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authorJean Pihet <jean.pihet@linaro.org>2014-02-03 19:18:27 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2014-03-13 11:22:37 +0000
commit2ee0d7fd36a3f87bc5b29b1ec54ad6728deedb41 (patch)
treeee61e586396af7ebf753a03fee22f268fc91312d /arch/arm64/Kconfig
parentarm64: Add boot time configuration of Intermediate Physical Address size (diff)
downloadlinux-dev-2ee0d7fd36a3f87bc5b29b1ec54ad6728deedb41.tar.xz
linux-dev-2ee0d7fd36a3f87bc5b29b1ec54ad6728deedb41.zip
ARM64: perf: add support for perf registers API
This patch implements the functions required for the perf registers API, allowing the perf tool to interface kernel register dumps with libunwind in order to provide userspace backtracing. Compat mode is also supported. Only the general purpose user space registers are exported, i.e.: PERF_REG_ARM_X0, ... PERF_REG_ARM_X28, PERF_REG_ARM_FP, PERF_REG_ARM_LR, PERF_REG_ARM_SP, PERF_REG_ARM_PC and not the PERF_REG_ARM_V* registers. Signed-off-by: Jean Pihet <jean.pihet@linaro.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/Kconfig')
-rw-r--r--arch/arm64/Kconfig2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 140cd1a9dc0c..507ab6e53522 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -39,6 +39,8 @@ config ARM64
select HAVE_MEMBLOCK
select HAVE_PATA_PLATFORM
select HAVE_PERF_EVENTS
+ select HAVE_PERF_REGS
+ select HAVE_PERF_USER_STACK_DUMP
select IRQ_DOMAIN
select MODULES_USE_ELF_RELA
select NO_BOOTMEM