From: Andrew Kilroy <andrew.kilroy@arm.com> To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, acme@kernel.org Cc: Andrew Kilroy <andrew.kilroy@arm.com>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>, Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>, John Fastabend <john.fastabend@gmail.com>, KP Singh <kpsingh@kernel.org>, Tom Rix <trix@redhat.com>, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, bpf@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH 7/8] perf tools: Print ptrauth struct in perf report Date: Mon, 4 Jul 2022 15:53:31 +0100 [thread overview] Message-ID: <20220704145333.22557-8-andrew.kilroy@arm.com> (raw) In-Reply-To: <20220704145333.22557-1-andrew.kilroy@arm.com> This patch prints a perf sample's ptrauth struct so that the PAC masks can be seen. To aid debugging. Signed-off-by: Andrew Kilroy <andrew.kilroy@arm.com> --- tools/perf/util/session.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 37f833c3c81b..6b56e638d4dd 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1329,6 +1329,13 @@ char *get_page_size_name(u64 size, char *str) return str; } +static void ptrauth__printf(struct ptrauth_info *ptrauth) +{ + printf(" . ptrauth enabled keys: 0x%016"PRIx64"\n", ptrauth->enabled_keys); + printf(" . ptrauth instruction mask: 0x%016"PRIx64"\n", ptrauth->insn_mask); + printf(" . ptrauth data mask: 0x%016"PRIx64"\n", ptrauth->data_mask); +} + static void dump_sample(struct evsel *evsel, union perf_event *event, struct perf_sample *sample, const char *arch) { @@ -1385,6 +1392,14 @@ static void dump_sample(struct evsel *evsel, union perf_event *event, if (sample_type & PERF_SAMPLE_READ) sample_read__printf(sample, evsel->core.attr.read_format); + + if (sample_type & PERF_SAMPLE_ARCH_1) { + const char *normlzd_arch = perf_env__arch(evsel->evlist->env); + + if (normlzd_arch && strcmp(normlzd_arch, "arm64") == 0) + ptrauth__printf(&sample->ptrauth); + } + } static void dump_read(struct evsel *evsel, union perf_event *event) -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Kilroy <andrew.kilroy@arm.com> To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, acme@kernel.org Cc: Andrew Kilroy <andrew.kilroy@arm.com>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>, Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>, John Fastabend <john.fastabend@gmail.com>, KP Singh <kpsingh@kernel.org>, Tom Rix <trix@redhat.com>, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, bpf@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH 7/8] perf tools: Print ptrauth struct in perf report Date: Mon, 4 Jul 2022 15:53:31 +0100 [thread overview] Message-ID: <20220704145333.22557-8-andrew.kilroy@arm.com> (raw) In-Reply-To: <20220704145333.22557-1-andrew.kilroy@arm.com> This patch prints a perf sample's ptrauth struct so that the PAC masks can be seen. To aid debugging. Signed-off-by: Andrew Kilroy <andrew.kilroy@arm.com> --- tools/perf/util/session.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 37f833c3c81b..6b56e638d4dd 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1329,6 +1329,13 @@ char *get_page_size_name(u64 size, char *str) return str; } +static void ptrauth__printf(struct ptrauth_info *ptrauth) +{ + printf(" . ptrauth enabled keys: 0x%016"PRIx64"\n", ptrauth->enabled_keys); + printf(" . ptrauth instruction mask: 0x%016"PRIx64"\n", ptrauth->insn_mask); + printf(" . ptrauth data mask: 0x%016"PRIx64"\n", ptrauth->data_mask); +} + static void dump_sample(struct evsel *evsel, union perf_event *event, struct perf_sample *sample, const char *arch) { @@ -1385,6 +1392,14 @@ static void dump_sample(struct evsel *evsel, union perf_event *event, if (sample_type & PERF_SAMPLE_READ) sample_read__printf(sample, evsel->core.attr.read_format); + + if (sample_type & PERF_SAMPLE_ARCH_1) { + const char *normlzd_arch = perf_env__arch(evsel->evlist->env); + + if (normlzd_arch && strcmp(normlzd_arch, "arm64") == 0) + ptrauth__printf(&sample->ptrauth); + } + } static void dump_read(struct evsel *evsel, union perf_event *event) -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-07-04 14:56 UTC|newest] Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-07-04 14:53 [PATCH 0/8] Perf stack unwinding with pointer authentication Andrew Kilroy 2022-07-04 14:53 ` Andrew Kilroy 2022-07-04 14:53 ` [PATCH 1/8] perf arm64: Send pointer auth masks to ring buffer Andrew Kilroy 2022-07-04 14:53 ` Andrew Kilroy 2022-08-10 13:23 ` Arnaldo Carvalho de Melo 2022-08-10 13:23 ` Arnaldo Carvalho de Melo 2022-09-07 15:21 ` James Clark 2022-09-07 15:21 ` James Clark 2022-07-04 14:53 ` [PATCH 2/8] perf evsel: Do not request ptrauth sample field if not supported Andrew Kilroy 2022-07-04 14:53 ` Andrew Kilroy 2022-07-06 16:01 ` Vince Weaver 2022-07-06 16:01 ` Vince Weaver 2022-07-11 9:25 ` James Clark 2022-07-11 9:25 ` James Clark 2022-07-12 21:30 ` Vince Weaver 2022-07-12 21:30 ` Vince Weaver 2022-07-04 14:53 ` [PATCH 3/8] perf test: Update arm64 tests to expect ptrauth masks Andrew Kilroy 2022-07-04 14:53 ` Andrew Kilroy 2022-07-04 14:53 ` [PATCH 4/8] perf tools: arm64: Read ptrauth data from kernel Andrew Kilroy 2022-07-04 14:53 ` Andrew Kilroy 2022-07-04 14:53 ` [PATCH 5/8] perf libunwind: Feature check for libunwind ptrauth callback Andrew Kilroy 2022-07-04 14:53 ` Andrew Kilroy 2022-07-04 14:53 ` [PATCH 6/8] perf libunwind: arm64 pointer authentication Andrew Kilroy 2022-07-04 14:53 ` Andrew Kilroy 2022-07-04 14:53 ` Andrew Kilroy [this message] 2022-07-04 14:53 ` [PATCH 7/8] perf tools: Print ptrauth struct in perf report Andrew Kilroy 2022-07-04 14:53 ` [PATCH 8/8] perf test arm64: Test unwinding with PACs on gcc & clang compilers Andrew Kilroy 2022-07-04 14:53 ` Andrew Kilroy 2022-09-07 15:00 ` [PATCH 0/8] Perf stack unwinding with pointer authentication James Clark 2022-09-07 15:00 ` James Clark
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