diff options
Diffstat (limited to 'tools/perf/builtin-script.c')
| -rw-r--r-- | tools/perf/builtin-script.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index cf5eab5431b4..ae6d216df438 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -1742,16 +1742,44 @@ static int perf_sample__fprintf_pt_spacing(int len, FILE *fp) return perf_sample__fprintf_spacing(len, 34, fp); } +/* If a value contains only printable ASCII characters padded with NULLs */ +static bool ptw_is_prt(u64 val) +{ + char c; + u32 i; + + for (i = 0; i < sizeof(val); i++) { + c = ((char *)&val)[i]; + if (!c) + break; + if (!isprint(c) || !isascii(c)) + return false; + } + for (; i < sizeof(val); i++) { + c = ((char *)&val)[i]; + if (c) + return false; + } + return true; +} + static int perf_sample__fprintf_synth_ptwrite(struct perf_sample *sample, FILE *fp) { struct perf_synth_intel_ptwrite *data = perf_sample__synth_ptr(sample); + char str[sizeof(u64) + 1] = ""; int len; + u64 val; if (perf_sample__bad_synth_size(sample, *data)) return 0; - len = fprintf(fp, " IP: %u payload: %#" PRIx64 " ", - data->ip, le64_to_cpu(data->payload)); + val = le64_to_cpu(data->payload); + if (ptw_is_prt(val)) { + memcpy(str, &val, sizeof(val)); + str[sizeof(val)] = 0; + } + len = fprintf(fp, " IP: %u payload: %#" PRIx64 " %s ", + data->ip, val, str); return len + perf_sample__fprintf_pt_spacing(len, fp); } |