diff options
Diffstat (limited to 'diag-control.h')
| -rw-r--r-- | diag-control.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/diag-control.h b/diag-control.h index c1ec5acd..d1622aa6 100644 --- a/diag-control.h +++ b/diag-control.h @@ -316,4 +316,20 @@ #endif #endif +/* + * GCC needs this on AIX for longjmp(). + */ +#if PCAP_IS_AT_LEAST_GNUC_VERSION(5,1) + /* + * Beware that the effect of this builtin is more than just squelching the + * warning! GCC trusts it enough for the process to segfault if the control + * flow reaches the builtin (an infinite empty loop in the same context would + * squelch the warning and ruin the process too, albeit in a different way). + * So please remember to use this very carefully. + */ + #define PCAP_UNREACHABLE __builtin_unreachable(); +#else + #define PCAP_UNREACHABLE +#endif + #endif /* _diag_control_h */ |