diff --git a/lib/libc/csu/libc_start1.c b/lib/libc/csu/libc_start1.c index 346409e3f370..d6a973bf0fe0 100644 --- a/lib/libc/csu/libc_start1.c +++ b/lib/libc/csu/libc_start1.c @@ -1,182 +1,184 @@ /*- * SPDX-License-Identifier: BSD-1-Clause * * Copyright 2012 Konstantin Belousov * Copyright (c) 2018, 2023 The FreeBSD Foundation * * Parts of this software was developed by Konstantin Belousov * under sponsorship from the FreeBSD Foundation. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include "libc_private.h" extern void (*__preinit_array_start[])(int, char **, char **) __hidden; extern void (*__preinit_array_end[])(int, char **, char **) __hidden; extern void (*__init_array_start[])(int, char **, char **) __hidden; extern void (*__init_array_end[])(int, char **, char **) __hidden; extern void (*__fini_array_start[])(void) __hidden; extern void (*__fini_array_end[])(void) __hidden; extern void _fini(void) __hidden; extern void _init(void) __hidden; extern int _DYNAMIC; #pragma weak _DYNAMIC #if defined(CRT_IRELOC_RELA) extern const Elf_Rela __rela_iplt_start[] __weak_symbol __hidden; extern const Elf_Rela __rela_iplt_end[] __weak_symbol __hidden; #include "reloc.c" static void process_irelocs(void) { const Elf_Rela *r; for (r = &__rela_iplt_start[0]; r < &__rela_iplt_end[0]; r++) crt1_handle_rela(r); } #elif defined(CRT_IRELOC_REL) extern const Elf_Rel __rel_iplt_start[] __weak_symbol __hidden; extern const Elf_Rel __rel_iplt_end[] __weak_symbol __hidden; #include "reloc.c" static void process_irelocs(void) { const Elf_Rel *r; for (r = &__rel_iplt_start[0]; r < &__rel_iplt_end[0]; r++) crt1_handle_rel(r); } #elif defined(CRT_IRELOC_SUPPRESS) #else #error "Define platform reloc type" #endif static void finalizer(void) { void (*fn)(void); size_t array_size, n; array_size = __fini_array_end - __fini_array_start; for (n = array_size; n > 0; n--) { fn = __fini_array_start[n - 1]; if ((uintptr_t)fn != 0 && (uintptr_t)fn != 1) (fn)(); } _fini(); } static void handle_static_init(int argc, char **argv, char **env) { +#ifndef PIC void (*fn)(int, char **, char **); size_t array_size, n; if (&_DYNAMIC != NULL) return; atexit(finalizer); array_size = __preinit_array_end - __preinit_array_start; for (n = 0; n < array_size; n++) { fn = __preinit_array_start[n]; if ((uintptr_t)fn != 0 && (uintptr_t)fn != 1) fn(argc, argv, env); } _init(); array_size = __init_array_end - __init_array_start; for (n = 0; n < array_size; n++) { fn = __init_array_start[n]; if ((uintptr_t)fn != 0 && (uintptr_t)fn != 1) fn(argc, argv, env); } +#endif } static void handle_argv(int argc, char *argv[], char **env) { const char *s; if (environ == NULL) environ = env; if (argc > 0 && argv[0] != NULL) { __progname = argv[0]; for (s = __progname; *s != '\0'; s++) { if (*s == '/') __progname = s + 1; } } } void __libc_start1(int argc, char *argv[], char *env[], void (*cleanup)(void), int (*mainX)(int, char *[], char *[])) { handle_argv(argc, argv, env); if (&_DYNAMIC != NULL) { atexit(cleanup); } else { #ifndef CRT_IRELOC_SUPPRESS INIT_IRELOCS; process_irelocs(); #endif _init_tls(); } handle_static_init(argc, argv, env); exit(mainX(argc, argv, env)); } /* XXXKIB _mcleanup and monstartup defs */ extern void _mcleanup(void); extern void monstartup(void *, void *); void __libc_start1_gcrt(int argc, char *argv[], char *env[], void (*cleanup)(void), int (*mainX)(int, char *[], char *[]), int *eprolp, int *etextp) { handle_argv(argc, argv, env); if (&_DYNAMIC != NULL) { atexit(cleanup); } else { #ifndef CRT_IRELOC_SUPPRESS INIT_IRELOCS; process_irelocs(); #endif _init_tls(); } atexit(_mcleanup); monstartup(eprolp, etextp); handle_static_init(argc, argv, env); exit(mainX(argc, argv, env)); }