Revert "ARM: 8846/1: warn if divided syntax assembler is used"
authorRussell King <rmk+kernel@armlinux.org.uk>
Wed, 15 May 2019 22:17:17 +0000 (23:17 +0100)
committerRussell King <rmk+kernel@armlinux.org.uk>
Wed, 15 May 2019 22:17:17 +0000 (23:17 +0100)
This reverts commit e8c24bbda7d5eba6df5ca45e5462fd3f96b8f217.

GCC 4.7, which is still permitted, emits code using the original
syntax.  This means we end up with lots of assembler warnings when
building with a currently-supported version of gcc.

Revert the commit (with fixups to keep the follow-on -mauto-it
change) to avoid these warnings.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
arch/arm/Makefile

index 1f7bbde..bdb40d5 100644 (file)
@@ -112,15 +112,18 @@ ifeq ($(CONFIG_ARM_UNWIND),y)
 CFLAGS_ABI     +=-funwind-tables
 endif
 
+# Accept old syntax despite ".syntax unified"
+AFLAGS_NOWARN  :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
+
 ifeq ($(CONFIG_THUMB2_KERNEL),y)
-CFLAGS_ISA     :=-mthumb -Wa,-mimplicit-it=always
+CFLAGS_ISA     :=-mthumb -Wa,-mimplicit-it=always $(AFLAGS_NOWARN)
 AFLAGS_ISA     :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
 # Work around buggy relocation from gas if requested:
 ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
 KBUILD_CFLAGS_MODULE   +=-fno-optimize-sibling-calls
 endif
 else
-CFLAGS_ISA     :=$(call cc-option,-marm,)
+CFLAGS_ISA     :=$(call cc-option,-marm,) $(AFLAGS_NOWARN)
 AFLAGS_ISA     :=$(CFLAGS_ISA)
 endif