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| author |   David S. Miller <davem@davemloft.net> | 2018-10-21 22:22:54 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-10-22 15:56:11 -0700 |
| commit | 5615edcca99a0ceb47940fb8e89d1f72bc35398b (patch) | |
| tree | 9062153e55e4292f810eb234cb06502b5f331e62 /arch/sparc | |
| parent | sparc: Set DISABLE_BRANCH_PROFILING in VDSO CFLAGS. (diff) | |
| download | linux-dev-5615edcca99a0ceb47940fb8e89d1f72bc35398b.tar.xz linux-dev-5615edcca99a0ceb47940fb8e89d1f72bc35398b.zip | |
sparc: Improve VDSO CFLAGS.
Do not set any special register usage options, use the default which
is exactly what we should use for userspace code.
Make sure we remove the gcc plugin options from the 64-bit build.
The 32-bit cflags got it right already.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/vdso/Makefile | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile index 7ea03dd2bd62..3b0d287311c2 100644 --- a/arch/sparc/vdso/Makefile +++ b/arch/sparc/vdso/Makefile @@ -54,14 +54,14 @@ $(obj)/vdso-image-%.c: $(obj)/vdso%.so.dbg $(obj)/vdso%.so $(obj)/vdso2c FORCE # Don't omit frame pointers for ease of userspace debugging, but do # optimize sibling calls. # -CFL := $(PROFILING) -mcmodel=medlow -fPIC -O2 -fasynchronous-unwind-tables \ - -m64 -ffixed-g2 -ffixed-g3 -fcall-used-g4 -fcall-used-g5 -ffixed-g6 \ - -ffixed-g7 $(filter -g%,$(KBUILD_CFLAGS)) \ - $(call cc-option, -fno-stack-protector) -fno-omit-frame-pointer \ - -foptimize-sibling-calls \ +CFL := $(PROFILING) -mcmodel=medlow -fPIC -O2 -fasynchronous-unwind-tables -m64 \ + $(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \ + -fno-omit-frame-pointer -foptimize-sibling-calls \ -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO -$(vobjs): KBUILD_CFLAGS += $(CFL) +SPARC_REG_CFLAGS = -ffixed-g4 -ffixed-g5 -fcall-used-g5 -fcall-used-g7 + +$(vobjs): KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS) $(SPARC_REG_CFLAGS),$(KBUILD_CFLAGS)) $(CFL) # # vDSO code runs in userspace and -pg doesn't help with profiling anyway. @@ -92,7 +92,8 @@ KBUILD_CFLAGS_32 := $(filter-out -m64,$(KBUILD_CFLAGS)) KBUILD_CFLAGS_32 := $(filter-out -mcmodel=medlow,$(KBUILD_CFLAGS_32)) KBUILD_CFLAGS_32 := $(filter-out -fno-pic,$(KBUILD_CFLAGS_32)) KBUILD_CFLAGS_32 := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS_32)) -KBUILD_CFLAGS_32 += -m32 -msoft-float -fpic -mno-app-regs -ffixed-g7 +KBUILD_CFLAGS_32 := $(filter-out $(SPARC_REG_CFLAGS),$(KBUILD_CFLAGS_32)) +KBUILD_CFLAGS_32 += -m32 -msoft-float -fpic KBUILD_CFLAGS_32 += $(call cc-option, -fno-stack-protector) KBUILD_CFLAGS_32 += $(call cc-option, -foptimize-sibling-calls) KBUILD_CFLAGS_32 += -fno-omit-frame-pointer |