[PATCH v4 bpf-next 2/3] veristat: add -d debug mode option to see debug libbpf log

Andrii Nakryiko
2023-03-27T18:52:19Z

Add -d option to allow requesting libbpf debug logs from veristat.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
---
tools/testing/selftests/bpf/veristat.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/veristat.c b/tools/testing/selftests/bpf/veristat.c
index 83231456d3c5..263df32fbda8 100644
--- a/tools/testing/selftests/bpf/veristat.c
+++ b/tools/testing/selftests/bpf/veristat.c
@@ -135,6 +135,7 @@ static struct env {
char **filenames;
int filename_cnt;
bool verbose;
+ bool debug;
bool quiet;
int log_level;
enum resfmt out_fmt;
@@ -169,7 +170,7 @@ static int libbpf_print_fn(enum libbpf_print_level level, const char *format, va
{
if (!env.verbose)
return 0;
- if (level == LIBBPF_DEBUG /* && !env.verbose */)
+ if (level == LIBBPF_DEBUG && !env.debug)
return 0;
return vfprintf(stderr, format, args);
}
@@ -186,6 +187,7 @@ static const struct argp_option opts[] = {
{ NULL, 'h', NULL, OPTION_HIDDEN, "Show the full help" },
{ "verbose", 'v', NULL, 0, "Verbose mode" },
{ "log-level", 'l', "LEVEL", 0, "Verifier log level (default 0 for normal mode, 1 for verbose mode)" },
+ { "debug", 'd', NULL, 0, "Debug mode (turns on libbpf debug logging)" },
{ "quiet", 'q', NULL, 0, "Quiet mode" },
{ "emit", 'e', "SPEC", 0, "Specify stats to be emitted" },
{ "sort", 's', "SPEC", 0, "Specify sort order" },
@@ -212,6 +214,10 @@ static error_t parse_arg(int key, char *arg, struct argp_state *state)
case 'v':
env.verbose = true;
break;
+ case 'd':
+ env.debug = true;
+ env.verbose = true;
+ break;
case 'q':
env.quiet = true;
break;
--
2.34.1