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| author | H.J. Lu <hjl.tools@gmail.com> | 2015-08-26 07:55:42 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-08-26 07:55:42 -0700 |
| commit | 38d22f9f48a84b441c5777aff103f5b980243b5f (patch) | |
| tree | dcdb83615ee08ced45c18c00c23edca112ed1cb1 /sysdeps/x86_64 | |
| parent | b022830bebc23456fc40825c6b5507bc0f52381f (diff) | |
| download | glibc-38d22f9f48a84b441c5777aff103f5b980243b5f.tar.gz glibc-38d22f9f48a84b441c5777aff103f5b980243b5f.tar.xz glibc-38d22f9f48a84b441c5777aff103f5b980243b5f.zip | |
Don't disable SSE in x86-64 ld.so
Since x86-64 ld.so preserves vector registers now, we can use SSE in x86-64 ld.so. We should run tst-ld-sse-use.sh only on i386. * sysdeps/x86/Makefile [$(subdir) == elf] (CFLAGS-.os, tests-special, $(objpfx)tst-ld-sse-use.out): Moved to ... * sysdeps/i386/Makefile [$(subdir) == elf] (CFLAGS-.os, tests-special, $(objpfx)tst-ld-sse-use.out): Here. Update comments. * sysdeps/x86_64/Makefile [$(subdir) == elf] (CFLAGS-.os): Add -mno-mmx for $(all-rtld-routines). * sysdeps/x86/tst-ld-sse-use.sh: Moved to ... * sysdeps/i386/tst-ld-sse-use.sh: Here. Replace x86-64 with i386.
Diffstat (limited to 'sysdeps/x86_64')
| -rw-r--r-- | sysdeps/x86_64/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile index e50bcadf51..6c283187a8 100644 --- a/sysdeps/x86_64/Makefile +++ b/sysdeps/x86_64/Makefile @@ -19,6 +19,10 @@ gen-as-const-headers += locale-defines.sym endif ifeq ($(subdir),elf) +# There is no good reason to use MMX in x86-64 ld.so with GCC. +CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\ + -mno-mmx) + sysdep-dl-routines += tlsdesc dl-tlsdesc tests += ifuncmain8 |