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| author | Eduard Zingerman <eddyz87@gmail.com> | 2023-04-21 20:42:14 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-04-21 22:17:51 +0300 |
| commit | 37467c79e16a7b569fe5c1197e2ed507f72d2ab7 (patch) | |
| tree | 46b93263087b02938ddead6f19009d2582fafca5 /tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c | |
| parent | 965a3f913e723e2da9c0ec21b9825b583b0777e1 (diff) | |
| download | linux-37467c79e16a7b569fe5c1197e2ed507f72d2ab7.tar.xz | |
selftests/bpf: verifier/btf_ctx_access converted to inline assembly
Test verifier/btf_ctx_access automatically converted to use inline assembly.
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20230421174234.2391278-5-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c b/tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c new file mode 100644 index 000000000000..a570e48b917a --- /dev/null +++ b/tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Converted from tools/testing/selftests/bpf/verifier/btf_ctx_access.c */ + +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include "bpf_misc.h" + +SEC("fentry/bpf_modify_return_test") +__description("btf_ctx_access accept") +__success __retval(0) +__naked void btf_ctx_access_accept(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + 8); /* load 2nd argument value (int pointer) */\ + r0 = 0; \ + exit; \ +" ::: __clobber_all); +} + +SEC("fentry/bpf_fentry_test9") +__description("btf_ctx_access u32 pointer accept") +__success __retval(0) +__naked void ctx_access_u32_pointer_accept(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + 0); /* load 1nd argument value (u32 pointer) */\ + r0 = 0; \ + exit; \ +" ::: __clobber_all); +} + +char _license[] SEC("license") = "GPL"; |