From: Yonghong Song <yhs@fb.com>
To: <bpf@vger.kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>, <bpf@ietf.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Fangrui Song <maskray@google.com>, <kernel-team@fb.com>
Subject: [PATCH bpf-next v3 13/17] selftests/bpf: Add unit tests for new bswap insns
Date: Wed, 19 Jul 2023 17:02:12 -0700 [thread overview]
Message-ID: <20230720000212.110855-1-yhs@fb.com> (raw)
In-Reply-To: <20230720000103.99949-1-yhs@fb.com>
Add unit tests for bswap insns.
Signed-off-by: Yonghong Song <yhs@fb.com>
---
.../selftests/bpf/prog_tests/verifier.c | 2 +
.../selftests/bpf/progs/verifier_bswap.c | 45 +++++++++++++++++++
2 files changed, 47 insertions(+)
create mode 100644 tools/testing/selftests/bpf/progs/verifier_bswap.c
diff --git a/tools/testing/selftests/bpf/prog_tests/verifier.c b/tools/testing/selftests/bpf/prog_tests/verifier.c
index 037af7799cdf..885532540bc3 100644
--- a/tools/testing/selftests/bpf/prog_tests/verifier.c
+++ b/tools/testing/selftests/bpf/prog_tests/verifier.c
@@ -11,6 +11,7 @@
#include "verifier_bounds_deduction_non_const.skel.h"
#include "verifier_bounds_mix_sign_unsign.skel.h"
#include "verifier_bpf_get_stack.skel.h"
+#include "verifier_bswap.skel.h"
#include "verifier_btf_ctx_access.skel.h"
#include "verifier_cfg.skel.h"
#include "verifier_cgroup_inv_retcode.skel.h"
@@ -115,6 +116,7 @@ void test_verifier_bounds_deduction(void) { RUN(verifier_bounds_deduction);
void test_verifier_bounds_deduction_non_const(void) { RUN(verifier_bounds_deduction_non_const); }
void test_verifier_bounds_mix_sign_unsign(void) { RUN(verifier_bounds_mix_sign_unsign); }
void test_verifier_bpf_get_stack(void) { RUN(verifier_bpf_get_stack); }
+void test_verifier_bswap(void) { RUN(verifier_bswap); }
void test_verifier_btf_ctx_access(void) { RUN(verifier_btf_ctx_access); }
void test_verifier_cfg(void) { RUN(verifier_cfg); }
void test_verifier_cgroup_inv_retcode(void) { RUN(verifier_cgroup_inv_retcode); }
diff --git a/tools/testing/selftests/bpf/progs/verifier_bswap.c b/tools/testing/selftests/bpf/progs/verifier_bswap.c
new file mode 100644
index 000000000000..b85474a46296
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_bswap.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("BSWAP, 16")
+__success __success_unpriv __retval(0x23ff)
+__naked void bswap_16(void)
+{
+ asm volatile (" \
+ r0 = 0xff23; \
+ r0 = bswap16 r0; \
+ exit; \
+" ::: __clobber_all);
+}
+
+SEC("socket")
+__description("BSWAP, 32")
+__success __success_unpriv __retval(0x23ff0000)
+__naked void bswap_32(void)
+{
+ asm volatile (" \
+ r0 = 0xff23; \
+ r0 = bswap32 r0; \
+ exit; \
+" ::: __clobber_all);
+}
+
+SEC("socket")
+__description("BSWAP, 64")
+__success __success_unpriv __retval(0x34ff12ff)
+__naked void bswap_64(void)
+{
+ asm volatile (" \
+ r0 = %[u64_val] ll; \
+ r0 = bswap64 r0; \
+ exit; \
+" :
+ : [u64_val]"i"(0xff12ff34ff56ff78ull)
+ : __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
--
2.34.1
next prev parent reply other threads:[~2023-07-20 0:03 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-20 0:01 [PATCH bpf-next v3 00/17] bpf: Support new insns from cpu v4 Yonghong Song
2023-07-20 0:01 ` [PATCH bpf-next v3 01/17] bpf: Support new sign-extension load insns Yonghong Song
2023-07-20 20:33 ` Eduard Zingerman
2023-07-24 4:03 ` [Bpf] " Yonghong Song
2023-07-24 4:03 ` Yonghong Song
2023-07-20 0:01 ` [PATCH bpf-next v3 02/17] bpf: Support new sign-extension mov insns Yonghong Song
2023-07-20 0:01 ` [PATCH bpf-next v3 03/17] bpf: Handle sign-extenstin ctx member accesses Yonghong Song
2023-07-20 0:01 ` [PATCH bpf-next v3 04/17] bpf: Support new unconditional bswap instruction Yonghong Song
2023-07-20 0:01 ` [PATCH bpf-next v3 05/17] bpf: Support new signed div/mod instructions Yonghong Song
2023-07-20 0:01 ` [Bpf] " Yonghong Song
2023-07-20 0:01 ` [PATCH bpf-next v3 06/17] bpf: Fix jit blinding with new sdiv/smov insns Yonghong Song
2023-07-20 0:01 ` [PATCH bpf-next v3 07/17] bpf: Support new 32bit offset jmp instruction Yonghong Song
2023-07-20 0:01 ` [PATCH bpf-next v3 08/17] bpf: Add kernel/bpftool asm support for new instructions Yonghong Song
2023-07-21 14:36 ` Quentin Monnet
2023-07-21 14:36 ` [Bpf] " Quentin Monnet
2023-07-20 0:01 ` [PATCH bpf-next v3 09/17] selftests/bpf: Fix a test_verifier failure Yonghong Song
2023-07-20 0:01 ` [PATCH bpf-next v3 10/17] selftests/bpf: Add a cpuv4 test runner for cpu=v4 testing Yonghong Song
2023-07-20 0:02 ` [PATCH bpf-next v3 11/17] selftests/bpf: Add unit tests for new sign-extension load insns Yonghong Song
2023-07-20 6:31 ` [Bpf] " Yonghong Song
2023-07-20 6:31 ` Yonghong Song
2023-07-20 6:36 ` [Bpf] " Yonghong Song
2023-07-20 6:36 ` Yonghong Song
2023-07-20 0:02 ` [PATCH bpf-next v3 12/17] selftests/bpf: Add unit tests for new sign-extension mov insns Yonghong Song
2023-07-20 0:02 ` Yonghong Song [this message]
2023-07-20 0:02 ` [PATCH bpf-next v3 14/17] selftests/bpf: Add unit tests for new sdiv/smod insns Yonghong Song
2023-07-20 0:02 ` [PATCH bpf-next v3 15/17] selftests/bpf: Add unit tests for new gotol insn Yonghong Song
2023-07-20 0:02 ` [Bpf] " Yonghong Song
2023-07-20 0:02 ` [PATCH bpf-next v3 16/17] selftests/bpf: Test ldsx with more complex cases Yonghong Song
2023-07-20 0:02 ` [PATCH bpf-next v3 17/17] docs/bpf: Add documentation for new instructions Yonghong Song
2023-07-20 20:35 ` [PATCH bpf-next v3 00/17] bpf: Support new insns from cpu v4 Eduard Zingerman
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