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) 2005-2017 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);
41 extern mach_port_name_t thread_self_trap(void);
42 extern mach_port_t mach_reply_port(void);
43
44 /* Global variables set in mach_init() */
45 vm_size_t vm_page_size = 0;
46 mach_port_name_t mach_task_self_ = 0;
47
48
mach_thread_self(void)49 mach_port_name_t mach_thread_self(void)
50 {
51 return thread_self_trap();
52 }
53
54 static mach_port_t reply = 0;
55
mig_get_reply_port(void)56 mach_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
mig_dealloc_reply_port(mach_port_t reply_port)66 void mig_dealloc_reply_port(mach_port_t reply_port)
67 {
68 }
69
70
mig_put_reply_port(mach_port_t reply_port)71 void 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(). */
VG_(mach_init)78 void 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