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Teach llvm-lto to respect the given RelocModel.

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Patch by Nick Tomlinson!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206177 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
James Molloy 2014-04-14 13:54:16 +00:00
parent f86c5472c0
commit 555f97f2bc
3 changed files with 21 additions and 3 deletions
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3
include/llvm-c/lto.h
View File

@ -79,7 +79,8 @@ typedef enum {
typedef enum { typedef enum {
LTO_CODEGEN_PIC_MODEL_STATIC = 0, LTO_CODEGEN_PIC_MODEL_STATIC = 0,
LTO_CODEGEN_PIC_MODEL_DYNAMIC = 1, LTO_CODEGEN_PIC_MODEL_DYNAMIC = 1,
LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC = 2 LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC = 2,
LTO_CODEGEN_PIC_MODEL_DEFAULT = 3
} lto_codegen_model; } lto_codegen_model;
/** opaque reference to a loaded object module */ /** opaque reference to a loaded object module */

6
lib/LTO/LTOCodeGenerator.cpp
View File

@ -65,7 +65,7 @@ const char* LTOCodeGenerator::getVersionString() {
LTOCodeGenerator::LTOCodeGenerator() LTOCodeGenerator::LTOCodeGenerator()
: Context(getGlobalContext()), Linker(new Module("ld-temp.o", Context)), : Context(getGlobalContext()), Linker(new Module("ld-temp.o", Context)),
TargetMach(NULL), EmitDwarfDebugInfo(false), ScopeRestrictionsDone(false), TargetMach(NULL), EmitDwarfDebugInfo(false), ScopeRestrictionsDone(false),
CodeModel(LTO_CODEGEN_PIC_MODEL_DYNAMIC), NativeObjectFile(NULL), CodeModel(LTO_CODEGEN_PIC_MODEL_DEFAULT), NativeObjectFile(NULL),
DiagHandler(NULL), DiagContext(NULL) { DiagHandler(NULL), DiagContext(NULL) {
initializeLTOPasses(); initializeLTOPasses();
} }
@ -161,6 +161,7 @@ void LTOCodeGenerator::setCodePICModel(lto_codegen_model model) {
case LTO_CODEGEN_PIC_MODEL_STATIC: case LTO_CODEGEN_PIC_MODEL_STATIC:
case LTO_CODEGEN_PIC_MODEL_DYNAMIC: case LTO_CODEGEN_PIC_MODEL_DYNAMIC:
case LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC: case LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC:
case LTO_CODEGEN_PIC_MODEL_DEFAULT:
CodeModel = model; CodeModel = model;
return; return;
} }
@ -295,6 +296,9 @@ bool LTOCodeGenerator::determineTarget(std::string &errMsg) {
case LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC: case LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC:
RelocModel = Reloc::DynamicNoPIC; RelocModel = Reloc::DynamicNoPIC;
break; break;
case LTO_CODEGEN_PIC_MODEL_DEFAULT:
// RelocModel is already the default, so leave it that way.
break;
} }
// construct LTOModule, hand over ownership of module and target // construct LTOModule, hand over ownership of module and target

15
tools/llvm-lto/llvm-lto.cpp
View File

@ -83,7 +83,20 @@ int main(int argc, char **argv) {
LTOCodeGenerator CodeGen; LTOCodeGenerator CodeGen;
CodeGen.setCodePICModel(LTO_CODEGEN_PIC_MODEL_DYNAMIC); switch (RelocModel) {
case Reloc::Static:
CodeGen.setCodePICModel(LTO_CODEGEN_PIC_MODEL_STATIC);
break;
case Reloc::PIC_:
CodeGen.setCodePICModel(LTO_CODEGEN_PIC_MODEL_DYNAMIC);
break;
case Reloc::DynamicNoPIC:
CodeGen.setCodePICModel(LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC);
break;
default:
CodeGen.setCodePICModel(LTO_CODEGEN_PIC_MODEL_DEFAULT);
}
CodeGen.setDebugInfo(LTO_DEBUG_MODEL_DWARF); CodeGen.setDebugInfo(LTO_DEBUG_MODEL_DWARF);
CodeGen.setTargetOptions(Options); CodeGen.setTargetOptions(Options);