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Merge pull request #1470 from JohanEngelen/random_file

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Use random output filenames for `-run`.
This commit is contained in:
Johan Engelen 2016-05-10 13:08:18 +02:00
commit 4515033381
2 changed files with 68 additions and 26 deletions
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34
driver/linker.cpp
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@ -70,18 +70,32 @@ static std::string getOutputName(bool const sharedLib) {
} else {
result = "a.out";
}
const char *extension = nullptr;
if (sharedLib) {
std::string libExt = std::string(".") + global.dll_ext;
if (!endsWith(result, libExt)) {
if (global.params.targetTriple->getOS() != llvm::Triple::Win32) {
result = "lib" + result + libExt;
} else {
result.append(libExt);
}
extension = global.dll_ext;
if (global.params.targetTriple->getOS() != llvm::Triple::Win32) {
result = "lib" + result;
}
} else if (global.params.targetTriple->isOSWindows()) {
extension = "exe";
}
if (global.params.run) {
// If `-run` is passed, the executable is temporary and is removed
// after execution. Make sure the name does not collide with other files
// from other processes by creating a unique filename.
llvm::SmallString<128> tempFilename;
auto EC = llvm::sys::fs::createTemporaryFile(
result, extension ? extension : "", tempFilename);
if (!EC) {
result = tempFilename.str();
}
} else {
if (extension) {
result += ".";
result += extension;
}
} else if (global.params.targetTriple->isOSWindows() &&
!endsWith(result, ".exe")) {
result.append(".exe");
}
return result;