gcov: disable CONFIG_CONSTRUCTORS when not needed by CONFIG_GCOV_KERNEL
CONFIG_CONSTRUCTORS controls support for running constructor functions at
kernel init time. According to commit b99b87f70c
("kernel:
constructor support"), gcov (CONFIG_GCOV_KERNEL) needs this. However,
CONFIG_CONSTRUCTORS currently defaults to y, with no option to disable it,
and CONFIG_GCOV_KERNEL depends on it. Instead, default it to n and have
CONFIG_GCOV_KERNEL select it, so that the normal case of
CONFIG_GCOV_KERNEL=n will result in CONFIG_CONSTRUCTORS=n.
Observed in the short list of =y values in a minimal kernel configuration.
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Acked-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
b0461a44a2
commit
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2 changed files with 2 additions and 2 deletions
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@ -19,7 +19,6 @@ config DEFCONFIG_LIST
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config CONSTRUCTORS
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config CONSTRUCTORS
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bool
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bool
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depends on !UML
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depends on !UML
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default y
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config HAVE_IRQ_WORK
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config HAVE_IRQ_WORK
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bool
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bool
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@ -2,7 +2,8 @@ menu "GCOV-based kernel profiling"
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config GCOV_KERNEL
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config GCOV_KERNEL
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bool "Enable gcov-based kernel profiling"
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bool "Enable gcov-based kernel profiling"
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depends on DEBUG_FS && CONSTRUCTORS
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depends on DEBUG_FS
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select CONSTRUCTORS
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default n
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default n
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---help---
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---help---
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This option enables gcov-based code profiling (e.g. for code coverage
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This option enables gcov-based code profiling (e.g. for code coverage
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