diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc
index 30f92434bb..6c7008ca1a 100644
--- a/src/arch/x86/Makefile.inc
+++ b/src/arch/x86/Makefile.inc
@@ -28,7 +28,7 @@ subdirs-y += lib
 subdirs-y += smp
 
 ifeq ($(CONFIG_COMPILER_GCC),y)
-DISASSEMBLY=-Wa,-acdlns
+DISASSEMBLY=-Wa,-acdlns $(CFLAGS_x86_32)
 else
 DISASSEMBLY=
 endif
diff --git a/toolchain.inc b/toolchain.inc
index b615bce7a4..568b3d639a 100644
--- a/toolchain.inc
+++ b/toolchain.inc
@@ -25,7 +25,7 @@ ARCHDIR-i386    := x86
 ARCHDIR-x86_32  := x86
 ARCHDIR-armv7   := armv7
 
-CFLAGS_armv7 = \
+CFLAGS_armv7 += \
 	-ffixed-r8\
 	-march=armv7-a\
 	-marm\
@@ -35,7 +35,7 @@ CFLAGS_armv7 = \
 
 toolchain_to_dir = \
 	$(foreach arch,$(ARCH_SUPPORTED),\
-	$(eval CPPFLAGS_$(arch) = \
+	$(eval CPPFLAGS_$(arch) += \
 	-Isrc/arch/$(ARCHDIR-$(arch))/include))
 
 # set_stage_toolchain: Decides the toolchain to be used by every stage
diff --git a/util/xcompile/xcompile b/util/xcompile/xcompile
index b342de308f..d133bd2a59 100644
--- a/util/xcompile/xcompile
+++ b/util/xcompile/xcompile
@@ -147,7 +147,8 @@ detect_special_flags() {
 report_arch_toolchain() {
 	cat <<EOF
 # elf${TWIDTH}-${TBFDARCH} toolchain (${GCCPREFIX}gcc)
-CC_${TARCH}:=${GCCPREFIX}gcc ${CFLAGS}
+CC_${TARCH}:=${GCCPREFIX}gcc
+CFLAGS_${TARCH}:=${CFLAGS}
 CPP_${TARCH}:=${GCCPREFIX}cpp
 AS_${TARCH}:=${GCCPREFIX}as ${ASFLAGS}
 LD_${TARCH}:=${GCCPREFIX}ld${LINKER_SUFFIX} ${LDFLAGS}