diff options
Diffstat (limited to 'config.mk')
| -rw-r--r-- | config.mk | 11 |
1 files changed, 7 insertions, 4 deletions
@@ -108,13 +108,12 @@ HOSTCFLAGS += -pedantic # only supported compiler options are used # CC_OPTIONS_CACHE_FILE := $(OBJTREE)/include/generated/cc_options.mk - -$(if $(wildcard $(CC_OPTIONS_CACHE_FILE)),,\ - $(shell mkdir -p $(dir $(CC_OPTIONS_CACHE_FILE)))) +CC_TEST_OFILE := $(OBJTREE)/include/generated/cc_test_file.o -include $(CC_OPTIONS_CACHE_FILE) -cc-option-sys = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \ +cc-option-sys = $(shell mkdir -p $(dir $(CC_TEST_OFILE)); \ + if $(CC) $(CFLAGS) $(1) -S -xc /dev/null -o $(CC_TEST_OFILE) \ > /dev/null 2>&1; then \ echo 'CC_OPTIONS += $(strip $1)' >> $(CC_OPTIONS_CACHE_FILE); \ echo "$(1)"; fi) @@ -233,6 +232,10 @@ CFLAGS_WARN := $(call cc-option,-Wno-format-nonliteral) \ $(call cc-option,-Wno-format-security) CFLAGS += $(CFLAGS_WARN) +# Report stack usage if supported +CFLAGS_STACK := $(call cc-option,-fstack-usage) +CFLAGS += $(CFLAGS_STACK) + # $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format> # option to the assembler. AFLAGS_DEBUG := |