From 2b089f2101801ca2a3295fcd755261288ce6268e Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 15 Mar 2003 23:09:11 +0000 Subject: 2003-03-15 Roland McGrath * sysdeps/generic/libc-start.c [LIBC_START_MAIN]: If defined, define a static function by that name instead of BP_SYM (__libc_start_main). [LIBC_START_MAIN_AUXVEC_ARG]: Take AUXVEC as argument. [MAIN_AUXVEC_ARG]: Pass 4th argument to MAIN. [INIT_MAIN_ARGS]: Give INIT the same args as MAIN. --- sysdeps/generic/libc-start.c | 88 +++++++++++++++++++++++++++++++++----------- 1 file changed, 67 insertions(+), 21 deletions(-) (limited to 'sysdeps/generic/libc-start.c') diff --git a/sysdeps/generic/libc-start.c b/sysdeps/generic/libc-start.c index b79c803d55..8e4a877469 100644 --- a/sysdeps/generic/libc-start.c +++ b/sysdeps/generic/libc-start.c @@ -44,22 +44,51 @@ extern void __pthread_initialize_minimal (void) #endif -extern int BP_SYM (__libc_start_main) (int (*main) (int, char **, char **), - int argc, - char *__unbounded *__unbounded ubp_av, - void (*init) (void), - void (*fini) (void), - void (*rtld_fini) (void), - void *__unbounded stack_end) +#ifdef LIBC_START_MAIN +# define STATIC static inline +#else +# define STATIC +# define LIBC_START_MAIN BP_SYM (__libc_start_main) +#endif + +STATIC int LIBC_START_MAIN (int (*main) (int, char **, char ** +#ifdef MAIN_AUXVEC_ARG + , void * +#endif + + ), + int argc, + char *__unbounded *__unbounded ubp_av, +#ifdef LIBC_START_MAIN_AUXVEC_ARG + ElfW(auxv_t) *__unbounded auxvec, +#endif +#ifdef INIT_MAIN_ARGS + __typeof (main) init, +#else + void (*init) (void), +#endif + void (*fini) (void), + void (*rtld_fini) (void), + void *__unbounded stack_end) __attribute__ ((noreturn)); -int -/* GKM FIXME: GCC: this should get __BP_ prefix by virtue of the - BPs in the arglist of startup_info.main and startup_info.init. */ -BP_SYM (__libc_start_main) (int (*main) (int, char **, char **), - int argc, char *__unbounded *__unbounded ubp_av, - void (*init) (void), void (*fini) (void), - void (*rtld_fini) (void), void *__unbounded stack_end) +STATIC int +LIBC_START_MAIN (int (*main) (int, char **, char ** +#ifdef MAIN_AUXVEC_ARG + , void * +#endif + ), + int argc, char *__unbounded *__unbounded ubp_av, +#ifdef LIBC_START_MAIN_AUXVEC_ARG + ElfW(auxv_t) *__unbounded auxvec, +#endif +#ifdef INIT_MAIN_ARGS + __typeof (main) init, +#else + void (*init) (void), +#endif + void (*fini) (void), + void (*rtld_fini) (void), void *__unbounded stack_end) { char *__unbounded *__unbounded ubp_ev = &ubp_av[argc + 1]; #if __BOUNDED_POINTERS__ @@ -80,13 +109,18 @@ BP_SYM (__libc_start_main) (int (*main) (int, char **, char **), #ifndef SHARED # ifdef HAVE_AUX_VECTOR - void *__unbounded *__unbounded auxvec; /* First process the auxiliary vector since we need to find the program header to locate an eventually present PT_TLS entry. */ - for (auxvec = (void *__unbounded *__unbounded) ubp_ev; - *auxvec != NULL; ++auxvec); - ++auxvec; - _dl_aux_init ((ElfW(auxv_t) *) auxvec); +# ifndef LIBC_START_MAIN_AUXVEC_ARG + ElfW(auxv_t) *__unbounded auxvec; + { + char *__unbounded *__unbounded evp = uvp_ev; + while (*evp != NULL) + ++evp; + auxvec = (ElfW(auxv_t) *__unbounded) evp; + } +# endif + _dl_aux_init (auxvec); # endif # ifdef DL_SYSDEP_OSCHECK if (!__libc_multiple_libcs) @@ -136,7 +170,14 @@ BP_SYM (__libc_start_main) (int (*main) (int, char **, char **), _dl_debug_printf ("\ninitialize program: %s\n\n", argv[0]); #endif if (init) - (*init) (); + (*init) ( +#ifdef INIT_MAIN_ARGS + argc, argv, __environ +# ifdef MAIN_AUXVEC_ARG + , auxvec +# endif +#endif + ); #ifdef SHARED if (__builtin_expect (GL(dl_debug_mask) & DL_DEBUG_IMPCALLS, 0)) @@ -149,7 +190,12 @@ BP_SYM (__libc_start_main) (int (*main) (int, char **, char **), { /* XXX This is where the try/finally handling must be used. */ - result = main (argc, argv, __environ); + result = main (argc, argv, __environ +#ifdef MAIN_AUXVEC_ARG + , auxvec +#endif + + ); } #ifdef HAVE_CANCELBUF else -- cgit v1.2.1