include/wrapper/kprobes.h

   1 /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
   2  *
   3  * src/wrapper/kprobes.h
   4  *
   5  * Copyright (C) 2021 Michael Jeanson <mjeanson@efficios.com>
   6  */
   7
   8 #ifndef _LTTNG_WRAPPER_KPROBES_H
   9 #define _LTTNG_WRAPPER_KPROBES_H
  10
  11 #include <linux/kprobes.h>
  12 #include <lttng/kernel-version.h>
  13
  14 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,11,0))
  15
  16 static inline
  17 struct kretprobe *lttng_get_kretprobe(struct kretprobe_instance *ri)
  18 {
  19         return get_kretprobe(ri);
  20 }
  21
  22 #else /* LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,11,0) */
  23
  24 static inline
  25 struct kretprobe *lttng_get_kretprobe(struct kretprobe_instance *ri)
  26 {
  27         return ri->rp;
  28 }
  29
  30 #endif /* LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,11,0) */
  31
  32
  33 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,18,0) || \
  34     LTTNG_RHEL_KERNEL_RANGE(5,14,0,163,0,0, 5,15,0,0,0,0))
  35 static inline
  36 unsigned long lttng_get_kretprobe_retaddr(struct kretprobe_instance *ri)
  37 {
  38         return get_kretprobe_retaddr(ri);
  39 }
  40
  41 #else
  42
  43 static inline
  44 unsigned long lttng_get_kretprobe_retaddr(struct kretprobe_instance *ri)
  45 {
  46         return (unsigned long) ri->ret_addr;
  47 }
  48 #endif
  49
  50 #endif /* _LTTNG_WRAPPER_KPROBES_H */