diff options
Diffstat (limited to 'tools/objtool/Makefile')
| -rw-r--r-- | tools/objtool/Makefile | 119 |
1 files changed, 92 insertions, 27 deletions
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile index a3a9cc24e0e3..ad6e1ec706ce 100644 --- a/tools/objtool/Makefile +++ b/tools/objtool/Makefile @@ -2,19 +2,40 @@ include ../scripts/Makefile.include include ../scripts/Makefile.arch -# always use the host compiler -AR = $(HOSTAR) -CC = $(HOSTCC) -LD = $(HOSTLD) +ifeq ($(SRCARCH),x86) + BUILD_ORC := y + ARCH_HAS_KLP := y +endif + +ifeq ($(SRCARCH),loongarch) + BUILD_ORC := y +endif + +ifeq ($(ARCH_HAS_KLP),y) + HAVE_XXHASH = $(shell printf "$(pound)include <xxhash.h>\nXXH3_state_t *state;int main() {}" | \ + $(HOSTCC) -xc - -o /dev/null -lxxhash 2> /dev/null && echo y || echo n) + ifeq ($(HAVE_XXHASH),y) + BUILD_KLP := y + LIBXXHASH_CFLAGS := $(shell $(HOSTPKG_CONFIG) libxxhash --cflags 2>/dev/null) \ + -DBUILD_KLP + LIBXXHASH_LIBS := $(shell $(HOSTPKG_CONFIG) libxxhash --libs 2>/dev/null || echo -lxxhash) + endif +endif + +export BUILD_ORC BUILD_KLP ifeq ($(srctree),) srctree := $(patsubst %/,%,$(dir $(CURDIR))) srctree := $(patsubst %/,%,$(dir $(srctree))) endif -SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/ -LIBSUBCMD_OUTPUT = $(or $(OUTPUT),$(CURDIR)/) -LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a +LIBSUBCMD_DIR = $(srctree)/tools/lib/subcmd/ +ifneq ($(OUTPUT),) + LIBSUBCMD_OUTPUT = $(abspath $(OUTPUT))/libsubcmd +else + LIBSUBCMD_OUTPUT = $(CURDIR)/libsubcmd +endif +LIBSUBCMD = $(LIBSUBCMD_OUTPUT)/libsubcmd.a OBJTOOL := $(OUTPUT)objtool OBJTOOL_IN := $(OBJTOOL)-in.o @@ -24,46 +45,90 @@ LIBELF_LIBS := $(shell $(HOSTPKG_CONFIG) libelf --libs 2>/dev/null || echo -lel all: $(OBJTOOL) +WARNINGS := -Werror -Wall -Wextra -Wmissing-prototypes \ + -Wmissing-declarations -Wwrite-strings \ + -Wno-implicit-fallthrough -Wno-sign-compare \ + -Wno-unused-parameter + INCLUDES := -I$(srctree)/tools/include \ + -I$(srctree)/tools/include/uapi \ -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \ -I$(srctree)/tools/arch/$(SRCARCH)/include \ -I$(srctree)/tools/objtool/include \ - -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include -WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed -Wno-nested-externs -CFLAGS := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS) -LDFLAGS += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS) + -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include \ + -I$(LIBSUBCMD_OUTPUT)/include -# Allow old libelf to be used: -elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr) -CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED) +OBJTOOL_CFLAGS := -std=gnu11 -fomit-frame-pointer -O2 -g $(WARNINGS) \ + $(INCLUDES) $(LIBELF_FLAGS) $(LIBXXHASH_CFLAGS) $(HOSTCFLAGS) -AWK = awk +OBJTOOL_LDFLAGS := $(LIBSUBCMD) $(LIBELF_LIBS) $(LIBXXHASH_LIBS) $(HOSTLDFLAGS) -BUILD_ORC := n +# Allow old libelf to be used: +elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(HOSTCC) $(OBJTOOL_CFLAGS) -x c -E - 2>/dev/null | grep elf_getshdr) +OBJTOOL_CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED) + +# Always want host compilation. +HOST_OVERRIDES := CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" + +# +# To support disassembly, objtool needs libopcodes which is provided +# with libbdf (binutils-dev or binutils-devel package). +# +FEATURE_USER = .objtool +FEATURE_TESTS = libbfd disassembler-init-styled +FEATURE_DISPLAY = +include $(srctree)/tools/build/Makefile.feature + +ifeq ($(feature-disassembler-init-styled), 1) + OBJTOOL_CFLAGS += -DDISASM_INIT_STYLED +endif -ifeq ($(SRCARCH),x86) - BUILD_ORC := y +BUILD_DISAS := n + +ifeq ($(feature-libbfd),1) + BUILD_DISAS := y + OBJTOOL_CFLAGS += -DDISAS -DPACKAGE="objtool" + OBJTOOL_LDFLAGS += -lopcodes endif -export BUILD_ORC +export BUILD_DISAS + +AWK = awk +MKDIR = mkdir + export srctree OUTPUT CFLAGS SRCARCH AWK include $(srctree)/tools/build/Makefile.include -$(OBJTOOL_IN): fixdep FORCE - @$(CONFIG_SHELL) ./sync-check.sh - @$(MAKE) $(build)=objtool +$(OBJTOOL_IN): fixdep $(LIBSUBCMD) FORCE + $(Q)$(CONFIG_SHELL) ./sync-check.sh + $(Q)$(MAKE) $(build)=objtool $(HOST_OVERRIDES) CFLAGS="$(OBJTOOL_CFLAGS)" \ + LDFLAGS="$(OBJTOOL_LDFLAGS)" + $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN) - $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@ + $(QUIET_LINK)$(HOSTCC) $(OBJTOOL_IN) $(OBJTOOL_LDFLAGS) -o $@ + + +$(LIBSUBCMD_OUTPUT): + $(Q)$(MKDIR) -p $@ +$(LIBSUBCMD): fixdep $(LIBSUBCMD_OUTPUT) FORCE + $(Q)$(MAKE) -C $(LIBSUBCMD_DIR) O=$(LIBSUBCMD_OUTPUT) \ + DESTDIR=$(LIBSUBCMD_OUTPUT) prefix= subdir= \ + $(HOST_OVERRIDES) EXTRA_CFLAGS="$(OBJTOOL_CFLAGS)" \ + $@ install_headers -$(LIBSUBCMD): fixdep FORCE - $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT) +$(LIBSUBCMD)-clean: + $(call QUIET_CLEAN, libsubcmd) + $(Q)$(RM) -r -- $(LIBSUBCMD_OUTPUT) -clean: +clean: $(LIBSUBCMD)-clean $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL) $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete - $(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep $(LIBSUBCMD) + $(Q)$(RM) $(OUTPUT)arch/x86/lib/cpu-feature-names.c $(OUTPUT)fixdep + $(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep + $(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.objtool + $(Q)$(RM) -r -- $(OUTPUT)feature FORCE: |