arch/ppc-all/exec/alert_cpu.c

   1 /*
   2     Copyright © 2010-2012, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: PowerPC CPU context parsing routines.
   6     Lang: english
   7 */
   8
   9 #define DEBUG 1
  10
  11 #include <exec/rawfmt.h>
  12 #include <proto/exec.h>
  13
  14 #include <string.h>
  15
  16 #include "exec_intern.h"
  17 #include "exec_util.h"
  18
  19 static const char *gpr_fmt = "MSR=%08lx  IP=%08lx   CR =%08lx  XER=%08lx\n"
  20                              "CTR=%08lx  LR=%08lx DSISR=%08lx  DAR=%08lx\n"
  21                              "R0 =%08lx  R1=%08lx   R2 =%08lx  R3 =%08lx\n"
  22                              "R4 =%08lx  R5=%08lx   R6 =%08lx  R7 =%08lx\n"
  23                              "R8 =%08lx  R9=%08lx   R10=%08lx  R11=%08lx\n"     \
  24                              "R12=%08lx";
  25
  26 static const char *gp2_fmt =          " R13=%08lx   R14=%08lx  R15=%08lx\n"
  27                              "R16=%08lx R17=%08lx   R18=%08lx  R19=%08lx\n"
  28                              "R20=%08lx R21=%08lx   R22=%08lx  R23=%08lx\n"
  29                              "R24=%08lx R25=%08lx   R26=%08lx  R27=%08lx\n"
  30                              "R28=%08lx R29=%08lx   R30=%08lx  R31=%08lx";
  31
  32 char *FormatCPUContext(char *buffer, struct ExceptionContext *ctx, struct ExecBase *SysBase)
  33 {
  34     VOID_FUNC dest = buffer ? RAWFMTFUNC_STRING : RAWFMTFUNC_SERIAL;
  35     char *buf;
  36
  37     buf = NewRawDoFmt(gpr_fmt, dest, buffer,
  38                       ctx->msr    , ctx->ip    , ctx->cr     , ctx->xer,
  39                       ctx->ctr    , ctx->lr    , ctx->dsisr  , ctx->dar,
  40                       ctx->gpr[0] , ctx->gpr[1], ctx->gpr[2] , ctx->gpr[3],
  41                       ctx->gpr[4] , ctx->gpr[5], ctx->gpr[6] , ctx->gpr[7],
  42                       ctx->gpr[8] , ctx->gpr[9], ctx->gpr[10], ctx->gpr[11],
  43                       ctx->gpr[12]);
  44     if (ctx->Flags & ECF_FULL_GPRS)
  45     {
  46         buf = NewRawDoFmt(gp2_fmt, dest, buf - 1,
  47                           ctx->gpr[13], ctx->gpr[14], ctx->gpr[15],
  48                           ctx->gpr[16], ctx->gpr[17], ctx->gpr[18],  ctx->gpr[19],
  49                           ctx->gpr[20], ctx->gpr[21], ctx->gpr[22],  ctx->gpr[23],
  50                           ctx->gpr[24], ctx->gpr[25], ctx->gpr[26],  ctx->gpr[27],
  51                           ctx->gpr[28], ctx->gpr[29], ctx->gpr[30],  ctx->gpr[31]);
  52     }
  53
  54     return buf - 1;
  55 }
  56
  57 /* Unwind a single stack frame. CPU-dependent. */
  58 APTR UnwindFrame(APTR fp, APTR *caller)
  59 {
  60     APTR *sp = fp;
  61
  62     sp = sp[0]; /* Go to previous frame first */
  63     if (sp)
  64         *caller = sp[1]; /* Caller address is stored in *caller's* frame */
  65
  66     return sp;
  67 }