aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/tools/testing/selftests/bpf/progs/verifier_typedef.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/testing/selftests/bpf/progs/verifier_typedef.c')
-rw-r--r--tools/testing/selftests/bpf/progs/verifier_typedef.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/verifier_typedef.c b/tools/testing/selftests/bpf/progs/verifier_typedef.c
new file mode 100644
index 000000000000..08481cfaac4b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_typedef.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("fentry/bpf_fentry_test_sinfo")
+__description("typedef: resolve")
+__success __retval(0)
+__naked void resolve_typedef(void)
+{
+ asm volatile (" \
+ r1 = *(u64 *)(r1 +0); \
+ r2 = *(u64 *)(r1 +%[frags_offs]); \
+ r0 = 0; \
+ exit; \
+" :
+ : __imm_const(frags_offs,
+ offsetof(struct skb_shared_info, frags))
+ : __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";