a6d0ee24c3
User processes can send signals with number up to _NSIG. There are a few signal numbers above that used by the kernel, but should explicitly not be included in the range or range checks in PM will fail. The system processes use a different version of sigaddset, sigdelset, sigemptyset, sigfillset, and sigismember which does not include a range check on signal numbers (as opposed to the normal functions used by normal processes). This patch unbreaks test37 when the boot image is compiled with GCC/Clang.