diff options
| author | Mao Han <han_mao@c-sky.com> | 2019-09-05 11:46:35 +0800 |
|---|---|---|
| committer | Paul Walmsley <paul.walmsley@sifive.com> | 2019-09-05 00:48:58 -0700 |
| commit | 98a93b0b561c571153b7cd6953e882bc3fd8cfcd (patch) | |
| tree | 4698bf158191aa820da633e485089d0c447a6cd2 /arch/riscv/kernel/Makefile | |
| parent | dbeb90b0c1eb86a9b963b929d3c937afb7dadfa3 (diff) | |
riscv: Add support for perf registers sampling
This patch implements the perf registers sampling and validation API
for the riscv arch. The valid registers and their register ID are
defined in perf_regs.h. Perf tool can backtrace in userspace with
unwind library and the registers/user stack dump support.
Signed-off-by: Mao Han <han_mao@c-sky.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: linux-riscv <linux-riscv@lists.infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Guo Ren <guoren@kernel.org>
Tested-by: Greentime Hu <greentime.hu@sifive.com>
[paul.walmsley@sifive.com: minor patch description fix]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Diffstat (limited to 'arch/riscv/kernel/Makefile')
| -rw-r--r-- | arch/riscv/kernel/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/kernel/Makefile b/arch/riscv/kernel/Makefile index b1bea89fc814..696020ff72db 100644 --- a/arch/riscv/kernel/Makefile +++ b/arch/riscv/kernel/Makefile @@ -40,5 +40,6 @@ obj-$(CONFIG_DYNAMIC_FTRACE) += mcount-dyn.o obj-$(CONFIG_PERF_EVENTS) += perf_event.o obj-$(CONFIG_PERF_EVENTS) += perf_callchain.o +obj-$(CONFIG_HAVE_PERF_REGS) += perf_regs.o clean: |