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Diffstat (limited to 'REORG.TODO/elf/soinit.c')
-rw-r--r-- | REORG.TODO/elf/soinit.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/REORG.TODO/elf/soinit.c b/REORG.TODO/elf/soinit.c new file mode 100644 index 0000000000..fe9935732b --- /dev/null +++ b/REORG.TODO/elf/soinit.c @@ -0,0 +1,43 @@ +/* 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. */ + +#ifndef NO_CTORS_DTORS_SECTIONS +# include <stdlib.h> + +static void (*const __CTOR_LIST__[1]) (void) + __attribute__ ((used, section (".ctors"))) + = { (void (*) (void)) -1 }; +static void (*const __DTOR_LIST__[1]) (void) + __attribute__ ((used, section (".dtors"))) + = { (void (*) (void)) -1 }; + +static inline void +run_hooks (void (*const list[]) (void)) +{ + while (*++list) + (**list) (); +} + +/* 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; +#endif |