Commit | Line | Data |
---|---|---|
ed3cd4a8 | 1 | ccflags-y := -DSRCTREE='"$(srctree)"' -DOBJTREE='"$(objtree)"' |
2521f2c2 | 2 | |
17c568d6 FH |
3 | # if-lt |
4 | # Usage VAR := $(call if-lt, $(a), $(b)) | |
5 | # Returns 1 if (a < b) | |
6 | if-lt = $(shell [ $(1) -lt $(2) ] && echo 1) | |
7 | ||
8 | ifeq ($(CONFIG_GCOV_FORMAT_3_4),y) | |
9 | cc-ver := 0304 | |
10 | else ifeq ($(CONFIG_GCOV_FORMAT_4_7),y) | |
11 | cc-ver := 0407 | |
12 | else | |
13 | # Use cc-version if available, otherwise set 0 | |
14 | # | |
15 | # scripts/Kbuild.include, which contains cc-version function, is not included | |
16 | # during make clean "make -f scripts/Makefile.clean obj=kernel/gcov" | |
17 | # Meaning cc-ver is empty causing if-lt test to fail with | |
18 | # "/bin/sh: line 0: [: -lt: unary operator expected" error mesage. | |
19 | # This has no affect on the clean phase, but the error message could be | |
20 | # confusing/annoying. So this dummy workaround sets cc-ver to zero if cc-version | |
21 | # is not available. We can probably move if-lt to Kbuild.include, so it's also | |
22 | # not defined during clean or to include Kbuild.include in | |
23 | # scripts/Makefile.clean. But the following workaround seems least invasive. | |
24 | cc-ver := $(if $(call cc-version),$(call cc-version),0) | |
25 | endif | |
26 | ||
27 | obj-$(CONFIG_GCOV_KERNEL) := base.o fs.o | |
28 | ||
29 | ifeq ($(call if-lt, $(cc-ver), 0407),1) | |
30 | obj-$(CONFIG_GCOV_KERNEL) += gcc_3_4.o | |
31 | else | |
32 | obj-$(CONFIG_GCOV_KERNEL) += gcc_4_7.o | |
33 | endif |