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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;
+}