linux/tools/lib/subcmd/Makefile
James Clark 22bd8f1b5a libsubcmd: Use -O0 with DEBUG=1
When a 'make DEBUG=1' build is done, the command parser is still built
with -O6 and is hard to step through, fix it making it use -O0 in that
case.

Signed-off-by: James Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: nd <nd@arm.com>
Link: http://lore.kernel.org/lkml/20191028113340.4282-1-james.clark@arm.com
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-06 15:49:39 -03:00

71 lines
1.5 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
include ../../scripts/Makefile.include
include ../../scripts/utilities.mak # QUIET_CLEAN
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))
endif
CC ?= $(CROSS_COMPILE)gcc
LD ?= $(CROSS_COMPILE)ld
AR ?= $(CROSS_COMPILE)ar
RM = rm -f
MAKEFLAGS += --no-print-directory
LIBFILE = $(OUTPUT)libsubcmd.a
CFLAGS := -ggdb3 -Wall -Wextra -std=gnu99 -fPIC
ifeq ($(DEBUG),0)
ifeq ($(feature-fortify-source), 1)
CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
endif
endif
ifeq ($(DEBUG),1)
CFLAGS += -O0
else ifeq ($(CC_NO_CLANG), 0)
CFLAGS += -O3
else
CFLAGS += -O6
endif
# Treat warnings as errors unless directed not to
ifneq ($(WERROR),0)
CFLAGS += -Werror
endif
CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
CFLAGS += -I$(srctree)/tools/include/
CFLAGS += $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
SUBCMD_IN := $(OUTPUT)libsubcmd-in.o
all:
export srctree OUTPUT CC LD CFLAGS V
include $(srctree)/tools/build/Makefile.include
all: fixdep $(LIBFILE)
$(SUBCMD_IN): FORCE
@$(MAKE) $(build)=libsubcmd
$(LIBFILE): $(SUBCMD_IN)
$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(SUBCMD_IN)
clean:
$(call QUIET_CLEAN, libsubcmd) $(RM) $(LIBFILE); \
find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
FORCE:
.PHONY: clean FORCE