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/* -*-comment-start: "//";comment-end:""-*-
* GNU Mes --- Maxwell Equations of Software
* Copyright © 2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of GNU Mes.
*
* GNU Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* GNU Mes 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#include <gnu/syscall.h>
#include <mach/mach_traps.h>
static mach_msg_type_t mach_msg_type_int32 =
{
.msgt_name = (unsigned char) MACH_MSG_TYPE_INTEGER_32, // msgt_name
.msgt_size = 32, // msgt_size
.msgt_number = 1, // msgt_number
.msgt_inline = 1, // msgt_inline
.msgt_longform = 0, // msgt_longform
.msgt_deallocate = 0, // msgt_deallocate
.msgt_unused = 0 // msgt_unused
};
static mach_msg_type_long_t mach_msg_type_pointer =
{
{
0, // msgt_name
0, // msgt_size
0, // msgt_number
1, // msgt_inline FIXME: we always outline...
1, // msgt_longform
0, // msgt_deallocate
0, // msgt_unused
},
MACH_MSG_TYPE_CHAR, // msgtl_name
8, // msgtl_size
2048, // msgtl_number
};
static mach_msg_type_t mach_msg_type_int64 =
{
(unsigned char) MACH_MSG_TYPE_INTEGER_64, // msgt_name
64, // msgt_size
1, // msgt_number
1, // msgt_inline
0, // msgt_longform
0, // msgt_deallocate
0, // msgt_unused
};
kern_return_t
__syscall (mach_port_t port, int sys_call)
{
struct mach_msg message =
{
{
MACH_MSGH_BITS (MACH_MSG_TYPE_COPY_SEND, MACH_MSG_TYPE_MAKE_SEND_ONCE),
0,
port,
{__mach_reply_port (),},
0,
sys_call,
}
};
return __mach_msg (&message.header,
MACH_SEND_MSG|MACH_RCV_MSG|MACH_MSG_OPTION_NONE,
sizeof (message),
sizeof (message),
message.header.msgh_local_port,
MACH_MSG_TIMEOUT_NONE,
MACH_PORT_NULL);
}
kern_return_t
__syscall2 (mach_port_t port, int sys_call, int one, int two)
{
struct mach_msg_2 message =
{
{
MACH_MSGH_BITS (MACH_MSG_TYPE_COPY_SEND, MACH_MSG_TYPE_MAKE_SEND_ONCE),
0,
port,
{__mach_reply_port (),},
0,
sys_call,
},
mach_msg_type_int32, one,
mach_msg_type_int32, two,
};
return __mach_msg (&message.header,
MACH_SEND_MSG|MACH_RCV_MSG|MACH_MSG_OPTION_NONE,
sizeof (message),
sizeof (message),
message.header.msgh_local_port,
MACH_MSG_TIMEOUT_NONE,
MACH_PORT_NULL);
}
kern_return_t
__syscall_get (mach_port_t port, int sys_call, mach_msg_header_t *message, size_t size)
{
message->msgh_bits = MACH_MSGH_BITS (MACH_MSG_TYPE_COPY_SEND, MACH_MSG_TYPE_MAKE_SEND_ONCE);
message->msgh_remote_port = port;
message->msgh_local_port = __mach_reply_port ();
message->msgh_seqno = 0;
message->msgh_id = sys_call;
return __mach_msg (message,
MACH_SEND_MSG|MACH_RCV_MSG|MACH_MSG_OPTION_NONE,
message->msgh_size,
size,
message->msgh_local_port,
MACH_MSG_TIMEOUT_NONE,
MACH_PORT_NULL);
}
kern_return_t
__syscall_put (mach_port_t port, int sys_call, mach_msg_header_t *message, size_t size)
{
message->msgh_bits |= MACH_MSGH_BITS (MACH_MSG_TYPE_COPY_SEND, MACH_MSG_TYPE_MAKE_SEND_ONCE);
message->msgh_remote_port = port;
message->msgh_local_port = __mach_reply_port ();
message->msgh_seqno = 0;
message->msgh_id = sys_call;
return __mach_msg (message,
MACH_SEND_MSG|MACH_RCV_MSG|MACH_MSG_OPTION_NONE,
message->msgh_size,
size,
message->msgh_local_port,
MACH_MSG_TIMEOUT_NONE,
MACH_PORT_NULL);
}
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