Messages in this thread Patch in this message | | | Date | Fri, 28 Jul 2017 00:38:17 -0700 | From | tip-bot for Josh Poimboeuf <> | Subject | [tip:x86/asm] objtool: Disable GCC '-Wpacked' warnings |
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Commit-ID: 21ec3bf6aeb4033210747837421e63286ba32646 Gitweb: http://git.kernel.org/tip/21ec3bf6aeb4033210747837421e63286ba32646 Author: Josh Poimboeuf <jpoimboe@redhat.com> AuthorDate: Thu, 27 Jul 2017 15:56:56 -0500 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Fri, 28 Jul 2017 08:33:32 +0200
objtool: Disable GCC '-Wpacked' warnings
Objtool is failing to build with GCC 4.4.7 due to the following warnings:
cc1: warnings being treated as errors In file included from orc.h:21, from orc_gen.c:21: orc_types.h:86: error: packed attribute is unnecessary for ‘sp_offset’ orc_types.h:87: error: packed attribute is unnecessary for ‘bp_offset’ orc_types.h:88: error: packed attribute is unnecessary for ‘sp_reg’
I suspect those warnings are a GCC bug. But -Wpacked isn't very useful anyway, so just disable it.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: 627fce14809b ("objtool: Add ORC unwind table generation") Link: http://lkml.kernel.org/r/76d85d7b5a87566465095c500bce222ff5d7b146.1501188854.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> --- tools/objtool/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile index 3a6425f..6976c73 100644 --- a/tools/objtool/Makefile +++ b/tools/objtool/Makefile @@ -25,7 +25,8 @@ OBJTOOL_IN := $(OBJTOOL)-in.o all: $(OBJTOOL) INCLUDES := -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi -CFLAGS += -Wall -Werror $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -fomit-frame-pointer -O2 -g $(INCLUDES) +WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed +CFLAGS += -Wall -Werror $(WARNINGS) -fomit-frame-pointer -O2 -g $(INCLUDES) LDFLAGS += -lelf $(LIBSUBCMD) # Allow old libelf to be used:
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