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authorUlrich Drepper <drepper@redhat.com>2008-08-14 17:11:07 +0000
committerUlrich Drepper <drepper@redhat.com>2008-08-14 17:11:07 +0000
commit9cf73ab08a912e6dab7ebe7b5477342afbde825d (patch)
treee6082e1f405ae06b5c5e554358585a52d58652b1
parent7b3ba2c4ebbe28d60224d79c7b7aa2a0e28fca78 (diff)
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* sysdeps/unix/sysv/linux/dl-origin.c (_dl_get_origin): Undo all
change related to AT_EXECFN. We cannot use that string. * sysdeps/generic/ldsodefs.h (struct rtld_global_ro): Remove _dl_execfn member. * elf/dl-support.c: Remove _dl_execfn variable. (_dl_aux_init): Remove handling of AT_EXECFN. * elf/dl-sysdep.c (_dl_sysdep_start): Remove handling of AT_EXECFN. * elf/rtld.c (process_envvars): Remove use of __ASSUME_AT_EXECFN.
-rw-r--r--ChangeLog11
-rw-r--r--elf/dl-support.c7
-rw-r--r--elf/dl-sysdep.c3
-rw-r--r--elf/rtld.c2
-rw-r--r--sysdeps/generic/ldsodefs.h5
-rw-r--r--sysdeps/unix/sysv/linux/dl-origin.c47
6 files changed, 28 insertions, 47 deletions
diff --git a/ChangeLog b/ChangeLog
index 2415c65541..d69e8e7c6d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2008-08-14 Ulrich Drepper <drepper@redhat.com>
+
+ * sysdeps/unix/sysv/linux/dl-origin.c (_dl_get_origin): Undo all
+ change related to AT_EXECFN. We cannot use that string.
+ * sysdeps/generic/ldsodefs.h (struct rtld_global_ro): Remove
+ _dl_execfn member.
+ * elf/dl-support.c: Remove _dl_execfn variable.
+ (_dl_aux_init): Remove handling of AT_EXECFN.
+ * elf/dl-sysdep.c (_dl_sysdep_start): Remove handling of AT_EXECFN.
+ * elf/rtld.c (process_envvars): Remove use of __ASSUME_AT_EXECFN.
+
2008-08-13 Ulrich Drepper <drepper@redhat.com>
[BZ #6544]
diff --git a/elf/dl-support.c b/elf/dl-support.c
index e5b74fb4d6..6bd573ec57 100644
--- a/elf/dl-support.c
+++ b/elf/dl-support.c
@@ -62,12 +62,8 @@ struct link_map *_dl_profile_map;
/* This is the address of the last stack address ever used. */
void *__libc_stack_end;
-#ifndef __ASSUME_AT_EXECFN
/* Path where the binary is found. */
const char *_dl_origin_path;
-#endif
-/* File Name of the executable. */
-const char *_dl_execfn;
/* Nonzero if runtime lookup should not update the .got/.plt. */
int _dl_bind_not;
@@ -220,9 +216,6 @@ _dl_aux_init (ElfW(auxv_t) *av)
__libc_enable_secure = av->a_un.a_val;
__libc_enable_secure_decided = 1;
break;
- case AT_EXECFN:
- GLRO(dl_execfn) = (void *) av->a_un.a_val;
- break;
# ifdef DL_PLATFORM_AUXV
DL_PLATFORM_AUXV
# endif
diff --git a/elf/dl-sysdep.c b/elf/dl-sysdep.c
index 622eeb626b..e6f4272a63 100644
--- a/elf/dl-sysdep.c
+++ b/elf/dl-sysdep.c
@@ -173,9 +173,6 @@ _dl_sysdep_start (void **start_argptr,
GLRO(dl_sysinfo_dso) = (void *) av->a_un.a_val;
break;
#endif
- case AT_EXECFN:
- GLRO(dl_execfn) = (void *) av->a_un.a_val;
- break;
#ifdef DL_PLATFORM_AUXV
DL_PLATFORM_AUXV
#endif
diff --git a/elf/rtld.c b/elf/rtld.c
index 3f2267af0e..46bece7fa3 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -2579,12 +2579,10 @@ process_envvars (enum mode *modep)
break;
case 11:
-#ifndef __ASSUME_AT_EXECFN
/* Path where the binary is found. */
if (!INTUSE(__libc_enable_secure)
&& memcmp (envline, "ORIGIN_PATH", 11) == 0)
GLRO(dl_origin_path) = &envline[12];
-#endif
break;
case 12:
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index 27c8fb620d..4d857404a3 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -593,13 +593,8 @@ struct rtld_global_ro
/* Names of shared object for which the RPATH should be ignored. */
EXTERN const char *_dl_inhibit_rpath;
-#ifndef __ASSUME_AT_EXECFN
/* Location of the binary. */
EXTERN const char *_dl_origin_path;
-#endif
-
- /* If set, points to the file name of the executable. */
- EXTERN const char *_dl_execfn;
/* -1 if the dynamic linker should honor library load bias,
0 if not, -2 use the default (honor biases for normal
diff --git a/sysdeps/unix/sysv/linux/dl-origin.c b/sysdeps/unix/sysv/linux/dl-origin.c
index 64e865b92a..a7fa53ea1d 100644
--- a/sysdeps/unix/sysv/linux/dl-origin.c
+++ b/sysdeps/unix/sysv/linux/dl-origin.c
@@ -1,5 +1,5 @@
/* Find path of executable.
- Copyright (C) 1998-2000, 2002, 2004, 2008 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
@@ -36,28 +36,29 @@ const char *
_dl_get_origin (void)
{
char linkval[PATH_MAX];
- const char *str;
- char *result = (char *) -1l;
+ char *result;
int len;
+ INTERNAL_SYSCALL_DECL (err);
- str = GLRO(dl_execfn);
- if (str == NULL || str[0] != '/')
+ len = INTERNAL_SYSCALL (readlink, err, 3, "/proc/self/exe", linkval,
+ sizeof (linkval));
+ if (! INTERNAL_SYSCALL_ERROR_P (len, err) && len > 0 && linkval[0] != '[')
{
- INTERNAL_SYSCALL_DECL (err);
-
- len = INTERNAL_SYSCALL (readlink, err, 3, "/proc/self/exe", linkval,
- sizeof (linkval));
- if (! INTERNAL_SYSCALL_ERROR_P (len, err)
- && len > 0 && linkval[0] != '[')
- str = linkval;
+ /* We can use this value. */
+ assert (linkval[0] == '/');
+ while (len > 1 && linkval[len - 1] != '/')
+ --len;
+ result = (char *) malloc (len + 1);
+ if (result == NULL)
+ result = (char *) -1;
+ else if (len == 1)
+ memcpy (result, "/", 2);
else
- str = NULL;
+ *((char *) __mempcpy (result, linkval, len - 1)) = '\0';
}
else
- len = strlen (str);
-
- if (str == NULL)
{
+ result = (char *) -1;
/* We use the environment variable LD_ORIGIN_PATH. If it is set make
a copy and strip out trailing slashes. */
if (GLRO(dl_origin_path) != NULL)
@@ -75,20 +76,6 @@ _dl_get_origin (void)
}
}
}
- else
- {
- /* We can use this value. */
- assert (str[0] == '/');
- while (len > 1 && str[len - 1] != '/')
- --len;
- result = (char *) malloc (len + 1);
- if (result == NULL)
- result = (char *) -1;
- else if (len == 1)
- memcpy (result, "/", 2);
- else
- *((char *) __mempcpy (result, str, len - 1)) = '\0';
- }
return result;
}