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