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-rw-r--r--sysdeps/mach/hurd/mips/intr-msg.h127
1 files changed, 127 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/mips/intr-msg.h b/sysdeps/mach/hurd/mips/intr-msg.h
new file mode 100644
index 0000000000..16c78972ac
--- /dev/null
+++ b/sysdeps/mach/hurd/mips/intr-msg.h
@@ -0,0 +1,127 @@
+/* Machine-dependent details of interruptible RPC messaging.  Mips version.
+   Copyright (C) 1996, 1997 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+
+#ifdef __mips64
+#define INTR_MSG_TRAP(msg, option, send_size, rcv_size, rcv_name, timeout, notify) \
+({									      \
+  error_t err;								      \
+  mach_port_t __rcv_name = (rcv_name);					      \
+  mach_msg_timeout_t __timeout = (timeout);	       			      \
+  mach_port_t __notify = (notify);					      \
+  asm (".globl _hurd_intr_rpc_msg_do_trap\n" 				      \
+       ".globl _hurd_intr_rpc_msg_in_trap\n"				      \
+       "				move $4, %1\n"			      \
+       "				move $5, %2\n"			      \
+       "				move $6, %3\n"			      \
+       "				move $7, %4\n"			      \
+       "				move $8, %5\n"			      \
+       "				move $9, %6\n"			      \
+       "				move $10, %7\n"			      \
+       "				dli $2, -25\n"			      \
+       "_hurd_intr_rpc_msg_do_trap:	syscall\n"			      \
+       "_hurd_intr_rpc_msg_in_trap:	move %0, $2\n"			      \
+       : "=r" (err)							      \
+       : "r" (msg), "r" (option), "r" (send_size), "r" (rcv_size),	      \
+         "r" (__rcv_name), "r" (__timeout), "r" (__notify)		      \
+       : "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$9", "$10",	      \
+         "$11", "$12", "$13", "$14", "$15", "$24", "$25", "$28");	      \
+  err;									      \
+})
+#else
+#define INTR_MSG_TRAP(msg, option, send_size, rcv_size, rcv_name, timeout, notify) \
+({									      \
+  error_t err;								      \
+  mach_port_t __rcv_name = (rcv_name);					      \
+  mach_msg_timeout_t __timeout = (timeout);	       			      \
+  mach_port_t __notify = (notify);					      \
+  asm (".globl _hurd_intr_rpc_msg_do_trap\n" 				      \
+       ".globl _hurd_intr_rpc_msg_in_trap\n"				      \
+       "				move $4, %1\n"			      \
+       "				move $5, %2\n"			      \
+       "				move $6, %3\n"			      \
+       "				move $7, %4\n"			      \
+       "				move $8, %5\n"			      \
+       "				move $9, %6\n"			      \
+       "				move $10, %7\n"			      \
+       "				li $2, -25\n"			      \
+       "_hurd_intr_rpc_msg_do_trap:	syscall\n"			      \
+       "_hurd_intr_rpc_msg_in_trap:	move %0, $2\n"			      \
+       : "=r" (err)							      \
+       : "r" (msg), "r" (option), "r" (send_size), "r" (rcv_size),	      \
+         "r" (__rcv_name), "r" (__timeout), "r" (__notify)		      \
+       : "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$9", "$10",	      \
+         "$11", "$12", "$13", "$14", "$15", "$24", "$25", "$28");	      \
+  err;									      \
+})
+#endif
+
+static inline void
+INTR_MSG_BACK_OUT (struct mips_thread_state *state)
+{
+  return;
+}
+
+#include "hurdfault.h"
+
+static inline int
+SYSCALL_EXAMINE (struct mips_thread_state *state, int *callno)
+{
+  u_int32_t *p = (void *) (state->pc - 4);
+  int result;
+  if (_hurdsig_catch_memory_fault (p))
+    return 0;
+  if (result = (*p == 0x0000000c))
+    /* The PC is just after a `syscall' instruction.
+       This is a system call in progress; v0($2) holds the call number.  */
+    *callno = state->r2;
+  _hurdsig_end_catch_fault ();
+  return result;
+}
+
+
+struct mach_msg_trap_args
+  {
+    /* This is the order of arguments to mach_msg_trap.  */
+    mach_msg_header_t *msg;
+    mach_msg_option_t option;
+    mach_msg_size_t send_size;
+    mach_msg_size_t rcv_size;
+    mach_port_t rcv_name;
+    mach_msg_timeout_t timeout;
+    mach_port_t notify;
+  };
+
+
+static inline mach_port_t
+MSG_EXAMINE (struct mips_thread_state *state, int *msgid)
+{
+  mach_msg_header_t *msg;
+  mach_port_t send_port;
+
+  msg = (mach_msg_header_t *) state->r4;
+
+  if (_hurdsig_catch_memory_fault (msg))
+    return MACH_PORT_NULL;
+  send_port = msg->msgh_remote_port;
+  *msgid = msg->msgh_id;
+  _hurdsig_end_catch_fault ();
+
+  return send_port;
+}