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authorUlrich Drepper <drepper@redhat.com>1997-08-20 03:53:21 +0000
committerUlrich Drepper <drepper@redhat.com>1997-08-20 03:53:21 +0000
commit40a55d2054ef9d9085c4e6b0157c5d30608736fc (patch)
tree7ccdbae13abe1988c2ce9af0f936daac639ba1b5 /elf/dl-load.c
parentca34d7a7c77fa8dc823fd05439870e5a96610c5a (diff)
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1997-08-20 05:30 Ulrich Drepper <drepper@cygnus.com> * catgets/catgets.c (catclose): Use __munmap instead of munmap. * catgets/gencat.c (read_input_file): Fix typo. * dirent/dirent.h: Make seekdir and telldir available for __USE_XOPEN. * elf/dl-load.c: Fix case of missing DT_RPATH in object which gets executed (e.g., when it is a static binary). * intl/bindtextdomain.c: Use strdup in glibc. Correct comment. * intl/dcgettext.c: Likewise. * intl/dgettext.c: Likewise. * intl/explodename.c: Likewise. * intl/finddomain.c: Likewise. * intl/gettext.c: Likewise. * intl/gettext.h: Likewise. * intl/hash-string.h: Likewise. * intl/l10nflist.c: Likewise. * intl/libintl.h: Likewise. * intl/loadinfo.h: Likewise. * intl/loadmsgcat.c: Likewise. * intl/localealias.c: Likewise. * intl/textdomain.c: Likewise. Unify libio sources with code in libg++. * libio/fcloseall.c: Update and reformat copyright. Protect use of weak_alias. Use _IO_* thread macros instead of __libc_*. * libio/feof.c: Likewise. * libio/feof_u.c: Likewise. * libio/ferror.c: Likewise. * libio/ferror_u.c: Likewise. * libio/fgetc.c: Likewise. * libio/filedoalloc.c: Likewise. * libio/fileno.c: Likewise. * libio/fileops.c: Likewise. * libio/fputc.c: Likewise. * libio/fputc_u.c: Likewise. * libio/freopen.c: Likewise. * libio/fseek.c: Likewise. * libio/genops.c: Likewise. * libio/getc.c: Likewise. * libio/getc_u.c: Likewise. * libio/getchar.c: Likewise. * libio/getchar_u.c: Likewise. * libio/iofclose.c: Likewise. * libio/iofdopen.c: Likewise. * libio/iofflush.c: Likewise. * libio/iofflush_u.c: Likewise. * libio/iofgetpos.c: Likewise. * libio/iofgets.c: Likewise. * libio/iofopen.c: Likewise. * libio/iofopncook.c: Likewise. * libio/iofprintf.c: Likewise. * libio/iofputs.c: Likewise. * libio/iofread.c: Likewise. * libio/iofsetpos.c: Likewise. * libio/ioftell.c: Likewise. * libio/iofwrite.c: Likewise. * libio/iogetdelim.c: Likewise. * libio/iogetline.c: Likewise. * libio/iogets.c: Likewise. * libio/iopadn.c: Likewise. * libio/iopopen.c: Likewise. * libio/ioputs.c: Likewise. * libio/ioseekoff.c: Likewise. * libio/ioseekpos.c: Likewise. * libio/iosetbuffer.c: Likewise. * libio/iosetvbuf.c: Likewise. * libio/iosprintf.c: Likewise. * libio/ioungetc.c: Likewise. * libio/iovdprintf.c: Likewise. * libio/iovsprintf.c: Likewise. * libio/iovsscanf.c: Likewise. * libio/libio.h: Likewise. * libio/libioP.h: Likewise. * libio/obprintf.c: Likewise. * libio/pclose.c: Likewise. * libio/peekc.c: Likewise. * libio/putc.c: Likewise. * libio/putchar.c: Likewise. * libio/rewind.c: Likewise. * libio/setbuf.c: Likewise. * libio/setlinebuf.c: Likewise. * libio/stdfiles.c: Likewise. * libio/stdio.c: Likewise. * libio/strfile.h: Likewise. * libio/strops.c: Likewise. * libio/vasprintf.c: Likewise. * libio/vscanf.c: Likewise. * libio/vsnprintf.c: Likewise. * manual/libc.texinfo: Add menu entries for chapter on message translation. * manual/locale.texi: Correct next entry in @node for new chapter. * manual/search.texi: Likewise for previous link. * manual/message.texi: New file. * manual/startup.texi: Document LC_ALL, LC_MESSAGES, NLSPATH, setenv, unsetenv, and clearenv. * manual/string.texi: Fix typos. Patch by Jim Meyering. * math/Makefile (test-longdouble-yes): Enable. We want long double tests now. Crusade against strcat. * nis/nss_nisplus/nisplus-publickey.c: Remove uses of strcat. * stdlib/canonicalize.c: Likewise. * posix/glob.h: Define __const if necessary. Use __const in all prototypes. * sysdeps/generic/stpcpy.c: Use K&R form to allow use in other GNU packages. * posix/wordexp.c: Completely reworked buffer handling for much better performance. Patch by Tim Waugh. * socket/sys/sochet.h (getpeername): Fix type of LEN parameter, it must be socklen_t. * sysdeps/libm-i387/e_remainder.S: Pretty print. * sysdeps/libm-i387/e_remainderf.S: Likewise. * sysdeps/libm-i387/e_remainderl.S: Pop extra value for FPU stack. * sysdeps/libm-i387/s_cexp.S: Little optimization. * sysdeps/libm-i387/s_cexpl.S: Likewise. * sysdep/libm-ieee754/s_csinhl.c: Include <fenv.h>. 1997-08-18 15:21 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/if_index.c (if_nameindex): Fix memory leak in cleanup code. 1997-08-17 Paul Eggert <eggert@twinsun.com> * tzset.c (__tzset_internal): Fix memory leak when the user specifies a TZ value that uses a default rule file. Do not assume US DST rules when the user specifies that there is no DST. 1997-08-10 19:17 Philip Blundell <Philip.Blundell@pobox.com> * inet/getnameinfo.c: Tidy up. * sysdeps/posix/getaddrinfo.c: Likewise. * sysdeps/unix/sysv/linux/if_index.c (if_nametoindex): Return 0 if using stub code. (if_indextoname): Use SIOGIFNAME ioctl if the kernel supports it. (if_nameindex): Use alloca() rather than malloc(); use SIOCGIFCOUNT ioctl if the kernel supports it. 1997-08-16 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/sys/mount.h: Remove the IS_* macros, they operate on internal kernel structures and have no place in a user header. 1997-08-16 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makerules (lib%.so): Depend on $(+preinit) and $(+postinit). (build-shlib): Filter them out of $^. 1997-08-15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/dl-error.c (_dl_signal_error): Fix error message. 1997-08-16 04:06 Ulrich Drepper <drepper@cygnus.com> * assert/assert.h [__USE_GNU]: Undefine assert_perror. Reported by Theodore C. Belding <Ted.Belding@umich.edu>. 1997-08-13 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makeconfig: Change object suffixes from *.[spgb]o to *.o[spgb] to avoid conflict with PO files. * Makerules: Likewise. * Rules: Likewise. * elf/Makefile: Likewise. * extra-lib.mk: Likewise. * gmon/Makefile: Likewise. * nis/Makefile: Likewise. * nss/Makefile: Likewise. * resolv/Makefile: Likewise. * rpm/Makefile: Likewise. * sunrpc/Makefile: Likewise. * sysdeps/sparc/elf/Makefile: Likewise. * sysdeps/sparc64/elf/Makefile: Likewise. * sysdeps/unix/sysv/linux/sparc/Makefile: Likewise. (ASFLAGS-.os): Renamed from as-FLAGS.os.
Diffstat (limited to 'elf/dl-load.c')
-rw-r--r--elf/dl-load.c115
1 files changed, 75 insertions, 40 deletions
diff --git a/elf/dl-load.c b/elf/dl-load.c
index f0af29292a..ce3bd9fb94 100644
--- a/elf/dl-load.c
+++ b/elf/dl-load.c
@@ -94,6 +94,11 @@ size_t _dl_pagesize;
extern const char *_dl_platform;
extern size_t _dl_platformlen;
+/* This is a fake list to store the RPATH information for static
+ binaries. */
+static struct r_search_path_elem **fake_path_list;
+
+
/* Local version of `strdup' function. */
static inline char *
local_strdup (const char *s)
@@ -308,6 +313,12 @@ decompose_rpath (const char *rpath, size_t additional_room)
void
_dl_init_paths (void)
{
+ static const char *trusted_dirs[] =
+ {
+#include "trusted-dirs.h"
+ NULL
+ };
+
struct r_search_path_elem **pelem;
/* We have in `search_path' the information about the RPATH of the
@@ -333,53 +344,72 @@ _dl_init_paths (void)
nllp = 0;
l = _dl_loaded;
- if (l && l->l_type != lt_loaded && l->l_info[DT_RPATH])
+ if (l != NULL)
{
- /* Allocate room for the search path and fill in information from
- RPATH. */
- l->l_rpath_dirs =
- decompose_rpath ((const char *) (l->l_addr
- + l->l_info[DT_STRTAB]->d_un.d_ptr
- + l->l_info[DT_RPATH]->d_un.d_val),
- nllp);
+ if (l->l_type != lt_loaded && l->l_info[DT_RPATH])
+ {
+ /* Allocate room for the search path and fill in information
+ from RPATH. */
+ l->l_rpath_dirs =
+ decompose_rpath ((const char *)
+ (l->l_addr + l->l_info[DT_STRTAB]->d_un.d_ptr
+ + l->l_info[DT_RPATH]->d_un.d_val),
+ nllp);
+ }
+ else
+ {
+ /* If we have no LD_LIBRARY_PATH and no RPATH we must tell
+ this somehow to prevent we look this up again and again. */
+ if (nllp == 0)
+ l->l_rpath_dirs = (struct r_search_path_elem **) -1l;
+ else
+ {
+ l->l_rpath_dirs = (struct r_search_path_elem **)
+ malloc ((nllp + 1) * sizeof (*l->l_rpath_dirs));
+ if (l->l_rpath_dirs == NULL)
+ _dl_signal_error (ENOMEM, NULL,
+ "cannot create cache for search path");
+ l->l_rpath_dirs[0] = NULL;
+ }
+ }
+
+ /* We don't need to search the list of fake entries which is searched
+ when no dynamic objects were loaded at this time. */
+ fake_path_list = NULL;
+
+ if (nllp > 0)
+ {
+ char *copy = strdupa (llp);
+
+ /* Decompose the LD_LIBRARY_PATH and fill in the result.
+ First search for the next place to enter elements. */
+ struct r_search_path_elem **result = l->l_rpath_dirs;
+ while (*result != NULL)
+ ++result;
+
+ /* We need to take care that the LD_LIBRARY_PATH environment
+ variable can contain a semicolon. */
+ (void) fillin_rpath (copy, result, ":;",
+ __libc_enable_secure ? trusted_dirs : NULL);
+ }
}
else
{
- /* If we have no LD_LIBRARY_PATH and no RPATH we must tell this
- somehow to prevent we look this up again and again. */
+ /* This is a statically linked program but we still have to
+ take care for the LD_LIBRARY_PATH environment variable. We
+ use a fake link_map entry. This will only contain the
+ l_rpath_dirs information. */
+
if (nllp == 0)
- l->l_rpath_dirs = (struct r_search_path_elem **) -1l;
+ fake_path_list = NULL;
else
{
- l->l_rpath_dirs =
- (struct r_search_path_elem **) malloc ((nllp + 1)
- * sizeof (*l->l_rpath_dirs));
- if (l->l_rpath_dirs == NULL)
- _dl_signal_error (ENOMEM, NULL,
- "cannot create cache for search path");
- l->l_rpath_dirs[0] = NULL;
- }
- }
+ fake_path_list = (struct r_search_path_elem **)
+ malloc ((nllp + 1) * sizeof (struct r_search_path_elem *));
- if (nllp > 0)
- {
- static const char *trusted_dirs[] =
- {
-#include "trusted-dirs.h"
- NULL
- };
- char *copy = strdupa (llp);
-
- /* Decompose the LD_LIBRARY_PATH and fill in the result.
- First search for the next place to enter elements. */
- struct r_search_path_elem **result = l->l_rpath_dirs;
- while (*result != NULL)
- ++result;
-
- /* We need to take care that the LD_LIBRARY_PATH environement
- variable can contain a semicolon. */
- (void) fillin_rpath (copy, result, ":;",
- __libc_enable_secure ? trusted_dirs : NULL);
+ (void) fillin_rpath (local_strdup (llp), fake_path_list, ":;",
+ __libc_enable_secure ? trusted_dirs : NULL);
+ }
}
/* Now set up the rest of the rtld_search_dirs. */
@@ -871,7 +901,7 @@ _dl_map_object (struct link_map *loader, const char *name, int type,
/* Look for this name among those already loaded. */
for (l = _dl_loaded; l; l = l->l_next)
- if (_dl_name_match_p (name, l) ||
+ if (l->l_opencount > 0 && _dl_name_match_p (name, l) ||
/* If the requested name matches the soname of a loaded object,
use that object. */
(l->l_info[DT_SONAME] &&
@@ -923,6 +953,11 @@ _dl_map_object (struct link_map *loader, const char *name, int type,
&& l->l_rpath_dirs != (struct r_search_path_elem **) -1l)
fd = open_path (name, namelen, l->l_rpath_dirs, &realname);
+ /* This is used if a static binary uses dynamic loading and there
+ is a LD_LIBRARY_PATH given. */
+ if (fd == -1 && fake_path_list != NULL)
+ fd = open_path (name, namelen, fake_path_list, &realname);
+
if (fd == -1)
{
/* Check the list of libraries in the file /etc/ld.so.cache,