[PATCH 2/3] objtool: Support HOSTCFLAGS and HOSTLDFLAGS

From: Laura Abbott
Date: Wed Mar 28 2018 - 20:48:48 EST


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@xxxxxxxxxx>
---
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