From: James Clark james.clark@arm.com
mainline inclusion from mainline-v6.2-rc1 commit b00204f5c21ca1bd38b8cb45d12a605b4e60a884 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I85PIL CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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cs_etm__print_auxtrace_info() is called twice in case there is an error somewhere in cs_etm__process_auxtrace_info(), but all the info is already available at the beginning so just print it there instead.
Also use u64 and the already cast ptr variable to make it more consistent with the rest of the etm code.
Signed-off-by: James Clark james.clark@arm.com Cc: Al Grant Al.Grant@arm.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Ingo Molnar mingo@redhat.com Cc: Jiri Olsa jolsa@kernel.org Cc: John Garry john.g.garry@oracle.com Cc: Leo Yan leo.yan@linaro.org Cc: Mark Rutland mark.rutland@arm.com Cc: Mathieu Poirier mathieu.poirier@linaro.org Cc: Mike Leach mike.leach@linaro.org Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: Suzuki Poulouse suzuki.poulose@arm.com Cc: Will Deacon will@kernel.org Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20221212155513.2259623-4-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: xiabing xiabing12@h-partners.com --- tools/perf/util/cs-etm.c | 28 ++++++++++------------------ 1 file changed, 10 insertions(+), 18 deletions(-)
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 88fee0935036..aab91e7b5fe5 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -2541,14 +2541,14 @@ static const char * const cs_etmv4_priv_fmts[] = { };
static const char * const param_unk_fmt = - " Unknown parameter [%d] %llx\n"; + " Unknown parameter [%d] %"PRIx64"\n"; static const char * const magic_unk_fmt = - " Magic number Unknown %llx\n"; + " Magic number Unknown %"PRIx64"\n";
-static int cs_etm__print_cpu_metadata_v0(__u64 *val, int *offset) +static int cs_etm__print_cpu_metadata_v0(u64 *val, int *offset) { int i = *offset, j, nr_params = 0, fmt_offset; - __u64 magic; + u64 magic;
/* check magic value */ magic = val[i + CS_ETM_MAGIC]; @@ -2580,10 +2580,10 @@ static int cs_etm__print_cpu_metadata_v0(__u64 *val, int *offset) return 0; }
-static int cs_etm__print_cpu_metadata_v1(__u64 *val, int *offset) +static int cs_etm__print_cpu_metadata_v1(u64 *val, int *offset) { int i = *offset, j, total_params = 0; - __u64 magic; + u64 magic;
magic = val[i + CS_ETM_MAGIC]; /* total params to print is NR_PARAMS + common block size for v1 */ @@ -2619,7 +2619,7 @@ static int cs_etm__print_cpu_metadata_v1(__u64 *val, int *offset) return 0; }
-static void cs_etm__print_auxtrace_info(__u64 *val, int num) +static void cs_etm__print_auxtrace_info(u64 *val, int num) { int i, cpu = 0, version, err;
@@ -2933,6 +2933,9 @@ int cs_etm__process_auxtrace_info(union perf_event *event, pmu_type = (unsigned int) ((hdr[CS_PMU_TYPE_CPUS] >> 32) & 0xffffffff);
+ if (dump_trace) + cs_etm__print_auxtrace_info(ptr, num_cpu); + /* * Create an RB tree for traceID-metadata tuple. Since the conversion * has to be made for each packet that gets decoded, optimizing access @@ -3082,10 +3085,6 @@ int cs_etm__process_auxtrace_info(union perf_event *event, goto err_delete_thread; }
- if (dump_trace) { - cs_etm__print_auxtrace_info(auxtrace_info->priv, num_cpu); - } - err = cs_etm__synth_events(etm, session); if (err) goto err_delete_thread; @@ -3121,12 +3120,5 @@ int cs_etm__process_auxtrace_info(union perf_event *event, intlist__delete(traceid_list); err_free_hdr: zfree(&hdr); - /* - * At this point, as a minimum we have valid header. Dump the rest of - * the info section - the print routines will error out on structural - * issues. - */ - if (dump_trace) - cs_etm__print_auxtrace_info(auxtrace_info->priv, num_cpu); return err; }