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-rw-r--r--kernel/bpf/log.c15
-rw-r--r--tools/testing/selftests/bpf/prog_tests/log_fixup.c4
2 files changed, 14 insertions, 5 deletions
diff --git a/kernel/bpf/log.c b/kernel/bpf/log.c
index 594a234f122b..cc789efc7f43 100644
--- a/kernel/bpf/log.c
+++ b/kernel/bpf/log.c
@@ -9,6 +9,7 @@
#include <linux/bpf.h>
#include <linux/bpf_verifier.h>
#include <linux/math64.h>
+#include <linux/string.h>
#define verbose(env, fmt, args...) bpf_verifier_log_write(env, fmt, ##args)
@@ -362,6 +363,8 @@ __printf(3, 4) void verbose_linfo(struct bpf_verifier_env *env,
const char *prefix_fmt, ...)
{
const struct bpf_line_info *linfo;
+ const struct btf *btf;
+ const char *s, *fname;
if (!bpf_verifier_log_needed(&env->log))
return;
@@ -378,9 +381,15 @@ __printf(3, 4) void verbose_linfo(struct bpf_verifier_env *env,
va_end(args);
}
- verbose(env, "%s\n",
- ltrim(btf_name_by_offset(env->prog->aux->btf,
- linfo->line_off)));
+ btf = env->prog->aux->btf;
+ s = ltrim(btf_name_by_offset(btf, linfo->line_off));
+ verbose(env, "%s", s); /* source code line */
+
+ s = btf_name_by_offset(btf, linfo->file_name_off);
+ /* leave only file name */
+ fname = strrchr(s, '/');
+ fname = fname ? fname + 1 : s;
+ verbose(env, " @ %s:%u\n", fname, BPF_LINE_INFO_LINE_NUM(linfo->line_col));
env->prev_linfo = linfo;
}
diff --git a/tools/testing/selftests/bpf/prog_tests/log_fixup.c b/tools/testing/selftests/bpf/prog_tests/log_fixup.c
index 7a3fa2ff567b..90a98e23be61 100644
--- a/tools/testing/selftests/bpf/prog_tests/log_fixup.c
+++ b/tools/testing/selftests/bpf/prog_tests/log_fixup.c
@@ -169,9 +169,9 @@ void test_log_fixup(void)
if (test__start_subtest("bad_core_relo_trunc_none"))
bad_core_relo(0, TRUNC_NONE /* full buf */);
if (test__start_subtest("bad_core_relo_trunc_partial"))
- bad_core_relo(280, TRUNC_PARTIAL /* truncate original log a bit */);
+ bad_core_relo(300, TRUNC_PARTIAL /* truncate original log a bit */);
if (test__start_subtest("bad_core_relo_trunc_full"))
- bad_core_relo(220, TRUNC_FULL /* truncate also libbpf's message patch */);
+ bad_core_relo(240, TRUNC_FULL /* truncate also libbpf's message patch */);
if (test__start_subtest("bad_core_relo_subprog"))
bad_core_relo_subprog();
if (test__start_subtest("missing_map"))