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 #ifdef CODE_ACCESS
  68     RES_TYPE ret;
  69     set_helper_retaddr(1);
  70     ret = glue(glue(ld, USUFFIX), _p)(g2h(ptr));
  71     clear_helper_retaddr();
  72     return ret;
  73 #else
  74     trace_guest_mem_before_exec(
  75         env_cpu(env), ptr,
  76         trace_mem_build_info(SHIFT, false, MO_TE, false));
  77     return glue(glue(ld, USUFFIX), _p)(g2h(ptr));
  78 #endif
  79 }
  80
  81 #ifndef CODE_ACCESS
  82 static inline RES_TYPE
  83 glue(glue(glue(cpu_ld, USUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
  84                                                   abi_ptr ptr,
  85                                                   uintptr_t retaddr)
  86 {
  87     RES_TYPE ret;
  88     set_helper_retaddr(retaddr);
  89     ret = glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(env, ptr);
  90     clear_helper_retaddr();
  91     return ret;
  92 }
  93 #endif
  94
  95 #if DATA_SIZE <= 2
  96 static inline int
  97 glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, abi_ptr ptr)
  98 {
  99 #ifdef CODE_ACCESS
 100     int ret;
 101     set_helper_retaddr(1);
 102     ret = glue(glue(lds, SUFFIX), _p)(g2h(ptr));
 103     clear_helper_retaddr();
 104     return ret;
 105 #else
 106     trace_guest_mem_before_exec(
 107         env_cpu(env), ptr,
 108         trace_mem_build_info(SHIFT, true, MO_TE, false));
 109     return glue(glue(lds, SUFFIX), _p)(g2h(ptr));
 110 #endif
 111 }
 112
 113 #ifndef CODE_ACCESS
 114 static inline int
 115 glue(glue(glue(cpu_lds, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
 116                                                   abi_ptr ptr,
 117                                                   uintptr_t retaddr)
 118 {
 119     int ret;
 120     set_helper_retaddr(retaddr);
 121     ret = glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(env, ptr);
 122     clear_helper_retaddr();
 123     return ret;
 124 }
 125 #endif /* CODE_ACCESS */
 126 #endif /* DATA_SIZE <= 2 */
 127
 128 #ifndef CODE_ACCESS
 129 static inline void
 130 glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, abi_ptr ptr,
 131                                       RES_TYPE v)
 132 {
 133     trace_guest_mem_before_exec(
 134         env_cpu(env), ptr,
 135         trace_mem_build_info(SHIFT, false, MO_TE, true));
 136     glue(glue(st, SUFFIX), _p)(g2h(ptr), v);
 137 }
 138
 139 static inline void
 140 glue(glue(glue(cpu_st, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
 141                                                   abi_ptr ptr,
 142                                                   RES_TYPE v,
 143                                                   uintptr_t retaddr)
 144 {
 145     set_helper_retaddr(retaddr);
 146     glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(env, ptr, v);
 147     clear_helper_retaddr();
 148 }
 149 #endif
 150
 151 #undef RES_TYPE
 152 #undef DATA_TYPE
 153 #undef DATA_STYPE
 154 #undef SUFFIX
 155 #undef USUFFIX
 156 #undef DATA_SIZE
 157 #undef SHIFT