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authorMaciej W. Rozycki <macro@codesourcery.com>2014-01-31 17:51:31 +0000
committerMaciej W. Rozycki <macro@codesourcery.com>2014-01-31 17:51:31 +0000
commit0d23a5c1b1908700d25b7e3c6cece148e19dded4 (patch)
tree68076816a4d5e06e01bdc0efdb433f613bb61e62 /elf/dl-support.c
parent0037bb6010522e20dde2da7922071d5cb53f67eb (diff)
downloadglibc-0d23a5c1b1908700d25b7e3c6cece148e19dded4.tar.gz
[BZ #16046] Static dlopen correction fallout fixes.
Fixes to address issues from BZ #15022 resolution, as follows: * TLS updates to csu/libc-tls.c -- we now have a proper main map, so there's no longer a need to create a separate fake one to keep TLS structures, * random updates to elf/dl-close.c -- LM_ID_BASE is now a valid name space ID for static executables as well, so assert that we don't unload the main map. Similarly dl_nns isn't supposed to be 0 for static executables anymore, * actual BZ #16046 fix to elf/dl-iteratephdr.c -- the dl_iterate_phdr special function for static executables isn't needed anymore, provided that l_phdr and l_phnum members of the main map have been properly initialized (done in _dl_non_dynamic_init in elf/dl-support.c now), * ld.so.cache loader update to elf/dl-load.c -- GL(dl_ns)[LM_ID_BASE]._ns_loaded is now always initialized in static executables so can become the fallback loader map to check for DF_1_NODEFLIB, provided that the l_flags_1 member of the main map has been properly initialized (done in elf/dl-support.c now); this also ensures previous semantics elsewhere in elf/dl-load.c, * matching updates to elf/dl-support.c -- to complement the two fixes above.
Diffstat (limited to 'elf/dl-support.c')
-rw-r--r--elf/dl-support.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/elf/dl-support.c b/elf/dl-support.c
index c0d1e4c009..e435436c31 100644
--- a/elf/dl-support.c
+++ b/elf/dl-support.c
@@ -91,6 +91,7 @@ static struct link_map _dl_main_map =
.l_scope = _dl_main_map.l_scope_mem,
.l_local_scope = { &_dl_main_map.l_searchlist },
.l_used = 1,
+ .l_flags_1 = DF_1_NODEFLIB,
.l_tls_offset = NO_TLS_OFFSET,
.l_serial = 1,
};
@@ -311,6 +312,8 @@ internal_function
_dl_non_dynamic_init (void)
{
_dl_main_map.l_origin = _dl_get_origin ();
+ _dl_main_map.l_phdr = GL(dl_phdr);
+ _dl_main_map.l_phnum = GL(dl_phnum);
if (HP_TIMING_AVAIL)
HP_TIMING_NOW (_dl_cpuclock_offset);