gdb/nlm/i386.c

   1 #include <dfs.h>
   2 #include <stdio.h>
   3 #include <string.h>
   4 #include <stdlib.h>
   5 #include <ctype.h>
   6 #include <time.h>
   7 #include <conio.h>
   8 #include <advanced.h>
   9 #include <debugapi.h>
  10 #include <process.h>
  11 #include <errno.h>
  12 #include "i386.h"
  13
  14 extern char *mem2hex (void *mem, char *buf, int count, int may_fault);
  15 extern char *hex2mem (char *buf, void *mem, int count, int may_fault);
  16 extern int computeSignal (int exceptionVector);
  17
  18 void
  19 flush_i_cache (void)
  20 {
  21 }
  22
  23 /* Get the registers out of the frame information.  */
  24
  25 void
  26 frame_to_registers (struct StackFrame *frame, char *regs)
  27 {
  28   /* Copy EAX -> EDI */
  29   mem2hex (&frame->ExceptionEAX, &regs[0 * 4 * 2], 4 * 8, 0);
  30
  31   /* Copy EIP & PS */
  32   mem2hex (&frame->ExceptionPC, &regs[8 * 4 * 2], 4 * 2, 0);
  33
  34   /* Copy CS, SS, DS */
  35   mem2hex (&frame->ExceptionCS, &regs[10 * 4 * 2], 4 * 3, 0);
  36
  37   /* Copy ES */
  38   mem2hex (&frame->ExceptionES, &regs[13 * 4 * 2], 4 * 1, 0);
  39
  40   /* Copy FS & GS */
  41   mem2hex (&frame->ExceptionFS, &regs[14 * 4 * 2], 4 * 2, 0);
  42 }
  43
  44 /* Put the registers back into the frame information.  */
  45
  46 void
  47 registers_to_frame (char *regs, struct StackFrame *frame)
  48 {
  49   /* Copy EAX -> EDI */
  50   hex2mem (&regs[0 * 4 * 2], &frame->ExceptionEAX, 4 * 8, 0);
  51
  52   /* Copy EIP & PS */
  53   hex2mem (&regs[8 * 4 * 2], &frame->ExceptionPC, 4 * 2, 0);
  54
  55   /* Copy CS, SS, DS */
  56   hex2mem (&regs[10 * 4 * 2], &frame->ExceptionCS, 4 * 3, 0);
  57
  58   /* Copy ES */
  59   hex2mem (&regs[13 * 4 * 2], &frame->ExceptionES, 4 * 1, 0);
  60
  61   /* Copy FS & GS */
  62   hex2mem (&regs[14 * 4 * 2], &frame->ExceptionFS, 4 * 2, 0);
  63 }
  64
  65 void
  66 set_step_traps (struct StackFrame *frame)
  67 {
  68   frame->ExceptionSystemFlags |= 0x100;
  69 }
  70
  71 void
  72 clear_step_traps (struct StackFrame *frame)
  73 {
  74   frame->ExceptionSystemFlags &= ~0x100;
  75 }
  76
  77 void
  78 do_status (char *ptr, struct StackFrame *frame)
  79 {
  80   int sigval;
  81
  82   sigval = computeSignal (frame->ExceptionNumber);
  83
  84   sprintf (ptr, "T%02x", sigval);
  85   ptr += 3;
  86
  87   sprintf (ptr, "%02x:", PC_REGNUM);
  88   ptr = mem2hex (&frame->ExceptionPC, ptr + 3, 4, 0);
  89   *ptr++ = ';';
  90
  91   sprintf (ptr, "%02x:", SP_REGNUM);
  92   ptr = mem2hex (&frame->ExceptionESP, ptr + 3, 4, 0);
  93   *ptr++ = ';';
  94
  95   sprintf (ptr, "%02x:", FP_REGNUM);
  96   ptr = mem2hex (&frame->ExceptionEBP, ptr + 3, 4, 0);
  97   *ptr++ = ';';
  98
  99   *ptr = '\000';
 100 }