1 files changed, 47 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/i386/intr-msg.h b/sysdeps/mach/hurd/i386/intr-msg.h
new file mode 100644
index 0000000000..353a6d2acd
--- /dev/null
+++ b/sysdeps/mach/hurd/i386/intr-msg.h
@@ -0,0 +1,47 @@
+/* Machine-dependent details of interruptible RPC messaging.  i386 version.
+Copyright (C) 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
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+
+#define INTR_MSG_TRAP(msg, option, send_size, rcv_size, rcv_name, timeout, notify) \
+({									      \
+  error_t err;								      \
+  asm (".globl _hurd_intr_rpc_msg_do_trap\n" 				      \
+       ".globl _hurd_intr_rpc_msg_in_trap\n"				      \
+       ".globl _hurd_intr_rpc_msg_cx_sp\n"				      \
+       ".globl _hurd_intr_rpc_msg_sp_restored\n"			      \
+       "				movl %%esp, %%ecx\n"		      \
+       "				leal %1, %%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");			      \
+  err;									      \
+})
+
+
+static void inline
+INTR_MSG_BACK_OUT (struct i386_thread_state *state)
+{
+  extern const void _hurd_intr_rpc_msg_cx_sp;
+  if (state->eip >= (natural_t) &_hurd_intr_rpc_msg_cx_sp)
+    state->uesp = state->ecx;
+  else
+    state->ecx = state->uesp;
+}