veristat: add -d debug mode option to see debug libbpf log
Add -d option to allow requesting libbpf debug logs from veristat. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20230327185202.1929145-3-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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@ -135,6 +135,7 @@ static struct env {
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char **filenames;
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int filename_cnt;
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bool verbose;
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bool debug;
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bool quiet;
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int log_level;
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enum resfmt out_fmt;
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@ -169,7 +170,7 @@ static int libbpf_print_fn(enum libbpf_print_level level, const char *format, va
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{
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if (!env.verbose)
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return 0;
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if (level == LIBBPF_DEBUG /* && !env.verbose */)
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if (level == LIBBPF_DEBUG && !env.debug)
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return 0;
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return vfprintf(stderr, format, args);
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}
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@ -186,6 +187,7 @@ static const struct argp_option opts[] = {
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{ NULL, 'h', NULL, OPTION_HIDDEN, "Show the full help" },
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{ "verbose", 'v', NULL, 0, "Verbose mode" },
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{ "log-level", 'l', "LEVEL", 0, "Verifier log level (default 0 for normal mode, 1 for verbose mode)" },
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{ "debug", 'd', NULL, 0, "Debug mode (turns on libbpf debug logging)" },
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{ "quiet", 'q', NULL, 0, "Quiet mode" },
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{ "emit", 'e', "SPEC", 0, "Specify stats to be emitted" },
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{ "sort", 's', "SPEC", 0, "Specify sort order" },
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@ -212,6 +214,10 @@ static error_t parse_arg(int key, char *arg, struct argp_state *state)
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case 'v':
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env.verbose = true;
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break;
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case 'd':
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env.debug = true;
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env.verbose = true;
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break;
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case 'q':
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env.quiet = true;
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break;
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