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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/multiarch | |
| parent | dc8e5eb6edc936647b8135e7176df5455e5ff112 (diff) | |
| download | glibc-16d2ea4c821502948d193a152c8b151f5497a0d3.tar.gz glibc-16d2ea4c821502948d193a152c8b151f5497a0d3.tar.xz 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 'sysdeps/x86_64/multiarch')
| -rw-r--r-- | sysdeps/x86_64/multiarch/rtld-rawmemchr.c | 1 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/rtld-strlen.S | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/rtld-rawmemchr.c b/sysdeps/x86_64/multiarch/rtld-rawmemchr.c new file mode 100644 index 0000000000..53a90675ab --- /dev/null +++ b/sysdeps/x86_64/multiarch/rtld-rawmemchr.c @@ -0,0 +1 @@ +#include "../rtld-rawmemchr.c" diff --git a/sysdeps/x86_64/multiarch/rtld-strlen.S b/sysdeps/x86_64/multiarch/rtld-strlen.S new file mode 100644 index 0000000000..596e0549ea --- /dev/null +++ b/sysdeps/x86_64/multiarch/rtld-strlen.S @@ -0,0 +1 @@ +#include "../rtld-strlen.S" |