1
2/*--------------------------------------------------------------------*/
3/*--- Basic Mach interface functions                 mach_basics.c ---*/
4/*--------------------------------------------------------------------*/
5
6/*
7   This file is part of Valgrind, a dynamic binary instrumentation
8   framework.
9
10   Copyright (C) 2005-2012 Apple Inc.
11      Greg Parker  gparker@apple.com
12
13   This program is free software; you can redistribute it and/or
14   modify it under the terms of the GNU General Public License as
15   published by the Free Software Foundation; either version 2 of the
16   License, or (at your option) any later version.
17
18   This program is distributed in the hope that it will be useful, but
19   WITHOUT ANY WARRANTY; without even the implied warranty of
20   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
21   General Public License for more details.
22
23   You should have received a copy of the GNU General Public License
24   along with this program; if not, write to the Free Software
25   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
26   02111-1307, USA.
27
28   The GNU General Public License is contained in the file COPYING.
29*/
30
31#if defined(VGO_darwin)
32
33#include "pub_core_basics.h"
34#include "pub_core_mach.h"
35
36#include <mach/mach.h>
37#include <mach/machine/ndr_def.h>
38
39/* From mach_traps-<arch>-darwin.S */
40//extern mach_port_name_t host_self_trap(void);
41extern mach_port_name_t thread_self_trap(void);
42extern mach_port_t mach_reply_port(void);
43
44/* Global variables set in mach_init() */
45vm_size_t vm_page_size = 0;
46mach_port_name_t mach_task_self_ = 0;
47
48
49mach_port_name_t mach_thread_self(void)
50{
51    return thread_self_trap();
52}
53
54static mach_port_t reply = 0;
55
56mach_port_t mig_get_reply_port(void)
57{
58    if (!reply) reply = mach_reply_port();
59    return reply;
60    // GrP fixme is just one enough for valgrind's own use?
61    // might work if valgrind never blocks in mig calls on
62    // its own behalf, and doesn't call mig outside the semaphore
63}
64
65
66void mig_dealloc_reply_port(mach_port_t reply_port)
67{
68}
69
70
71void mig_put_reply_port(mach_port_t reply_port)
72{
73}
74
75
76/* Initialize Mach global data.
77   Should be called early in main(). */
78void VG_(mach_init)(void)
79{
80    reply = 0;
81    mach_task_self_ = task_self_trap();
82
83    // GrP fixme host_page_size(host_self_trap(), &vm_page_size);
84    vm_page_size = 4096;
85}
86
87#endif // defined(VGO_darwin)
88
89/*--------------------------------------------------------------------*/
90/*--- end                                                          ---*/
91/*--------------------------------------------------------------------*/
92