Current code:
for (j = 0; j < argc; j++, i++)
rec_argv[i] = argv[j];
if (verbose > 0) {
pr_debug("calling: record ");
while (rec_argv[j]) {
pr_debug("%s ", rec_argv[j]);
j++;
}
pr_debug("\n");
}
The entries of argv[] are copied to the end of rec_argv[], not
copied to the beginning of rec_argv[]. So the index j at
rec_argv[] doesn't point to the first event.
Now we record the start index and end index for events in rec_argv[],
and print them if verbose is enabled.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210527001610.10553-7-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
{
int rec_argc, i = 0, j, tmp_nr = 0;
+ int start, end;
const char **rec_argv;
char **rec_tmp;
int ret;
if (mem->data_page_size)
rec_argv[i++] = "--data-page-size";
+ start = i;
ret = perf_mem_events__record_args(rec_argv, &i, rec_tmp, &tmp_nr);
if (ret)
goto out;
+ end = i;
if (all_user)
rec_argv[i++] = "--all-user";
if (verbose > 0) {
pr_debug("calling: record ");
- while (rec_argv[j]) {
+ for (j = start; j < end; j++)
pr_debug("%s ", rec_argv[j]);
- j++;
- }
+
pr_debug("\n");
}