Staging
v0.8.1
v0.8.1
swh:1:snp:a902887e4be9191b7c6c4406aa06b31c1ce2c7cc
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- v3.9-rc8
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- v3.19-rc1
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- v3.18-rc7
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- v3.16-rc1
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- v3.14-rc8
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- v3.10
- v3.1-rc9
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- v3.0-rc1
- v3.0
- v2.6.39-rc7
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- v2.6.38-rc1
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- v2.6.32
- v2.6.31-rc9
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- v2.6.31-rc1
- v2.6.31
- v2.6.30-rc8
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- v2.6.30-rc1
- v2.6.30
- v2.6.29-rc8
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- v2.6.29-rc1
- v2.6.29
- v2.6.28-rc9
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- v2.6.28-rc1
- v2.6.28
- v2.6.27-rc9
- v2.6.27-rc8
- v2.6.27-rc7
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- v2.6.27-rc1
- v2.6.27
- v2.6.26-rc9
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- v2.6.26-rc1
- v2.6.26
- v2.6.25-rc9
- v2.6.25-rc8
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- v2.6.25-rc1
- v2.6.25
- v2.6.24-rc8
- v2.6.24-rc7
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- v2.6.24-rc3
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- v2.6.24-rc1
- v2.6.24
- v2.6.23-rc9
- v2.6.23-rc8
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- v2.6.23-rc1
- v2.6.23
- v2.6.22-rc7
- v2.6.22-rc6
- v2.6.22-rc5
- v2.6.22-rc4
- v2.6.22-rc3
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- v2.6.22-rc1
- v2.6.22
- v2.6.21-rc7
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- v2.6.21-rc1
- v2.6.21
- v2.6.20-rc7
- v2.6.20-rc6
- v2.6.20-rc5
- v2.6.20-rc4
- v2.6.20-rc3
- v2.6.20-rc2
- v2.6.20-rc1
- v2.6.20
- v2.6.19-rc6
- v2.6.19-rc5
- v2.6.19-rc4
- v2.6.19-rc3
- v2.6.19-rc2
- v2.6.19-rc1
- v2.6.19
- v2.6.18-rc7
- v2.6.18-rc6
- v2.6.18-rc5
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- v2.6.18-rc1
- v2.6.18
- v2.6.17-rc6
- v2.6.17-rc5
- v2.6.17-rc4
- v2.6.17-rc3
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- v2.6.17-rc1
- v2.6.17
- v2.6.16-rc6
- v2.6.16-rc5
- v2.6.16-rc4
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- v2.6.16-rc1
- v2.6.16
- v2.6.15-rc7
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- v2.6.15-rc1
- v2.6.15
- v2.6.14-rc5
- v2.6.14-rc4
- v2.6.14-rc3
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Tip revision: c4681547bcce777daf576925a966ffa824edd09d authored by Linus Torvalds on 23 May 2021, 21:42:48 UTC
Linux 5.13-rc3
Linux 5.13-rc3
Tip revision: c468154
Kconfig
# SPDX-License-Identifier: GPL-2.0-only
menu "GCOV-based kernel profiling"
config GCOV_KERNEL
bool "Enable gcov-based kernel profiling"
depends on DEBUG_FS
depends on !CC_IS_CLANG || CLANG_VERSION >= 110000
select CONSTRUCTORS
default n
help
This option enables gcov-based code profiling (e.g. for code coverage
measurements).
If unsure, say N.
Additionally specify CONFIG_GCOV_PROFILE_ALL=y to get profiling data
for the entire kernel. To enable profiling for specific files or
directories, add a line similar to the following to the respective
Makefile:
For a single file (e.g. main.o):
GCOV_PROFILE_main.o := y
For all files in one directory:
GCOV_PROFILE := y
To exclude files from being profiled even when CONFIG_GCOV_PROFILE_ALL
is specified, use:
GCOV_PROFILE_main.o := n
and:
GCOV_PROFILE := n
Note that the debugfs filesystem has to be mounted to access
profiling data.
config ARCH_HAS_GCOV_PROFILE_ALL
def_bool n
config GCOV_PROFILE_ALL
bool "Profile entire Kernel"
depends on !COMPILE_TEST
depends on GCOV_KERNEL
depends on ARCH_HAS_GCOV_PROFILE_ALL
default n
help
This options activates profiling for the entire kernel.
If unsure, say N.
Note that a kernel compiled with profiling flags will be significantly
larger and run slower. Also be sure to exclude files from profiling
which are not linked to the kernel image to prevent linker errors.
endmenu