tools/testing/selftests/bpf/prog_tests/prog_array_init.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/prog_tests/prog_array_init.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/prog_tests/prog_array_init.c
Extension
.c
Size
766 bytes
Lines
33
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#include <test_progs.h>
#include "test_prog_array_init.skel.h"

void test_prog_array_init(void)
{
	struct test_prog_array_init *skel;
	int err;

	skel = test_prog_array_init__open();
	if (!ASSERT_OK_PTR(skel, "could not open BPF object"))
		return;

	skel->rodata->my_pid = getpid();

	err = test_prog_array_init__load(skel);
	if (!ASSERT_OK(err, "could not load BPF object"))
		goto cleanup;

	skel->links.entry = bpf_program__attach_raw_tracepoint(skel->progs.entry, "sys_enter");
	if (!ASSERT_OK_PTR(skel->links.entry, "could not attach BPF program"))
		goto cleanup;

	usleep(1);

	ASSERT_EQ(skel->bss->value, 42, "unexpected value");

cleanup:
	test_prog_array_init__destroy(skel);
}

Annotation

Implementation Notes