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Add enhanced crash reporter breadcrumbs for clang_createTranslationUnitFromSourceFile(). 

llvm-svn: 92820
This commit is contained in:
Ted Kremenek 2010-01-06 03:42:32 +00:00
parent 81478719a7
commit 991eb3f6c0
1 changed files with 54 additions and 0 deletions
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54
clang/tools/CIndex/CIndex.cpp
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@ -25,6 +25,20 @@
using namespace clang;
using namespace idx;
//===----------------------------------------------------------------------===//
// Crash Reporting.
//===----------------------------------------------------------------------===//
#ifdef __APPLE__
#include "clang/Analysis/Support/SaveAndRestore.h"
// Integrate with crash reporter.
extern "C" const char *__crashreporter_info__;
#endif
//===----------------------------------------------------------------------===//
// Visitors.
//===----------------------------------------------------------------------===//
namespace {
static enum CXCursorKind TranslateDeclRefExpr(DeclRefExpr *DRE) {
NamedDecl *D = DRE->getDecl();
@ -392,6 +406,46 @@ clang_createTranslationUnitFromSourceFile(CXIndex CIdx,
command_line_args + num_command_line_args);
unsigned NumErrors = CXXIdx->getDiags().getNumErrors();
#ifdef __APPLE__
// Integrate with crash reporter.
static unsigned counter = 0;
static const char* reportStrings[16] = { 0 };
llvm::SmallString<1028> CrashString;
{
llvm::raw_svector_ostream Out(CrashString);
Out << "ClangCIndex [createTranslationUnitFromSourceFile]: clang";
for (llvm::SmallVectorImpl<const char*>::iterator I=Args.begin(),
E=Args.end(); I!=E; ++I)
Out << ' ' << *I;
}
unsigned myCounter = counter;
counter = myCounter == 15 ? 0 : myCounter + 1;
while (reportStrings[myCounter]) {
myCounter = counter;
counter = myCounter == 15 ? 0 : myCounter + 1;
}
SaveAndRestore<const char*> OldCrashString(reportStrings[myCounter],
CrashString.c_str());
// We need to create an aggregate string because multiple threads
// may be in this method at one time. The crash reporter string
// will attempt to overapproximate the set of in-flight invocations
// of this function. Race conditions can still cause this goal
// to not be achieved.
llvm::SmallString<1028> AggregateString;
{
llvm::raw_svector_ostream Out(AggregateString);
for (unsigned i = 0; i < 16; ++i)
if (reportStrings[i]) Out << reportStrings[i] << '\n';
}
__crashreporter_info__ = AggregateString.c_str();
#endif
llvm::OwningPtr<ASTUnit> Unit(
ASTUnit::LoadFromCommandLine(Args.data(), Args.data() + Args.size(),
CXXIdx->getDiags(),