configure: Add -mstackrealign flags to CFLAGS on OS/2

Many codes require -mstackrealign flags. Although -mstackrealign has
been already added to CFLAGS of some modules, SIGSEGV occurs in other
modules than those modules.

The best way may be to find causes and to fix them. However, we
cannot know those causes until SIGSEGV occur really. In addition, if
SIGSEGV occurs in other programs, it will be fatal.

So adding -mstackrealign flags to CFLAGS unconditionally is
reasonable.

Change-Id: I999ef597a6afe97f5e7cc7bffaa866537c3eedd2

diff --git a/build/make/Makefile b/build/make/Makefile
index 3081a92680316a3227fa60f6145c8d059c2bc995..3e8c02490d19d44f1934193e784632ad4bef7582 100644 (file)
--- a/build/make/Makefile
+++ b/build/make/Makefile
@@ -119,29 +119,25 @@ utiltest:
 test-no-data-check::
 exampletest-no-data-check utiltest-no-data-check:
 
-# Add compiler flags for intrinsic files
+# Force to realign stack always on OS/2
 ifeq ($(TOOLCHAIN), x86-os2-gcc)
-STACKREALIGN=-mstackrealign
-else
-STACKREALIGN=
+CFLAGS += -mstackrealign
 endif
 
 $(BUILD_PFX)%_mmx.c.d: CFLAGS += -mmmx
 $(BUILD_PFX)%_mmx.c.o: CFLAGS += -mmmx
-$(BUILD_PFX)%_sse2.c.d: CFLAGS += -msse2 $(STACKREALIGN)
-$(BUILD_PFX)%_sse2.c.o: CFLAGS += -msse2 $(STACKREALIGN)
-$(BUILD_PFX)%_sse3.c.d: CFLAGS += -msse3 $(STACKREALIGN)
-$(BUILD_PFX)%_sse3.c.o: CFLAGS += -msse3 $(STACKREALIGN)
-$(BUILD_PFX)%_ssse3.c.d: CFLAGS += -mssse3 $(STACKREALIGN)
-$(BUILD_PFX)%_ssse3.c.o: CFLAGS += -mssse3 $(STACKREALIGN)
-$(BUILD_PFX)%_sse4.c.d: CFLAGS += -msse4.1 $(STACKREALIGN)
-$(BUILD_PFX)%_sse4.c.o: CFLAGS += -msse4.1 $(STACKREALIGN)
-$(BUILD_PFX)%_avx.c.d: CFLAGS += -mavx $(STACKREALIGN)
-$(BUILD_PFX)%_avx.c.o: CFLAGS += -mavx $(STACKREALIGN)
-$(BUILD_PFX)%_avx2.c.d: CFLAGS += -mavx2 $(STACKREALIGN)
-$(BUILD_PFX)%_avx2.c.o: CFLAGS += -mavx2 $(STACKREALIGN)
-$(BUILD_PFX)%vp9_reconintra.c.d: CFLAGS += $(STACKREALIGN)
-$(BUILD_PFX)%vp9_reconintra.c.o: CFLAGS += $(STACKREALIGN)
+$(BUILD_PFX)%_sse2.c.d: CFLAGS += -msse2
+$(BUILD_PFX)%_sse2.c.o: CFLAGS += -msse2
+$(BUILD_PFX)%_sse3.c.d: CFLAGS += -msse3
+$(BUILD_PFX)%_sse3.c.o: CFLAGS += -msse3
+$(BUILD_PFX)%_ssse3.c.d: CFLAGS += -mssse3
+$(BUILD_PFX)%_ssse3.c.o: CFLAGS += -mssse3
+$(BUILD_PFX)%_sse4.c.d: CFLAGS += -msse4.1
+$(BUILD_PFX)%_sse4.c.o: CFLAGS += -msse4.1
+$(BUILD_PFX)%_avx.c.d: CFLAGS += -mavx
+$(BUILD_PFX)%_avx.c.o: CFLAGS += -mavx
+$(BUILD_PFX)%_avx2.c.d: CFLAGS += -mavx2
+$(BUILD_PFX)%_avx2.c.o: CFLAGS += -mavx2
 
 $(BUILD_PFX)%.c.d: %.c
        $(if $(quiet),@echo "    [DEP] $@")