libffi/src/aarch64/internal.h

   1 /*
   2 Permission is hereby granted, free of charge, to any person obtaining
   3 a copy of this software and associated documentation files (the
   4 ``Software''), to deal in the Software without restriction, including
   5 without limitation the rights to use, copy, modify, merge, publish,
   6 distribute, sublicense, and/or sell copies of the Software, and to
   7 permit persons to whom the Software is furnished to do so, subject to
   8 the following conditions:
   9
  10 The above copyright notice and this permission notice shall be
  11 included in all copies or substantial portions of the Software.
  12
  13 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
  14 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  15 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  16 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  17 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  18 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  19 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
  20
  21 #define AARCH64_RET_VOID        0
  22 #define AARCH64_RET_INT64       1
  23 #define AARCH64_RET_INT128      2
  24
  25 #define AARCH64_RET_UNUSED3     3
  26 #define AARCH64_RET_UNUSED4     4
  27 #define AARCH64_RET_UNUSED5     5
  28 #define AARCH64_RET_UNUSED6     6
  29 #define AARCH64_RET_UNUSED7     7
  30
  31 /* Note that FFI_TYPE_FLOAT == 2, _DOUBLE == 3, _LONGDOUBLE == 4,
  32    so _S4 through _Q1 are layed out as (TYPE * 4) + (4 - COUNT).  */
  33 #define AARCH64_RET_S4          8
  34 #define AARCH64_RET_S3          9
  35 #define AARCH64_RET_S2          10
  36 #define AARCH64_RET_S1          11
  37
  38 #define AARCH64_RET_D4          12
  39 #define AARCH64_RET_D3          13
  40 #define AARCH64_RET_D2          14
  41 #define AARCH64_RET_D1          15
  42
  43 #define AARCH64_RET_Q4          16
  44 #define AARCH64_RET_Q3          17
  45 #define AARCH64_RET_Q2          18
  46 #define AARCH64_RET_Q1          19
  47
  48 /* Note that each of the sub-64-bit integers gets two entries.  */
  49 #define AARCH64_RET_UINT8       20
  50 #define AARCH64_RET_UINT16      22
  51 #define AARCH64_RET_UINT32      24
  52
  53 #define AARCH64_RET_SINT8       26
  54 #define AARCH64_RET_SINT16      28
  55 #define AARCH64_RET_SINT32      30
  56
  57 #define AARCH64_RET_MASK        31
  58
  59 #define AARCH64_RET_IN_MEM      (1 << 5)
  60 #define AARCH64_RET_NEED_COPY   (1 << 6)
  61
  62 #define AARCH64_FLAG_ARG_V_BIT  7
  63 #define AARCH64_FLAG_ARG_V      (1 << AARCH64_FLAG_ARG_V_BIT)
  64
  65 #define N_X_ARG_REG             8
  66 #define N_V_ARG_REG             8
  67 #define CALL_CONTEXT_SIZE       (N_V_ARG_REG * 16 + N_X_ARG_REG * 8)