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* sysdeps/mach/hurd/times.c: Fix typo in last change.

Browse Source 
* sysdeps/mach/hurd/setpriority.c [POLICY_TIMESHARE_BASE_COUNT]:
	Use task_policy in place of task_priority.

	* sysdeps/generic/bits/mman.h
	(MS_ASYNC, MS_SYNC, MS_INVALIDATE): New macros.
	* sysdeps/mach/msync.c: New file.

	* sysdeps/mach/powerpc/syscall.S: New file.

	* mach/msg.c [MACH_MSG_OVERWRITE]
	(__mach_msg_trap, __mach_msg_overwrite): New functions.
	* mach/Versions (libc: GLIBC_2.0): Add mach_msg_overwrite and __ name.

	* sysdeps/mach/configure.in: Check for clock.defs to put into
	mach_interface_list.
	* sysdeps/mach/configure: Regenerated.

	* mach/Makefile (mach-machine): New variable, set from $(base-machine).
	($(objpfx)mach-syscalls.mk): Use it in place of $(base-machine).
	($(mach-syscalls:%=$(objpfx)%.S) static pattern rule):
	Use <mach/machine/syscall_sw.h> instead of <sysdep.h>.
	(mach-shortcuts): Add device_read_overwrite_request,
	device_read_overwrite, vm_read_overwrite, thread_switch.

	* configure.in (base_machine): Set to $machine by default.
	* configure: Regenerated.
This commit is contained in:
Roland McGrath
2002-02-19 00:22:30 +00:00
parent 21297437bb
commit 3a2832a07f
14 changed files with 351 additions and 141 deletions
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85
mach/msg.c
View File

@ -1,31 +1,94 @@
/*
/*
* Mach Operating System
* Copyright (c) 1991,1990,1989, 1995 Carnegie Mellon University
* All Rights Reserved.
*
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
*
* Carnegie Mellon requests users of this software to return to
*
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
#include <mach/port.h>
#include <mach/message.h>
#ifdef MACH_MSG_OVERWRITE
/* In variants with this feature, the actual system call is
__mach_msg_overwrite_trap. */
mach_msg_return_t
__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)
{
return __mach_msg_overwrite_trap (msg, option, send_size,
rcv_size, rcv_name, timeout, notify,
MACH_MSG_NULL, 0);
}
weak_alias (__mach_msg_trap, mach_msg_trap)
/* See comments below in __mach_msg. */
mach_msg_return_t
__mach_msg_overwrite (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,
mach_msg_header_t *rcv_msg,
mach_msg_size_t rcv_msg_size)
{
mach_msg_return_t ret;
/* Consider the following cases:
1. Errors in pseudo-receive (eg, MACH_SEND_INTERRUPTED
plus special bits).
2. Use of MACH_SEND_INTERRUPT/MACH_RCV_INTERRUPT options.
3. RPC calls with interruptions in one/both halves.
*/
ret = __mach_msg_overwrite_trap (msg, option, send_size,
rcv_size, rcv_name, timeout, notify,
rcv_msg, rcv_msg_size);
if (ret == MACH_MSG_SUCCESS)
return MACH_MSG_SUCCESS;
if (!(option & MACH_SEND_INTERRUPT))
while (ret == MACH_SEND_INTERRUPTED)
ret = __mach_msg_overwrite_trap (msg, option, send_size,
rcv_size, rcv_name, timeout, notify,
rcv_msg, rcv_msg_size);
if (!(option & MACH_RCV_INTERRUPT))
while (ret == MACH_RCV_INTERRUPTED)
ret = __mach_msg_overwrite_trap (msg, option & ~MACH_SEND_MSG,
0, rcv_size, rcv_name, timeout, notify,
rcv_msg, rcv_msg_size);
return ret;
}
weak_alias (__mach_msg_overwrite, mach_msg_overwrite)
#endif
mach_msg_return_t
__mach_msg (mach_msg_header_t *msg,
mach_msg_option_t option,
@ -36,29 +99,29 @@ __mach_msg (mach_msg_header_t *msg,
mach_port_t notify)
{
mach_msg_return_t ret;
/* Consider the following cases:
1. Errors in pseudo-receive (eg, MACH_SEND_INTERRUPTED
plus special bits).
2. Use of MACH_SEND_INTERRUPT/MACH_RCV_INTERRUPT options.
3. RPC calls with interruptions in one/both halves.
*/
ret = __mach_msg_trap (msg, option, send_size,
rcv_size, rcv_name, timeout, notify);
if (ret == MACH_MSG_SUCCESS)
return MACH_MSG_SUCCESS;
if (!(option & MACH_SEND_INTERRUPT))
while (ret == MACH_SEND_INTERRUPTED)
ret = __mach_msg_trap (msg, option, send_size,
rcv_size, rcv_name, timeout, notify);
if (!(option & MACH_RCV_INTERRUPT))
while (ret == MACH_RCV_INTERRUPTED)
ret = __mach_msg_trap (msg, option & ~MACH_SEND_MSG,
0, rcv_size, rcv_name, timeout, notify);
return ret;
}
weak_alias (__mach_msg, mach_msg)