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From: Laura Abbott <labbott@redhat.com>
To: Josh Poimboeuf <jpoimboe@redhat.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Laura Abbott <labbott@redhat.com>,
	linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org
Subject: [PATCHv2] objtool: Support HOSTCFLAGS and HOSTLDFLAGS
Date: Wed, 11 Apr 2018 13:04:32 -0700	[thread overview]
Message-ID: <20180411200432.3493-1-labbott@redhat.com> (raw)

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>
---
v2: Drop several flags that are already defined in HOSTCFLAGS
---
 tools/objtool/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index e6acc281dd37..7df979ae4573 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -31,8 +31,8 @@ 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   += -Werror $(WARNINGS) $(HOSTCFLAGS) -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)
-- 
2.14.3


             reply	other threads:[~2018-04-11 20:04 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-11 20:04 Laura Abbott [this message]
2018-04-12 13:18 ` [PATCHv2] objtool: Support HOSTCFLAGS and HOSTLDFLAGS Josh Poimboeuf

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