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//===- Transforms/Instrumentation.h - Instrumentation passes ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines constructor functions for instrumentation passes.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_INSTRUMENTATION_H
#define LLVM_TRANSFORMS_INSTRUMENTATION_H
#include "llvm/ADT/StringRef.h"
#if defined(__GNUC__) && defined(__linux__) && !defined(ANDROID)
inline void *getDFSanArgTLSPtrForJIT() {
extern __thread __attribute__((tls_model("initial-exec")))
void *__dfsan_arg_tls;
return (void *)&__dfsan_arg_tls;
}
inline void *getDFSanRetValTLSPtrForJIT() {
extern __thread __attribute__((tls_model("initial-exec")))
void *__dfsan_retval_tls;
return (void *)&__dfsan_retval_tls;
}
#endif
namespace llvm {
class ModulePass;
class FunctionPass;
// Insert GCOV profiling instrumentation
struct GCOVOptions {
static GCOVOptions getDefault();
// Specify whether to emit .gcno files.
bool EmitNotes;
// Specify whether to modify the program to emit .gcda files when run.
bool EmitData;
// A four-byte version string. The meaning of a version string is described in
// gcc's gcov-io.h
char Version[4];
// Emit a "cfg checksum" that follows the "line number checksum" of a
// function. This affects both .gcno and .gcda files.
bool UseCfgChecksum;
// Add the 'noredzone' attribute to added runtime library calls.
bool NoRedZone;
// Emit the name of the function in the .gcda files. This is redundant, as
// the function identifier can be used to find the name from the .gcno file.
bool FunctionNamesInData;
};
ModulePass *createGCOVProfilerPass(const GCOVOptions &Options =
GCOVOptions::getDefault());
// Insert AddressSanitizer (address sanity checking) instrumentation
FunctionPass *createAddressSanitizerFunctionPass();
ModulePass *createAddressSanitizerModulePass();
// Insert MemorySanitizer instrumentation (detection of uninitialized reads)
FunctionPass *createMemorySanitizerPass(int TrackOrigins = 0);
// Insert ThreadSanitizer (race detection) instrumentation
FunctionPass *createThreadSanitizerPass();
// Insert DataFlowSanitizer (dynamic data flow analysis) instrumentation
ModulePass *createDataFlowSanitizerPass(StringRef ABIListFile = StringRef(),
void *(*getArgTLS)() = nullptr,
void *(*getRetValTLS)() = nullptr);
// Insert SanitizerCoverage instrumentation.
ModulePass *createSanitizerCoverageModulePass(int CoverageLevel);
#if defined(__GNUC__) && defined(__linux__) && !defined(ANDROID)
inline ModulePass *createDataFlowSanitizerPassForJIT(StringRef ABIListFile =
StringRef()) {
return createDataFlowSanitizerPass(ABIListFile, getDFSanArgTLSPtrForJIT,
getDFSanRetValTLSPtrForJIT);
}
#endif
// BoundsChecking - This pass instruments the code to perform run-time bounds
// checking on loads, stores, and other memory intrinsics.
FunctionPass *createBoundsCheckingPass();
/// createDebugIRPass - Enable interactive stepping through LLVM IR in LLDB (or
/// GDB) and generate a file with the LLVM IR to be
/// displayed in the debugger.
///
/// Existing debug metadata is preserved (but may be modified) in order to allow
/// accessing variables in the original source. The line table and file
/// information is modified to correspond to the lines in the LLVM IR. If
/// Filename and Directory are empty, a file name is generated based on existing
/// debug information. If no debug information is available, a temporary file
/// name is generated.
///
/// @param HideDebugIntrinsics Omit debug intrinsics in emitted IR source file.
/// @param HideDebugMetadata Omit debug metadata in emitted IR source file.
/// @param Directory Embed this directory in the debug information.
/// @param Filename Embed this file name in the debug information.
ModulePass *createDebugIRPass(bool HideDebugIntrinsics,
bool HideDebugMetadata,
StringRef Directory = StringRef(),
StringRef Filename = StringRef());
/// createDebugIRPass - Enable interactive stepping through LLVM IR in LLDB
/// (or GDB) with an existing IR file on disk. When creating
/// a DebugIR pass with this function, no source file is
/// output to disk and the existing one is unmodified. Debug
/// metadata in the Module is created/updated to point to
/// the existing textual IR file on disk.
/// NOTE: If the IR file to be debugged is not on disk, use the version of this
/// function with parameters in order to generate the file that will be
/// seen by the debugger.
ModulePass *createDebugIRPass();
} // End llvm namespace
#endif
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