diff options
Diffstat (limited to 'src/pkg/runtime/panic.c')
| -rw-r--r-- | src/pkg/runtime/panic.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/pkg/runtime/panic.c b/src/pkg/runtime/panic.c index 29bf7de27f..d35f7800a3 100644 --- a/src/pkg/runtime/panic.c +++ b/src/pkg/runtime/panic.c @@ -485,6 +485,29 @@ runtime·throwinit(void) runtime·throw("recursive call during initialization - linker skew"); } +bool +runtime·canpanic(G *gp) +{ + byte g; + + USED(&g); // don't use global g, it points to gsignal + + // Is it okay for gp to panic instead of crashing the program? + // Yes, as long as it is running Go code, not runtime code, + // and not stuck in a system call. + if(gp == nil || gp != m->curg) + return false; + if(m->locks != 0 || m->mallocing != 0 || m->throwing != 0 || m->gcing != 0 || m->dying != 0) + return false; + if(gp->status != Grunning || gp->syscallsp != 0) + return false; +#ifdef GOOS_windows + if(m->libcallsp != 0) + return false; +#endif + return true; +} + void runtime·throw(int8 *s) { |