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authorNicholas Piggin <npiggin@gmail.com>2018-05-30 15:19:22 +0300
committerMasahiro Yamada <yamada.masahiro@socionext.com>2018-06-11 03:16:29 +0300
commitabba759796f9b73eb24df9b734dd063839fc62e0 (patch)
treedf8e791111e511831654730fd68481d66dd61486 /arch/powerpc/Kconfig
parent8373b7d9d174d577d93c6d4de46ae207f0b8d55b (diff)
downloadlinux-abba759796f9b73eb24df9b734dd063839fc62e0.tar.xz
powerpc/kbuild: move -mprofile-kernel check to Kconfig
This eliminates the workaround that requires disabling -mprofile-kernel by default in Kconfig. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/powerpc/Kconfig')
-rw-r--r--arch/powerpc/Kconfig16
1 files changed, 1 insertions, 15 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 737d333d4df2..7b96e4c48cbd 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -459,23 +459,9 @@ config LD_HEAD_STUB_CATCH
If unsure, say "N".
-config DISABLE_MPROFILE_KERNEL
- bool "Disable use of mprofile-kernel for kernel tracing"
- depends on PPC64 && CPU_LITTLE_ENDIAN
- default y
- help
- Selecting this options disables use of the mprofile-kernel ABI for
- kernel tracing. That will cause options such as live patching
- (CONFIG_LIVEPATCH) which depend on CONFIG_DYNAMIC_FTRACE_WITH_REGS to
- be disabled also.
-
- If you have a toolchain which supports mprofile-kernel, then you can
- disable this. Otherwise leave it enabled. If you're not sure, say
- "Y".
-
config MPROFILE_KERNEL
depends on PPC64 && CPU_LITTLE_ENDIAN
- def_bool !DISABLE_MPROFILE_KERNEL
+ def_bool $(success,$(srctree)/arch/powerpc/tools/gcc-check-mprofile-kernel.sh $(CC) -I$(srctree)/include -D__KERNEL__)
config HOTPLUG_CPU
bool "Support for enabling/disabling CPUs"