tools/testing/selftests/bpf/testing_helpers.h

Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/testing_helpers.h

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/testing_helpers.h
Extension
.h
Size
2026 bytes
Lines
65
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

#ifndef __TESTING_HELPERS_H
#define __TESTING_HELPERS_H

#include <stdbool.h>
#include <bpf/bpf.h>
#include <bpf/libbpf.h>
#include <time.h>

#define __TO_STR(x) #x
#define TO_STR(x) __TO_STR(x)

int parse_num_list(const char *s, bool **set, int *set_len);
__u32 link_info_prog_id(const struct bpf_link *link, struct bpf_link_info *info);
int bpf_prog_test_load(const char *file, enum bpf_prog_type type,
		       struct bpf_object **pobj, int *prog_fd);
int bpf_test_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
			  size_t insns_cnt, const char *license,
			  __u32 kern_version, char *log_buf,
			  size_t log_buf_sz);

/*
 * below function is exported for testing in prog_test test
 */
struct test_filter_set;
int parse_test_list(const char *s,
		    struct test_filter_set *test_set,
		    bool is_glob_pattern);
int parse_test_list_file(const char *path,
			 struct test_filter_set *test_set,
			 bool is_glob_pattern);

__u64 read_perf_max_sample_freq(void);
int load_bpf_testmod(bool verbose);
int unload_bpf_testmod(bool verbose);
int kern_sync_rcu(void);
int finit_module(int fd, const char *param_values, int flags);
int delete_module(const char *name, int flags);
int load_module(const char *path, bool verbose);
int load_module_params(const char *path, const char *param_values, bool verbose);
int try_unload_module(const char *name, int retries, bool verbose);
int unload_module(const char *name, bool verbose);

static inline __u64 get_time_ns(void)
{
	struct timespec t;

	clock_gettime(CLOCK_MONOTONIC, &t);

	return (u64)t.tv_sec * 1000000000 + t.tv_nsec;
}

struct bpf_insn;
/* Request BPF program instructions after all rewrites are applied,
 * e.g. verifier.c:convert_ctx_access() is done.
 */
int get_xlated_program(int fd_prog, struct bpf_insn **buf, __u32 *cnt);
int testing_prog_flags(void);
bool is_jit_enabled(void);
int stack_mprotect(void);

#endif /* __TESTING_HELPERS_H */

Annotation

Implementation Notes