objtool: Fix cross-build

CVE-2017-5754

Stephen Rothwell reported this cross-compilation build failure:

| In file included from orc_dump.c:19:0:
| orc.h:21:10: fatal error: asm/orc_types.h: No such file or directory
| ...

Caused by:

  6a77cff819ae ("objtool: Move synced files to their original relative locations")

Use the proper arch header files location, not the host-arch location.

Bisected-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linux-Next Mailing List <linux-next@vger.kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20171108030152.bd76eahiwjwjt3kp@treble
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(backported from commit 26bda786fb129698d96c9bc6d243f7a3cd3fc668)
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index 90b0241f3ccc1dd91119620e17f050fa1b471a7d..847e99aa54ea461378d9091b39f3143fe783ffc7 100644 (file)
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -26,7 +26,7 @@ all: $(OBJTOOL)
 
 INCLUDES := -I$(srctree)/tools/include \
            -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
-           -I$(srctree)/tools/objtool/arch/$(HOSTARCH)/include
+           -I$(srctree)/tools/objtool/arch/$(ARCH)/include
 CFLAGS   += -Wall -Werror $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -fomit-frame-pointer -O2 -g $(INCLUDES)
 LDFLAGS  += -lelf $(LIBSUBCMD)