common-exit.c

   1 #include "git-compat-util.h"
   2 #include "trace2.h"
   3
   4 static void check_bug_if_BUG(void)
   5 {
   6         if (!bug_called_must_BUG)
   7                 return;
   8         BUG("on exit(): had bug() call(s) in this process without explicit BUG_if_bug()");
   9 }
  10
  11 /* We wrap exit() to call common_exit() in git-compat-util.h */
  12 int common_exit(const char *file, int line, int code)
  13 {
  14         /*
  15          * For non-POSIX systems: Take the lowest 8 bits of the "code"
  16          * to e.g. turn -1 into 255. On a POSIX system this is
  17          * redundant, see exit(3) and wait(2), but as it doesn't harm
  18          * anything there we don't need to guard this with an "ifdef".
  19          */
  20         code &= 0xff;
  21
  22         check_bug_if_BUG();
  23         trace2_cmd_exit_fl(file, line, code);
  24
  25         return code;
  26 }