Merge "Remove "-mstackrealign" option from all x86 builds."

core/combo/HOST_linux-x86.mk

@@ -28,7 +28,7 @@ $(combo_2nd_arch_prefix)HOST_AR  := $($(combo_2nd_arch_prefix)HOST_TOOLCHAIN_PRE
 $(combo_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.8/
 
 # We expect SSE3 floating point math.
-$(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -mstackrealign -msse3 -mfpmath=sse -m32 -Wa,--noexecstack -march=prescott
+$(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -msse3 -mfpmath=sse -m32 -Wa,--noexecstack -march=prescott
 $(combo_2nd_arch_prefix)HOST_GLOBAL_LDFLAGS += -m32 -Wl,-z,noexecstack
 
 ifneq ($(strip $(BUILD_HOST_static)),)

core/combo/arch/x86/haswell.mk

@@ -13,6 +13,5 @@ ARCH_X86_HAVE_MOVBE  := true
 # CFLAGS for this arch
 arch_variant_cflags := \
 	-march=core-avx2 \
-	-mstackrealign \
 	-mfpmath=sse \
 

core/combo/arch/x86/ivybridge.mk

@@ -13,6 +13,5 @@ ARCH_X86_HAVE_MOVBE  := false
 # CFLAGS for this arch
 arch_variant_cflags := \
 	-march=core-avx-i \
-	-mstackrealign \
 	-mfpmath=sse \
 

core/combo/arch/x86/sandybridge.mk

@@ -13,6 +13,5 @@ ARCH_X86_HAVE_MOVBE  := false
 # CFLAGS for this arch
 arch_variant_cflags := \
 	-march=corei7-avx \
-	-mstackrealign \
 	-mfpmath=sse \
 

core/combo/arch/x86/silvermont.mk

@@ -15,6 +15,5 @@ ARCH_X86_HAVE_MOVBE  := true
 # CFLAGS for this arch
 arch_variant_cflags := \
 	-march=slm \
-	-mstackrealign \
 	-mfpmath=sse \
 

core/combo/arch/x86/x86-atom.mk

@@ -11,6 +11,5 @@ ARCH_X86_HAVE_POPCNT := false   # popcnt is not supported by current Atom CPUs
 # CFLAGS for this arch
 arch_variant_cflags := \
 	-march=atom \
-	-mstackrealign \
 	-mfpmath=sse \