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//===-- xray_interface_internal.h -------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is a part of XRay, a dynamic runtime instrumentation system.
//
// Implementation of the API functions. See also include/xray/xray_interface.h.
//
//===----------------------------------------------------------------------===//
#ifndef XRAY_INTERFACE_INTERNAL_H
#define XRAY_INTERFACE_INTERNAL_H
#include "sanitizer_common/sanitizer_platform.h"
#include "xray/xray_interface.h"
#include <cstddef>
#include <cstdint>
extern "C" {
struct XRaySledEntry {
#if SANITIZER_WORDSIZE == 64
uint64_t Address;
uint64_t Function;
unsigned char Kind;
unsigned char AlwaysInstrument;
unsigned char Version;
unsigned char Padding[13]; // Need 32 bytes
#elif SANITIZER_WORDSIZE == 32
uint32_t Address;
uint32_t Function;
unsigned char Kind;
unsigned char AlwaysInstrument;
unsigned char Version;
unsigned char Padding[5]; // Need 16 bytes
#else
#error "Unsupported word size."
#endif
};
struct XRayFunctionSledIndex {
const XRaySledEntry* Begin;
const XRaySledEntry* End;
};
}
namespace __xray {
struct XRaySledMap {
const XRaySledEntry *Sleds;
size_t Entries;
const XRayFunctionSledIndex *SledsIndex;
size_t Functions;
};
bool patchFunctionEntry(bool Enable, uint32_t FuncId,
const XRaySledEntry &Sled, void (*Trampoline)());
bool patchFunctionExit(bool Enable, uint32_t FuncId, const XRaySledEntry &Sled);
bool patchFunctionTailExit(bool Enable, uint32_t FuncId,
const XRaySledEntry &Sled);
bool patchCustomEvent(bool Enable, uint32_t FuncId, const XRaySledEntry &Sled);
} // namespace __xray
extern "C" {
// The following functions have to be defined in assembler, on a per-platform
// basis. See xray_trampoline_*.S files for implementations.
extern void __xray_FunctionEntry();
extern void __xray_FunctionExit();
extern void __xray_FunctionTailExit();
extern void __xray_ArgLoggerEntry();
extern void __xray_CustomEvent();
}
#endif
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