Viktor Malik
960635887c
selftests/bpf: add tests for the "module: Function" syntax
...
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 <vmalik@redhat.com >
Signed-off-by: Andrii Nakryiko <andrii@kernel.org >
Acked-by: Andrii Nakryiko <andrii@kernel.org >
Link: https://lore.kernel.org/bpf/8a076168ed847f7c8a6c25715737b1fea84e38be.1714469650.git.vmalik@redhat.com
2024-05-01 09:53:48 -07:00
Jiri Olsa
e697d8dceb
selftests/bpf: Add kprobe_multi check to module attach test
...
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 <song@kernel.org >
Signed-off-by: Jiri Olsa <jolsa@kernel.org >
Link: https://lore.kernel.org/r/20221025134148.3300700-8-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org >
2022-10-25 10:14:51 -07:00
Andrii Nakryiko
32c03c4954
selftests/bpf: Use target-less SEC() definitions in various tests
...
Add new or modify existing SEC() definitions to be target-less and
validate that libbpf handles such program definitions correctly.
For kprobe/kretprobe we also add explicit test that generic
bpf_program__attach() works in cases when kprobe definition contains
proper target. It wasn't previously tested as selftests code always
explicitly specified the target regardless.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org >
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net >
Acked-by: Song Liu <songliubraving@fb.com >
Link: https://lore.kernel.org/bpf/20220428185349.3799599-4-andrii@kernel.org
2022-04-28 23:46:04 +02:00
Alexei Starovoitov
7edc3fcbf9
selftest/bpf: Add a test that reads various addresses.
...
Add a function to bpf_testmod that returns invalid kernel and user addresses.
Then attach an fexit program to that function that tries to read
memory through these addresses.
This logic checks that bpf_probe_read_kernel and BPF_PROBE_MEM logic is sane.
Signed-off-by: Alexei Starovoitov <ast@kernel.org >
Acked-by: Daniel Borkmann <daniel@iogearbox.net >
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net >
2021-12-16 21:41:13 +01:00
Hou Tao
fa7f17d066
bpf/selftests: Add test for writable bare tracepoint
...
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 <houtao1@huawei.com >
Signed-off-by: Andrii Nakryiko <andrii@kernel.org >
Acked-by: Andrii Nakryiko <andrii@kernel.org >
Link: https://lore.kernel.org/bpf/20211004094857.30868-4-hotforest@gmail.com
2021-10-08 13:22:57 -07:00
Qais Yousef
407be92206
selftests: bpf: Add a new test for bare tracepoints
...
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 <qais.yousef@arm.com >
Signed-off-by: Alexei Starovoitov <ast@kernel.org >
Acked-by: Yonghong Song <yhs@fb.com >
Link: https://lore.kernel.org/bpf/20210119122237.2426878-3-qais.yousef@arm.com
2021-01-20 14:14:05 -08:00
Andrii Nakryiko
2e33f831fc
selftests/bpf: Add set_attach_target() API selftest for module target
...
Add test for bpf_program__set_attach_target() API, validating it can find
kernel module fentry target.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org >
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net >
Link: https://lore.kernel.org/bpf/20201211215825.3646154-3-andrii@kernel.org
2020-12-14 16:39:42 +01:00
Andrii Nakryiko
1e38abefcf
selftests/bpf: Add fentry/fexit/fmod_ret selftest for kernel module
...
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 <andrii@kernel.org >
Signed-off-by: Alexei Starovoitov <ast@kernel.org >
Link: https://lore.kernel.org/bpf/20201203204634.1325171-15-andrii@kernel.org
2020-12-03 17:38:21 -08:00
