include/rseq/utils.h

   1 /* SPDX-License-Identifier: MIT */
   2 /* SPDX-FileCopyrightText: 2016-2022 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> */
   3
   4 /*
   5  * rseq/utils.h
   6  */
   7
   8 #ifndef _RSEQ_UTILS_H
   9 #define _RSEQ_UTILS_H
  10
  11 #include <stddef.h>
  12 #include <stdio.h>
  13
  14 #ifndef rseq_sizeof_field
  15 #define rseq_sizeof_field(TYPE, MEMBER) sizeof((((TYPE *)0)->MEMBER))
  16 #endif
  17
  18 #ifndef rseq_offsetofend
  19 #define rseq_offsetofend(TYPE, MEMBER) \
  20         (offsetof(TYPE, MEMBER) + rseq_sizeof_field(TYPE, MEMBER))
  21 #endif
  22
  23 #define __rseq_str_1(x) #x
  24 #define __rseq_str(x)           __rseq_str_1(x)
  25
  26 #define rseq_log(fmt, ...)                                                     \
  27         fprintf(stderr, fmt "(in %s() at " __FILE__ ":" __rseq_str(__LINE__)"\n", \
  28                 ## __VA_ARGS__, __func__)
  29
  30 #define rseq_bug(fmt, ...)              \
  31         do {                            \
  32                 rseq_log(fmt, ## __VA_ARGS__); \
  33                 abort();                \
  34         } while (0)
  35
  36 #endif /* _RSEQ_UTILS_H */