1  #undef __AAPCS64_BIG_ENDIAN__
       2  #ifdef __GNUC__
       3  #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
       4  #define __AAPCS64_BIG_ENDIAN__
       5  #endif
       6  #else
       7  #error unknown compiler
       8  #endif
       9  
      10  #define IN_FRAMEWORK
      11  
      12  #define D0	0
      13  #define D1	8
      14  #define D2	16
      15  #define D3	24
      16  #define D4	32
      17  #define D5	40
      18  #define D6	48
      19  #define D7	56
      20  
      21  #define S0	64
      22  #define S1	68
      23  #define S2	72
      24  #define S3	76
      25  #define S4	80
      26  #define S5	84
      27  #define S6	88
      28  #define S7	92
      29  
      30  #define W0      96
      31  #define W1     100
      32  #define W2     104
      33  #define W3     108
      34  #define W4     112
      35  #define W5     116
      36  #define W6     120
      37  #define W7     124
      38  
      39  #define X0     128
      40  #define X1     136
      41  #define X2     144
      42  #define X3     152
      43  #define X4     160
      44  #define X5     168
      45  #define X6     176
      46  #define X7     184
      47  
      48  #define Q0     192
      49  #define Q1     208
      50  #define Q2     224
      51  #define Q3     240
      52  #define Q4     256
      53  #define Q5     272
      54  #define Q6     288
      55  #define Q7     304
      56  
      57  #define X8     320
      58  #define X9     328
      59  
      60  #define H0	336
      61  #define H1	338
      62  #define H2	340
      63  #define H3	342
      64  #define H4	344
      65  #define H5	346
      66  #define H6	348
      67  #define H7	350
      68  
      69  
      70  #define STACK  352
      71  
      72  /* The type of test.  'myfunc' in abitest.S needs to know which kind of
      73     test it is running to decide what to do at the runtime.  Keep the
      74     related code in abitest.S synchronized if anything is changed here.  */
      75  enum aapcs64_test_kind
      76  {
      77    TK_PARAM = 0,	/* Test parameter passing.  */
      78    TK_VA_ARG,	/* Test va_arg code generation.  */
      79    TK_RETURN	/* Test function return value.  */
      80  };
      81  
      82  int which_kind_of_test;
      83  
      84  extern int printf (const char*, ...);
      85  extern void abort (void);
      86  extern void dumpregs () __asm("myfunc");
      87  
      88  #ifndef MYFUNCTYPE
      89  #define MYFUNCTYPE void
      90  #endif
      91  
      92  #ifndef PCSATTR
      93  #define PCSATTR
      94  #endif
      95  
      96  
      97  #ifdef RUNTIME_ENDIANNESS_CHECK
      98  #ifndef RUNTIME_ENDIANNESS_CHECK_FUNCTION_DEFINED
      99  /* This helper function defined to detect whether there is any incompatibility
     100     issue on endianness between compilation time and run-time environments.
     101     TODO: review the implementation when the work of big-endian support in A64
     102     GCC starts.
     103     */
     104  static void rt_endian_check ()
     105  {
     106    const char* msg_endian[2] = {"little-endian", "big-endian"};
     107    const char* msg_env[2] = {"compile-time", "run-time"};
     108    union
     109    {
     110      unsigned int ui;
     111      unsigned char ch[4];
     112    } u;
     113    int flag = -1;
     114  
     115    u.ui = 0xCAFEBABE;
     116  
     117    printf ("u.ui=0x%X, u.ch[0]=0x%X\n", u.ui, u.ch[0]);
     118  
     119    if (u.ch[0] == 0xBE)
     120      {
     121        /* Little-Endian at run-time */
     122  #ifdef __AAPCS64_BIG_ENDIAN__
     123        /* Big-Endian at compile-time */
     124        flag = 1;
     125  #endif
     126      }
     127    else
     128      {
     129        /* Big-Endian at run-time */
     130  #ifndef __AAPCS64_BIG_ENDIAN__
     131        /* Little-Endian at compile-time */
     132        flag = 0;
     133  #endif
     134      }
     135  
     136    if (flag != -1)
     137      {
     138        /* Endianness conflict exists */
     139        printf ("Error: endianness conflicts between %s and %s:\n\
     140  \t%s: %s\n\t%s: %s\n", msg_env[0], msg_env[1], msg_env[0], msg_endian[flag],
     141  		       msg_env[1], msg_endian[1-flag]);
     142        abort ();
     143      }
     144  
     145    return;
     146  }
     147  #endif
     148  #define RUNTIME_ENDIANNESS_CHECK_FUNCTION_DEFINED
     149  #endif