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fix clang -MM output to escape spaces in filenames. This seems to be

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the only character that GCC escapes.  PR9224.

llvm-svn: 125707
This commit is contained in:
Chris Lattner 2011-02-17 02:14:49 +00:00
parent 4796c4feb1
commit 5df2a4e8df
1 changed files with 18 additions and 7 deletions
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25
clang/lib/Frontend/DependencyFile.cpp
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@ -13,7 +13,6 @@
#include "clang/Frontend/Utils.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Frontend/DependencyOutputOptions.h"
#include "clang/Frontend/FrontendDiagnostic.h"
@ -22,7 +21,6 @@
#include "clang/Lex/Preprocessor.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/Support/raw_ostream.h"
#include <string>
using namespace clang;
@ -117,6 +115,16 @@ void DependencyFileCallback::FileChanged(SourceLocation Loc,
Files.push_back(Filename);
}
/// PrintFilename - GCC escapes spaces, but apparently not ' or " or other
/// scary characters.
static void PrintFilename(llvm::raw_ostream &OS, llvm::StringRef Filename) {
for (unsigned i = 0, e = Filename.size(); i != e; ++i) {
if (Filename[i] == ' ')
OS << '\\';
OS << Filename[i];
}
}
void DependencyFileCallback::OutputDependencyFile() {
// Write out the dependency targets, trying to avoid overly long
// lines when possible. We try our best to emit exactly the same
@ -130,14 +138,15 @@ void DependencyFileCallback::OutputDependencyFile() {
unsigned N = I->length();
if (Columns == 0) {
Columns += N;
*OS << *I;
} else if (Columns + N + 2 > MaxColumns) {
Columns = N + 2;
*OS << " \\\n " << *I;
*OS << " \\\n ";
} else {
Columns += N + 1;
*OS << ' ' << *I;
*OS << ' ';
}
// Targets already quoted as needed.
*OS << *I;
}
*OS << ':';
@ -155,7 +164,8 @@ void DependencyFileCallback::OutputDependencyFile() {
*OS << " \\\n ";
Columns = 2;
}
*OS << ' ' << *I;
*OS << ' ';
PrintFilename(*OS, *I);
Columns += N + 1;
}
*OS << '\n';
@ -166,7 +176,8 @@ void DependencyFileCallback::OutputDependencyFile() {
for (std::vector<std::string>::iterator I = Files.begin() + 1,
E = Files.end(); I != E; ++I) {
*OS << '\n';
*OS << *I << ":\n";
PrintFilename(*OS, *I);
*OS << ":\n";
}
}
}