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| author | Ulrich Drepper <drepper@redhat.com> | 2009-07-29 08:33:03 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-07-29 08:33:03 -0700 |
| commit | b48a267b8fbb885191a04cffdb4050a4d4c8a20b (patch) | |
| tree | 1a517e3273ee5785b44a9bd5b9aec9ae62b95ac3 /elf/dl-runtime.c | |
| parent | 9655389317c92e5935c47d90c0ba48ca54bd245e (diff) | |
| download | glibc-b48a267b8fbb885191a04cffdb4050a4d4c8a20b.zip glibc-b48a267b8fbb885191a04cffdb4050a4d4c8a20b.tar.gz glibc-b48a267b8fbb885191a04cffdb4050a4d4c8a20b.tar.bz2 | |
Preserve SSE registers in runtime relocations on x86-64.
SSE registers are used for passing parameters and must be preserved
in runtime relocations. This is inside ld.so enforced through the
tests in tst-xmmymm.sh. But the malloc routines used after startup
come from libc.so and can be arbitrarily complex. It's overkill
to save the SSE registers all the time because of that. These calls
are rare. Instead we save them on demand. The new infrastructure
put in place in this patch makes this possible and efficient.
Diffstat (limited to 'elf/dl-runtime.c')
| -rw-r--r-- | elf/dl-runtime.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/elf/dl-runtime.c b/elf/dl-runtime.c index 0eb7d4e..a52120d 100644 --- a/elf/dl-runtime.c +++ b/elf/dl-runtime.c @@ -111,6 +111,10 @@ _dl_fixup ( flags |= DL_LOOKUP_GSCOPE_LOCK; } +#ifdef RTLD_ENABLE_FOREIGN_CALL + RTLD_ENABLE_FOREIGN_CALL; +#endif + result = _dl_lookup_symbol_x (strtab + sym->st_name, l, &sym, l->l_scope, version, ELF_RTYPE_CLASS_PLT, flags, NULL); @@ -118,6 +122,10 @@ _dl_fixup ( if (!RTLD_SINGLE_THREAD_P) THREAD_GSCOPE_RESET_FLAG (); +#ifdef RTLD_FINALIZE_FOREIGN_CALL + RTLD_FINALIZE_FOREIGN_CALL; +#endif + /* Currently result contains the base load address (or link map) of the object that defines sym. Now add in the symbol offset. */ |