diff options
| author | Alan Maguire <alan.maguire@oracle.com> | 2022-03-30 16:26:40 +0100 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-04-03 19:56:01 -0700 |
| commit | 579c3196b21800538e0cfd512a05619ee80fb19a (patch) | |
| tree | d7a5856aa921c106e1faf8f8c33cba8450292298 /tools/testing/selftests/bpf/progs/test_uprobe_autoattach.c | |
| parent | ba7499bc9d52f7ea93301a48c05caa370c68b213 (diff) | |
selftests/bpf: Add tests for uprobe auto-attach via skeleton
tests that verify auto-attach works for function entry/return for
local functions in program and library functions in a library.
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/1648654000-21758-6-git-send-email-alan.maguire@oracle.com
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_uprobe_autoattach.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_uprobe_autoattach.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_uprobe_autoattach.c b/tools/testing/selftests/bpf/progs/test_uprobe_autoattach.c new file mode 100644 index 000000000000..b442fb5ef54b --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_uprobe_autoattach.c @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2022, Oracle and/or its affiliates. */ + +#include <linux/ptrace.h> +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +int uprobe_byname_res = 0; +int uretprobe_byname_res = 0; +int uprobe_byname2_res = 0; +int uretprobe_byname2_res = 0; + +/* This program cannot auto-attach, but that should not stop other + * programs from attaching. + */ +SEC("uprobe") +int handle_uprobe_noautoattach(struct pt_regs *ctx) +{ + return 0; +} + +SEC("uprobe//proc/self/exe:autoattach_trigger_func") +int handle_uprobe_byname(struct pt_regs *ctx) +{ + uprobe_byname_res = 1; + return 0; +} + +SEC("uretprobe//proc/self/exe:autoattach_trigger_func") +int handle_uretprobe_byname(struct pt_regs *ctx) +{ + uretprobe_byname_res = 2; + return 0; +} + + +SEC("uprobe/libc.so.6:malloc") +int handle_uprobe_byname2(struct pt_regs *ctx) +{ + uprobe_byname2_res = 3; + return 0; +} + +SEC("uretprobe/libc.so.6:free") +int handle_uretprobe_byname2(struct pt_regs *ctx) +{ + uretprobe_byname2_res = 4; + return 0; +} + +char _license[] SEC("license") = "GPL"; |