38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
commit 71bcfa62451dfaa015326d3524f2a0e2d09d80ed
|
|
Author: David Kilroy <David.Kilroy@arm.com>
|
|
Date: Wed Feb 12 14:30:31 2020 -0300
|
|
|
|
elf: avoid redundant sort in dlopen
|
|
|
|
l_initfini is already sorted by dependency in _dl_map_object_deps(),
|
|
so avoid sorting again in dl_open_worker().
|
|
|
|
Tested by running the testsuite on x86_64.
|
|
|
|
diff --git a/elf/dl-open.c b/elf/dl-open.c
|
|
index d31356f7e17dfb14..980a28c836ca9a7a 100644
|
|
--- a/elf/dl-open.c
|
|
+++ b/elf/dl-open.c
|
|
@@ -614,9 +614,10 @@ dl_open_worker (void *a)
|
|
if (GLRO(dl_lazy))
|
|
reloc_mode |= mode & RTLD_LAZY;
|
|
|
|
- /* Sort the objects by dependency for the relocation process. This
|
|
- allows IFUNC relocations to work and it also means copy
|
|
- relocation of dependencies are if necessary overwritten. */
|
|
+ /* Objects must be sorted by dependency for the relocation process.
|
|
+ This allows IFUNC relocations to work and it also means copy
|
|
+ relocation of dependencies are if necessary overwritten.
|
|
+ __dl_map_object_deps has already sorted l_initfini for us. */
|
|
unsigned int nmaps = 0;
|
|
unsigned int j = 0;
|
|
struct link_map *l = new->l_initfini[0];
|
|
@@ -639,7 +640,6 @@ dl_open_worker (void *a)
|
|
l = new->l_initfini[++j];
|
|
}
|
|
while (l != NULL);
|
|
- _dl_sort_maps (maps, nmaps, NULL, false);
|
|
|
|
int relocation_in_progress = 0;
|
|
|