src/runtime/ppc-darwin-os.c

   1 /*
   2  * This is the PowerPC/Darwin incarnation of arch-dependent
   3  * OS-dependent routines. See also "bsdos.c".
   4  */
   5
   6 /*
   7  * This software is part of the SBCL system. See the README file for
   8  * more information.
   9  *
  10  * This software is derived from the CMU CL system, which was
  11  * written at Carnegie Mellon University and released into the
  12  * public domain. The software is in the public domain and is
  13  * provided with absolutely no warranty. See the COPYING and CREDITS
  14  * files for more information.
  15  */
  16
  17
  18 #include "globals.h"
  19 #include <signal.h>
  20 #include <ucontext.h>
  21 #include "bsd-os.h"
  22
  23 os_context_register_t   *
  24 os_context_register_addr(os_context_t *context, int offset)
  25 {
  26     ppc_saved_state_t *state = &context->uc_mcontext->ss;
  27     switch(offset) {
  28     case 0:
  29         return &state->r0;
  30     case 1:
  31         return &state->r1;
  32     case 2:
  33         return &state->r2;
  34     case 3:
  35         return &state->r3;
  36     case 4:
  37         return &state->r4;
  38     case 5:
  39         return &state->r5;
  40     case 6:
  41         return &state->r6;
  42     case 7:
  43         return &state->r7;
  44     case 8:
  45         return &state->r8;
  46     case 9:
  47         return &state->r9;
  48     case 10:
  49         return &state->r10;
  50     case 11:
  51         return &state->r11;
  52     case 12:
  53         return &state->r12;
  54     case 13:
  55         return &state->r13;
  56     case 14:
  57         return &state->r14;
  58     case 15:
  59         return &state->r15;
  60     case 16:
  61         return &state->r16;
  62     case 17:
  63         return &state->r17;
  64     case 18:
  65         return &state->r18;
  66     case 19:
  67         return &state->r19;
  68     case 20:
  69         return &state->r20;
  70     case 21:
  71         return &state->r21;
  72     case 22:
  73         return &state->r22;
  74     case 23:
  75         return &state->r23;
  76     case 24:
  77         return &state->r24;
  78     case 25:
  79         return &state->r25;
  80     case 26:
  81         return &state->r26;
  82     case 27:
  83         return &state->r27;
  84     case 28:
  85         return &state->r28;
  86     case 29:
  87         return &state->r29;
  88     case 30:
  89         return &state->r30;
  90     case 31:
  91         return &state->r31;
  92     case 41:
  93         /* PT_DAR */
  94         return &context->uc_mcontext->es.dar;
  95     case 42:
  96         /* PT_DSISR */
  97         return &context->uc_mcontext->es.dsisr;
  98     }
  99 }
 100
 101 os_context_register_t *
 102 os_context_lr_addr(os_context_t *context)
 103 {
 104     return &context->uc_mcontext->ss.lr;
 105 }
 106
 107 void
 108 os_flush_icache(os_vm_address_t address, os_vm_size_t length)
 109 {
 110     /* see ppc-arch.c */
 111     ppc_flush_icache(address,length);
 112 }