diff options
Diffstat (limited to 'tools/perf/trace/beauty/perf_event_open.c')
-rw-r--r-- | tools/perf/trace/beauty/perf_event_open.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/perf_event_open.c b/tools/perf/trace/beauty/perf_event_open.c index 11d47dbe63bd..01ee15fe9d0c 100644 --- a/tools/perf/trace/beauty/perf_event_open.c +++ b/tools/perf/trace/beauty/perf_event_open.c @@ -44,3 +44,47 @@ static size_t syscall_arg__scnprintf_perf_flags(char *bf, size_t size, } #define SCA_PERF_FLAGS syscall_arg__scnprintf_perf_flags + +struct attr_fprintf_args { + size_t size, printed; + char *bf; + bool first; +}; + +static int attr__fprintf(FILE *fp __maybe_unused, const char *name, const char *val, void *priv) +{ + struct attr_fprintf_args *args = priv; + size_t printed = scnprintf(args->bf + args->printed , args->size - args->printed, "%s%s: %s", args->first ? "" : ", ", name, val); + + args->first = false; + args->printed += printed; + return printed; +} + +static size_t perf_event_attr___scnprintf(struct perf_event_attr *attr, char *bf, size_t size, bool show_zeros __maybe_unused) +{ + struct attr_fprintf_args args = { + .printed = scnprintf(bf, size, "{ "), + .size = size, + .first = true, + .bf = bf, + }; + + perf_event_attr__fprintf(stdout, attr, attr__fprintf, &args); + return args.printed + scnprintf(bf + args.printed, size - args.printed, " }"); +} + +static size_t syscall_arg__scnprintf_augmented_perf_event_attr(struct syscall_arg *arg, char *bf, size_t size) +{ + return perf_event_attr___scnprintf((void *)arg->augmented.args, bf, size, arg->trace->show_zeros); +} + +static size_t syscall_arg__scnprintf_perf_event_attr(char *bf, size_t size, struct syscall_arg *arg) +{ + if (arg->augmented.args) + return syscall_arg__scnprintf_augmented_perf_event_attr(arg, bf, size); + + return scnprintf(bf, size, "%#lx", arg->val); +} + +#define SCA_PERF_ATTR syscall_arg__scnprintf_perf_event_attr |