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| author |  Ian Rogers <irogers@google.com>
| 2023-01-26 11:06:04 -0800 |
|---|---|---|
| committer |  Josh Poimboeuf <jpoimboe@kernel.org>
| 2023-01-30 16:27:46 -0800 |
| commit | bdb8bf7d56afd1d22c12c61455d732d3baff2bde (patch) | |
| tree | deae784a60707814be6fbdb0f6ff2b0fdf70df61 /tools/objtool | |
| parent | objtool: Check that module init/exit function is an indirect call target (diff) | |
| download | linux-bdb8bf7d56afd1d22c12c61455d732d3baff2bde.tar.gz linux-bdb8bf7d56afd1d22c12c61455d732d3baff2bde.tar.bz2 linux-bdb8bf7d56afd1d22c12c61455d732d3baff2bde.zip | |
objtool: Install libsubcmd in build
Including from tools/lib can create inadvertent dependencies. Install
libsubcmd in the objtool build and then include the headers from
there.
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20230126190606.40739-2-irogers@google.com
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Diffstat (limited to 'tools/objtool')
| -rw-r--r-- | tools/objtool/.gitignore | 1 | ||||
| -rw-r--r-- | tools/objtool/Build | 2 | ||||
| -rw-r--r-- | tools/objtool/Makefile | 31 |
3 files changed, 24 insertions, 10 deletions
diff --git a/tools/objtool/.gitignore b/tools/objtool/.gitignore index 14236db3677f..4faa4dd72f35 100644 --- a/tools/objtool/.gitignore +++ b/tools/objtool/.gitignore @@ -2,3 +2,4 @@ arch/x86/lib/inat-tables.c /objtool fixdep +libsubcmd/ diff --git a/tools/objtool/Build b/tools/objtool/Build index 33f2ee5a46d3..a3cdf8af6635 100644 --- a/tools/objtool/Build +++ b/tools/objtool/Build @@ -16,8 +16,6 @@ objtool-y += libctype.o objtool-y += str_error_r.o objtool-y += librbtree.o -CFLAGS += -I$(srctree)/tools/lib - $(OUTPUT)libstring.o: ../lib/string.c FORCE $(call rule_mkdir) $(call if_changed_dep,cc_o_c) diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile index a3a9cc24e0e3..3505ae4b0e36 100644 --- a/tools/objtool/Makefile +++ b/tools/objtool/Makefile @@ -12,9 +12,13 @@ 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 := $(OBJTOOL)-in.o @@ -28,7 +32,8 @@ INCLUDES := -I$(srctree)/tools/include \ -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \ -I$(srctree)/tools/arch/$(SRCARCH)/include \ -I$(srctree)/tools/objtool/include \ - -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include + -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include \ + -I$(LIBSUBCMD_OUTPUT)/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) @@ -38,6 +43,7 @@ elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED) AWK = awk +MKDIR = mkdir BUILD_ORC := n @@ -57,13 +63,22 @@ $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN) $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@ -$(LIBSUBCMD): fixdep FORCE - $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT) +$(LIBSUBCMD_OUTPUT): + @$(MKDIR) -p $@ + +$(LIBSUBCMD): fixdep $(LIBSUBCMD_OUTPUT) FORCE + @$(MAKE) -C $(LIBSUBCMD_DIR) O=$(LIBSUBCMD_OUTPUT) \ + DESTDIR=$(LIBSUBCMD_OUTPUT) prefix= subdir= \ + $@ install_headers + +$(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/inat-tables.c $(OUTPUT)fixdep FORCE: |