diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/signal/siglongjmp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/signal/siglongjmp.c b/src/signal/siglongjmp.c index bc317acc..53789b23 100644 --- a/src/signal/siglongjmp.c +++ b/src/signal/siglongjmp.c @@ -5,5 +5,10 @@ _Noreturn void siglongjmp(sigjmp_buf buf, int ret) { + /* If sigsetjmp was called with nonzero savemask flag, the address + * longjmp will return to is inside of sigsetjmp. The signal mask + * will then be restored in the returned-to context instead of here, + * which matters if the context we are returning from may not have + * sufficient stack space for signal delivery. */ longjmp(buf, ret); } |