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 #include "sbcl.h"
  18 #include "globals.h"
  19 #include "runtime.h"
  20 #include <signal.h>
  21 #include <ucontext.h>
  22 #include <limits.h>
  23 #include <mach-o/dyld.h>
  24 #include "arch.h"
  25 #include "interr.h"                     /* for declaration of lose */
  26
  27 #ifdef LISP_FEATURE_SB_THREAD
  28 #error "Define threading support functions"
  29 #else
  30 int arch_os_thread_init(struct thread *thread) {
  31     return 1;                   /* success */
  32 }
  33 int arch_os_thread_cleanup(struct thread *thread) {
  34     return 1;                   /* success */
  35 }
  36 #endif
  37
  38 os_context_register_t   *
  39 os_context_register_addr(os_context_t *context, int offset)
  40 {
  41     ppc_saved_state_t *state = &context->uc_mcontext->ss;
  42     switch(offset) {
  43     case 0:
  44         return (os_context_register_t *) &state->r0;
  45     case 1:
  46         return (os_context_register_t *) &state->r1;
  47     case 2:
  48         return (os_context_register_t *) &state->r2;
  49     case 3:
  50         return (os_context_register_t *) &state->r3;
  51     case 4:
  52         return (os_context_register_t *) &state->r4;
  53     case 5:
  54         return (os_context_register_t *) &state->r5;
  55     case 6:
  56         return (os_context_register_t *) &state->r6;
  57     case 7:
  58         return (os_context_register_t *) &state->r7;
  59     case 8:
  60         return (os_context_register_t *) &state->r8;
  61     case 9:
  62         return (os_context_register_t *) &state->r9;
  63     case 10:
  64         return (os_context_register_t *) &state->r10;
  65     case 11:
  66         return (os_context_register_t *) &state->r11;
  67     case 12:
  68         return (os_context_register_t *) &state->r12;
  69     case 13:
  70         return (os_context_register_t *) &state->r13;
  71     case 14:
  72         return (os_context_register_t *) &state->r14;
  73     case 15:
  74         return (os_context_register_t *) &state->r15;
  75     case 16:
  76         return (os_context_register_t *) &state->r16;
  77     case 17:
  78         return (os_context_register_t *) &state->r17;
  79     case 18:
  80         return (os_context_register_t *) &state->r18;
  81     case 19:
  82         return (os_context_register_t *) &state->r19;
  83     case 20:
  84         return (os_context_register_t *) &state->r20;
  85     case 21:
  86         return (os_context_register_t *) &state->r21;
  87     case 22:
  88         return (os_context_register_t *) &state->r22;
  89     case 23:
  90         return (os_context_register_t *) &state->r23;
  91     case 24:
  92         return (os_context_register_t *) &state->r24;
  93     case 25:
  94         return (os_context_register_t *) &state->r25;
  95     case 26:
  96         return (os_context_register_t *) &state->r26;
  97     case 27:
  98         return (os_context_register_t *) &state->r27;
  99     case 28:
 100         return (os_context_register_t *) &state->r28;
 101     case 29:
 102         return (os_context_register_t *) &state->r29;
 103     case 30:
 104         return (os_context_register_t *) &state->r30;
 105     case 31:
 106         return (os_context_register_t *) &state->r31;
 107     case 41:
 108         /* PT_DAR */
 109         return (os_context_register_t *) &context->uc_mcontext->es.dar;
 110     case 42:
 111         /* PT_DSISR */
 112         return (os_context_register_t *) &context->uc_mcontext->es.dsisr;
 113     default:
 114         lose("bad offset to os_context_register_addr");
 115     }
 116 }
 117
 118 os_context_register_t *
 119 os_context_lr_addr(os_context_t *context)
 120 {
 121     return (os_context_register_t *) &context->uc_mcontext->ss.lr;
 122 }
 123
 124 os_context_register_t *
 125 os_context_pc_addr(os_context_t *context)
 126 {
 127     return &context->uc_mcontext->ss.srr0;
 128 }
 129
 130 void
 131 os_flush_icache(os_vm_address_t address, os_vm_size_t length)
 132 {
 133     /* see ppc-arch.c */
 134     ppc_flush_icache(address,length);
 135 }
 136