linux/kernel/trace/trace_probe_kernel.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __TRACE_PROBE_KERNEL_H_
#define __TRACE_PROBE_KERNEL_H_

/*
 * This depends on trace_probe.h, but can not include it due to
 * the way trace_probe_tmpl.h is used by trace_kprobe.c and trace_eprobe.c.
 * Which means that any other user must include trace_probe.h before including
 * this file.
 */
/* Return the length of string -- including null terminal byte */
static nokprobe_inline int
fetch_store_strlen_user(unsigned long addr)
{ … }

/* Return the length of string -- including null terminal byte */
static nokprobe_inline int
fetch_store_strlen(unsigned long addr)
{ … }

static nokprobe_inline void set_data_loc(int ret, void *dest, void *__dest, void *base)
{ … }

/*
 * Fetch a null-terminated string from user. Caller MUST set *(u32 *)buf
 * with max length and relative data location.
 */
static nokprobe_inline int
fetch_store_string_user(unsigned long addr, void *dest, void *base)
{ … }

/*
 * Fetch a null-terminated string. Caller MUST set *(u32 *)buf with max
 * length and relative data location.
 */
static nokprobe_inline int
fetch_store_string(unsigned long addr, void *dest, void *base)
{ … }

static nokprobe_inline int
probe_mem_read_user(void *dest, void *src, size_t size)
{ … }

static nokprobe_inline int
probe_mem_read(void *dest, void *src, size_t size)
{ … }

#endif /* __TRACE_PROBE_KERNEL_H_ */