282dffc8a4
This patch introduces several helpers to pass return address which points to the TB. Correct return address allows correct restoring of the guest PC and icount. These functions should be used when helpers embedded into TB invoke memory operations. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150710095650.13280.32255.stgit@PASHA-ISP> Signed-off-by: Richard Henderson <rth@twiddle.net>
107 lines
3 KiB
C
107 lines
3 KiB
C
/*
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* User-only accessor function support
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*
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* Generate inline load/store functions for one data size.
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*
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* Generate a store function as well as signed and unsigned loads.
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*
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* Not used directly but included from cpu_ldst.h.
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*
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* Copyright (c) 2015 Linaro Limited
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#if DATA_SIZE == 8
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#define SUFFIX q
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#define USUFFIX q
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#define DATA_TYPE uint64_t
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#elif DATA_SIZE == 4
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#define SUFFIX l
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#define USUFFIX l
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#define DATA_TYPE uint32_t
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#elif DATA_SIZE == 2
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#define SUFFIX w
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#define USUFFIX uw
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#define DATA_TYPE uint16_t
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#define DATA_STYPE int16_t
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#elif DATA_SIZE == 1
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#define SUFFIX b
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#define USUFFIX ub
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#define DATA_TYPE uint8_t
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#define DATA_STYPE int8_t
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#else
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#error unsupported data size
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#endif
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#if DATA_SIZE == 8
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#define RES_TYPE uint64_t
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#else
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#define RES_TYPE uint32_t
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#endif
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static inline RES_TYPE
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glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr)
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{
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return glue(glue(ld, USUFFIX), _p)(g2h(ptr));
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}
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static inline RES_TYPE
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glue(glue(glue(cpu_ld, USUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
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target_ulong ptr,
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uintptr_t retaddr)
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{
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return glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(env, ptr);
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}
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#if DATA_SIZE <= 2
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static inline int
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glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr)
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{
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return glue(glue(lds, SUFFIX), _p)(g2h(ptr));
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}
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static inline int
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glue(glue(glue(cpu_lds, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
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target_ulong ptr,
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uintptr_t retaddr)
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{
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return glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(env, ptr);
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}
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#endif
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#ifndef CODE_ACCESS
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static inline void
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glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr,
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RES_TYPE v)
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{
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glue(glue(st, SUFFIX), _p)(g2h(ptr), v);
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}
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static inline void
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glue(glue(glue(cpu_st, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
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target_ulong ptr,
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RES_TYPE v,
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uintptr_t retaddr)
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{
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glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(env, ptr, v);
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}
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#endif
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#undef RES_TYPE
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#undef DATA_TYPE
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#undef DATA_STYPE
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#undef SUFFIX
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#undef USUFFIX
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#undef DATA_SIZE
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