diff options
Diffstat (limited to 'tools/include/nolibc/crt.h')
| -rw-r--r-- | tools/include/nolibc/crt.h | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/tools/include/nolibc/crt.h b/tools/include/nolibc/crt.h index a5f33fef1672..d9262998dae9 100644 --- a/tools/include/nolibc/crt.h +++ b/tools/include/nolibc/crt.h @@ -7,17 +7,39 @@ #ifndef _NOLIBC_CRT_H #define _NOLIBC_CRT_H +#ifndef NOLIBC_NO_RUNTIME + +#include "compiler.h" + char **environ __attribute__((weak)); const unsigned long *_auxv __attribute__((weak)); +void _start(void); static void __stack_chk_init(void); static void exit(int); +extern void (*const __preinit_array_start[])(int, char **, char**) __attribute__((weak)); +extern void (*const __preinit_array_end[])(int, char **, char**) __attribute__((weak)); + +extern void (*const __init_array_start[])(int, char **, char**) __attribute__((weak)); +extern void (*const __init_array_end[])(int, char **, char**) __attribute__((weak)); + +extern void (*const __fini_array_start[])(void) __attribute__((weak)); +extern void (*const __fini_array_end[])(void) __attribute__((weak)); + +void _start_c(long *sp); +__attribute__((weak,used)) +#if __nolibc_has_feature(undefined_behavior_sanitizer) + __attribute__((no_sanitize("function"))) +#endif void _start_c(long *sp) { long argc; char **argv; char **envp; + int exitcode; + void (* const *ctor_func)(int, char **, char **); + void (* const *dtor_func)(void); const unsigned long *auxv; /* silence potential warning: conflicting types for 'main' */ int _nolibc_main(int, char **, char **) __asm__ ("main"); @@ -54,8 +76,19 @@ void _start_c(long *sp) ; _auxv = auxv; + for (ctor_func = __preinit_array_start; ctor_func < __preinit_array_end; ctor_func++) + (*ctor_func)(argc, argv, envp); + for (ctor_func = __init_array_start; ctor_func < __init_array_end; ctor_func++) + (*ctor_func)(argc, argv, envp); + /* go to application */ - exit(_nolibc_main(argc, argv, envp)); + exitcode = _nolibc_main(argc, argv, envp); + + for (dtor_func = __fini_array_end; dtor_func > __fini_array_start;) + (*--dtor_func)(); + + exit(exitcode); } +#endif /* NOLIBC_NO_RUNTIME */ #endif /* _NOLIBC_CRT_H */ |