gdb/dink32-rom.c - gdb

Global variables defined

Functions defined

Source code

  1. /* Remote debugging interface for DINK32 (PowerPC) ROM monitor for
  2.    GDB, the GNU debugger.
  3.    Copyright (C) 1997-2015 Free Software Foundation, Inc.

  5.    This file is part of GDB.

  7.    This program is free software; you can redistribute it and/or modify
  8.    it under the terms of the GNU General Public License as published by
  9.    the Free Software Foundation; either version 3 of the License, or
  10.    (at your option) any later version.

  12.    This program is distributed in the hope that it will be useful,
  13.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15.    GNU General Public License for more details.

  17.    You should have received a copy of the GNU General Public License
  18.    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

  20. #include "defs.h"
  21. #include "gdbcore.h"
  22. #include "target.h"
  23. #include "monitor.h"
  24. #include "serial.h"
  25. #include "symfile.h" /* For generic_load() */
  26. #include "inferior.h"
  27. #include "regcache.h"

  29. static void
  30. ‌dink32_supply_register (struct regcache *regcache, char *regname,
  31.                         int regnamelen, char *val, int vallen)
  32. {
  33.   int regno = 0;

  35.   if (regnamelen < 2 || regnamelen > 4)
  36.     return;

  38.   switch (regname[0])
  39.     {
  40.     case 'R':
  41.       if (regname[1] < '0' || regname[1] > '9')
  42.         return;
  43.       if (regnamelen == 2)
  44.         regno = regname[1] - '0';
  45.       else if (regnamelen == 3 && regname[2] >= '0' && regname[2] <= '9')
  46.         regno = (regname[1] - '0') * 10 + (regname[2] - '0');
  47.       else
  48.         return;
  49.       break;
  50.     case 'F':
  51.       if (regname[1] != 'R' || regname[2] < '0' || regname[2] > '9')
  52.         return;
  53.       if (regnamelen == 3)
  54.         regno = 32 + regname[2] - '0';
  55.       else if (regnamelen == 4 && regname[3] >= '0' && regname[3] <= '9')
  56.         regno = 32 + (regname[2] - '0') * 10 + (regname[3] - '0');
  57.       else
  58.         return;
  59.       break;
  60.     case 'I':
  61.       if (regnamelen != 2 || regname[1] != 'P')
  62.         return;
  63.       regno = 64;
  64.       break;
  65.     case 'M':
  66.       if (regnamelen != 3 || regname[1] != 'S' || regname[2] != 'R')
  67.         return;
  68.       regno = 65;
  69.       break;
  70.     case 'C':
  71.       if (regnamelen != 2 || regname[1] != 'R')
  72.         return;
  73.       regno = 66;
  74.       break;
  75.     case 'S':
  76.       if (regnamelen != 4 || regname[1] != 'P' || regname[2] != 'R')
  77.         return;
  78.       else if (regname[3] == '8')
  79.         regno = 67;
  80.       else if (regname[3] == '9')
  81.         regno = 68;
  82.       else if (regname[3] == '1')
  83.         regno = 69;
  84.       else if (regname[3] == '0')
  85.         regno = 70;
  86.       else
  87.         return;
  88.       break;
  89.     default:
  90.       return;
  91.     }

  93.   monitor_supply_register (regcache, regno, val);
  94. }

  96. /* This array of registers needs to match the indexes used by GDB.
  97.    The whole reason this exists is because the various ROM monitors
  98.    use different names than GDB does, and don't support all the
  99.    registers either.  */

  101. ‌static char *dink32_regnames[] =
  102. {
  103.   "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
  104.   "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
  105.   "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
  106.   "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",

  108.   "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
  109.   "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
  110.   "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
  111.   "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",

  113.   "srr0", "msr", "cr", "lr", "ctr", "xer", "xer"
  114. };

  116. ‌static struct target_ops dink32_ops;

  118. ‌static char *dink32_inits[] =
  119. {"\r", NULL};

  121. ‌static struct monitor_ops dink32_cmds;

  123. static void
  124. ‌dink32_open (const char *args, int from_tty)
  125. {
  126.   monitor_open (args, &dink32_cmds, from_tty);
  127. }

  129. extern initialize_file_ftype _initialize_dink32_rom; /* -Wmissing-prototypes */

  131. void
  132. ‌_initialize_dink32_rom (void)
  133. {
  134.   dink32_cmds.flags = MO_HEX_PREFIX | MO_GETMEM_NEEDS_RANGE
  135.     | MO_FILL_USES_ADDR | MO_HANDLE_NL | MO_32_REGS_PAIRED
  136.     | MO_SETREG_INTERACTIVE | MO_SETMEM_INTERACTIVE
  137.     | MO_GETMEM_16_BOUNDARY | MO_CLR_BREAK_1_BASED | MO_SREC_ACK
  138.     | MO_SREC_ACK_ROTATE;
  139.   dink32_cmds.init = dink32_inits;
  140.   dink32_cmds.cont = "go +\r";
  141.   dink32_cmds.step = "tr +\r";
  142.   dink32_cmds.set_break = "bp 0x%x\r";
  143.   dink32_cmds.clr_break = "bp %d\r";
  144. #if 0                        /* Would need to follow strict alignment rules..  */
  145.   dink32_cmds.fill = "mf %x %x %x\r";
  146. #endif
  147.   dink32_cmds.setmem.cmdb = "mm -b %x\r";
  148.   dink32_cmds.setmem.cmdw = "mm -w %x\r";
  149.   dink32_cmds.setmem.cmdl = "mm %x\r";
  150.   dink32_cmds.setmem.term = " ?  ";
  151.   dink32_cmds.getmem.cmdb = "md %x\r";
  152.   dink32_cmds.getmem.resp_delim = "        ";
  153.   dink32_cmds.setreg.cmd = "rm %s\r";
  154.   dink32_cmds.setreg.term = " ?  ";
  155.   dink32_cmds.getreg.cmd = "rd %s\r";
  156.   dink32_cmds.getreg.resp_delim = ": ";
  157.   dink32_cmds.dump_registers = "rd r\r";
  158.   dink32_cmds.register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)";
  159.   dink32_cmds.supply_register = dink32_supply_register;
  160.   /* S-record download, via "keyboard port".  */
  161.   dink32_cmds.load = "dl -k\r";
  162.   dink32_cmds.loadresp = "Set Input Port : set to Keyboard Port\r";
  163.   dink32_cmds.prompt = "DINK32_603 >>";
  164.   dink32_cmds.line_term = "\r";
  165.   dink32_cmds.target = &dink32_ops;
  166.   dink32_cmds.stopbits = SERIAL_1_STOPBITS;
  167.   dink32_cmds.regnames = dink32_regnames;
  168.   dink32_cmds.magic = MONITOR_OPS_MAGIC;

  170.   init_monitor_ops (&dink32_ops);

  172.   dink32_ops.to_shortname = "dink32";
  173.   dink32_ops.to_longname = "DINK32 monitor";
  174.   dink32_ops.to_doc = "Debug using the DINK32 monitor.\n\
  175. Specify the serial device it is connected to (e.g. /dev/ttya).";
  176.   dink32_ops.to_open = dink32_open;

  178.   add_target (&dink32_ops);
  179. }