path: root/tools/scripts
diff options
authorJosh Poimboeuf <jpoimboe@redhat.com>2016-07-22 14:19:20 -0500
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-07-22 16:37:44 -0300
commit60cbdf5d051d4f4db23d267d511ca241d4be7c0d (patch)
tree9efe572143b47a35cee1fe8bf0d20188d88c7237 /tools/scripts
parentobjtool: Always use host headers (diff)
tools build: Fix objtool build with ARCH=x86_64
The objtool build fails in a cross-compiled environment on a non-x86 host with "ARCH=x86_64": tools/objtool/objtool-in.o: In function `decode_instructions': tools/objtool/builtin-check.c:276: undefined reference to `arch_decode_instruction' We could override the ARCH environment variable and change it back to x86, similar to what the objtool Makefile was doing before; but it's tricky to override environment variables consistently. Instead, take a similar approach used by the Linux top-level Makefile and introduce a SRCARCH Makefile variable which evaluates to "x86" when ARCH is either "x86_64" or "x86". Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20160722191920.ej62fnspnqurbaa7@treble Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/scripts')
1 files changed, 32 insertions, 0 deletions
diff --git a/tools/scripts/Makefile.arch b/tools/scripts/Makefile.arch
index 887321ce5827..ad85b921a607 100644
--- a/tools/scripts/Makefile.arch
+++ b/tools/scripts/Makefile.arch
@@ -5,10 +5,42 @@ HOSTARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
-e s/tile.*/tile/ )
ifndef ARCH
+# Additional ARCH settings for x86
+ifeq ($(ARCH),i386)
+ SRCARCH := x86
+ifeq ($(ARCH),x86_64)
+ SRCARCH := x86
+# Additional ARCH settings for sparc
+ifeq ($(ARCH),sparc32)
+ SRCARCH := sparc
+ifeq ($(ARCH),sparc64)
+ SRCARCH := sparc
+# Additional ARCH settings for sh
+ifeq ($(ARCH),sh64)
+ SRCARCH := sh
+# Additional ARCH settings for tile
+ifeq ($(ARCH),tilepro)
+ SRCARCH := tile
+ifeq ($(ARCH),tilegx)
+ SRCARCH := tile
LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
ifeq ($(LP64), 1)
IS_64_BIT := 1