diff options
Diffstat (limited to 'src/env/__libc_start_main.c')
-rw-r--r-- | src/env/__libc_start_main.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/src/env/__libc_start_main.c b/src/env/__libc_start_main.c index a38569d5..07613a52 100644 --- a/src/env/__libc_start_main.c +++ b/src/env/__libc_start_main.c @@ -1,24 +1,36 @@ +#include <elf.h> #include "libc.h" void __init_tls(size_t *); void __init_security(size_t *); +#define AUX_CNT 38 + +void __init_libc(char **envp) +{ + size_t i, *auxv, aux[AUX_CNT]; + __environ = envp; + for (i=0; envp[i]; i++); + libc.auxv = auxv = (void *)(envp+i+1); + for (i=0; auxv[i]; i+=2) if (auxv[i]<AUX_CNT) aux[auxv[i]] = auxv[i+1]; + __hwcap = aux[AT_HWCAP]; + + __init_tls(aux); + __init_security(aux); +} + int __libc_start_main( int (*main)(int, char **, char **), int argc, char **argv, int (*init)(int, char **, char **), void (*fini)(void), void (*ldso_fini)(void)) { - char **envp = argv+argc+1, **auxv = envp; + char **envp = argv+argc+1; + + __init_libc(envp); - __environ = envp; - do auxv++; while (*auxv); - libc.auxv = (void *)++auxv; libc.ldso_fini = ldso_fini; libc.fini = fini; - __init_tls((void *)auxv); - __init_security((void *)auxv); - /* Execute constructors (static) linked into the application */ if (init) init(argc, argv, envp); |