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SubjectRe: [PATCH 2/3] objtool: Support HOSTCFLAGS and HOSTLDFLAGS
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On 04/04/2018 09:42 PM, Masahiro Yamada wrote:
> 2018-03-29 9:48 GMT+09:00 Laura Abbott <labbott@redhat.com>:
>> It may be useful to compile host programs with different flags (e.g.
>> hardening). Ensure that objtool picks up the appropriate flags.
>>
>> Signed-off-by: Laura Abbott <labbott@redhat.com>
>> ---
>
>
> I saw some similar patches before.
>
> I thought they are fixing this way
> https://patchwork.kernel.org/patch/10251259/
>
> but, I am not tacking the progress.
>
>
>

That looks like a different issue since it's still not going to
pick up the HOST{C,LD}FLAGS.

>
>> tools/objtool/Makefile | 5 +++--
>> 1 file changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
>> index e6acc281dd37..0ff3bcac1ca9 100644
>> --- a/tools/objtool/Makefile
>> +++ b/tools/objtool/Makefile
>> @@ -31,8 +31,9 @@ INCLUDES := -I$(srctree)/tools/include \
>> -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
>> -I$(srctree)/tools/objtool/arch/$(ARCH)/include
>> WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed
>> -CFLAGS += -Wall -Werror $(WARNINGS) -fomit-frame-pointer -O2 -g $(INCLUDES)
>> -LDFLAGS += -lelf $(LIBSUBCMD)
>> +CFLAGS += -Wall -Werror $(WARNINGS) $(HOSTCFLAGS) -fomit-frame-pointer -O2 -g \
>> + $(INCLUDES)
>> +LDFLAGS += -lelf $(LIBSUBCMD) $(HOSTLDFLAGS)
>>
>> # Allow old libelf to be used:
>> elfshdr := $(shell echo '\#include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)
>> --
>> 2.16.2
>>
>> --
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>
>
>

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