| //===-- 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); |
| bool patchTypedEvent(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(); |
| extern void __xray_TypedEvent(); |
| } |
| |
| #endif |