33 #error "SafeStack is not compatible with code run in alternate signal stacks"
53     /** Information for the signal handler (trampoline) */
93  * (from the signal handler when it is not signal handling, read ahead
110  * This is used as the signal handler. This is called with the brand new stack
111  * (thanks to sigaltstack). We have to return, given that this is a signal
114 static void coroutine_trampoline(int signal)  in coroutine_trampoline()  argument
128      * this is a signal handler and we have to do a return "soon". Then the  in coroutine_trampoline()
162      * prepare a stack, with it delivering a signal to ourselves and then  in qemu_coroutine_new()
179      * Preserve the SIGUSR2 signal state, block SIGUSR2,  in qemu_coroutine_new()
180      * and establish our signal handler. The signal will  in qemu_coroutine_new()
181      * later transfer control onto the signal stack.  in qemu_coroutine_new()
210      * Now transfer control onto the signal stack and set it up.  in qemu_coroutine_new()
213      * signal can be delivered the first time sigsuspend() is  in qemu_coroutine_new()
225      * Inform the system that we are back off the signal stack by  in qemu_coroutine_new()
226      * removing the alternative signal stack. Be careful here: It  in qemu_coroutine_new()
240      * Restore the old SIGUSR2 signal handler and mask  in qemu_coroutine_new()
248      * Now enter the trampoline again, but this time not as a signal  in qemu_coroutine_new()