d549ead6a9
Preloaded library could have changed the environment, and unconditional assingment to the environ undoes the customization. The binaries needs to be recompiled to get the fix. Move the common code to set up environ and __progname into the helper. Note that ia64 possibly not fixed, due to it still using old csu. Reported and tested by: John Hein <jhein@symmetricom.com> Reviewed by: kan, scf Approved by: secteam (simon) MFC after: 2 weeks
119 lines
3.4 KiB
C
119 lines
3.4 KiB
C
/*-
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* Copyright 2012 Konstantin Belousov <kib@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "notes.h"
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extern int main(int, char **, char **);
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extern void (*__preinit_array_start[])(int, char **, char **) __hidden;
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extern void (*__preinit_array_end[])(int, char **, char **) __hidden;
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extern void (*__init_array_start[])(int, char **, char **) __hidden;
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extern void (*__init_array_end[])(int, char **, char **) __hidden;
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extern void (*__fini_array_start[])(void) __hidden;
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extern void (*__fini_array_end[])(void) __hidden;
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extern void _fini(void) __hidden;
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extern void _init(void) __hidden;
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extern int _DYNAMIC;
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#pragma weak _DYNAMIC
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char **environ;
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const char *__progname = "";
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static void
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finalizer(void)
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{
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void (*fn)(void);
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size_t array_size, n;
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array_size = __fini_array_end - __fini_array_start;
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for (n = array_size; n > 0; n--) {
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fn = __fini_array_start[n - 1];
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if ((uintptr_t)fn != 0 && (uintptr_t)fn != 1)
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(fn)();
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}
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_fini();
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}
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static inline void
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handle_static_init(int argc, char **argv, char **env)
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{
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void (*fn)(int, char **, char **);
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size_t array_size, n;
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if (&_DYNAMIC != NULL)
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return;
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atexit(finalizer);
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array_size = __preinit_array_end - __preinit_array_start;
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for (n = 0; n < array_size; n++) {
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fn = __preinit_array_start[n];
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if ((uintptr_t)fn != 0 && (uintptr_t)fn != 1)
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fn(argc, argv, env);
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}
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_init();
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array_size = __init_array_end - __init_array_start;
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for (n = 0; n < array_size; n++) {
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fn = __init_array_start[n];
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if ((uintptr_t)fn != 0 && (uintptr_t)fn != 1)
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fn(argc, argv, env);
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}
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}
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static inline void
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handle_argv(int argc, char *argv[], char **env)
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{
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const char *s;
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if (environ == NULL)
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environ = env;
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if (argc > 0 && argv[0] != NULL) {
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__progname = argv[0];
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for (s = __progname; *s != '\0'; s++) {
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if (*s == '/')
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__progname = s + 1;
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}
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}
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}
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static const struct {
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int32_t namesz;
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int32_t descsz;
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int32_t type;
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char name[sizeof(NOTE_FREEBSD_VENDOR)];
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uint32_t desc;
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} crt_noinit_tag __attribute__ ((section (NOTE_SECTION),
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aligned(4))) __used = {
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.namesz = sizeof(NOTE_FREEBSD_VENDOR),
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.descsz = sizeof(uint32_t),
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.type = CRT_NOINIT_NOTETYPE,
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.name = NOTE_FREEBSD_VENDOR,
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.desc = 0
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};
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