//
//===----------------------------------------------------------------------===//
//
-// This file implements a handle way of adding debugging information to your
+// This file implements a handy way of adding debugging information to your
// code, without it being enabled all of the time, and without having to add
// command line options to enable it.
//
// can specify '-debug-only=foo' to enable JUST the debug information for the
// foo class.
//
-// When compiling in release mode, the -debug-* options and all code in DEBUG()
-// statements disappears, so it does not effect the runtime of the code.
+// When compiling without assertions, the -debug-* options and all code in
+// DEBUG() statements disappears, so it does not affect the runtime of the code.
//
//===----------------------------------------------------------------------===//
-#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
-#include "llvm/Support/circular_raw_ostream.h"
+#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Signals.h"
+#include "llvm/Support/circular_raw_ostream.h"
+#include "llvm/Support/ManagedStatic.h"
using namespace llvm;
//until program termination.
static cl::opt<unsigned>
DebugBufferSize("debug-buffer-size",
- cl::desc("Buffer the last N characters of debug output"
+ cl::desc("Buffer the last N characters of debug output "
"until program termination. "
"[default 0 -- immediate print-out]"),
cl::Hidden,
cl::init(0));
-static std::string CurrentDebugType;
+static ManagedStatic<std::string> CurrentDebugType;
namespace {
struct DebugOnlyOpt {
void operator=(const std::string &Val) const {
DebugFlag |= !Val.empty();
- CurrentDebugType = Val;
+ *CurrentDebugType = Val;
}
};
// with the -debug-only=X option.
//
bool llvm::isCurrentDebugType(const char *DebugType) {
- return CurrentDebugType.empty() || DebugType == CurrentDebugType;
+ return CurrentDebugType->empty() || DebugType == *CurrentDebugType;
}
-/// SetCurrentDebugType - Set the current debug type, as if the -debug-only=X
+/// setCurrentDebugType - Set the current debug type, as if the -debug-only=X
/// option were specified. Note that DebugFlag also needs to be set to true for
/// debug output to be produced.
///
-void llvm::SetCurrentDebugType(const char *Type) {
- CurrentDebugType = Type;
+void llvm::setCurrentDebugType(const char *Type) {
+ *CurrentDebugType = Type;
}
/// dbgs - Return a circular-buffered debug stream.
if (EnableDebugBuffering && DebugFlag && DebugBufferSize != 0)
// TODO: Add a handler for SIGUSER1-type signals so the user can
// force a debug dump.
- sys::AddSignalHandler(&debug_user_sig_handler, 0);
+ sys::AddSignalHandler(&debug_user_sig_handler, nullptr);
// Otherwise we've already set the debug stream buffer size to
// zero, disabling buffering so it will output directly to errs().
}