Commit 954fa97e authored by Emil Tsalapatis's avatar Emil Tsalapatis Committed by Alexei Starovoitov
Browse files

selftests/bpf: Add selftests for bpf_stream_print_stack 



Add selftests for the new bpf_stream_print_stack kfunc.

Signed-off-by: default avatarEmil Tsalapatis <emil@etsalapatis.com>
Acked-by: default avatarKumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20260203180424.14057-3-emil@etsalapatis.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 63328bb2

tools/testing/selftests/bpf/progs/stream.c

+21 −0
Original line number Diff line number Diff line
@@ -234,4 +234,25 @@ int stream_arena_callback_fault(void *ctx) 
	return 0;

}



SEC("syscall")

__arch_x86_64

__arch_arm64

__success __retval(0)

__stderr("CPU: {{[0-9]+}} UID: 0 PID: {{[0-9]+}} Comm: {{.*}}")

__stderr("Call trace:\n"

"{{([a-zA-Z_][a-zA-Z0-9_]*\\+0x[0-9a-fA-F]+/0x[0-9a-fA-F]+\n"

"|[ \t]+[^\n]+\n)*}}")

int stream_print_stack_kfunc(void *ctx)

{

	return bpf_stream_print_stack(BPF_STDERR);

}



SEC("syscall")

__success __retval(-2)

int stream_print_stack_invalid_id(void *ctx)

{

	/* Try to pass an invalid stream ID. */

	return bpf_stream_print_stack((enum bpf_stream_id)0xbadcafe);

}



char _license[] SEC("license") = "GPL";