diff options
Diffstat (limited to 'sysdeps/mach/hurd/i386/intr-msg.h')
| -rw-r--r-- | sysdeps/mach/hurd/i386/intr-msg.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sysdeps/mach/hurd/i386/intr-msg.h b/sysdeps/mach/hurd/i386/intr-msg.h index c011447543..a12b2f2174 100644 --- a/sysdeps/mach/hurd/i386/intr-msg.h +++ b/sysdeps/mach/hurd/i386/intr-msg.h @@ -1,5 +1,5 @@ /* Machine-dependent details of interruptible RPC messaging. i386 version. - Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1995, 1996, 1997, 1999 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 @@ -18,6 +18,9 @@ Boston, MA 02111-1307, USA. */ +/* Note that we must mark OPTION and TIMEOUT as outputs of this operation, + to indicate that the signal thread might mutate them as part + of sending us to a signal handler. */ #define INTR_MSG_TRAP(msg, option, send_size, rcv_size, rcv_name, timeout, notify) \ ({ \ error_t err; \ @@ -26,12 +29,14 @@ ".globl _hurd_intr_rpc_msg_cx_sp\n" \ ".globl _hurd_intr_rpc_msg_sp_restored\n" \ " movl %%esp, %%ecx\n" \ - " leal %1, %%esp\n" \ + " leal %3, %%esp\n" \ "_hurd_intr_rpc_msg_cx_sp: movl $-25, %%eax\n" \ "_hurd_intr_rpc_msg_do_trap: lcall $7, $0 # status in %0\n" \ "_hurd_intr_rpc_msg_in_trap: movl %%ecx, %%esp\n" \ "_hurd_intr_rpc_msg_sp_restored:" \ - : "=a" (err) : "m" ((&msg)[-1]) : "%ecx"); \ + : "=a" (err), "=m" (option), "=m" (timeout) \ + : "m" ((&msg)[-1]), "1" (option), "2" (timeout) \ + : "%ecx"); \ err; \ }) |