include/coverage.h

   1 /*
   2  * No copyright is claimed.  This code is in the public domain; do with
   3  * it what you wish.
   4  */
   5 #ifndef UTIL_LINUX_COVERAGE_H
   6 #define UTIL_LINUX_COVERAGE_H
   7
   8 /* When built with --coverage (gcov) we need to explicitly call __gcov_dump()
   9  * in places where we use _exit(), since _exit() skips at-exit hooks resulting
  10  * in lost coverage.
  11  *
  12  * To make sure we don't miss any _exit() calls, this header file is included
  13  * explicitly on the compiler command line via the -include directive (only
  14  * when built with --coverage/-Db_coverage=true)
  15  */
  16 void __gcov_dump(void);
  17 void _exit(int);
  18
  19 __attribute__((noreturn)) static inline void _coverage__exit(int status) {
  20         __gcov_dump();
  21         _exit(status);
  22 }
  23 #define _exit(x) _coverage__exit(x)
  24
  25 #endif