osxcross/wrapper/programs/dsymutil.cpp
Thomas Pöchtrager 08414886fb Add llvm-dsymutil build script + re-add 7e9f85
This finally makes proper debugging possible
2015-08-31 21:02:38 +02:00

109 lines
3.6 KiB
C++

/***********************************************************************
* OSXCross Compiler Wrapper *
* Copyright (C) 2014, 2015 by Thomas Poechtrager *
* t.poechtrager@gmail.com *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software *
* Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***********************************************************************/
#include "proginc.h"
#ifndef _WIN32
#include <unistd.h>
#endif
using namespace tools;
namespace program {
int dsymutil(int argc, char **argv, Target &target) {
(void)argc;
std::string dsymutil;
char LLVMDsymutilVersionOutput[1024];
const char *LLVMDsymutilVersionStr;
LLVMVersion LLVMDsymutilVersion;
const std::string &ParentProcessName = getParentProcessName();
if (!debug && ParentProcessName.find("clang") == std::string::npos &&
ParentProcessName != "collect2" && ParentProcessName != "unknown")
debug = 1;
if (char *p = getenv("OSXCROSS_LLVM_DSYMUTIL")) {
dsymutil = p;
debug = 1;
} else {
if (!realPath("osxcross-llvm-dsymutil", dsymutil) &&
!realPath("llvm-dsymutil", dsymutil)) {
if (debug)
dbg << "dsymutil: cannot find [osxcross-]llvm-dsymutil in PATH"
<< dbg.endl();
return 0;
}
}
std::string command = dsymutil + " -version";
if (runcommand(command.c_str(), LLVMDsymutilVersionOutput,
sizeof(LLVMDsymutilVersionOutput)) == RUNCOMMAND_ERROR) {
if (debug)
dbg << "dsymutil: executing \"" << command << "\" failed"
<< dbg.endl();
return 0;
}
LLVMDsymutilVersionStr = strstr(LLVMDsymutilVersionOutput, "LLVM version ");
if (!LLVMDsymutilVersionStr) {
if (debug)
dbg << "dsymutil: unable to parse llvm-dsymutil version"
<< dbg.endl();
return 0;
}
LLVMDsymutilVersionStr += 13; // strlen("LLVM version ");
LLVMDsymutilVersion = parseLLVMVersion(LLVMDsymutilVersionStr);
constexpr LLVMVersion RequiredLLVMDsymutilVersion(3, 8);
if (LLVMDsymutilVersion < RequiredLLVMDsymutilVersion) {
if (debug)
dbg << "ignoring dsymutil invocation: '"
<< dsymutil << "' is too old ("
<< LLVMDsymutilVersion.Str() << " < "
<< RequiredLLVMDsymutilVersion.Str() << ")"
<< dbg.endl();
return 0;
}
std::stringstream lipo;
std::string triple;
lipo << target.execpath << PATHDIV
<< target.getDefaultTriple(triple) << "-lipo";
setenv("LIPO", lipo.str().c_str(), 1);
if (execvp(dsymutil.c_str(), argv))
err << "cannot execute '" << dsymutil << "'" << err.endl();
return 1;
}
} // namespace program