include/exec/cpu_ldst_useronly_template.h

   1 /*
   2  *  User-only accessor function support
   3  *
   4  * Generate inline load/store functions for one data size.
   5  *
   6  * Generate a store function as well as signed and unsigned loads.
   7  *
   8  * Not used directly but included from cpu_ldst.h.
   9  *
  10  *  Copyright (c) 2015 Linaro Limited
  11  *
  12  * This library is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU Lesser General Public
  14  * License as published by the Free Software Foundation; either
  15  * version 2 of the License, or (at your option) any later version.
  16  *
  17  * This library is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * Lesser General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Lesser General Public
  23  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  24  */
  25
  26 #if !defined(CODE_ACCESS)
  27 #include "trace-root.h"
  28 #endif
  29
  30 #include "trace/mem.h"
  31
  32 #if DATA_SIZE == 8
  33 #define SUFFIX q
  34 #define USUFFIX q
  35 #define DATA_TYPE uint64_t
  36 #define SHIFT 3
  37 #elif DATA_SIZE == 4
  38 #define SUFFIX l
  39 #define USUFFIX l
  40 #define DATA_TYPE uint32_t
  41 #define SHIFT 2
  42 #elif DATA_SIZE == 2
  43 #define SUFFIX w
  44 #define USUFFIX uw
  45 #define DATA_TYPE uint16_t
  46 #define DATA_STYPE int16_t
  47 #define SHIFT 1
  48 #elif DATA_SIZE == 1
  49 #define SUFFIX b
  50 #define USUFFIX ub
  51 #define DATA_TYPE uint8_t
  52 #define DATA_STYPE int8_t
  53 #define SHIFT 0
  54 #else
  55 #error unsupported data size
  56 #endif
  57
  58 #if DATA_SIZE == 8
  59 #define RES_TYPE uint64_t
  60 #else
  61 #define RES_TYPE uint32_t
  62 #endif
  63
  64 static inline RES_TYPE
  65 glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(CPUArchState *env, abi_ptr ptr)
  66 {
  67 #if !defined(CODE_ACCESS)
  68     trace_guest_mem_before_exec(
  69         env_cpu(env), ptr,
  70         trace_mem_build_info(SHIFT, false, MO_TE, false));
  71 #endif
  72     return glue(glue(ld, USUFFIX), _p)(g2h(ptr));
  73 }
  74
  75 static inline RES_TYPE
  76 glue(glue(glue(cpu_ld, USUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
  77                                                   abi_ptr ptr,
  78                                                   uintptr_t retaddr)
  79 {
  80     RES_TYPE ret;
  81     helper_retaddr = retaddr;
  82     ret = glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(env, ptr);
  83     helper_retaddr = 0;
  84     return ret;
  85 }
  86
  87 #if DATA_SIZE <= 2
  88 static inline int
  89 glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, abi_ptr ptr)
  90 {
  91 #if !defined(CODE_ACCESS)
  92     trace_guest_mem_before_exec(
  93         env_cpu(env), ptr,
  94         trace_mem_build_info(SHIFT, true, MO_TE, false));
  95 #endif
  96     return glue(glue(lds, SUFFIX), _p)(g2h(ptr));
  97 }
  98
  99 static inline int
 100 glue(glue(glue(cpu_lds, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
 101                                                   abi_ptr ptr,
 102                                                   uintptr_t retaddr)
 103 {
 104     int ret;
 105     helper_retaddr = retaddr;
 106     ret = glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(env, ptr);
 107     helper_retaddr = 0;
 108     return ret;
 109 }
 110 #endif
 111
 112 #ifndef CODE_ACCESS
 113 static inline void
 114 glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, abi_ptr ptr,
 115                                       RES_TYPE v)
 116 {
 117 #if !defined(CODE_ACCESS)
 118     trace_guest_mem_before_exec(
 119         env_cpu(env), ptr,
 120         trace_mem_build_info(SHIFT, false, MO_TE, true));
 121 #endif
 122     glue(glue(st, SUFFIX), _p)(g2h(ptr), v);
 123 }
 124
 125 static inline void
 126 glue(glue(glue(cpu_st, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
 127                                                   abi_ptr ptr,
 128                                                   RES_TYPE v,
 129                                                   uintptr_t retaddr)
 130 {
 131     helper_retaddr = retaddr;
 132     glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(env, ptr, v);
 133     helper_retaddr = 0;
 134 }
 135 #endif
 136
 137 #undef RES_TYPE
 138 #undef DATA_TYPE
 139 #undef DATA_STYPE
 140 #undef SUFFIX
 141 #undef USUFFIX
 142 #undef DATA_SIZE
 143 #undef SHIFT