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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-05-28 12:22:03 +0300 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-06-08 12:56:02 +0300 |
| commit | 6a61b70b43c9c4cbc7314bf6c8b5ba8b0d6e1e7b (patch) | |
| tree | 390a3c7ef40859d0911cca7382ecfe46e777ad43 /kernel/gcov/Makefile | |
| parent | f3a53f7b5740b0cd411262ee56a0fb7248199d3a (diff) | |
| download | linux-6a61b70b43c9c4cbc7314bf6c8b5ba8b0d6e1e7b.tar.xz | |
gcov: remove CONFIG_GCOV_FORMAT_AUTODETECT
CONFIG_GCOV_FORMAT_AUTODETECT compiles either gcc_3_4.c or gcc_4_7.c
according to your GCC version.
We can achieve the equivalent behavior by setting reasonable dependency
with the knowledge of the compiler version.
If GCC older than 4.7 is used, GCOV_FORMAT_3_4 is the default, but users
are still allowed to select GCOV_FORMAT_4_7 in case the newer format is
back-ported.
On the other hand, If GCC 4.7 or newer is used, there is no reason to
use GCOV_FORMAT_3_4, so it should be hidden.
If you downgrade the compiler to GCC 4.7 or older, oldconfig/syncconfig
will display a prompt for the choice because GCOV_FORMAT_3_4 becomes
visible as a new symbol.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'kernel/gcov/Makefile')
| -rw-r--r-- | kernel/gcov/Makefile | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/gcov/Makefile b/kernel/gcov/Makefile index c6c50e5c680e..ff06d64df397 100644 --- a/kernel/gcov/Makefile +++ b/kernel/gcov/Makefile @@ -4,5 +4,3 @@ ccflags-y := -DSRCTREE='"$(srctree)"' -DOBJTREE='"$(objtree)"' obj-y := base.o fs.o obj-$(CONFIG_GCOV_FORMAT_3_4) += gcc_3_4.o obj-$(CONFIG_GCOV_FORMAT_4_7) += gcc_4_7.o -obj-$(CONFIG_GCOV_FORMAT_AUTODETECT) += $(call cc-ifversion, -lt, 0407, \ - gcc_3_4.o, gcc_4_7.o) |