diff options
Diffstat (limited to 'lib/crt/crtbegin.c')
-rw-r--r-- | lib/crt/crtbegin.c | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/lib/crt/crtbegin.c b/lib/crt/crtbegin.c deleted file mode 100644 index 796094f65..000000000 --- a/lib/crt/crtbegin.c +++ /dev/null @@ -1,97 +0,0 @@ -//===-- crtbegin.c - Start of constructors and destructors ----------------===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#include <stddef.h> - -__attribute__((visibility("hidden"))) void *__dso_handle = &__dso_handle; - -static void *__EH_FRAME_LIST__[] - __attribute__((section(".eh_frame"), aligned(sizeof(void *)))) = {}; - -extern void __register_frame_info(const void *, void *) __attribute__((weak)); -extern void *__deregister_frame_info(const void *) __attribute__((weak)); - -#ifndef CRT_HAS_INITFINI_ARRAY -typedef void (*fp)(void); - -static fp __CTOR_LIST__[] - __attribute__((section(".ctors"), aligned(sizeof(fp)))) = {(fp)-1}; -extern fp __CTOR_LIST_END__[]; -#endif - -extern void __cxa_finalize(void *) __attribute__((weak)); - -static void __attribute__((used)) __do_init() { - static _Bool __initialized; - if (__builtin_expect(__initialized, 0)) - return; - __initialized = 1; - - static struct { void *p[8]; } __object; - if (__register_frame_info) - __register_frame_info(__EH_FRAME_LIST__, &__object); - -#ifndef CRT_HAS_INITFINI_ARRAY - const size_t n = __CTOR_LIST_END__ - __CTOR_LIST__ - 1; - for (size_t i = n; i >= 1; i--) __CTOR_LIST__[i](); -#endif -} - -#ifdef CRT_HAS_INITFINI_ARRAY -__attribute__((section(".init_array"), - used)) static void (*__init)(void) = __do_init; -#else // CRT_HAS_INITFINI_ARRAY -#if defined(__i386__) || defined(__x86_64__) -asm(".pushsection .init,\"ax\",@progbits\n\t" - "call " __USER_LABEL_PREFIX__ "__do_init\n\t" - ".popsection"); -#elif defined(__arm__) -asm(".pushsection .init,\"ax\",%progbits\n\t" - "bl " __USER_LABEL_PREFIX__ "__do_init\n\t" - ".popsection"); -#endif // CRT_HAS_INITFINI_ARRAY -#endif - -#ifndef CRT_HAS_INITFINI_ARRAY -static fp __DTOR_LIST__[] - __attribute__((section(".dtors"), aligned(sizeof(fp)))) = {(fp)-1}; -extern fp __DTOR_LIST_END__[]; -#endif - -static void __attribute__((used)) __do_fini() { - static _Bool __finalized; - if (__builtin_expect(__finalized, 0)) - return; - __finalized = 1; - - if (__cxa_finalize) - __cxa_finalize(__dso_handle); - -#ifndef CRT_HAS_INITFINI_ARRAY - if (__deregister_frame_info) - __deregister_frame_info(__EH_FRAME_LIST__); - - const size_t n = __DTOR_LIST_END__ - __DTOR_LIST__ - 1; - for (size_t i = 1; i < n; i++) __DTOR_LIST__[i](); -#endif -} - -#ifdef CRT_HAS_INITFINI_ARRAY -__attribute__((section(".fini_array"), - used)) static void (*__fini)(void) = __do_fini; -#else // CRT_HAS_INITFINI_ARRAY -#if defined(__i386__) || defined(__x86_64__) -asm(".pushsection .fini,\"ax\",@progbits\n\t" - "call " __USER_LABEL_PREFIX__ "__do_fini\n\t" - ".popsection"); -#elif defined(__arm__) -asm(".pushsection .fini,\"ax\",%progbits\n\t" - "bl " __USER_LABEL_PREFIX__ "__do_fini\n\t" - ".popsection"); -#endif -#endif // CRT_HAS_INIT_FINI_ARRAY |