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comparison tango/lib/compiler/llvmdc/genobj.d @ 323:0d52412d5b1a trunk

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[svn r344] Fixed some very minor issues with the usage listing when calling llvmdc with no arguments. Changed the way moduleinfo is registered to use the same approach as DMD, this eliminates the need for correct linking order and should make the way for using a natively compiled runtime library. This should speed up linking tremendously and should now be possible. Fixed the llvm.used array to only be emitted if really necessary.
author lindquist
date Wed, 09 Jul 2008 23:43:51 +0200
parents 665b81613475
children
comparison
equal deleted inserted replaced
322:1aaf6ff7f685 323:0d52412d5b1a
1011 return ret; 1011 return ret;
1012 } 1012 }
1013 } 1013 }
1014 1014
1015 1015
1016 // Win32: this gets initialized by minit.asm 1016 // this gets initialized in _moduleCtor()
1017 // linux: this gets initialized in _moduleCtor()
1018 extern (C) ModuleInfo[] _moduleinfo_array; 1017 extern (C) ModuleInfo[] _moduleinfo_array;
1019 1018
1020 // llvmdc method 1019 // This linked list is created by a compiler generated function inserted
1021 extern (C) void** _d_get_moduleinfo_array(); 1020 // into the .ctor list by the compiler.
1022 1021 struct ModuleReference
1022 {
1023 ModuleReference* next;
1024 ModuleInfo mod;
1025 }
1026 extern (C) ModuleReference* _Dmodule_ref; // start of linked list
1027
1028 // this list is built from the linked list above
1023 ModuleInfo[] _moduleinfo_dtors; 1029 ModuleInfo[] _moduleinfo_dtors;
1024 uint _moduleinfo_dtors_i; 1030 uint _moduleinfo_dtors_i;
1025
1026 // Register termination function pointers
1027 extern (C) int _fatexit(void *);
1028 1031
1029 /** 1032 /**
1030 * Initialize the modules. 1033 * Initialize the modules.
1031 */ 1034 */
1032 1035
1033 extern (C) void _moduleCtor() 1036 extern (C) void _moduleCtor()
1034 { 1037 {
1035 debug(PRINTF) printf("_moduleCtor()\n"); 1038 debug(PRINTF) printf("_moduleCtor()\n");
1036 1039
1037 ModuleInfo* mrbegin = cast(ModuleInfo*)_d_get_moduleinfo_array();
1038 assert(mrbegin !is null);
1039
1040 int len = 0; 1040 int len = 0;
1041 ModuleInfo* mr; 1041 ModuleReference *mr;
1042 for (mr = mrbegin; *mr !is null; ++mr) 1042
1043 for (mr = _Dmodule_ref; mr; mr = mr.next)
1043 len++; 1044 len++;
1044 _moduleinfo_array = new ModuleInfo[len]; 1045 _moduleinfo_array = new ModuleInfo[len];
1045
1046 len = 0; 1046 len = 0;
1047 for (mr = mrbegin; *mr !is null; ++mr) 1047 for (mr = _Dmodule_ref; mr; mr = mr.next)
1048 { _moduleinfo_array[len] = *mr; 1048 { _moduleinfo_array[len] = mr.mod;
1049 len++; 1049 len++;
1050 }
1051
1052 version (Win32)
1053 {
1054 // Ensure module destructors also get called on program termination
1055 //_fatexit(&_STD_moduleDtor);
1056 } 1050 }
1057 1051
1058 _moduleinfo_dtors = new ModuleInfo[_moduleinfo_array.length]; 1052 _moduleinfo_dtors = new ModuleInfo[_moduleinfo_array.length];
1059 debug(PRINTF) printf("_moduleinfo_dtors = x%x\n", cast(void *)_moduleinfo_dtors); 1053 debug(PRINTF) printf("_moduleinfo_dtors = x%x\n", cast(void *)_moduleinfo_dtors);
1060 _moduleIndependentCtors(); 1054 _moduleIndependentCtors();
1061 _moduleCtor2(_moduleinfo_array, 0); 1055 _moduleCtor2(_moduleinfo_array, 0);
1062 debug(PRINTF) printf("_moduleCtor() DONE\n");
1063 } 1056 }
1064 1057
1065 extern (C) void _moduleIndependentCtors() 1058 extern (C) void _moduleIndependentCtors()
1066 { 1059 {
1067 debug(PRINTF) printf("_moduleIndependentCtors()\n"); 1060 debug(PRINTF) printf("_moduleIndependentCtors()\n");