diff options
Diffstat (limited to 'tools/perf/builtin-trace.c')
| -rw-r--r-- | tools/perf/builtin-trace.c | 29 |
1 files changed, 7 insertions, 22 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 765b998755ce..d8565c9a18a2 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -79,7 +79,6 @@ struct trace { struct perf_tool tool; struct syscalltbl *sctbl; struct { - int max; struct syscall *table; struct bpf_map *map; struct { // per syscall BPF_MAP_TYPE_PROG_ARRAY @@ -1493,21 +1492,10 @@ static int trace__read_syscall_info(struct trace *trace, int id) struct syscall *sc; const char *name = syscalltbl__name(trace->sctbl, id); - if (id > trace->syscalls.max) { - struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); - - if (nsyscalls == NULL) + if (trace->syscalls.table == NULL) { + trace->syscalls.table = calloc(trace->sctbl->syscalls.nr_entries, sizeof(*sc)); + if (trace->syscalls.table == NULL) return -ENOMEM; - - if (trace->syscalls.max != -1) { - memset(nsyscalls + trace->syscalls.max + 1, 0, - (id - trace->syscalls.max) * sizeof(*sc)); - } else { - memset(nsyscalls, 0, (id + 1) * sizeof(*sc)); - } - - trace->syscalls.table = nsyscalls; - trace->syscalls.max = id; } sc = trace->syscalls.table + id; @@ -1819,11 +1807,11 @@ static struct syscall *trace__syscall_info(struct trace *trace, err = -EINVAL; - if ((id > trace->syscalls.max || trace->syscalls.table[id].name == NULL) && - (err = trace__read_syscall_info(trace, id)) != 0) + if (id > trace->sctbl->syscalls.max_id) goto out_cant_read; - if (id > trace->syscalls.max) + if ((trace->syscalls.table == NULL || trace->syscalls.table[id].name == NULL) && + (err = trace__read_syscall_info(trace, id)) != 0) goto out_cant_read; if (trace->syscalls.table[id].name == NULL) { @@ -1838,7 +1826,7 @@ out_cant_read: if (verbose > 0) { char sbuf[STRERR_BUFSIZE]; fprintf(trace->output, "Problems reading syscall %d: %d (%s)", id, -err, str_error_r(-err, sbuf, sizeof(sbuf))); - if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL) + if (id <= trace->sctbl->syscalls.max_id && trace->syscalls.table[id].name != NULL) fprintf(trace->output, "(%s)", trace->syscalls.table[id].name); fputs(" information\n", trace->output); } @@ -3922,9 +3910,6 @@ int cmd_trace(int argc, const char **argv) NULL }; struct trace trace = { - .syscalls = { - . max = -1, - }, .opts = { .target = { .uid = UINT_MAX, |