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authorRoland McGrath <roland@gnu.org>2004-11-06 00:24:55 +0000
committerRoland McGrath <roland@gnu.org>2004-11-06 00:24:55 +0000
commit30e32d23eb06cbeae02e51c7c4df150736dba795 (patch)
tree654ce3ff4612247d589a718a88ce14b9a6df8212 /elf
parentc3047bca73efe22cc7904e1d2474cb17ef161d25 (diff)
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* sysdeps/generic/ldsodefs.h (struct rtld_global_ro): Define
_dl_sysinfo_dso under [NEED_DL_SYSINFO_DSO] as well. * elf/rtld.c (dl_main): Set up GLRO(dl_sysinfo_dso) under [NEED_DL_SYSINFO_DSO] as well. * sysdeps/generic/dl-sysdep.c (_dl_show_auxv): Always include AT_SYSINFO and AT_SYSINFO_EHDR in name table. (_dl_sysdep_start) [NEED_DL_SYSINFO_DSO]: Match AT_SYSINFO_EHDR. * elf/dl-support.c (_dl_sysinfo_dso): Define also under [NEED_DL_SYSINFO_DSO]. (_dl_aux_init) [NEED_DL_SYSINFO || NEED_DL_SYSINFO_DSO]: Match AT_SYSINFO_EHDR and set GL(dl_sysinfo_dso). 2004-11-05 Roland McGrath <roland@redhat.com>
Diffstat (limited to 'elf')
-rw-r--r--elf/dl-support.c7
-rw-r--r--elf/rtld.c8
2 files changed, 12 insertions, 3 deletions
diff --git a/elf/dl-support.c b/elf/dl-support.c
index d8957ce308..b10dc90418 100644
--- a/elf/dl-support.c
+++ b/elf/dl-support.c
@@ -136,6 +136,8 @@ int (*_dl_make_stack_executable_hook) (void **) internal_function
#ifdef NEED_DL_SYSINFO
/* Needed for improved syscall handling on at least x86/Linux. */
uintptr_t _dl_sysinfo = DL_SYSINFO_DEFAULT;
+#endif
+#if defined NEED_DL_SYSINFO || defined NEED_DL_SYSINFO_DSO
/* Address of the ELF headers in the vsyscall page. */
const ElfW(Ehdr) *_dl_sysinfo_dso;
#endif
@@ -184,6 +186,11 @@ _dl_aux_init (ElfW(auxv_t) *av)
GL(dl_sysinfo) = av->a_un.a_val;
break;
#endif
+#if defined NEED_DL_SYSINFO || defined NEED_DL_SYSINFO_DSO
+ case AT_SYSINFO_EHDR:
+ GL(dl_sysinfo_dso) = av->a_un.a_ptr;
+ break;
+#endif
case AT_UID:
uid ^= av->a_un.a_val;
seen |= 1;
diff --git a/elf/rtld.c b/elf/rtld.c
index 06dd099cf5..29aee2d96d 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -1274,7 +1274,7 @@ ERROR: ld.so: object '%s' from %s cannot be preloaded: ignored.\n",
assert (i == npreloads);
}
-#ifdef NEED_DL_SYSINFO
+#if defined NEED_DL_SYSINFO || defined NEED_DL_SYSINFO_DSO
struct link_map *sysinfo_map = NULL;
if (GLRO(dl_sysinfo_dso) != NULL)
{
@@ -1338,9 +1338,11 @@ ERROR: ld.so: object '%s' from %s cannot be preloaded: ignored.\n",
}
/* We have a prelinked DSO preloaded by the system. */
+ sysinfo_map = l;
+# ifdef NEED_DL_SYSINFO
if (GLRO(dl_sysinfo) == DL_SYSINFO_DEFAULT)
GLRO(dl_sysinfo) = GLRO(dl_sysinfo_dso)->e_entry + l->l_addr;
- sysinfo_map = l;
+# endif
}
}
#endif
@@ -1389,7 +1391,7 @@ ERROR: ld.so: object '%s' from %s cannot be preloaded: ignored.\n",
GL(dl_rtld_map).l_next = (i + 1 < main_map->l_searchlist.r_nlist
? main_map->l_searchlist.r_list[i + 1]
: NULL);
-#ifdef NEED_DL_SYSINFO
+#if defined NEED_DL_SYSINFO || defined NEED_DL_SYSINFO_DSO
if (sysinfo_map != NULL
&& GL(dl_rtld_map).l_prev->l_next == sysinfo_map
&& GL(dl_rtld_map).l_next != sysinfo_map)