diff options
Diffstat (limited to 'sysdeps/mach/hurd/i386/trampoline.c')
| -rw-r--r-- | sysdeps/mach/hurd/i386/trampoline.c | 42 |
1 files changed, 6 insertions, 36 deletions
diff --git a/sysdeps/mach/hurd/i386/trampoline.c b/sysdeps/mach/hurd/i386/trampoline.c index 2a31588e21..7adffc40be 100644 --- a/sysdeps/mach/hurd/i386/trampoline.c +++ b/sysdeps/mach/hurd/i386/trampoline.c @@ -181,6 +181,12 @@ _hurd_setup_sighandler (struct hurd_sigstate *ss, __sighandler_t handler, calls we retry need only wait to receive the reply message. */ args->option &= ~MACH_SEND_MSG; + /* Limit the time to receive the reply message, in case the server + claimed that `interrupt_operation' succeeded but in fact the RPC + is hung. */ + args->option |= MACH_RCV_TIMEOUT; + args->timeout = _hurd_interrupted_rpc_timeout; + _hurdsig_end_catch_fault (); state->basic.eip = (int) &&rpc_wait_trampoline; @@ -250,39 +256,3 @@ _hurd_setup_sighandler (struct hurd_sigstate *ss, __sighandler_t handler, /* NOTREACHED */ return NULL; } - -/* STATE describes a thread that had intr_port set (meaning it was inside - HURD_EINTR_RPC), after it has been thread_abort'd. It it looks to have - just completed a mach_msg_trap system call that returned - MACH_RCV_INTERRUPTED, return nonzero and set *PORT to the receive right - being waited on. */ -int -_hurdsig_rcv_interrupted_p (struct machine_thread_all_state *state, - mach_port_t *port) -{ - static const unsigned char syscall[] = { 0x9a, 0, 0, 0, 0, 7, 0 }; - const unsigned char *volatile pc - = (void *) state->basic.eip - sizeof syscall; - - if (_hurdsig_catch_fault (SIGSEGV)) - assert (_hurdsig_fault_sigcode >= (long int) pc && - _hurdsig_fault_sigcode < (long int) (pc + sizeof syscall)); - else - { - int rcving = (state->basic.eax == MACH_RCV_INTERRUPTED && - !memcmp (pc, &syscall, sizeof syscall)); - _hurdsig_end_catch_fault (); - if (rcving) - { - /* We did just return from a mach_msg_trap system call - doing a message receive that was interrupted. - Examine the parameters to find the receive right. */ - struct mach_msg_trap_args *args = (void *) state->basic.uesp; - - *port = args->rcv_name; - return 1; - } - } - - return 0; -} |