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/* 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>
#ifdef HAVE_DWARF2_UNWIND_INFO_STATIC
# include <gccframe.h>
#endif
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) ();
}
#ifdef HAVE_DWARF2_UNWIND_INFO
static char __EH_FRAME_BEGIN__[]
__attribute__ ((section (".eh_frame")))
= { };
# ifdef HAVE_DWARF2_UNWIND_INFO_STATIC
extern void __register_frame_info (const void *, struct object *);
extern void __register_frame_info_bases (const void *, struct object *,
void *, void *);
extern void __deregister_frame_info (const void *);
extern void __deregister_frame_info_bases (const void *);
# else
extern void __register_frame (const void *);
extern void __deregister_frame (const void *);
# endif
#endif
/* This function will be called from _init in init-first.c. */
void
__libc_global_ctors (void)
{
/* Call constructor functions. */
run_hooks (__CTOR_LIST__);
#ifdef HAVE_DWARF2_UNWIND_INFO
# ifdef HAVE_DWARF2_UNWIND_INFO_STATIC
{
static struct object ob;
# if defined CRT_GET_RFIB_TEXT || defined CRT_GET_RFIB_DATA
void *tbase, *dbase;
# ifdef CRT_GET_RFIB_TEXT
CRT_GET_RFIB_TEXT (tbase);
# else
tbase = NULL;
# endif
# ifdef CRT_GET_RFIB_DATA
CRT_GET_RFIB_DATA (dbase);
# else
dbase = NULL;
# endif
__register_frame_info_bases (__EH_FRAME_BEGIN__, &ob, tbase, dbase);
# else
__register_frame_info (__EH_FRAME_BEGIN__, &ob);
# endif
}
# else
__register_frame (__EH_FRAME_BEGIN__);
# endif
#endif
}
/* This function becomes the DT_FINI termination function
for the C library. */
#ifndef HAVE_INITFINI_ARRAY
void _fini (void) __attribute__ ((section (".fini"))); /* Just for kicks. */
void
_fini (void)
#else
void
__libc_fini (void)
#endif
{
/* Call destructor functions. */
run_hooks (__DTOR_LIST__);
#ifdef HAVE_DWARF2_UNWIND_INFO
# ifdef HAVE_DWARF2_UNWIND_INFO_STATIC
# if defined CRT_GET_RFIB_TEXT || defined CRT_GET_RFIB_DATA
__deregister_frame_info_bases (__EH_FRAME_BEGIN__);
# else
__deregister_frame_info (__EH_FRAME_BEGIN__);
# endif
# else
__deregister_frame (__EH_FRAME_BEGIN__);
# endif
#endif
}
#ifdef HAVE_INITFINI_ARRAY
void (*_fini_ptr) (void) __attribute__ ((section (".fini_array")))
= &__libc_fini;
#endif
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