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-rw-r--r--csu/elf-init.c59
1 files changed, 38 insertions, 21 deletions
diff --git a/csu/elf-init.c b/csu/elf-init.c
index d4e0b3fb88..d0a518f9fb 100644
--- a/csu/elf-init.c
+++ b/csu/elf-init.c
@@ -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
}