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* selftests/bpf: add tests for the "module: Function" syntaxViktor Malik2024-05-011-0/+6
| | | | | | | | | | | The previous patch added support for the "module:function" syntax for tracing programs. This adds tests for explicitly specifying the module name via the SEC macro and via the bpf_program__set_attach_target call. Signed-off-by: Viktor Malik <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/8a076168ed847f7c8a6c25715737b1fea84e38be.1714469650.git.vmalik@redhat.com
* selftests/bpf: Use un/load_bpf_testmod functions in testsJiri Olsa2023-05-171-8/+4
| | | | | | | | | | Now that we have un/load_bpf_testmod helpers in testing_helpers.h, we can use it in other tests and save some lines. Acked-by: David Vernet <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
* selftests/bpf: Add kprobe_multi check to module attach testJiri Olsa2022-10-251-0/+7
| | | | | | | | | | Adding test that makes sure the kernel module won't be removed if there's kprobe multi link defined on top of it. Acked-by: Song Liu <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
* bpf/selftests: Add test for writable bare tracepointHou Tao2021-10-081-0/+35
| | | | | | | | | | | | | Add a writable bare tracepoint in bpf_testmod module, and trigger its calling when reading /sys/kernel/bpf_testmod with a specific buffer length. The reading will return the value in writable context if the early return flag is enabled in writable context. Signed-off-by: Hou Tao <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
* selftests/bpf: Add test for bpf_get_branch_snapshotSong Liu2021-09-131-39/+0
| | | | | | | | | | | | This test uses bpf_get_branch_snapshot from a fexit program. The test uses a target function (bpf_testmod_loop_test) and compares the record against kallsyms. If there isn't enough record matching kallsyms, the test fails. Signed-off-by: Song Liu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Acked-by: John Fastabend <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
* selftests/bpf: Test that module can't be unloaded with attached trampolineJiri Olsa2021-04-261-0/+23
| | | | | | | | | | Adding test to verify that once we attach module's trampoline, the module can't be unloaded. Signed-off-by: Jiri Olsa <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
* selftests: bpf: Add a new test for bare tracepointsQais Yousef2021-01-201-0/+27
| | | | | | | | | | Reuse module_attach infrastructure to add a new bare tracepoint to check we can attach to it as a raw tracepoint. Signed-off-by: Qais Yousef <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
* selftests/bpf: Add set_attach_target() API selftest for module targetAndrii Nakryiko2020-12-141-1/+10
| | | | | | | | | Add test for bpf_program__set_attach_target() API, validating it can find kernel module fentry target. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
* selftests/bpf: Add fentry/fexit/fmod_ret selftest for kernel moduleAndrii Nakryiko2020-12-041-0/+53
Add new selftest checking attachment of fentry/fexit/fmod_ret (and raw tracepoint ones for completeness) BPF programs to kernel module function. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
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