forked from luck/tmp_suning_uos_patched
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>
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@ -53,23 +53,16 @@ config GCOV_PROFILE_ALL
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choice
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prompt "Specify GCOV format"
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depends on GCOV_KERNEL
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default GCOV_FORMAT_AUTODETECT
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---help---
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The gcov format is usually determined by the GCC version, but there are
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The gcov format is usually determined by the GCC version, and the
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default is chosen according to your GCC version. However, there are
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exceptions where format changes are integrated in lower-version GCCs.
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In such a case use this option to adjust the format used in the kernel
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accordingly.
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If unsure, choose "Autodetect".
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config GCOV_FORMAT_AUTODETECT
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bool "Autodetect"
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---help---
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Select this option to use the format that corresponds to your GCC
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version.
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In such a case, change this option to adjust the format used in the
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kernel accordingly.
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config GCOV_FORMAT_3_4
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bool "GCC 3.4 format"
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depends on CC_IS_GCC && GCC_VERSION < 40700
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---help---
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Select this option to use the format defined by GCC 3.4.
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@ -4,5 +4,3 @@ ccflags-y := -DSRCTREE='"$(srctree)"' -DOBJTREE='"$(objtree)"'
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obj-y := base.o fs.o
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obj-$(CONFIG_GCOV_FORMAT_3_4) += gcc_3_4.o
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obj-$(CONFIG_GCOV_FORMAT_4_7) += gcc_4_7.o
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obj-$(CONFIG_GCOV_FORMAT_AUTODETECT) += $(call cc-ifversion, -lt, 0407, \
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gcc_3_4.o, gcc_4_7.o)
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