diff mbox series

[bpf-next,v3] selftests/bpf: Test btf__load_vmlinux_btf/btf__load_module_btf APIs

Message ID 20210815081035.205879-1-hengqi.chen@gmail.com (mailing list archive)
State Accepted
Commit edce1a248670397f8d0be1f6967eab3c5c082013
Delegated to: BPF
Headers show
Series [bpf-next,v3] selftests/bpf: Test btf__load_vmlinux_btf/btf__load_module_btf APIs | expand

Checks

Context Check Description
netdev/cover_letter success Link
netdev/fixes_present success Link
netdev/patch_count success Link
netdev/tree_selection success Clearly marked for bpf-next
netdev/subject_prefix success Link
netdev/cc_maintainers warning 6 maintainers not CCed: songliubraving@fb.com shuah@kernel.org kafai@fb.com netdev@vger.kernel.org linux-kselftest@vger.kernel.org kpsingh@kernel.org
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch fail ERROR: Bad function definition - void test_btf_module() should probably be void test_btf_module(void) WARNING: Improper SPDX comment style for 'tools/testing/selftests/bpf/prog_tests/btf_module.c', please use '//' instead WARNING: Missing or malformed SPDX-License-Identifier tag in line 1 WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link

Commit Message

Hengqi Chen Aug. 15, 2021, 8:10 a.m. UTC
Add test for btf__load_vmlinux_btf/btf__load_module_btf APIs. The test
loads bpf_testmod module BTF and check existence of a symbol which is
known to exist.

Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
---
 .../selftests/bpf/prog_tests/btf_module.c     | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/btf_module.c

Comments

patchwork-bot+netdevbpf@kernel.org Aug. 17, 2021, 1:40 a.m. UTC | #1
Hello:

This patch was applied to bpf/bpf-next.git (refs/heads/master):

On Sun, 15 Aug 2021 16:10:35 +0800 you wrote:
> Add test for btf__load_vmlinux_btf/btf__load_module_btf APIs. The test
> loads bpf_testmod module BTF and check existence of a symbol which is
> known to exist.
> 
> Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
> ---
>  .../selftests/bpf/prog_tests/btf_module.c     | 34 +++++++++++++++++++
>  1 file changed, 34 insertions(+)
>  create mode 100644 tools/testing/selftests/bpf/prog_tests/btf_module.c

Here is the summary with links:
  - [bpf-next,v3] selftests/bpf: Test btf__load_vmlinux_btf/btf__load_module_btf APIs
    https://git.kernel.org/bpf/bpf-next/c/edce1a248670

You are awesome, thank you!
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diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/prog_tests/btf_module.c b/tools/testing/selftests/bpf/prog_tests/btf_module.c
new file mode 100644
index 000000000000..2239d1fe0332
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_module.c
@@ -0,0 +1,34 @@ 
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2021 Hengqi Chen */
+
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+static const char *module_name = "bpf_testmod";
+static const char *symbol_name = "bpf_testmod_test_read";
+
+void test_btf_module()
+{
+	struct btf *vmlinux_btf, *module_btf;
+	__s32 type_id;
+
+	if (!env.has_testmod) {
+		test__skip();
+		return;
+	}
+
+	vmlinux_btf = btf__load_vmlinux_btf();
+	if (!ASSERT_OK_PTR(vmlinux_btf, "could not load vmlinux BTF"))
+		return;
+
+	module_btf = btf__load_module_btf(module_name, vmlinux_btf);
+	if (!ASSERT_OK_PTR(module_btf, "could not load module BTF"))
+		goto cleanup;
+
+	type_id = btf__find_by_name(module_btf, symbol_name);
+	ASSERT_GT(type_id, 0, "func not found");
+
+cleanup:
+	btf__free(module_btf);
+	btf__free(vmlinux_btf);
+}