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| author |   Mao Han <han_mao@c-sky.com> | 2019-09-05 11:46:36 +0800 |
|---|---|---|
| committer |   Paul Walmsley <paul.walmsley@sifive.com> | 2019-09-05 00:51:52 -0700 |
| commit | 51bc620ba972e1600b791a32c69fa28c80e16fdb (patch) | |
| tree | 155a116b0e7cfe486683d7432870dcfb93aa9572 /tools/perf/Makefile.config | |
| parent | riscv: Add support for perf registers sampling (diff) | |
| download | linux-dev-51bc620ba972e1600b791a32c69fa28c80e16fdb.tar.xz linux-dev-51bc620ba972e1600b791a32c69fa28c80e16fdb.zip | |
riscv: Add support for libdw
This patch adds support for DWARF register mappings and libdw registers
initialization, which is used by perf callchain analyzing when
--call-graph=dwarf is given.
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>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Diffstat (limited to 'tools/perf/Makefile.config')
| -rw-r--r-- | tools/perf/Makefile.config | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 89ac5a1f1550..eaf25ee104e4 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -60,6 +60,10 @@ ifeq ($(SRCARCH),arm64) LIBUNWIND_LIBS = -lunwind -lunwind-aarch64 endif +ifeq ($(SRCARCH),riscv) + NO_PERF_REGS := 0 +endif + ifeq ($(SRCARCH),csky) NO_PERF_REGS := 0 endif @@ -82,7 +86,7 @@ endif # Disable it on all other architectures in case libdw unwind # support is detected in system. Add supported architectures # to the check. -ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky)) +ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv)) NO_LIBDW_DWARF_UNWIND := 1 endif |