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/*
* Helper functions for guest memory tracing
*
* Copyright (C) 2016 Lluís Vilanova <vilanova@ac.upc.edu>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef TRACE__MEM_INTERNAL_H
#define TRACE__MEM_INTERNAL_H
static inline uint8_t trace_mem_get_info(TCGMemOp op, bool store)
{
uint8_t res = op;
bool be = (op & MO_BSWAP) == MO_BE;
/* remove untraced fields */
res &= (1ULL << 4) - 1;
/* make endianness absolute */
res &= ~MO_BSWAP;
if (be) {
res |= 1ULL << 3;
}
/* add fields */
if (store) {
res |= 1ULL << 4;
}
return res;
}
static inline uint8_t trace_mem_build_info(
TCGMemOp size, bool sign_extend, TCGMemOp endianness, bool store)
{
uint8_t res = 0;
res |= size;
res |= (sign_extend << 2);
if (endianness == MO_BE) {
res |= (1ULL << 3);
}
res |= (store << 4);
return res;
}
#endif /* TRACE__MEM_INTERNAL_H */
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