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Make -save-temps behave like in GCC 4.5.

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The -save-temps option now behaves like described in GCC 4.5 release notes
(you can specify output directory for temporary files with -save-temps=obj
-o $DIRNAME). I do not have GCC 4.5 installed, so if there are any
inconsistencies between llvmc and GCC in the implementation of this
feature, please let me know.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74190 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mikhail Glushenkov
2009-06-25 18:20:10 +00:00
parent 3ea93ded0f
commit 7defa2d3d5
5 changed files with 77 additions and 22 deletions
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46
include/llvm/CompilerDriver/Main.inc
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@@ -17,6 +17,7 @@
#ifndef LLVM_INCLUDE_COMPILER_DRIVER_MAIN_INC
#define LLVM_INCLUDE_COMPILER_DRIVER_MAIN_INC
#include "llvm/CompilerDriver/BuiltinOptions.h"
#include "llvm/CompilerDriver/CompilationGraph.h"
#include "llvm/CompilerDriver/Error.h"
#include "llvm/CompilerDriver/ForceLinkage.h"
@@ -58,27 +59,56 @@ cl::opt<bool> WriteGraph("write-graph",
cl::opt<bool> ViewGraph("view-graph",
cl::desc("Show compilation graph in GhostView"),
cl::Hidden);
cl::opt<bool> SaveTemps("save-temps",
cl::desc("Keep temporary files"),
cl::Hidden);
cl::opt<SaveTempsEnum::Values> SaveTemps
("save-temps", cl::desc("Keep temporary files"),
cl::init(SaveTempsEnum::Unset),
cl::values(clEnumValN(SaveTempsEnum::Obj, "obj",
"Save files in the directory specified with -o"),
clEnumValN(SaveTempsEnum::Cwd, "cwd",
"Use current working directory"),
clEnumValN(SaveTempsEnum::Obj, "", "Same as 'cwd'"),
clEnumValEnd),
cl::ValueOptional);
namespace {
sys::Path getTempDir() {
sys::Path tempDir;
// GCC 4.5-style -save-temps handling.
if (SaveTemps == SaveTempsEnum::Unset) {
tempDir = sys::Path::GetTemporaryDirectory();
}
else if (SaveTemps == SaveTempsEnum::Obj && !OutputFilename.empty()) {
tempDir = OutputFilename;
if (!tempDir.exists()) {
std::string ErrMsg;
if (tempDir.createDirectoryOnDisk(true, &ErrMsg))
throw std::runtime_error(ErrMsg);
}
}
// else if (SaveTemps == Cwd) -> use current dir (leave tempDir empty)
return tempDir;
}
/// BuildTargets - A small wrapper for CompilationGraph::Build.
int BuildTargets(CompilationGraph& graph, const LanguageMap& langMap) {
int ret;
const sys::Path& tempDir = SaveTemps
? sys::Path("")
: sys::Path(sys::Path::GetTemporaryDirectory());
const sys::Path& tempDir = getTempDir();
try {
ret = graph.Build(tempDir, langMap);
}
catch(...) {
tempDir.eraseFromDisk(true);
if (SaveTemps == SaveTempsEnum::Unset)
tempDir.eraseFromDisk(true);
throw;
}
if (!SaveTemps)
if (SaveTemps == SaveTempsEnum::Unset)
tempDir.eraseFromDisk(true);
return ret;
}