Changed in V3: - For gcc-ar.o, gcc-nm.o and gcc-ranlib.o, we make use of '$(ALL_HOST_OBJS) : | $(generated_files)' rule, for errors.o, we refered what gengtype-parse.o did.
Changed in V2: - Make use of '$(ALL_HOST_OBJS) : | $(generated_files)' rule to check the dependency. The gcc-ar.o, gcc-nm.o, gcc-ranlib.o and errors.o included config.h which was a generated file. But no explicity rule to clarify the dependency. There was potential building failure while parallel make. For gcc-ar.o, gcc-nm.o and gcc-ranlib.o, they were compiled from one C source file gcc-ar.c, we add them to ALL_HOST_BACKEND_OBJS, so the '$(ALL_HOST_OBJS) : | $(generated_files)' rule could work for these objects. For errors.o, it is part of gengtype, and the gengtype generator program is special: Two versions are built. One is for the build machine, and one is for the host. We refered what gengtype-parse.o did (which also is part of gengtype). [GCC #61899] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61899 Signed-off-by: Hongxu Jia <hongxu....@windriver.com> --- gcc/Makefile.in | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/gcc/Makefile.in b/gcc/Makefile.in index a726109..cdaa406 100644 --- a/gcc/Makefile.in +++ b/gcc/Makefile.in @@ -1491,13 +1491,16 @@ OBJS-libcommon-target = $(common_out_object_file) prefix.o params.o \ opts.o opts-common.o options.o vec.o hooks.o common/common-targhooks.o \ hash-table.o file-find.o +# Objects compiled from one C source file gcc-ar.c +OBJS-gcc-ar = gcc-ar.o gcc-nm.o gcc-ranlib.o + # This lists all host objects for the front ends. ALL_HOST_FRONTEND_OBJS = $(foreach v,$(CONFIG_LANGUAGES),$($(v)_OBJS)) ALL_HOST_BACKEND_OBJS = $(GCC_OBJS) $(OBJS) $(OBJS-libcommon) \ $(OBJS-libcommon-target) @TREEBROWSER@ main.o c-family/cppspec.o \ $(COLLECT2_OBJS) $(EXTRA_GCC_OBJS) $(GCOV_OBJS) $(GCOV_DUMP_OBJS) \ - $(GCOV_TOOL_OBJS) lto-wrapper.o collect-utils.o + $(GCOV_TOOL_OBJS) lto-wrapper.o collect-utils.o $(OBJS-gcc-ar) # This lists all host object files, whether they are included in this # compilation or not. @@ -2447,6 +2450,8 @@ gengtype-lex.o: $(CONFIG_H) $(BCONFIG_H) CFLAGS-gengtype-lex.o += -DGENERATOR_FILE build/gengtype-lex.o: $(BCONFIG_H) +errors.o : $(CONFIG_H) + gengtype-parse.o build/gengtype-parse.o : gengtype-parse.c gengtype.h \ $(SYSTEM_H) gengtype-parse.o: $(CONFIG_H) -- 1.8.1.2