[PATCH 0/1] perf jitdump: Add riscv64 support

Eric Lin
2022-04-06T17:01:52Z

This patch enable perf jitdump for riscv64 and it tested with v8 on qemu rv64.

Qemu rv64:
# perf record -e cpu-clock -c 1000 -g -k mono ./d8_rv64 --perf-prof --no-wr
ite-protect-code-memory test.js
# perf inject -j -i perf.data -o perf.data.jitted
# perf report -i perf.data.jitted

Output:
# To display the perf.data header info, please use --header/--header-only option
s.
#
#
# Total Lost Samples: 0
#
# Samples: 87K of event 'cpu-clock'
# Event count (approx.): 87974000
#
# Children Self Command Shared Object Symbol

....
0.28% 0.06% d8_rv64 d8_rv64 [.] _ZN2v88i
nternal6WasmJs7InstallEPNS0_7IsolateEb
0.28% 0.00% d8_rv64 d8_rv64 [.] _ZN2v88i
nternal10ParserBaseINS0_6ParserEE22ParseLogicalExpressionEv
0.28% 0.03% d8_rv64 jitted-112-76.so [.] Builtin:
InterpreterEntryTrampoline
0.12% 0.00% d8_rv64 d8_rv64 [.] _ZN2v88i
nternal19ContextDeserializer11DeserializeEPNS0_7IsolateENS0_6HandleINS0_13JSGlob
alProxyEEENS_33DeserializeInternalFieldsCallbackE
0.12% 0.01% d8_rv64 jitted-112-651.so [.] Builtin:
CEntry_Return1_DontSaveFPRegs_ArgvOnStack_NoBuiltinExit
....

Eric Lin (1):
perf jitdump: Add riscv64 support.

tools/perf/arch/riscv/Makefile | 1 +
tools/perf/util/genelf.h | 3 +++
2 files changed, 4 insertions(+)

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2.35.1