64/send.c: New file. * sysdeps/unix/sysv/linux/x86_64/setrlimit64.c: New file. * sysdeps/unix/sysv/linux/x86_64/sigaction.c: New file. * sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h: New file. * sysdeps/unix/sysv/linux/x86_64/sigpending.c: New file. * sysdeps/unix/sysv/linux/x86_64/sigprocmask.c: New file. * sysdeps/unix/sysv/linux/x86_64/sigsuspend.c: New file. * sysdeps/unix/sysv/linux/x86_64/statfs64.c: New file. * sysdeps/unix/sysv/linux/x86_64/sys/perm.h: New file. * sysdeps/unix/sysv/linux/x86_64/sys/procfs.h: New file. * sysdeps/unix/sysv/linux/x86_64/sys/reg.h: New file. * sysdeps/unix/sysv/linux/x86_64/sys/ucontext.h: New file. * sysdeps/unix/sysv/linux/x86_64/sys/user.h: New file. * sysdeps/unix/sysv/linux/x86_64/syscall.S: New file. * sysdeps/unix/sysv/linux/x86_64/syscalls.list: New file. * sysdeps/unix/sysv/linux/x86_64/sysdep.S: New file. * sysdeps/unix/sysv/linux/x86_64/sysdep.h: New file. * sysdeps/unix/sysv/linux/x86_64/time.c: New file. * sysdeps/unix/sysv/linux/x86_64/truncate64.c: New file. * sysdeps/unix/sysv/linux/x86_64/umount.c: New file. * sysdeps/unix/sysv/linux/x86_64/vfork.S: New file. * sysdeps/unix/sysv/linux/x86_64/xstat.c: New file. * sysdeps/unix/sysv/linux/x86_64/xstat64.c: New file. * sysdeps/unix/x86_64/sysdep.S: New file. * sysdeps/unix/x86_64/sysdep.h: New file. * sysdeps/x86_64/Implies: New file. * sysdeps/x86_64/Makefile: New file. * sysdeps/x86_64/Versions: New file. * sysdeps/x86_64/__longjmp.S: New file. * sysdeps/x86_64/abort-instr.h: New file. * sysdeps/x86_64/atomicity.h: New file. * sysdeps/x86_64/bits/endian.h: New file. * sysdeps/x86_64/bits/setjmp.h: New file. * sysdeps/x86_64/bits/string.h: New file. * sysdeps/x86_64/bp-asm.h: New file. * sysdeps/x86_64/bsd-_setjmp.S: New file. * sysdeps/x86_64/bsd-setjmp.S: New file. * sysdeps/x86_64/dl-machine.h: New file. * sysdeps/x86_64/elf/initfini.c: New file. * sysdeps/x86_64/elf/start.S: New file. * sysdeps/x86_64/ffs.c: New file. * sysdeps/x86_64/ffsll.c: New file. * sysdeps/x86_64/fpu/bits/fenv.h: New file. * sysdeps/x86_64/fpu/bits/mathdef.h: New file. * sysdeps/x86_64/fpu/e_acosl.c: New file. * sysdeps/x86_64/fpu/e_atan2l.c: New file. * sysdeps/x86_64/fpu/e_exp2l.S: New file. * sysdeps/x86_64/fpu/e_expl.c: New file. * sysdeps/x86_64/fpu/e_fmodl.S: New file. * sysdeps/x86_64/fpu/e_log10l.S: New file. * sysdeps/x86_64/fpu/e_log2l.S: New file. * sysdeps/x86_64/fpu/e_logl.S: New file. * sysdeps/x86_64/fpu/e_powl.S: New file. * sysdeps/x86_64/fpu/e_rem_pio2l.c: New file. * sysdeps/x86_64/fpu/e_scalbl.S: New file. * sysdeps/x86_64/fpu/e_sqrtl.c: New file. * sysdeps/x86_64/fpu/fclrexcpt.c: New file. * sysdeps/x86_64/fpu/fedisblxcpt.c: New file. * sysdeps/x86_64/fpu/feenablxcpt.c: New file. * sysdeps/x86_64/fpu/fegetenv.c: New file. * sysdeps/x86_64/fpu/fegetexcept.c: New file. * sysdeps/x86_64/fpu/fegetround.c: New file. * sysdeps/x86_64/fpu/feholdexcpt.c: New file. * sysdeps/x86_64/fpu/fesetenv.c: New file. * sysdeps/x86_64/fpu/fesetround.c: New file. * sysdeps/x86_64/fpu/fgetexcptflg.c: New file. * sysdeps/x86_64/fpu/fraiseexcpt.c: New file. * sysdeps/x86_64/fpu/fsetexcptflg.c: New file. * sysdeps/x86_64/fpu/ftestexcept.c: New file. * sysdeps/x86_64/fpu/libm-test-ulps: New file. * sysdeps/x86_64/fpu/math_ldbl.h: New file. * sysdeps/x86_64/fpu/printf_fphex.c: New file. * sysdeps/x86_64/fpu/s_atanl.c: New file. * sysdeps/x86_64/fpu/s_cosl.S: New file. * sysdeps/x86_64/fpu/s_expm1l.S: New file. * sysdeps/x86_64/fpu/s_fpclassifyl.c: New file. * sysdeps/x86_64/fpu/s_isinfl.c: New file. * sysdeps/x86_64/fpu/s_isnanl.c: New file. * sysdeps/x86_64/fpu/s_log1pl.S: New file. * sysdeps/x86_64/fpu/s_logbl.c: New file. * sysdeps/x86_64/fpu/s_nextafterl.c: New file. * sysdeps/x86_64/fpu/s_nexttoward.c: New file. * sysdeps/x86_64/fpu/s_nexttowardf.c: New file. * sysdeps/x86_64/fpu/s_rintl.c: New file. * sysdeps/x86_64/fpu/s_significandl.c: New file. * sysdeps/x86_64/fpu/s_sincosl.S: New file. * sysdeps/x86_64/fpu/s_sinl.S: New file. * sysdeps/x86_64/fpu/s_tanl.S: New file. * sysdeps/x86_64/gmp-mparam.h: New file. * sysdeps/x86_64/hp-timing.c: New file. * sysdeps/x86_64/hp-timing.h: New file. * sysdeps/x86_64/htonl.S: New file. * sysdeps/x86_64/memusage.h: New file. * sysdeps/x86_64/setjmp.S: New file. * sysdeps/x86_64/soft-fp/sfp-machine.h: New file. * sysdeps/x86_64/stackinfo.h: New file. * sysdeps/x86_64/sysdep.h: New file. * sysdeps/unix/sysv/linux/x86_64/ldd-rewrite.sed: New file.
Diffstat (limited to 'sysdeps/x86_64/elf')
-rw-r--r--sysdeps/x86_64/elf/initfini.c100
-rw-r--r--sysdeps/x86_64/elf/start.S95
2 files changed, 195 insertions, 0 deletions
diff --git a/sysdeps/x86_64/elf/initfini.c b/sysdeps/x86_64/elf/initfini.c
new file mode 100644
index 0000000000..b0638aca2f
--- /dev/null
+++ b/sysdeps/x86_64/elf/initfini.c
@@ -0,0 +1,100 @@
+/* Special .init and .fini section support for x86-64.
+ Copyright (C) 2001 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 Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ In addition to the permissions in the GNU Lesser General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file with other
+ programs, and to distribute those programs without any restriction
+ coming from the use of this file. (The GNU Lesser General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into another program.)
+
+ 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* This file is compiled into assembly code which is then munged by a sed
+ script into two files: crti.s and crtn.s.
+
+ * crti.s puts a function prologue at the beginning of the
+ .init and .fini sections and defines global symbols for
+ those addresses, so they can be called as functions.
+
+ * crtn.s puts the corresponding function epilogues
+ in the .init and .fini sections. */
+
+__asm__ ("\n\
+#include \"defs.h\"\n\
+\n\
+/*@HEADER_ENDS*/\n\
+\n\
+/*@_init_PROLOG_BEGINS*/\n\
+ .align 4\n\
+ .type call_gmon_start,@function\n\
+call_gmon_start:\n\
+ subq $8, %rsp\n\
+ movq __gmon_start__@GOTPCREL(%rip), %rax\n\
+ testq %rax, %rax\n\
+ je .L22\n\
+ call *%rax\n\
+.L22:\n\
+ addq $8, %rsp\n\
+ ret\n\
+\n\
+ .section .init\n\
+ .align 4\n\
+.globl _init\n\
+ .type _init,@function\n\
+_init:\n\
+ subq $8, %rsp\n\
+ /* call call_gmon_start */\n\
+ ALIGN\n\
+ END_INIT\n\
+\n\
+/*@_init_PROLOG_ENDS*/\n\
+\n\
+/*@_init_EPILOG_BEGINS*/\n\
+ .section .init\n\
+ addq $8, %rsp\n\
+ ret\n\
+ END_INIT\n\
+\n\
+/*@_init_EPILOG_ENDS*/\n\
+\n\
+/*@_fini_PROLOG_BEGINS*/\n\
+ .section .fini\n\
+ .align 4\n\
+.globl _fini\n\
+ .type _fini,@function\n\
+_fini:\n\
+ subq $8, %rsp\n\
+ ALIGN\n\
+ END_FINI\n\
+\n\
+/*@_fini_PROLOG_ENDS*/\n\
+ call i_am_not_a_leaf@PLT\n\
+\n\
+/*@_fini_EPILOG_BEGINS*/\n\
+ .section .fini\n\
+ addq $8, %rsp\n\
+ ret\n\
+ END_FINI\n\
+\n\
+/*@_fini_EPILOG_ENDS*/\n\
+\n\
+/*@TRAILER_BEGINS*/\n\
+ .weak __gmon_start__\n\
+");
diff --git a/sysdeps/x86_64/elf/start.S b/sysdeps/x86_64/elf/start.S
new file mode 100644
index 0000000000..600aaf2566
--- /dev/null
+++ b/sysdeps/x86_64/elf/start.S
@@ -0,0 +1,95 @@
+/* Startup code compliant to the ELF x86-64 ABI.
+ Copyright (C) 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Andreas Jaeger <aj@suse.de>, 2001.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; 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. The SVR4/i386 ABI (pages 3-31, 3-32) says that when the entry
+ point runs, most registers' values are unspecified, except for:
+
+ %rdx 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.
+
+ %rsp The stack contains the arguments and environment:
+ 0(%rsp) argc
+ 8(%rsp) argv[0]
+ ...
+ (8*argc)(%rsp) NULL
+ (8*(argc+1))(%rsp) envp[0]
+ ...
+ NULL
+*/
+
+#include "bp-sym.h"
+
+ .text
+ .globl _start
+ .type _start,@function
+_start:
+ /* Clear the frame pointer. The ABI suggests this be done, to mark
+ the outermost frame obviously. */
+ xorq %rbp, %rbp
+
+ /* Extract the arguments as encoded on the stack and set up
+ the arguments for __libc_start_main (int (*main) (int, char **, char **),
+ int argc, char *argv,
+ void (*init) (void), void (*fini) (void),
+ void (*rtld_fini) (void), void *stack_end).
+ The arguments are passed via registers and on the stack:
+ main: %rdi
+ argc: %rsi
+ argv: %rdx
+ init: %rcx
+ fini: %r8
+ rtld_fini: %r9
+ stack_end: stack. */
+
+ movq %rdx, %r9 /* Address of the shared library termination
+ function. */
+ popq %rsi /* Pop the argument count. */
+ movq %rsp, %rdx /* argv starts just at the current stack top. */
+ /* Align the stack to a 16 byte boundary to follow the ABI. */
+ andq $~15, %rsp
+
+ pushq %rax /* Push garbage because we push 8 more bytes. */
+
+ /* Provide the highest stack address to the user code (for stacks
+ which grow downwards). */
+ pushq %rsp
+
+ /* Pass address of our own entry points to .fini and .init. */
+ movq $_fini, %r8
+ movq $_init, %rcx
+
+ movq $BP_SYM (main), %rdi
+
+ /* Call the user's main function, and exit with its value.
+ But let the libc call main. */
+ call BP_SYM (__libc_start_main)
+
+ hlt /* Crash if somehow `exit' does return. */
+
+/* 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