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| 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 /sysdeps/x86_64/rtld-memcmp.c | |
| parent | dc8e5eb6edc936647b8135e7176df5455e5ff112 (diff) | |
| download | glibc-16d2ea4c821502948d193a152c8b151f5497a0d3.tar.gz | |
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 'sysdeps/x86_64/rtld-memcmp.c')
| -rw-r--r-- | sysdeps/x86_64/rtld-memcmp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/x86_64/rtld-memcmp.c b/sysdeps/x86_64/rtld-memcmp.c new file mode 100644 index 0000000000..2ee40328b8 --- /dev/null +++ b/sysdeps/x86_64/rtld-memcmp.c @@ -0,0 +1 @@ +#include <string/memcmp.c> |