On 02/24, Will Drewry wrote: > > To ensure that SIGSYS delivery occurs on return from the triggering > system call, SIGSYS is added to the SYNCHRONOUS_MASK macro. Hmm. Can't understand... please help. > #define SYNCHRONOUS_MASK \ > (sigmask(SIGSEGV) | sigmask(SIGBUS) | sigmask(SIGILL) | \ > - sigmask(SIGTRAP) | sigmask(SIGFPE)) > + sigmask(SIGTRAP) | sigmask(SIGFPE) | sigmask(SIGSYS)) Why? SYNCHRONOUS_MASK just tells dequeue_signal() "pick them first". This is needed to make sure that the handler for, say SIGSEGV, can use ucontext->ip as a faulting addr. But seccomp adds info->si_call_addr, this looks unneeded. Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
