mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
70197a3a04
stuff) to programmatically control the current debug flavor. While I'm at it, doxygenate Debug.h and clean it up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85395 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
//===-- Debug.cpp - An easy way to add debug output to your code ----------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements a handle 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.
|
|
//
|
|
// In particular, just wrap your code with the DEBUG() macro, and it will be
|
|
// enabled automatically if you specify '-debug' on the command-line.
|
|
// Alternatively, you can also use the SET_DEBUG_TYPE("foo") macro to specify
|
|
// that your debug code belongs to class "foo". Then, on the command line, you
|
|
// 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/Support/Debug.h"
|
|
using namespace llvm;
|
|
|
|
// All Debug.h functionality is a no-op in NDEBUG mode.
|
|
#ifndef NDEBUG
|
|
bool llvm::DebugFlag; // DebugFlag - Exported boolean set by the -debug option
|
|
|
|
// -debug - Command line option to enable the DEBUG statements in the passes.
|
|
// This flag may only be enabled in debug builds.
|
|
static cl::opt<bool, true>
|
|
Debug("debug", cl::desc("Enable debug output"), cl::Hidden,
|
|
cl::location(DebugFlag));
|
|
|
|
static std::string CurrentDebugType;
|
|
static struct DebugOnlyOpt {
|
|
void operator=(const std::string &Val) const {
|
|
DebugFlag |= !Val.empty();
|
|
CurrentDebugType = Val;
|
|
}
|
|
} DebugOnlyOptLoc;
|
|
|
|
static cl::opt<DebugOnlyOpt, true, cl::parser<std::string> >
|
|
DebugOnly("debug-only", cl::desc("Enable a specific type of debug output"),
|
|
cl::Hidden, cl::value_desc("debug string"),
|
|
cl::location(DebugOnlyOptLoc), cl::ValueRequired);
|
|
|
|
// isCurrentDebugType - Return true if the specified string is the debug type
|
|
// specified on the command line, or if none was specified on the command line
|
|
// with the -debug-only=X option.
|
|
//
|
|
bool llvm::isCurrentDebugType(const char *DebugType) {
|
|
return CurrentDebugType.empty() || DebugType == CurrentDebugType;
|
|
}
|
|
|
|
/// 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 SetCurrentDebugType(const char *Type) {
|
|
CurrentDebugType = Type;
|
|
}
|
|
|
|
#else
|
|
// Avoid "has no symbols" warning.
|
|
namespace llvm {
|
|
int Debug_dummy = 0;
|
|
}
|
|
#endif
|