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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/Makefile | |
| 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/Makefile')
| -rw-r--r-- | sysdeps/x86_64/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile index 78fdb04fcb..57cd88432a 100644 --- a/sysdeps/x86_64/Makefile +++ b/sysdeps/x86_64/Makefile @@ -19,6 +19,10 @@ ifeq ($(subdir),elf) sysdep-dl-routines += tlsdesc dl-tlsdesc sysdep_routines += tlsdesc dl-tlsdesc sysdep-rtld-routines += tlsdesc dl-tlsdesc + +tests: $(objpfx)tst-xmmymm.out +$(objpfx)tst-xmmymm.out: ../sysdeps/x86_64/tst-xmmymm.sh $(objpfx)ld.so + $(SHELL) -e $< $(objpfx) > $@ endif ifeq ($(subdir),csu) |