aboutsummaryrefslogtreecommitdiff
path: root/elf/ldconfig.c
diff options
context:
space:
mode:
Diffstat (limited to 'elf/ldconfig.c')
-rw-r--r--elf/ldconfig.c158
1 files changed, 121 insertions, 37 deletions
diff --git a/elf/ldconfig.c b/elf/ldconfig.c
index aab52b7e3e..18bac78273 100644
--- a/elf/ldconfig.c
+++ b/elf/ldconfig.c
@@ -1,21 +1,19 @@
-/* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2004, 2005, 2006, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 1999.
- 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.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License version 2 as
+ published by the Free Software Foundation.
- The GNU C Library is distributed in the hope that it will be useful,
+ This program 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.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#define PROCINFO_CLASS static
#include <alloca.h>
@@ -39,10 +37,16 @@
#include <glob.h>
#include <libgen.h>
-#include "ldconfig.h"
-#include "dl-cache.h"
+#include <ldconfig.h>
+#include <dl-cache.h>
-#include "dl-procinfo.h"
+#include <dl-procinfo.h>
+
+#ifdef _DL_FIRST_PLATFORM
+# define _DL_FIRST_EXTRA (_DL_FIRST_PLATFORM + _DL_PLATFORMS_COUNT)
+#else
+# define _DL_FIRST_EXTRA _DL_HWCAP_COUNT
+#endif
#ifndef LD_SO_CONF
# define LD_SO_CONF SYSCONFDIR "/ld.so.conf"
@@ -115,6 +119,9 @@ static const char *config_file;
/* Mask to use for important hardware capabilities. */
static unsigned long int hwcap_mask = HWCAP_IMPORTANT;
+/* Configuration-defined capabilities defined in kernel vDSOs. */
+static const char *hwcap_extra[64 - _DL_FIRST_EXTRA];
+
/* Name and version of program. */
static void print_version (FILE *stream, struct argp_state *state);
void (*argp_program_version_hook) (FILE *, struct argp_state *)
@@ -165,10 +172,10 @@ is_hwcap_platform (const char *name)
if (hwcap_idx != -1)
return 1;
-#ifdef USE_TLS
- if (strcmp (name, "tls") == 0)
- return 1;
-#endif
+ for (hwcap_idx = _DL_FIRST_EXTRA; hwcap_idx < 64; ++hwcap_idx)
+ if (hwcap_extra[hwcap_idx - _DL_FIRST_EXTRA] != NULL
+ && !strcmp (name, hwcap_extra[hwcap_idx - _DL_FIRST_EXTRA]))
+ return 1;
return 0;
}
@@ -203,11 +210,11 @@ path_hwcap (const char *path)
h = _dl_string_platform (ptr + 1);
if (h == (uint64_t) -1)
{
-#ifdef USE_TLS
- if (strcmp (ptr + 1, "tls") == 0)
- h = 63;
- else
-#endif
+ for (h = _DL_FIRST_EXTRA; h < 64; ++h)
+ if (hwcap_extra[h - _DL_FIRST_EXTRA] != NULL
+ && !strcmp (ptr + 1, hwcap_extra[h - _DL_FIRST_EXTRA]))
+ break;
+ if (h == 64)
break;
}
}
@@ -279,7 +286,7 @@ print_version (FILE *stream, struct argp_state *state)
Copyright (C) %s Free Software Foundation, Inc.\n\
This is free software; see the source for copying conditions. There is NO\n\
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
-"), "2004");
+"), "2006");
fprintf (stream, gettext ("Written by %s.\n"),
"Andreas Jaeger");
}
@@ -636,7 +643,7 @@ search_dir (const struct dir_entry *entry)
if (opt_verbose)
{
if (hwcap != 0)
- printf ("%s: (hwcap: 0x%" PRIx64 ")\n", entry->path, hwcap);
+ printf ("%s: (hwcap: %#.16" PRIx64 ")\n", entry->path, hwcap);
else
printf ("%s:\n", entry->path);
}
@@ -686,10 +693,23 @@ search_dir (const struct dir_entry *entry)
#endif
!is_hwcap_platform (direntry->d_name)))
continue;
- len = strlen (entry->path) + strlen (direntry->d_name);
+ len = strlen (direntry->d_name);
+ /* Skip temporary files created by the prelink program. Files with
+ names like these are never really DSOs we want to look at. */
+ if (len >= sizeof (".#prelink#") - 1)
+ {
+ if (strcmp (direntry->d_name + len - sizeof (".#prelink#") + 1,
+ ".#prelink#") == 0)
+ continue;
+ if (len >= sizeof (".#prelink#.XXXXXX") - 1
+ && memcmp (direntry->d_name + len - sizeof (".#prelink#.XXXXXX")
+ + 1, ".#prelink#.", sizeof (".#prelink#.") - 1) == 0)
+ continue;
+ }
+ len += strlen (entry->path) + 2;
if (len > file_name_len)
{
- file_name_len = len + 1;
+ file_name_len = len;
file_name = alloca (file_name_len);
if (!opt_chroot)
real_file_name = file_name;
@@ -697,10 +717,10 @@ search_dir (const struct dir_entry *entry)
sprintf (file_name, "%s/%s", entry->path, direntry->d_name);
if (opt_chroot)
{
- len = strlen (dir_name) + strlen (direntry->d_name);
+ len = strlen (dir_name) + strlen (direntry->d_name) + 2;
if (len > real_file_name_len)
{
- real_file_name_len = len + 1;
+ real_file_name_len = len;
real_file_name = alloca (real_file_name_len);
}
sprintf (real_file_name, "%s/%s", dir_name, direntry->d_name);
@@ -944,17 +964,19 @@ search_dirs (void)
static void parse_conf_include (const char *config_file, unsigned int lineno,
- bool do_chroot, const char *pattern);
+ const char *prefix, bool do_chroot,
+ const char *pattern);
/* Parse configuration file. */
static void
-parse_conf (const char *filename, bool do_chroot)
+parse_conf (const char *filename, const char *prefix, bool do_chroot)
{
FILE *file = NULL;
char *line = NULL;
const char *canon;
size_t len = 0;
unsigned int lineno;
+ size_t prefix_len = prefix ? strlen (prefix) : 0;
if (do_chroot && opt_chroot)
{
@@ -1015,7 +1037,61 @@ parse_conf (const char *filename, bool do_chroot)
cp += 8;
while ((dir = strsep (&cp, " \t")) != NULL)
if (dir[0] != '\0')
- parse_conf_include (filename, lineno, do_chroot, dir);
+ parse_conf_include (filename, lineno, prefix, do_chroot, dir);
+ }
+ else if (prefix != NULL)
+ {
+ size_t cp_len = strlen (cp);
+ char new_cp [prefix_len + cp_len + 1];
+ memcpy (mempcpy (new_cp, prefix, prefix_len), cp, cp_len + 1);
+ add_dir (new_cp);
+ }
+ else if (!strncasecmp (cp, "hwcap", 5) && isblank (cp[5]))
+ {
+ cp += 6;
+ char *p, *name = NULL;
+ unsigned long int n = strtoul (cp, &cp, 0);
+ if (cp != NULL && isblank (*cp))
+ while ((p = strsep (&cp, " \t")) != NULL)
+ if (p[0] != '\0')
+ {
+ if (name == NULL)
+ name = p;
+ else
+ {
+ name = NULL;
+ break;
+ }
+ }
+ if (name == NULL)
+ {
+ error (EXIT_FAILURE, 0, _("%s:%u: bad syntax in hwcap line"),
+ filename, lineno);
+ break;
+ }
+ if (n >= (64 - _DL_FIRST_EXTRA))
+ error (EXIT_FAILURE, 0,
+ _("%s:%u: hwcap index %lu above maximum %u"),
+ filename, lineno, n, 64 - _DL_FIRST_EXTRA - 1);
+ if (hwcap_extra[n] == NULL)
+ {
+ for (unsigned long int h = 0; h < (64 - _DL_FIRST_EXTRA); ++h)
+ if (hwcap_extra[h] != NULL && !strcmp (name, hwcap_extra[h]))
+ error (EXIT_FAILURE, 0,
+ _("%s:%u: hwcap index %lu already defined as %s"),
+ filename, lineno, h, name);
+ hwcap_extra[n] = xstrdup (name);
+ }
+ else
+ {
+ if (strcmp (name, hwcap_extra[n]))
+ error (EXIT_FAILURE, 0,
+ _("%s:%u: hwcap index %lu already defined as %s"),
+ filename, lineno, n, hwcap_extra[n]);
+ if (opt_verbose)
+ error (0, 0, _("%s:%u: duplicate hwcap %lu %s"),
+ filename, lineno, n, name);
+ }
}
else
add_dir (cp);
@@ -1031,7 +1107,7 @@ parse_conf (const char *filename, bool do_chroot)
config files to read. */
static void
parse_conf_include (const char *config_file, unsigned int lineno,
- bool do_chroot, const char *pattern)
+ const char *prefix, bool do_chroot, const char *pattern)
{
if (opt_chroot && pattern[0] != '/')
error (EXIT_FAILURE, 0,
@@ -1061,7 +1137,7 @@ parse_conf_include (const char *config_file, unsigned int lineno,
{
case 0:
for (size_t i = 0; i < gl.gl_pathc; ++i)
- parse_conf (gl.gl_pathv[i], false);
+ parse_conf (gl.gl_pathv[i], prefix, false);
globfree64 (&gl);
break;
@@ -1101,6 +1177,8 @@ main (int argc, char **argv)
{
int remaining;
+ arch_startup (argc, argv);
+
/* Parse and process arguments. */
argp_parse (&argp, argc, argv, 0, &remaining, NULL);
@@ -1118,12 +1196,16 @@ main (int argc, char **argv)
add_dir (argv[i]);
}
+#ifdef USE_TLS
+ hwcap_extra[63 - _DL_FIRST_EXTRA] = "tls";
+#endif
+
set_hwcap ();
if (opt_chroot)
{
/* Normalize the path a bit, we might need it for printing later. */
- char *endp = strchr (opt_chroot, '\0');
+ char *endp = rawmemchr (opt_chroot, '\0');
while (endp > opt_chroot && endp[-1] == '/')
--endp;
*endp = '\0';
@@ -1209,12 +1291,14 @@ main (int argc, char **argv)
if (!opt_only_cline)
{
- parse_conf (config_file, true);
+ parse_conf (config_file, NULL, true);
/* Always add the standard search paths. */
add_system_dir (SLIBDIR);
if (strcmp (SLIBDIR, LIBDIR))
add_system_dir (LIBDIR);
+
+ add_arch_dirs (config_file);
}
search_dirs ();
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 07:20:40 +0000