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2.5-18.1

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This commit is contained in:
Jakub Jelinek
2007-07-12 18:26:36 +00:00
parent 7d58530341
commit 0ecb606cb6
6215 changed files with 494638 additions and 305010 deletions
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59
csu/elf-init.c
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@ -1,5 +1,5 @@
/* Startup support for ELF initializers/finalizers in the main executable.
Copyright (C) 2002, 2003 Free Software Foundation, Inc.
Copyright (C) 2002, 2003, 2004, 2005 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
@ -36,16 +36,37 @@
#include <stddef.h>
#ifdef HAVE_INITFINI_ARRAY
/* These magic symbols are provided by the linker. */
extern void (*__preinit_array_start []) (void) attribute_hidden;
extern void (*__preinit_array_end []) (void) attribute_hidden;
extern void (*__init_array_start []) (void) attribute_hidden;
extern void (*__init_array_end []) (void) attribute_hidden;
extern void (*__preinit_array_start []) (int, char **, char **)
attribute_hidden;
extern void (*__preinit_array_end []) (int, char **, char **)
attribute_hidden;
extern void (*__init_array_start []) (int, char **, char **)
attribute_hidden;
extern void (*__init_array_end []) (int, char **, char **)
attribute_hidden;
extern void (*__fini_array_start []) (void) attribute_hidden;
extern void (*__fini_array_end []) (void) attribute_hidden;
#if defined HAVE_VISIBILITY_ATTRIBUTE \
&& (defined SHARED || defined LIBC_NONSHARED)
# define hidden_undef_2(x) #x
# define hidden_undef_1(x) hidden_undef_2 (x)
# define hidden_undef(x) \
__asm (hidden_undef_1 (ASM_GLOBAL_DIRECTIVE) " " #x); \
__asm (".hidden " #x);
#else
# define hidden_undef(x)
#endif
hidden_undef (__preinit_array_start)
hidden_undef (__preinit_array_end)
hidden_undef (__init_array_start)
hidden_undef (__init_array_end)
hidden_undef (__fini_array_start)
hidden_undef (__fini_array_end)
/* These function symbols are provided for the .init/.fini section entry
points automagically by the linker. */
extern void _init (void);
@ -57,43 +78,39 @@ extern void _fini (void);
the libc.a module in that it doesn't call the preinit array. */
void
__libc_csu_init (void)
__libc_csu_init (int argc, char **argv, char **envp)
{
#ifdef HAVE_INITFINI_ARRAY
/* For dynamically linked executables the preinit array is executed by
the dynamic linker (before initializing any shared object. */
# ifndef LIBC_NONSHARED
#ifndef LIBC_NONSHARED
/* For static executables, preinit happens rights before init. */
{
const size_t size = __preinit_array_end - __preinit_array_start;
size_t i;
for (i = 0; i < size; i++)
(*__preinit_array_start [i]) ();
(*__preinit_array_start [i]) (argc, argv, envp);
}
# endif
#endif
_init ();
#ifdef HAVE_INITFINI_ARRAY
{
const size_t size = __init_array_end - __init_array_start;
size_t i;
for (i = 0; i < size; i++)
(*__init_array_start [i]) ();
}
#endif
const size_t size = __init_array_end - __init_array_start;
for (size_t i = 0; i < size; i++)
(*__init_array_start [i]) (argc, argv, envp);
}
/* This function should not be used anymore. We run the executable's
destructor now just like any other. We cannot remove the function,
though. */
void
__libc_csu_fini (void)
{
#ifdef HAVE_INITFINI_ARRAY
#ifndef LIBC_NONSHARED
size_t i = __fini_array_end - __fini_array_start;
while (i-- > 0)
(*__fini_array_start [i]) ();
#endif
_fini ();
#endif
}