diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2009-07-26 16:10:00 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-07-26 16:10:00 -0700 |
| commit | 16d2ea4c821502948d193a152c8b151f5497a0d3 (patch) | |
| tree | b2e680691addcd8cbfc8f4be5d0d6d7ca27baf49 /ChangeLog | |
| parent | dc8e5eb6edc936647b8135e7176df5455e5ff112 (diff) | |
| download | glibc-16d2ea4c821502948d193a152c8b151f5497a0d3.tar glibc-16d2ea4c821502948d193a152c8b151f5497a0d3.tar.gz glibc-16d2ea4c821502948d193a152c8b151f5497a0d3.tar.bz2 glibc-16d2ea4c821502948d193a152c8b151f5497a0d3.zip | |
Make sure no code in ld.so uses xmm/ymm registers on x86-64.
This patch introduces a test to make sure no function modifies the
xmm/ymm registers. With the exception of the auditing functions.
The test is probably too pessimistic. All code linked into ld.so
is checked. Perhaps at some point the callgraph starting from
_dl_fixup and _dl_profile_fixup is checked and we can start using
faster SSE-using functions in parts of ld.so.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 14 |
1 files changed, 14 insertions, 0 deletions
@@ -1,3 +1,17 @@ +2009-07-26 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/x86_64/tst-xmmymm.sh: New file. Check whether any of the + functions used in ld.so modify xmm/ymm registers. + * sysdeps/x86_64/Makefile: Hook new test up. + * sysdeps/x86_64/rtld-memchr.c: New file. + * sysdeps/x86_64/rtld-memcmp.c: New file. + * sysdeps/x86_64/rtld-rawmemchr.c: New file. + * sysdeps/x86_64/rtld-strchr.S: New file. + * sysdeps/x86_64/rtld-strcmp.S: New file. + * sysdeps/x86_64/rtld-strlen.S: New file. + * sysdeps/x86_64/multiarch/rtld-rawmemchr.c: New file. + * sysdeps/x86_64/multiarch/rtld-strlen.S: New file. + 2009-07-26 H.J. Lu <hongjiu.lu@intel.com> * sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Remove |