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| author | H.J. Lu <hjl.tools@gmail.com> | 2015-07-28 18:56:18 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-08-25 04:30:27 -0700 |
| commit | 462932676678fbf82a915a280f9429825975eeca (patch) | |
| tree | 4657a2330359137ea3007022852d8121a44fecf9 | |
| parent | 6e9d18d34bf7e0fc0c29e5b60d0b48ee477510e2 (diff) | |
| download | glibc-462932676678fbf82a915a280f9429825975eeca.tar.gz glibc-462932676678fbf82a915a280f9429825975eeca.tar.xz glibc-462932676678fbf82a915a280f9429825975eeca.zip | |
Don't disable SSE in x86-64 ld.so
Since ld.so preserves vector registers now, we can use SSE in ld.so. * sysdeps/i386/Makefile [$(subdir) == elf] (CFLAGS-.os): Add -mno-sse -mno-mmx for $(all-rtld-routines). [$(subdir) == elf] (tests-special): Add $(objpfx)tst-ld-sse-use.out. [$(subdir) == elf] ($(objpfx)tst-ld-sse-use.out): New rule. * sysdeps/x86/Makefile [$(subdir) == elf] (CFLAGS-.os): Removed. [$(subdir) == elf] (tests-special): Likewise. [$(subdir) == elf] ($(objpfx)tst-ld-sse-use.out): Likewise. * sysdeps/x86_64/Makefile [$(subdir) == elf] (CFLAGS-.os): Add -mno-mmx for $(all-rtld-routines).
| -rw-r--r-- | sysdeps/i386/Makefile | 11 | ||||
| -rw-r--r-- | sysdeps/x86/Makefile | 11 | ||||
| -rw-r--r-- | sysdeps/x86_64/Makefile | 3 |
3 files changed, 14 insertions, 11 deletions
diff --git a/sysdeps/i386/Makefile b/sysdeps/i386/Makefile index 717d8e7454..769c3d0a82 100644 --- a/sysdeps/i386/Makefile +++ b/sysdeps/i386/Makefile @@ -83,3 +83,14 @@ endif ifeq ($(subdir),csu) gen-as-const-headers += tlsdesc.sym endif + +ifeq ($(subdir),elf) +CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\ + -mno-sse -mno-mmx) + +tests-special += $(objpfx)tst-ld-sse-use.out +$(objpfx)tst-ld-sse-use.out: ../sysdeps/x86/tst-ld-sse-use.sh $(objpfx)ld.so + @echo "Checking ld.so for SSE register use. This will take a few seconds..." + $(BASH) $< $(objpfx) '$(NM)' '$(OBJDUMP)' '$(READELF)' > $@; \ + $(evaluate-test) +endif diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile index c262fdf487..0de4f42168 100644 --- a/sysdeps/x86/Makefile +++ b/sysdeps/x86/Makefile @@ -1,14 +1,3 @@ -ifeq ($(subdir),elf) -CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\ - -mno-sse -mno-mmx) - -tests-special += $(objpfx)tst-ld-sse-use.out -$(objpfx)tst-ld-sse-use.out: ../sysdeps/x86/tst-ld-sse-use.sh $(objpfx)ld.so - @echo "Checking ld.so for SSE register use. This will take a few seconds..." - $(BASH) $< $(objpfx) '$(NM)' '$(OBJDUMP)' '$(READELF)' > $@; \ - $(evaluate-test) -endif - ifeq ($(subdir),csu) gen-as-const-headers += cpu-features-offsets.sym rtld-global-offsets.sym endif diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile index e50bcadf51..7bcfd87781 100644 --- a/sysdeps/x86_64/Makefile +++ b/sysdeps/x86_64/Makefile @@ -19,6 +19,9 @@ gen-as-const-headers += locale-defines.sym endif ifeq ($(subdir),elf) +CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\ + -mno-mmx) + sysdep-dl-routines += tlsdesc dl-tlsdesc tests += ifuncmain8 |