glibc/SOURCES/glibc-rh1882466-3.patch
2021-10-08 11:23:19 +00:00

46 lines
1.4 KiB
Diff

commit 4d0985543f479a6f421d4d8a9e0d1dc71c9c2c53
Author: Florian Weimer <fweimer@redhat.com>
Date: Tue Dec 15 20:56:04 2020 +0100
elf: Record libc.so link map when it is the main program (bug 20972)
Otherwise, it will not participate in the dependency sorting.
Fixes commit 9ffa50b26b0cb5d3043adf6d3d0b1ea735acc147
("elf: Include libc.so.6 as main program in dependency sort
(bug 20972)").
Conflicts:
elf/rtld.c
(Missing backported header include.)
diff --git a/elf/rtld.c b/elf/rtld.c
index fde5a6a4a485207e..992f825ba00762a7 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -46,6 +46,7 @@
#include <array_length.h>
#include <libc-early-init.h>
#include <dl-main.h>
+#include <gnu/lib-names.h>
#include <assert.h>
@@ -1588,6 +1589,16 @@ ERROR: '%s': cannot process note segment.\n", _dl_argv[0]);
{
/* Extract the contents of the dynamic section for easy access. */
elf_get_dynamic_info (main_map, NULL);
+
+ /* If the main map is libc.so, update the base namespace to
+ refer to this map. If libc.so is loaded later, this happens
+ in _dl_map_object_from_fd. */
+ if (main_map->l_info[DT_SONAME] != NULL
+ && (strcmp (((const char *) D_PTR (main_map, l_info[DT_STRTAB])
+ + main_map->l_info[DT_SONAME]->d_un.d_val), LIBC_SO)
+ == 0))
+ GL(dl_ns)[LM_ID_BASE].libc_map = main_map;
+
/* Set up our cache of pointers into the hash table. */
_dl_setup_hash (main_map);
}