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

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

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/prog_tests/tracing_struct.c
Extension
.c
Size
4514 bytes
Lines
151
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

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */

#include <test_progs.h>
#include "tracing_struct.skel.h"
#include "tracing_struct_many_args.skel.h"

static void test_struct_args(void)
{
	struct tracing_struct *skel;
	int err;

	skel = tracing_struct__open_and_load();
	if (!ASSERT_OK_PTR(skel, "tracing_struct__open_and_load"))
		return;

	err = tracing_struct__attach(skel);
	if (!ASSERT_OK(err, "tracing_struct__attach"))
		goto destroy_skel;

	ASSERT_OK(trigger_module_test_read(256), "trigger_read");

	ASSERT_EQ(skel->bss->t1_a_a, 2, "t1:a.a");
	ASSERT_EQ(skel->bss->t1_a_b, 3, "t1:a.b");
	ASSERT_EQ(skel->bss->t1_b, 1, "t1:b");
	ASSERT_EQ(skel->bss->t1_c, 4, "t1:c");

	ASSERT_EQ(skel->bss->t1_nregs, 4, "t1 nregs");
	ASSERT_EQ(skel->bss->t1_reg0, 2, "t1 reg0");
	ASSERT_EQ(skel->bss->t1_reg1, 3, "t1 reg1");
	ASSERT_EQ(skel->bss->t1_reg2, 1, "t1 reg2");
	ASSERT_EQ(skel->bss->t1_reg3, 4, "t1 reg3");
	ASSERT_EQ(skel->bss->t1_ret, 10, "t1 ret");

	ASSERT_EQ(skel->bss->t2_a, 1, "t2:a");
	ASSERT_EQ(skel->bss->t2_b_a, 2, "t2:b.a");
	ASSERT_EQ(skel->bss->t2_b_b, 3, "t2:b.b");
	ASSERT_EQ(skel->bss->t2_c, 4, "t2:c");
	ASSERT_EQ(skel->bss->t2_ret, 10, "t2 ret");

	ASSERT_EQ(skel->bss->t3_a, 1, "t3:a");
	ASSERT_EQ(skel->bss->t3_b, 4, "t3:b");
	ASSERT_EQ(skel->bss->t3_c_a, 2, "t3:c.a");
	ASSERT_EQ(skel->bss->t3_c_b, 3, "t3:c.b");
	ASSERT_EQ(skel->bss->t3_ret, 10, "t3 ret");

	ASSERT_EQ(skel->bss->t4_a_a, 10, "t4:a.a");
	ASSERT_EQ(skel->bss->t4_b, 1, "t4:b");
	ASSERT_EQ(skel->bss->t4_c, 2, "t4:c");
	ASSERT_EQ(skel->bss->t4_d, 3, "t4:d");
	ASSERT_EQ(skel->bss->t4_e_a, 2, "t4:e.a");
	ASSERT_EQ(skel->bss->t4_e_b, 3, "t4:e.b");
	ASSERT_EQ(skel->bss->t4_ret, 21, "t4 ret");

	ASSERT_EQ(skel->bss->t5_ret, 1, "t5 ret");

	ASSERT_EQ(skel->bss->t6, 1, "t6 ret");

destroy_skel:
	tracing_struct__destroy(skel);
}

static void test_struct_many_args(void)
{
	struct tracing_struct_many_args *skel;
	int err;

	skel = tracing_struct_many_args__open_and_load();
	if (!ASSERT_OK_PTR(skel, "tracing_struct_many_args__open_and_load"))
		return;

	err = tracing_struct_many_args__attach(skel);
	if (!ASSERT_OK(err, "tracing_struct_many_args__attach"))
		goto destroy_skel;

	ASSERT_OK(trigger_module_test_read(256), "trigger_read");

	ASSERT_EQ(skel->bss->t7_a, 16, "t7:a");
	ASSERT_EQ(skel->bss->t7_b, 17, "t7:b");
	ASSERT_EQ(skel->bss->t7_c, 18, "t7:c");
	ASSERT_EQ(skel->bss->t7_d, 19, "t7:d");
	ASSERT_EQ(skel->bss->t7_e, 20, "t7:e");
	ASSERT_EQ(skel->bss->t7_f_a, 21, "t7:f.a");
	ASSERT_EQ(skel->bss->t7_f_b, 22, "t7:f.b");
	ASSERT_EQ(skel->bss->t7_ret, 133, "t7 ret");

	ASSERT_EQ(skel->bss->t8_a, 16, "t8:a");
	ASSERT_EQ(skel->bss->t8_b, 17, "t8:b");
	ASSERT_EQ(skel->bss->t8_c, 18, "t8:c");
	ASSERT_EQ(skel->bss->t8_d, 19, "t8:d");

Annotation

Implementation Notes