mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-02 17:50:20 +00:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
125 lines
3.7 KiB
C
125 lines
3.7 KiB
C
/* Information collection during ld.so startup.
|
|
Copyright (C) 1995-2021 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _DL_MAIN
|
|
#define _DL_MAIN
|
|
|
|
#include <ldsodefs.h>
|
|
#include <limits.h>
|
|
#include <stdlib.h>
|
|
|
|
/* Length limits for names and paths, to protect the dynamic linker,
|
|
particularly when __libc_enable_secure is active. */
|
|
#ifdef NAME_MAX
|
|
# define SECURE_NAME_LIMIT NAME_MAX
|
|
#else
|
|
# define SECURE_NAME_LIMIT 255
|
|
#endif
|
|
#ifdef PATH_MAX
|
|
# define SECURE_PATH_LIMIT PATH_MAX
|
|
#else
|
|
# define SECURE_PATH_LIMIT 1024
|
|
#endif
|
|
|
|
/* Strings containing colon-separated lists of audit modules. */
|
|
struct audit_list
|
|
{
|
|
/* Array of strings containing colon-separated path lists. Each
|
|
audit module needs its own namespace, so pre-allocate the largest
|
|
possible list. */
|
|
const char *audit_strings[DL_NNS];
|
|
|
|
/* Number of entries added to audit_strings. */
|
|
size_t length;
|
|
|
|
/* Index into the audit_strings array (for the iteration phase). */
|
|
size_t current_index;
|
|
|
|
/* Tail of audit_strings[current_index] which still needs
|
|
processing. */
|
|
const char *current_tail;
|
|
|
|
/* Scratch buffer for returning a name which is part of the strings
|
|
in audit_strings. */
|
|
char fname[SECURE_NAME_LIMIT];
|
|
};
|
|
|
|
/* This is a list of all the modes the dynamic loader can be in. */
|
|
enum rtld_mode
|
|
{
|
|
rtld_mode_normal, rtld_mode_list, rtld_mode_verify, rtld_mode_trace,
|
|
rtld_mode_help,
|
|
};
|
|
|
|
/* Aggregated state information extracted from environment variables
|
|
and the ld.so command line. */
|
|
struct dl_main_state
|
|
{
|
|
struct audit_list audit_list;
|
|
|
|
/* The library search path. */
|
|
const char *library_path;
|
|
|
|
/* Where library_path comes from. LD_LIBRARY_PATH or --library-path. */
|
|
const char *library_path_source;
|
|
|
|
/* The list preloaded objects from LD_PRELOAD. */
|
|
const char *preloadlist;
|
|
|
|
/* The preload list passed as a command argument. */
|
|
const char *preloadarg;
|
|
|
|
/* Additional glibc-hwcaps subdirectories to search first.
|
|
Colon-separated list. */
|
|
const char *glibc_hwcaps_prepend;
|
|
|
|
/* Mask for the internal glibc-hwcaps subdirectories.
|
|
Colon-separated list. */
|
|
const char *glibc_hwcaps_mask;
|
|
|
|
enum rtld_mode mode;
|
|
|
|
/* True if any of the debugging options is enabled. */
|
|
bool any_debug;
|
|
|
|
/* True if information about versions has to be printed. */
|
|
bool version_info;
|
|
};
|
|
|
|
/* Helper function to invoke _dl_init_paths with the right arguments
|
|
from *STATE. */
|
|
static inline void
|
|
call_init_paths (const struct dl_main_state *state)
|
|
{
|
|
_dl_init_paths (state->library_path, state->library_path_source,
|
|
state->glibc_hwcaps_prepend, state->glibc_hwcaps_mask);
|
|
}
|
|
|
|
/* Print ld.so usage information and exit. */
|
|
_Noreturn void _dl_usage (const char *argv0, const char *wrong_option)
|
|
attribute_hidden;
|
|
|
|
/* Print ld.so version information and exit. */
|
|
_Noreturn void _dl_version (void) attribute_hidden;
|
|
|
|
/* Print ld.so --help output and exit. */
|
|
_Noreturn void _dl_help (const char *argv0, struct dl_main_state *state)
|
|
attribute_hidden;
|
|
|
|
#endif /* _DL_MAIN */
|