| matt mooney | ed3cd4a | 2011-01-14 06:12:24 -0800 | [diff] [blame] | 1 | ccflags-y := -DSRCTREE='"$(srctree)"' -DOBJTREE='"$(objtree)"' |
| Peter Oberparleiter | 2521f2c | 2009-06-17 16:28:08 -0700 | [diff] [blame] | 2 | |
| Frantisek Hrbata | 17c568d | 2013-11-12 15:11:27 -0800 | [diff] [blame] | 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 |