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| author | Rolf Eike Beer <eb@emlix.com> | 2019-03-26 20:48:39 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-03-28 15:32:01 +0300 |
| commit | 056d28d135bca0b1d0908990338e00e9dadaf057 (patch) | |
| tree | e4c4bb1e57d8b4f898dedcb277441ff2555a0e65 /tools/objtool/Makefile | |
| parent | cfa637cb20e96fe8cf44b867a7d7c34649cbf8eb (diff) | |
| download | linux-056d28d135bca0b1d0908990338e00e9dadaf057.tar.xz | |
objtool: Query pkg-config for libelf location
If it is not in the default location, compilation fails at several points.
Signed-off-by: Rolf Eike Beer <eb@emlix.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/91a25e992566a7968fedc89ec80e7f4c83ad0548.1553622500.git.jpoimboe@redhat.com
Diffstat (limited to 'tools/objtool/Makefile')
| -rw-r--r-- | tools/objtool/Makefile | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile index c9d038f91af6..53f8be0f4a1f 100644 --- a/tools/objtool/Makefile +++ b/tools/objtool/Makefile @@ -25,14 +25,17 @@ LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a OBJTOOL := $(OUTPUT)objtool OBJTOOL_IN := $(OBJTOOL)-in.o +LIBELF_FLAGS := $(shell pkg-config libelf --cflags 2>/dev/null) +LIBELF_LIBS := $(shell pkg-config libelf --libs 2>/dev/null || echo -lelf) + all: $(OBJTOOL) INCLUDES := -I$(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 += -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) -LDFLAGS += -lelf $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS) +CFLAGS += -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS) +LDFLAGS += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS) # Allow old libelf to be used: elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr) |