projects / mirror_qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| dcdaadb6 LV |
1 | /* |
| 2 | * Helper functions for guest memory tracing | |
| 3 | * | |
| 4 | * Copyright (C) 2016 Lluís Vilanova <vilanova@ac.upc.edu> | |
| 5 | * | |
| 6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
| 7 | * See the COPYING file in the top-level directory. | |
| 8 | */ | |
| 9 | ||
| 10 | #ifndef TRACE__MEM_INTERNAL_H | |
| 11 | #define TRACE__MEM_INTERNAL_H | |
| 12 | ||
| 13 | static inline uint8_t trace_mem_get_info(TCGMemOp op, bool store) | |
| 14 | { | |
| 15 | uint8_t res = op; | |
| 16 | bool be = (op & MO_BSWAP) == MO_BE; | |
| 17 | ||
| 18 | /* remove untraced fields */ | |
| 19 | res &= (1ULL << 4) - 1; | |
| 20 | /* make endianness absolute */ | |
| 21 | res &= ~MO_BSWAP; | |
| 22 | if (be) { | |
| 23 | res |= 1ULL << 3; | |
| 24 | } | |
| 25 | /* add fields */ | |
| 26 | if (store) { | |
| 27 | res |= 1ULL << 4; | |
| 28 | } | |
| 29 | ||
| 30 | return res; | |
| 31 | } | |
| 32 | ||
| 33 | static inline uint8_t trace_mem_build_info( | |
| 34 | TCGMemOp size, bool sign_extend, TCGMemOp endianness, bool store) | |
| 35 | { | |
| 36 | uint8_t res = 0; | |
| 37 | res |= size; | |
| 38 | res |= (sign_extend << 2); | |
| 39 | if (endianness == MO_BE) { | |
| 40 | res |= (1ULL << 3); | |
| 41 | } | |
| 42 | res |= (store << 4); | |
| 43 | return res; | |
| 44 | } | |
| 45 | ||
| 175de524 | 46 | #endif /* TRACE__MEM_INTERNAL_H */ |