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perf build: Remove PERF_HAVE_DWARF_REGS PERF_HAVE_DWARF_REGS was true when an architecture had a dwarf-regs.c file. There are no more architecture dwarf-regs.c files, selection is done using constants from the ELF file rather than conditional compilation. When removing PERF_HAVE_DWARF_REGS was the only variable in the Makefile, remove the Makefile. Add missing SPDX for RISC-V Makefile. Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Anup Patel <anup@brainfault.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: David S. Miller <davem@davemloft.net> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Shenlin Liang <liangshenlin@eswincomputing.com> Cc: Nick Terrell <terrelln@fb.com> Cc: Guilherme Amadio <amadio@gentoo.org> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: Alexander Lobakin <aleksander.lobakin@intel.com> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Guo Ren <guoren@kernel.org> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: James Clark <james.clark@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Chen Pei <cp0613@linux.alibaba.com> Cc: Leo Yan <leo.yan@linux.dev> Cc: Oliver Upton <oliver.upton@linux.dev> Cc: Aditya Gupta <adityag@linux.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-riscv@lists.infradead.org Cc: Bibo Mao <maobibo@loongson.cn> Cc: John Garry <john.g.garry@oracle.com> Cc: Atish Patra <atishp@rivosinc.com> Cc: Dima Kogan <dima@secretsauce.net> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: linux-csky@vger.kernel.org Link: https://lore.kernel.org/r/20241108234606.429459-21-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2024-11-08 15:46:05 -08:00
# SPDX-License-Identifier: GPL-2.0
perf jitdump: Add riscv64 support This patch enables perf jitdump for riscv64 and was tested with V8 on qemu rv64. Qemu rv64: $ perf record -e cpu-clock -c 1000 -g -k mono ./d8_rv64 --perf-prof --no-write-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 options. 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 [.] _ZN2v88internal6WasmJs7InstallEPNS0_7IsolateEb 0.28% 0.00% d8_rv64 d8_rv64 [.] _ZN2v88internal10ParserBaseINS0_6ParserEE22ParseLogicalExpressionEv 0.28% 0.03% d8_rv64 jitted-112-76.so [.] Builtin:InterpreterEntryTrampoline 0.12% 0.00% d8_rv64 d8_rv64 [.] _ZN2v88internal19ContextDeserializer11DeserializeEPNS0_7IsolateENS0_6HandleINS0_13JSGlobalProxyEEENS_33DeserializeInternalFieldsCallbackE 0.12% 0.01% d8_rv64 jitted-112-651.so [.] Builtin:CEntry_Return1_DontSaveFPRegs_ArgvOnStack_NoBuiltinExit .... Signed-off-by: Eric Lin <eric.lin@sifive.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ilya Leoshkevich <iii@linux.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: greentime.hu@sifive.com Cc: linux-riscv@lists.infradead.org Link: http://lore.kernel.org/lkml/20220406142606.18464-2-eric.lin@sifive.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-06 22:26:06 +08:00
PERF_HAVE_JITDUMP := 1
perf kvm/riscv: Port perf kvm stat to RISC-V 'perf kvm stat report/record' generates a statistical analysis of KVM events and can be used to analyze guest exit reasons. "report" reports statistical analysis of guest exit events. To record kvm events on the host: # perf kvm stat record -a To report kvm VM EXIT events: # perf kvm stat report --event=vmexit Signed-off-by: Shenlin Liang <liangshenlin@eswincomputing.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Tested-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240422080833.8745-3-liangshenlin@eswincomputing.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-22 08:08:33 +00:00
HAVE_KVM_STAT_SUPPORT := 1
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