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Attempt at getting LLVM to provide a proper target data layout. Should assert now if things are borked. Added untested support for Thumb target.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Mon, 27 Oct 2008 17:37:34 +0100
parents 6dcab994ddc3
children 4ac97ec7c18e
comparison
equal deleted inserted replaced
734:6dcab994ddc3 735:eee9efe5b51f
184 -Dd<docdir> write documentation file to <docdir> directory\n\ 184 -Dd<docdir> write documentation file to <docdir> directory\n\
185 -Df<filename> write documentation file to <filename>\n\ 185 -Df<filename> write documentation file to <filename>\n\
186 \n\ 186 \n\
187 Codegen control:\n\ 187 Codegen control:\n\
188 -m<arch> emit code specific to <arch> being one of:\n\ 188 -m<arch> emit code specific to <arch> being one of:\n\
189 x86 x86-64 ppc32 ppc64\n\ 189 x86 x86-64 ppc32 ppc64 arm thumb\n\
190 -t<os> emit code specific to <os> being one of:\n\ 190 -t<os> emit code specific to <os> being one of:\n\
191 Linux, Windows, MacOSX, FreeBSD\n\ 191 Linux, Windows, MacOSX, FreeBSD\n\
192 \n\ 192 \n\
193 -g, -gc add symbolic debug info\n\ 193 -g, -gc add symbolic debug info\n\
194 \n\ 194 \n\
828 global.params.llvmArch = "ppc64"; 828 global.params.llvmArch = "ppc64";
829 else 829 else
830 global.params.llvmArch = "ppc32"; 830 global.params.llvmArch = "ppc32";
831 #elif defined(__arm__) 831 #elif defined(__arm__)
832 global.params.llvmArch = "arm"; 832 global.params.llvmArch = "arm";
833 #elif defined(__thumb__)
834 global.params.llvmArch = "thumb";
833 #else 835 #else
834 #error 836 #error
835 #endif 837 #endif
836 } 838 }
837 839
838 if (strcmp(global.params.llvmArch,"x86")==0) { 840 if (strcmp(global.params.llvmArch,"x86")==0) {
839 VersionCondition::addPredefinedGlobalIdent("X86"); 841 VersionCondition::addPredefinedGlobalIdent("X86");
840 global.params.isLE = true; 842 global.params.isLE = true;
841 global.params.is64bit = false; 843 global.params.is64bit = false;
842 global.params.cpu = ARCHx86; 844 global.params.cpu = ARCHx86;
843 //global.params.data_layout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-f80:32:32-v64:64:64-v128:128:128-a0:0:64";
844 if (global.params.useInlineAsm) { 845 if (global.params.useInlineAsm) {
845 VersionCondition::addPredefinedGlobalIdent("LLVM_InlineAsm_X86"); 846 VersionCondition::addPredefinedGlobalIdent("LLVM_InlineAsm_X86");
846 } 847 }
847 } 848 }
848 else if (strcmp(global.params.llvmArch,"x86-64")==0) { 849 else if (strcmp(global.params.llvmArch,"x86-64")==0) {
849 VersionCondition::addPredefinedGlobalIdent("X86_64"); 850 VersionCondition::addPredefinedGlobalIdent("X86_64");
850 global.params.isLE = true; 851 global.params.isLE = true;
851 global.params.is64bit = true; 852 global.params.is64bit = true;
852 global.params.cpu = ARCHx86_64; 853 global.params.cpu = ARCHx86_64;
853 //global.params.data_layout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64";
854 } 854 }
855 else if (strcmp(global.params.llvmArch,"ppc32")==0) { 855 else if (strcmp(global.params.llvmArch,"ppc32")==0) {
856 VersionCondition::addPredefinedGlobalIdent("PPC"); 856 VersionCondition::addPredefinedGlobalIdent("PPC");
857 global.params.isLE = false; 857 global.params.isLE = false;
858 global.params.is64bit = false; 858 global.params.is64bit = false;
859 global.params.cpu = ARCHppc; 859 global.params.cpu = ARCHppc;
860 //global.params.data_layout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64";
861 } 860 }
862 else if (strcmp(global.params.llvmArch,"ppc64")==0) { 861 else if (strcmp(global.params.llvmArch,"ppc64")==0) {
863 VersionCondition::addPredefinedGlobalIdent("PPC64"); 862 VersionCondition::addPredefinedGlobalIdent("PPC64");
864 global.params.isLE = false; 863 global.params.isLE = false;
865 global.params.is64bit = true; 864 global.params.is64bit = true;
866 global.params.cpu = ARCHppc_64; 865 global.params.cpu = ARCHppc_64;
867 //global.params.data_layout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64";
868 } 866 }
869 else if (strcmp(global.params.llvmArch,"arm")==0) { 867 else if (strcmp(global.params.llvmArch,"arm")==0) {
870 VersionCondition::addPredefinedGlobalIdent("ARM"); 868 VersionCondition::addPredefinedGlobalIdent("ARM");
871 global.params.isLE = true; 869 global.params.isLE = true;
872 global.params.is64bit = false; 870 global.params.is64bit = false;
873 global.params.cpu = ARCHarm; 871 global.params.cpu = ARCHarm;
874 } 872 }
873 else if (strcmp(global.params.llvmArch,"thumb")==0) {
874 VersionCondition::addPredefinedGlobalIdent("Thumb");
875 global.params.isLE = true;
876 global.params.is64bit = false;
877 global.params.cpu = ARCHthumb;
878 }
875 else { 879 else {
876 assert(0 && "Invalid arch"); 880 assert(0 && "Invalid arch");
877 } 881 }
878 882
879 assert(global.params.cpu != ARCHinvalid); 883 assert(global.params.cpu != ARCHinvalid);
924 928
925 if (!global.params.targetTriple) 929 if (!global.params.targetTriple)
926 global.params.targetTriple = DEFAULT_TARGET_TRIPLE; 930 global.params.targetTriple = DEFAULT_TARGET_TRIPLE;
927 931
928 Logger::println("Target triple: %s", global.params.targetTriple); 932 Logger::println("Target triple: %s", global.params.targetTriple);
933
934 // build a minimal data layout so llvm can find the target
935 global.params.dataLayout = global.params.isLE
936 ? (char*)(global.params.is64bit ? "e-p:64:64" : "e-p:32:32")
937 : (char*)(global.params.is64bit ? "E-p:64:64" : "E-p:32:32");
938 Logger::println("Layout: %s", global.params.dataLayout);
929 939
930 // Initialization 940 // Initialization
931 Type::init(); 941 Type::init();
932 Id::initialize(); 942 Id::initialize();
933 Module::init(); 943 Module::init();