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-rw-r--r--tools/bpf/bpftool/main.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c
index 28237d7cef67..473791e87f7d 100644
--- a/tools/bpf/bpftool/main.c
+++ b/tools/bpf/bpftool/main.c
@@ -31,6 +31,7 @@ bool block_mount;
bool verifier_logs;
bool relaxed_maps;
bool use_loader;
+bool legacy_libbpf;
struct btf *base_btf;
struct hashmap *refs_table;
@@ -396,6 +397,7 @@ int main(int argc, char **argv)
{ "debug", no_argument, NULL, 'd' },
{ "use-loader", no_argument, NULL, 'L' },
{ "base-btf", required_argument, NULL, 'B' },
+ { "legacy", no_argument, NULL, 'l' },
{ 0 }
};
int opt, ret;
@@ -408,7 +410,7 @@ int main(int argc, char **argv)
bin_name = argv[0];
opterr = 0;
- while ((opt = getopt_long(argc, argv, "VhpjfLmndB:",
+ while ((opt = getopt_long(argc, argv, "VhpjfLmndB:l",
options, NULL)) >= 0) {
switch (opt) {
case 'V':
@@ -454,6 +456,9 @@ int main(int argc, char **argv)
case 'L':
use_loader = true;
break;
+ case 'l':
+ legacy_libbpf = true;
+ break;
default:
p_err("unrecognized option '%s'", argv[optind - 1]);
if (json_output)
@@ -463,6 +468,12 @@ int main(int argc, char **argv)
}
}
+ if (!legacy_libbpf) {
+ ret = libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+ if (ret)
+ p_err("failed to enable libbpf strict mode: %d", ret);
+ }
+
argc -= optind;
argv += optind;
if (argc < 0)