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comparison druntime/src/compiler/dmd/memory_osx.c @ 1458:e0b2d67cfe7c

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Added druntime (this should be removed once it works).
author Robert Clipsham <robert@octarineparrot.com>
date Tue, 02 Jun 2009 17:43:06 +0100
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1456:7b218ec1044f 1458:e0b2d67cfe7c
1 /**
2 * This module provides OSX-specific support routines for memory.d.
3 *
4 * Copyright: Copyright Digital Mars 2008 - 2009.
5 * License: <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>.
6 * Authors: Walter Bright, Sean Kelly
7 *
8 * Copyright Digital Mars 2008 - 2009.
9 * Distributed under the Boost Software License, Version 1.0.
10 * (See accompanying file LICENSE_1_0.txt or copy at
11 * http://www.boost.org/LICENSE_1_0.txt)
12 */
13 #ifdef __APPLE__
14
15
16 #include <mach-o/dyld.h>
17 #include <mach-o/getsect.h>
18
19 void gc_addRange( void* p, size_t sz );
20 void gc_removeRange( void* p );
21
22 typedef struct
23 {
24 const char* seg;
25 const char* sect;
26 } seg_ref;
27
28 const static seg_ref data_segs[] = {{SEG_DATA, SECT_DATA},
29 {SEG_DATA, SECT_BSS},
30 {SEG_DATA, SECT_COMMON}};
31 const static int NUM_DATA_SEGS = sizeof(data_segs) / sizeof(seg_ref);
32
33
34 static void on_add_image( const struct mach_header* h, intptr_t slide )
35 {
36 const struct section* sect;
37 int i;
38
39 for( i = 0; i < NUM_DATA_SEGS; ++i )
40 {
41 sect = getsectbynamefromheader( h,
42 data_segs[i].seg,
43 data_segs[i].sect );
44 if( sect == NULL || sect->size == 0 )
45 continue;
46 gc_addRange( (void*) sect->addr + slide, sect->size );
47 }
48 }
49
50
51 static void on_remove_image( const struct mach_header* h, intptr_t slide )
52 {
53 const struct section* sect;
54 int i;
55
56 for( i = 0; i < NUM_DATA_SEGS; ++i )
57 {
58 sect = getsectbynamefromheader( h,
59 data_segs[i].seg,
60 data_segs[i].sect );
61 if( sect == NULL || sect->size == 0 )
62 continue;
63 gc_removeRange( (void*) sect->addr + slide );
64 }
65 }
66
67
68 void _d_osx_image_init()
69 {
70 _dyld_register_func_for_add_image( &on_add_image );
71 _dyld_register_func_for_remove_image( &on_remove_image );
72 }
73
74
75 #endif