glibc/elf/soinit.c
Roland McGrath 03e81bcee6 * elf/sofini.c (__FRAME_END__): Mark as const.
* elf/soinit.c (__EH_FRAME_BEGIN__): Likewise.  Add used attribute.
2006-02-24 22:57:38 +00:00

47 lines
1.2 KiB
C

/* Initializer module for building the ELF shared C library. This file and
sofini.c do the work normally done by crtbeginS.o and crtendS.o, to wrap
the `.ctors' and `.dtors' sections so the lists are terminated, and
calling those lists of functions. */
#include <libc-internal.h>
#include <stdlib.h>
static void (*const __CTOR_LIST__[1]) (void)
__attribute__ ((section (".ctors")))
= { (void (*) (void)) -1 };
static void (*const __DTOR_LIST__[1]) (void)
__attribute__ ((section (".dtors")))
= { (void (*) (void)) -1 };
static inline void
run_hooks (void (*const list[]) (void))
{
while (*++list)
(**list) ();
}
static const char __EH_FRAME_BEGIN__[]
__attribute__ ((used, section (".eh_frame")))
= { };
/* This function will be called from _init in init-first.c. */
void
__libc_global_ctors (void)
{
/* Call constructor functions. */
run_hooks (__CTOR_LIST__);
}
/* This function becomes the DT_FINI termination function
for the C library. */
void
__libc_fini (void)
{
/* Call destructor functions. */
run_hooks (__DTOR_LIST__);
}
void (*_fini_ptr) (void) __attribute__ ((section (".fini_array")))
= &__libc_fini;