diff options
| author | Mao Han <han_mao@c-sky.com> | 2019-02-21 21:41:26 +0800 |
|---|---|---|
| committer | Guo Ren <ren_guo@c-sky.com> | 2019-04-22 13:44:57 +0800 |
| commit | cfa4d93b977a1b1129e7207d11b5daecdf0c56c4 (patch) | |
| tree | 819c1af5ddde73eb5683c992565f3ed79ae1be64 /arch/csky/kernel/Makefile | |
| parent | 28bb030f93334495ddc64ade0bff18721bf7023d (diff) | |
csky: Add perf callchain support
This patch add support for perf callchain sampling on csky platform.
As fp is used to unwind the stack, the program being sampled and the
C library need to be compiled with -mbacktrace for user callchains,
kernel callchains require CONFIG_STACKTRACE = y.
Changelog:
- Coding convention with Christoph's advice for riscv's.
Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Christoph Hellwig <hch@infradead.org>
Diffstat (limited to 'arch/csky/kernel/Makefile')
| -rw-r--r-- | arch/csky/kernel/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/csky/kernel/Makefile b/arch/csky/kernel/Makefile index 484e6d3a3647..4c462f584dd1 100644 --- a/arch/csky/kernel/Makefile +++ b/arch/csky/kernel/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_CSKY_PMU_V1) += perf_event.o +obj-$(CONFIG_PERF_EVENTS) += perf_callchain.o ifdef CONFIG_FUNCTION_TRACER CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE) |