diff options
Diffstat (limited to 'sysdeps/mach/hurd/alpha/trampoline.c')
| -rw-r--r-- | sysdeps/mach/hurd/alpha/trampoline.c | 47 |
1 files changed, 7 insertions, 40 deletions
diff --git a/sysdeps/mach/hurd/alpha/trampoline.c b/sysdeps/mach/hurd/alpha/trampoline.c index 85f4964e14..f3872fcfe6 100644 --- a/sysdeps/mach/hurd/alpha/trampoline.c +++ b/sysdeps/mach/hurd/alpha/trampoline.c @@ -1,5 +1,5 @@ /* Set thread_state for sighandler, and sigcontext to recover. Alpha version. -Copyright (C) 1994 Free Software Foundation, Inc. +Copyright (C) 1994, 1995 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -160,6 +160,12 @@ _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; + state->basic.pc = (long int) &&rpc_wait_trampoline; /* After doing the message receive, the trampoline code will need to update the v0 ($0) value to be restored by sigreturn. To simplify @@ -245,42 +251,3 @@ _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. If 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) -{ - if (state->basic.r0 == MACH_RCV_INTERRUPTED) - { - const unsigned int *pc = (void *) state->basic.pc; - struct mach_msg_trap_args *args = (void *) &state->basic.r16; - - if (_hurdsig_catch_fault (SIGSEGV)) - { - assert (_hurdsig_fault_sigcode == (long int) (pc - 1) || - _hurdsig_fault_sigcode == (long int) &args->rcv_name); - /* We got a fault trying to read the PC or stack. */ - return 0; - } - else - { - if (pc[-1] == ((alpha_instruction) { pal_format: - { opcode: op_pal, - function: op_chmk } }).bits) - { - /* 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. */ - *port = args->rcv_name; - return 1; - } - } - } - - return 0; -} |