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<div class="moz-text-flowed" style="font-family: -moz-fixed;
font-size: 14px;" lang="x-western">I'm attempting to use clang
programatically to compile some C++ to an object file and I get
the error "unable to interface with target machine" during the
codegenaction. I'm wondering if I have missed some step or
otherwise what the problem could be. <br>
<br>
Below is the output of the program:
<br>
<br>
C:\Application\Debug>Application
<br>
Initializing targets
<br>
Targets initialized
<br>
clang -cc1 version 3.4 based upon LLVM 3.4svn default target
i686-pc-win32
<br>
#include "..." search starts here:
<br>
#include <...> search starts here:
<br>
c:\mingw\lib\gcc\mingw32\4.7.2\include\c++
<br>
c:\mingw\lib\gcc\mingw32\4.7.2\include\c++\mingw32
<br>
c:\mingw\lib\gcc\mingw32\4.7.2\include\c++\backward
<br>
c:\mingw\lib\gcc\mingw32\4.7.2\include
<br>
c:\mingw\include
<br>
c:\mingw\lib\gcc\mingw32\4.7.2\include-fixed
<br>
End of search list.
<br>
error: unable to interface with target machine
<br>
1 error generated.
<br>
<br>
<br>
Here is my (very simple) program:
<br>
<br>
<br>
#include <string>
<br>
#include <memory>
<br>
#include <iostream>
<br>
#include <limits.h>
<br>
<br>
#include <llvm/Bitcode/ReaderWriter.h>
<br>
#include "clang/CodeGen/CodeGenAction.h"
<br>
#include "clang/Basic/DiagnosticOptions.h"
<br>
#include "clang/Driver/Compilation.h"
<br>
#include "clang/Driver/Driver.h"
<br>
#include "clang/Driver/Tool.h"
<br>
#include "clang/Frontend/CompilerInstance.h"
<br>
#include "clang/Frontend/CompilerInvocation.h"
<br>
#include "clang/Frontend/FrontendDiagnostic.h"
<br>
#include "clang/Frontend/TextDiagnosticPrinter.h"
<br>
#include "llvm/ADT/OwningPtr.h"
<br>
#include "llvm/ADT/SmallString.h"
<br>
#include "llvm/ExecutionEngine/ExecutionEngine.h"
<br>
#include "llvm/ExecutionEngine/JIT.h"
<br>
#include "llvm/IR/Module.h"
<br>
#include "llvm/IR/LLVMContext.h"
<br>
#include "llvm/Support/system_error.h"
<br>
#include "llvm/Support/Host.h"
<br>
#include "llvm/Support/ManagedStatic.h"
<br>
#include "llvm/Support/Path.h"
<br>
#include "llvm/Support/TargetSelect.h"
<br>
#include "llvm/Support/raw_ostream.h"
<br>
<br>
#include <Windows.h>
<br>
<br>
using namespace std;
<br>
using namespace llvm;
<br>
using namespace clang;
<br>
using namespace clang::driver;
<br>
<br>
int main(int argc, const char **argv, char * const *envp) {
<br>
<br>
llvm::InitializeNativeTarget();
<br>
<br>
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new
DiagnosticOptions();
<br>
TextDiagnosticPrinter *DiagClient =
<br>
new TextDiagnosticPrinter(llvm::errs(), &*DiagOpts);
<br>
<br>
IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new
DiagnosticIDs());
<br>
DiagnosticsEngine Diags(DiagID, &*DiagOpts, DiagClient);
<br>
<br>
driver::ArgStringList CCArgs;
<br>
<br>
CCArgs.push_back("-cc1");
<br>
CCArgs.push_back("-triple");
<br>
CCArgs.push_back("i686-pc-win32");
<br>
CCArgs.push_back("-emit-obj");
<br>
CCArgs.push_back("-O3");
<br>
CCArgs.push_back("-nostdsysteminc");
<br>
CCArgs.push_back("-mrelax-all");
<br>
CCArgs.push_back("-disable-free");
<br>
CCArgs.push_back("-v");
<br>
CCArgs.push_back("-coverage-file");
<br>
CCArgs.push_back("test.o");
<br>
CCArgs.push_back("-main-file-name");
<br>
CCArgs.push_back("test.cpp");
<br>
CCArgs.push_back("-mrelocation-model");
<br>
CCArgs.push_back("static");
<br>
CCArgs.push_back("-mdisable-fp-elim");
<br>
CCArgs.push_back("-fmath-errno");
<br>
CCArgs.push_back("-masm-verbose");
<br>
CCArgs.push_back("-mconstructor-aliases");
<br>
CCArgs.push_back("-target-cpu");
<br>
CCArgs.push_back("pentium4");
<br>
CCArgs.push_back("-internal-isystem");
<br>
CCArgs.push_back("c:\\mingw\\lib\\gcc\\mingw32\\4.7.2\\include\\c++");
<br>
CCArgs.push_back("-internal-isystem");
<br>
CCArgs.push_back("c:\\mingw\\lib\\gcc\\mingw32\\4.7.2\\include\\c++\\mingw32");
<br>
CCArgs.push_back("-internal-isystem");
<br>
CCArgs.push_back("c:\\mingw\\lib\\gcc\\mingw32\\4.7.2\\include\\c++\\backward");
<br>
CCArgs.push_back("-internal-isystem");
<br>
CCArgs.push_back("c:\\mingw\\lib\\gcc\\mingw32\\4.7.2\\include");
<br>
CCArgs.push_back("-internal-isystem");
<br>
CCArgs.push_back("c:\\mingw\\include");
<br>
CCArgs.push_back("-internal-isystem");
<br>
CCArgs.push_back("c:\\mingw\\lib\\gcc\\mingw32\\4.7.2\\include-fixed");
<br>
CCArgs.push_back("-std=c++11");
<br>
CCArgs.push_back("-fdeprecated-macro");
<br>
CCArgs.push_back("-ferror-limit");
<br>
CCArgs.push_back("19");
<br>
CCArgs.push_back("-fmessage-length");
<br>
CCArgs.push_back("150");
<br>
CCArgs.push_back("-mstackrealign");
<br>
CCArgs.push_back("-fms-extensions");
<br>
CCArgs.push_back("-fmsc-version=1300");
<br>
CCArgs.push_back("-fobjc-runtime=gcc");
<br>
CCArgs.push_back("-fobjc-default-synthesize-properties");
<br>
CCArgs.push_back("-fcxx-exceptions");
<br>
CCArgs.push_back("-fexceptions");
<br>
CCArgs.push_back("-fdiagnostics-show-option");
<br>
CCArgs.push_back("-fcolor-diagnostics");
<br>
CCArgs.push_back("-backend-option");
<br>
CCArgs.push_back("-vectorize-loops");
<br>
CCArgs.push_back("-x");
<br>
CCArgs.push_back("c++");
<br>
CCArgs.push_back("-o");
<br>
CCArgs.push_back("test.o");
<br>
CCArgs.push_back("test.cpp");
<br>
<br>
OwningPtr<CompilerInvocation> CI(new
CompilerInvocation);
<br>
CompilerInvocation::CreateFromArgs(*CI,
<br>
const_cast<const char **>(CCArgs.data()),
<br>
const_cast<const char **>(CCArgs.data()) +
<br>
CCArgs.size(),
<br>
Diags);
<br>
<br>
// Create a compiler instance to handle the actual work.
<br>
CompilerInstance Clang;
<br>
Clang.setInvocation(CI.take());
<br>
<br>
// Create the compilers actual diagnostics engine.
<br>
Clang.createDiagnostics();
<br>
if (!Clang.hasDiagnostics())
<br>
return 1;
<br>
<br>
OwningPtr<CodeGenAction> Act(new EmitObjAction());
<br>
if (!Clang.ExecuteAction(*Act))
<br>
return 1;
<br>
<br>
return 0;
<br>
}
<br>
<br>
<br>
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