Mercurial > projects > ldc
annotate tango/lib/compiler/llvmdc/memory.d @ 217:0806379a5eca trunk
[svn r233] Added: -oq command line option for writing fully qualified object names.
Added: started support for x86 80bit floating point.
Changed: aggregates passed by value now use the llvm 'byval' parameter attribute, also lays ground work for
using other attributes.
Changed: eliminated a lot more std::vectorS, these showed up pretty much at the top when profiling!
Changed: performed other misc. cleanups.
Changed: halt expression now call the new llvm trap intrinsic instead of an assert(0).
Changed: dstress suite now passes -O0 by default, this only eliminates unreferenced globals, which speeds up
linking quite a bit.
| author | lindquist |
|---|---|
| date | Thu, 05 Jun 2008 06:38:36 +0200 |
| parents | 1700239cab2e |
| children | d9d5d59873d8 |
| rev | line source |
|---|---|
| 132 | 1 /** |
| 2 * This module exposes functionality for inspecting and manipulating memory. | |
| 3 * | |
| 4 * Copyright: Copyright (C) 2005-2006 Digital Mars, www.digitalmars.com. | |
| 5 * All rights reserved. | |
| 6 * License: | |
| 7 * This software is provided 'as-is', without any express or implied | |
| 8 * warranty. In no event will the authors be held liable for any damages | |
| 9 * arising from the use of this software. | |
| 10 * | |
| 11 * Permission is granted to anyone to use this software for any purpose, | |
| 12 * including commercial applications, and to alter it and redistribute it | |
| 13 * freely, in both source and binary form, subject to the following | |
| 14 * restrictions: | |
| 15 * | |
| 16 * o The origin of this software must not be misrepresented; you must not | |
| 17 * claim that you wrote the original software. If you use this software | |
| 18 * in a product, an acknowledgment in the product documentation would be | |
| 19 * appreciated but is not required. | |
| 20 * o Altered source versions must be plainly marked as such, and must not | |
| 21 * be misrepresented as being the original software. | |
| 22 * o This notice may not be removed or altered from any source | |
| 23 * distribution. | |
| 24 * Authors: Walter Bright, Sean Kelly | |
| 25 */ | |
| 26 module memory; | |
| 27 | |
| 28 | |
| 29 private | |
| 30 { | |
| 31 version( linux ) | |
| 32 { | |
| 33 //version = SimpleLibcStackEnd; | |
| 34 | |
| 35 version( SimpleLibcStackEnd ) | |
| 36 { | |
| 37 extern (C) extern void* __libc_stack_end; | |
| 38 } | |
| 39 else | |
| 40 { | |
| 41 import tango.stdc.posix.dlfcn; | |
| 42 } | |
| 43 } | |
| 44 version(LLVMDC) | |
| 45 { | |
| 46 pragma(LLVM_internal, "intrinsic", "llvm.frameaddress") | |
| 47 { | |
| 48 void* llvm_frameaddress(uint level=0); | |
| 49 } | |
|
217
0806379a5eca
[svn r233] Added: -oq command line option for writing fully qualified object names.
lindquist
parents:
132
diff
changeset
|
50 extern(C) int printf(char*, ...); |
| 132 | 51 } |
| 52 } | |
| 53 | |
| 54 | |
| 55 /** | |
| 56 * | |
| 57 */ | |
| 58 extern (C) void* rt_stackBottom() | |
| 59 { | |
| 60 version( Win32 ) | |
| 61 { | |
| 62 asm | |
| 63 { | |
| 64 naked; | |
| 65 mov EAX,FS:4; | |
| 66 ret; | |
| 67 } | |
| 68 } | |
| 69 else version( linux ) | |
| 70 { | |
| 71 version( SimpleLibcStackEnd ) | |
| 72 { | |
| 73 return __libc_stack_end; | |
| 74 } | |
| 75 else | |
| 76 { | |
| 77 // See discussion: http://autopackage.org/forums/viewtopic.php?t=22 | |
| 78 static void** libc_stack_end; | |
| 79 | |
| 80 if( libc_stack_end == libc_stack_end.init ) | |
| 81 { | |
| 82 void* handle = dlopen( null, RTLD_NOW ); | |
| 83 libc_stack_end = cast(void**) dlsym( handle, "__libc_stack_end" ); | |
| 84 dlclose( handle ); | |
| 85 } | |
| 86 return *libc_stack_end; | |
| 87 } | |
| 88 } | |
| 89 else | |
| 90 { | |
| 91 static assert( false, "Operating system not supported." ); | |
| 92 } | |
| 93 } | |
| 94 | |
| 95 | |
| 96 /** | |
| 97 * | |
| 98 */ | |
| 99 extern (C) void* rt_stackTop() | |
| 100 { | |
| 101 version( D_InlineAsm_X86 ) | |
| 102 { | |
| 103 asm | |
| 104 { | |
| 105 naked; | |
| 106 mov EAX, ESP; | |
| 107 ret; | |
| 108 } | |
| 109 } | |
| 110 else version(LLVMDC) | |
| 111 { | |
| 112 return llvm_frameaddress(); | |
| 113 } | |
| 114 else | |
| 115 { | |
| 116 static assert( false, "Architecture not supported." ); | |
| 117 } | |
| 118 } | |
| 119 | |
| 120 | |
| 121 private | |
| 122 { | |
| 123 version( Win32 ) | |
| 124 { | |
| 125 extern (C) | |
| 126 { | |
| 127 extern int _xi_a; // &_xi_a just happens to be start of data segment | |
| 128 extern int _edata; // &_edata is start of BSS segment | |
| 129 extern int _end; // &_end is past end of BSS | |
| 130 } | |
| 131 } | |
| 132 else version( linux ) | |
| 133 { | |
| 134 extern (C) | |
| 135 { | |
| 136 extern int _data; | |
| 137 extern int __data_start; | |
| 138 extern int _end; | |
| 139 extern int _data_start__; | |
| 140 extern int _data_end__; | |
| 141 extern int _bss_start__; | |
| 142 extern int _bss_end__; | |
| 143 extern int __fini_array_end; | |
| 144 } | |
| 145 | |
| 146 alias __data_start Data_Start; | |
| 147 alias _end Data_End; | |
| 148 } | |
| 149 | |
| 150 alias void delegate( void*, void* ) scanFn; | |
| 151 } | |
| 152 | |
| 153 | |
| 154 /** | |
| 155 * | |
| 156 */ | |
| 157 extern (C) void rt_scanStaticData( scanFn scan ) | |
| 158 { | |
| 159 version( Win32 ) | |
| 160 { | |
| 161 scan( &_xi_a, &_end ); | |
| 162 } | |
| 163 else version( linux ) | |
| 164 { | |
|
217
0806379a5eca
[svn r233] Added: -oq command line option for writing fully qualified object names.
lindquist
parents:
132
diff
changeset
|
165 //printf("scanning static data from %p to %p\n", &__data_start, &_end); |
| 132 | 166 scan( &__data_start, &_end ); |
| 167 } | |
| 168 else | |
| 169 { | |
| 170 static assert( false, "Operating system not supported." ); | |
| 171 } | |
| 172 } |