/[gxemul]/trunk/src/debugger/debugger.c
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revision 38 by dpavlin, Mon Oct 8 16:21:53 2007 UTC revision 42 by dpavlin, Mon Oct 8 16:22:32 2007 UTC
# Line 25  Line 25 
25   *  SUCH DAMAGE.   *  SUCH DAMAGE.
26   *   *
27   *   *
28   *  $Id: debugger.c,v 1.22 2007/03/26 02:01:36 debug Exp $   *  $Id: debugger.c,v 1.26 2007/06/15 17:02:39 debug Exp $
29   *   *
30   *  Single-step debugger.   *  Single-step debugger.
31   *   *
32   *   *
33   *  TODO:   *  This entire module is very much non-reentrant. :-/  TODO: Fix.
  *  
  *      This entire module is very much non-reentrant. :-/  
  *  
  *      Add more functionality that already exists elsewhere in the emulator.  
  *  
  *      Call stack display (back-trace)?  
  *  
  *      Nicer looking output of register dumps, floating point registers,  
  *      etc. Warn about weird/invalid register contents.  
  *  
  *      Ctrl-C doesn't enter the debugger on some OSes (HP-UX?)...  
  *  
  *      Many other TODOs.  
34   */   */
35    
36  #include <ctype.h>  #include <ctype.h>
# Line 183  static void show_breakpoint(struct machi Line 170  static void show_breakpoint(struct machi
170  {  {
171          printf("%3i: 0x", i);          printf("%3i: 0x", i);
172          if (m->cpus[0]->is_32bit)          if (m->cpus[0]->is_32bit)
173                  printf("%08"PRIx32, (uint32_t) m->breakpoint_addr[i]);                  printf("%08"PRIx32, (uint32_t) m->breakpoints.addr[i]);
174          else          else
175                  printf("%016"PRIx64, (uint64_t) m->breakpoint_addr[i]);                  printf("%016"PRIx64, (uint64_t) m->breakpoints.addr[i]);
176          if (m->breakpoint_string[i] != NULL)          if (m->breakpoints.string[i] != NULL)
177                  printf(" (%s)", m->breakpoint_string[i]);                  printf(" (%s)", m->breakpoints.string[i]);
         if (m->breakpoint_flags[i])  
                 printf(": flags=0x%x", m->breakpoint_flags[i]);  
178          printf("\n");          printf("\n");
179  }  }
180    
# Line 215  void debugger_assignment(struct machine Line 200  void debugger_assignment(struct machine
200          uint64_t tmp;          uint64_t tmp;
201          uint64_t old_pc = m->cpus[0]->pc;       /*  TODO: multiple cpus?  */          uint64_t old_pc = m->cpus[0]->pc;       /*  TODO: multiple cpus?  */
202    
203          left  = malloc(MAX_CMD_BUFLEN);          CHECK_ALLOCATION(left = malloc(MAX_CMD_BUFLEN));
         if (left == NULL) {  
                 fprintf(stderr, "out of memory in debugger_assignment()\n");  
                 exit(1);  
         }  
204          strlcpy(left, cmd, MAX_CMD_BUFLEN);          strlcpy(left, cmd, MAX_CMD_BUFLEN);
205          right = strchr(left, '=');          right = strchr(left, '=');
206          if (right == NULL) {          if (right == NULL) {
# Line 700  void debugger(void) Line 681  void debugger(void)
681    
682          /*  ... and reset starttime, so that nr of instructions per second          /*  ... and reset starttime, so that nr of instructions per second
683              can be calculated correctly:  */              can be calculated correctly:  */
684          gettimeofday(&debugger_machine->starttime, NULL);          for (i=0; i<debugger_machine->ncpus; i++) {
685          debugger_machine->ninstrs_since_gettimeofday = 0;                  gettimeofday(&debugger_machine->cpus[i]->starttime, NULL);
686                    debugger_machine->cpus[i]->ninstrs_since_gettimeofday = 0;
687            }
688    
689          single_step = NOT_SINGLE_STEPPING;          single_step = NOT_SINGLE_STEPPING;
690          debugger_machine->instruction_trace = old_instruction_trace;          debugger_machine->instruction_trace = old_instruction_trace;
# Line 755  void debugger_init(struct emul **emuls, Line 738  void debugger_init(struct emul **emuls,
738          debugger_cur_emul = 0;          debugger_cur_emul = 0;
739    
740          for (i=0; i<N_PREVIOUS_CMDS; i++) {          for (i=0; i<N_PREVIOUS_CMDS; i++) {
741                  last_cmd[i] = malloc(MAX_CMD_BUFLEN);                  CHECK_ALLOCATION(last_cmd[i] = malloc(MAX_CMD_BUFLEN));
                 if (last_cmd[i] == NULL) {  
                         fprintf(stderr, "debugger_init(): out of memory\n");  
                         exit(1);  
                 }  
742                  last_cmd[i][0] = '\0';                  last_cmd[i][0] = '\0';
743          }          }
744    
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