Add a C binding to the Target and TargetMachine classes to allow for emitting
binary and assembly. Patch by Carlo Kok. Emitting was inspired by but not based
on the D llvm bindings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154493 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetMachineC.cpp b/lib/Target/TargetMachineC.cpp
new file mode 100644
index 0000000..d6bba8b
--- /dev/null
+++ b/lib/Target/TargetMachineC.cpp
@@ -0,0 +1,197 @@
+//===-- TargetMachine.cpp -------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the LLVM-C part of TargetMachine.h
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm-c/Core.h"
+#include "llvm-c/Target.h"
+#include "llvm-c/TargetMachine.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/CodeGen.h"
+#include "llvm/Support/FormattedStream.h"
+#include "llvm/Module.h"
+#include "llvm/PassManager.h"
+#include <cassert>
+#include <cstdlib>
+#include <cstring>
+
+using namespace llvm;
+
+
+
+LLVMTargetRef LLVMGetFirstTarget() {
+ const Target* target = &*TargetRegistry::begin();
+ return wrap(target);
+}
+LLVMTargetRef LLVMGetNextTarget(LLVMTargetRef T) {
+ return wrap(unwrap(T)->getNext());
+}
+
+const char * LLVMGetTargetName(LLVMTargetRef T) {
+ return unwrap(T)->getName();
+}
+
+const char * LLVMGetTargetDescription(LLVMTargetRef T) {
+ return unwrap(T)->getShortDescription();
+}
+
+LLVMBool LLVMTargetHasJIT(LLVMTargetRef T) {
+ return unwrap(T)->hasJIT();
+}
+
+LLVMBool LLVMTargetHasTargetMachine(LLVMTargetRef T) {
+ return unwrap(T)->hasTargetMachine();
+}
+
+LLVMBool LLVMTargetHasAsmBackend(LLVMTargetRef T) {
+ return unwrap(T)->hasMCAsmBackend();
+}
+
+LLVMTargetMachineRef LLVMCreateTargetMachine(LLVMTargetRef T, char* Triple,
+ char* CPU, char* Features, LLVMCodeGenOptLevel Level, LLVMRelocMode Reloc,
+ LLVMCodeModel CodeModel) {
+ Reloc::Model RM;
+ switch (Reloc){
+ case LLVMRelocStatic:
+ RM = Reloc::Static;
+ break;
+ case LLVMRelocPIC:
+ RM = Reloc::PIC_;
+ break;
+ case LLVMRelocDynamicNoPic:
+ RM = Reloc::DynamicNoPIC;
+ break;
+ default:
+ RM = Reloc::Default;
+ break;
+ }
+
+ CodeModel::Model CM;
+ switch (CodeModel) {
+ case LLVMCodeModelJITDefault:
+ CM = CodeModel::JITDefault;
+ break;
+ case LLVMCodeModelSmall:
+ CM = CodeModel::Small;
+ break;
+ case LLVMCodeModelKernel:
+ CM = CodeModel::Kernel;
+ break;
+ case LLVMCodeModelMedium:
+ CM = CodeModel::Medium;
+ break;
+ case LLVMCodeModelLarge:
+ CM = CodeModel::Large;
+ break;
+ default:
+ CM = CodeModel::Default;
+ break;
+ }
+ CodeGenOpt::Level OL;
+
+ switch (Level) {
+ case LLVMCodeGenLevelNone:
+ OL = CodeGenOpt::None;
+ break;
+ case LLVMCodeGenLevelLess:
+ OL = CodeGenOpt::Less;
+ break;
+ case LLVMCodeGenLevelAggressive:
+ OL = CodeGenOpt::Aggressive;
+ break;
+ default:
+ OL = CodeGenOpt::Default;
+ break;
+ }
+
+ TargetOptions opt;
+ return wrap(unwrap(T)->createTargetMachine(Triple, CPU, Features, opt, RM,
+ CM, OL));
+}
+
+
+void LLVMDisposeTargetMachine(LLVMTargetMachineRef T) {
+ delete unwrap(T);
+}
+
+LLVMTargetRef LLVMGetTargetMachineTarget(LLVMTargetMachineRef T) {
+ const Target* target = &(unwrap(T)->getTarget());
+ return wrap(target);
+}
+
+char* LLVMGetTargetMachineTriple(LLVMTargetMachineRef T) {
+ std::string StringRep = unwrap(T)->getTargetTriple();
+ return strdup(StringRep.c_str());
+}
+
+char* LLVMGetTargetMachineCPU(LLVMTargetMachineRef T) {
+ std::string StringRep = unwrap(T)->getTargetCPU();
+ return strdup(StringRep.c_str());
+}
+
+char* LLVMGetTargetMachineFeatureString(LLVMTargetMachineRef T) {
+ std::string StringRep = unwrap(T)->getTargetFeatureString();
+ return strdup(StringRep.c_str());
+}
+
+LLVMTargetDataRef LLVMGetTargetMachineData(LLVMTargetMachineRef T) {
+ return wrap(unwrap(T)->getTargetData());
+}
+
+LLVMBool LLVMTargetMachineEmitToFile(LLVMTargetMachineRef T, LLVMModuleRef M,
+ char* Filename, LLVMCodeGenFileType codegen, char** ErrorMessage) {
+ TargetMachine* TM = unwrap(T);
+ Module* Mod = unwrap(M);
+
+ PassManager pass;
+
+ std::string error;
+
+ const TargetData* td = TM->getTargetData();
+
+ if (!td) {
+ error = "No TargetData in TargetMachine";
+ *ErrorMessage = strdup(error.c_str());
+ return true;
+ }
+ pass.add(new TargetData(*td));
+
+ TargetMachine::CodeGenFileType ft;
+ switch (codegen) {
+ case LLVMAssemblyFile:
+ ft = TargetMachine::CGFT_AssemblyFile;
+ break;
+ default:
+ ft = TargetMachine::CGFT_ObjectFile;
+ break;
+ }
+ raw_fd_ostream dest(Filename, error, raw_fd_ostream::F_Binary);
+ formatted_raw_ostream destf(dest);
+ if (!error.empty()) {
+ *ErrorMessage = strdup(error.c_str());
+ return true;
+ }
+
+ if (TM->addPassesToEmitFile(pass, destf, ft)) {
+ error = "No TargetData in TargetMachine";
+ *ErrorMessage = strdup(error.c_str());
+ return true;
+ }
+
+ pass.run(*Mod);
+
+ destf.flush();
+ dest.flush();
+ return false;
+}