diff options
| 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 /nptl/ChangeLog | |
| parent | 9655389317c92e5935c47d90c0ba48ca54bd245e (diff) | |
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 'nptl/ChangeLog')
| -rw-r--r-- | nptl/ChangeLog | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 8f37da7936..24fd28a0dc 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,11 @@ +2009-07-29 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/x86_64/tls.h (tcbhead_t): Add room for SSE registers the + dynamic linker might have to save. Define RTLD_CHECK_FOREIGN_CALL, + RTLD_ENABLE_FOREIGN_CALL, RTLD_PREPARE_FOREIGN_CALL, and + RTLD_FINALIZE_FOREIGN_CALL. Pretty printing. + * sysdeps/x86_64/tcb-offsets.sym: Add RTLD_SAVESPACE_SSE. + 2009-07-28 Ulrich Drepper <drepper@redhat.com> * pthread_mutex_lock.c [NO_INCR] (__pthread_mutex_cond_lock_adjust): |