b23316aabf
Currently the trampoline_count test doesn't include any fmod_ret bpf programs, fix it to make the test cover all possible trampoline program types. Since fmod_ret bpf programs can't be attached to __set_task_comm function, as it's neither whitelisted for error injection nor a security hook, change it to bpf_modify_return_test. This patch also does some other cleanups such as removing duplicate code, dropping inconsistent comments, etc. Signed-off-by: Yuntao Wang <ytcoode@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20220519150610.601313-1-ytcoode@gmail.com
25 lines
460 B
C
25 lines
460 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/bpf.h>
|
|
#include <bpf/bpf_helpers.h>
|
|
#include <bpf/bpf_tracing.h>
|
|
|
|
SEC("fentry/bpf_modify_return_test")
|
|
int BPF_PROG(fentry_test, int a, int *b)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
SEC("fmod_ret/bpf_modify_return_test")
|
|
int BPF_PROG(fmod_ret_test, int a, int *b, int ret)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
SEC("fexit/bpf_modify_return_test")
|
|
int BPF_PROG(fexit_test, int a, int *b, int ret)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
char _license[] SEC("license") = "GPL";
|