diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 59 |
1 files changed, 54 insertions, 5 deletions
@@ -462,6 +462,12 @@ all:: # the global variable _wpgmptr containing the absolute path of the current # executable (this is the case on Windows). # +# Define GENERATE_COMPILATION_DATABASE to "yes" to generate JSON compilation +# database entries during compilation if your compiler supports it, using the +# `-MJ` flag. The JSON entries will be placed in the `compile_commands/` +# directory, and the JSON compilation database 'compile_commands.json' will be +# created at the root of the repository. +# # Define DEVELOPER to enable more compiler warnings. Compiler version # and family are auto detected, but could be overridden by defining # COMPILER_FEATURES (see config.mak.dev). You can still set @@ -1256,6 +1262,27 @@ $(error please set COMPUTE_HEADER_DEPENDENCIES to yes, no, or auto \ endif endif +ifndef GENERATE_COMPILATION_DATABASE +GENERATE_COMPILATION_DATABASE = no +endif + +ifeq ($(GENERATE_COMPILATION_DATABASE),yes) +compdb_check = $(shell $(CC) $(ALL_CFLAGS) \ + -c -MJ /dev/null \ + -x c /dev/null -o /dev/null 2>&1; \ + echo $$?) +ifneq ($(compdb_check),0) +override GENERATE_COMPILATION_DATABASE = no +$(warning GENERATE_COMPILATION_DATABASE is set to "yes", but your compiler does not \ +support generating compilation database entries) +endif +else +ifneq ($(GENERATE_COMPILATION_DATABASE),no) +$(error please set GENERATE_COMPILATION_DATABASE to "yes" or "no" \ +(not "$(GENERATE_COMPILATION_DATABASE)")) +endif +endif + ifdef SANE_TOOL_PATH SANE_TOOL_PATH_SQ = $(subst ','\'',$(SANE_TOOL_PATH)) BROKEN_PATH_FIX = 's|^\# @@BROKEN_PATH_FIX@@$$|git_broken_path_fix "$(SANE_TOOL_PATH_SQ)"|' @@ -2369,16 +2396,30 @@ missing_dep_dirs = dep_args = endif +compdb_dir = compile_commands + +ifeq ($(GENERATE_COMPILATION_DATABASE),yes) +missing_compdb_dir = $(compdb_dir) +$(missing_compdb_dir): + @mkdir -p $@ + +compdb_file = $(compdb_dir)/$(subst /,-,$@.json) +compdb_args = -MJ $(compdb_file) +else +missing_compdb_dir = +compdb_args = +endif + ASM_SRC := $(wildcard $(OBJECTS:o=S)) ASM_OBJ := $(ASM_SRC:S=o) C_OBJ := $(filter-out $(ASM_OBJ),$(OBJECTS)) .SUFFIXES: -$(C_OBJ): %.o: %.c GIT-CFLAGS $(missing_dep_dirs) - $(QUIET_CC)$(CC) -o $*.o -c $(dep_args) $(ALL_CFLAGS) $(EXTRA_CPPFLAGS) $< -$(ASM_OBJ): %.o: %.S GIT-CFLAGS $(missing_dep_dirs) - $(QUIET_CC)$(CC) -o $*.o -c $(dep_args) $(ALL_CFLAGS) $(EXTRA_CPPFLAGS) $< +$(C_OBJ): %.o: %.c GIT-CFLAGS $(missing_dep_dirs) $(missing_compdb_dir) + $(QUIET_CC)$(CC) -o $*.o -c $(dep_args) $(compdb_args) $(ALL_CFLAGS) $(EXTRA_CPPFLAGS) $< +$(ASM_OBJ): %.o: %.S GIT-CFLAGS $(missing_dep_dirs) $(missing_compdb_dir) + $(QUIET_CC)$(CC) -o $*.o -c $(dep_args) $(compdb_args) $(ALL_CFLAGS) $(EXTRA_CPPFLAGS) $< %.s: %.c GIT-CFLAGS FORCE $(QUIET_CC)$(CC) -o $@ -S $(ALL_CFLAGS) $(EXTRA_CPPFLAGS) $< @@ -2401,6 +2442,14 @@ else $(OBJECTS): $(LIB_H) $(GENERATED_H) endif +ifeq ($(GENERATE_COMPILATION_DATABASE),yes) +all:: compile_commands.json +compile_commands.json: + @$(RM) $@ + $(QUIET_GEN)sed -e '1s/^/[/' -e '$$s/,$$/]/' $(compdb_dir)/*.o.json > $@+ + @if test -s $@+; then mv $@+ $@; else $(RM) $@+; fi +endif + exec-cmd.sp exec-cmd.s exec-cmd.o: GIT-PREFIX exec-cmd.sp exec-cmd.s exec-cmd.o: EXTRA_CPPFLAGS = \ '-DGIT_EXEC_PATH="$(gitexecdir_SQ)"' \ @@ -3088,7 +3137,7 @@ clean: profile-clean coverage-clean cocciclean $(RM) $(TEST_PROGRAMS) $(RM) $(FUZZ_PROGRAMS) $(RM) $(HCC) - $(RM) -r bin-wrappers $(dep_dirs) + $(RM) -r bin-wrappers $(dep_dirs) $(compdb_dir) compile_commands.json $(RM) -r po/build/ $(RM) *.pyc *.pyo */*.pyc */*.pyo $(GENERATED_H) $(ETAGS_TARGET) tags cscope* $(RM) -r $(GIT_TARNAME) .doc-tmp-dir |