1 /* Remote debugging interface for DINK32 (PowerPC) ROM monitor for 2 GDB, the GNU debugger. 3 Copyright 1997, 1999, 2000, 2001 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 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 2 of the License, or 10 (at your option) any later version. 11 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. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 59 Temple Place - Suite 330, 20 Boston, MA 02111-1307, USA. */ 21 22 #include "defs.h" 23 #include "gdbcore.h" 24 #include "target.h" 25 #include "monitor.h" 26 #include "serial.h" 27 #include "symfile.h" /* For generic_load() */ 28 #include "inferior.h" /* For write_pc() */ 29 #include "regcache.h" 30 31 static void dink32_open (char *args, int from_tty); 32 33 static void 34 dink32_supply_register (char *regname, int regnamelen, char *val, int vallen) 35 { 36 int regno = 0; 37 38 if (regnamelen < 2 || regnamelen > 4) 39 return; 40 41 switch (regname[0]) 42 { 43 case 'R': 44 if (regname[1] < '0' || regname[1] > '9') 45 return; 46 if (regnamelen == 2) 47 regno = regname[1] - '0'; 48 else if (regnamelen == 3 && regname[2] >= '0' && regname[2] <= '9') 49 regno = (regname[1] - '0') * 10 + (regname[2] - '0'); 50 else 51 return; 52 break; 53 case 'F': 54 if (regname[1] != 'R' || regname[2] < '0' || regname[2] > '9') 55 return; 56 if (regnamelen == 3) 57 regno = 32 + regname[2] - '0'; 58 else if (regnamelen == 4 && regname[3] >= '0' && regname[3] <= '9') 59 regno = 32 + (regname[2] - '0') * 10 + (regname[3] - '0'); 60 else 61 return; 62 break; 63 case 'I': 64 if (regnamelen != 2 || regname[1] != 'P') 65 return; 66 regno = 64; 67 break; 68 case 'M': 69 if (regnamelen != 3 || regname[1] != 'S' || regname[2] != 'R') 70 return; 71 regno = 65; 72 break; 73 case 'C': 74 if (regnamelen != 2 || regname[1] != 'R') 75 return; 76 regno = 66; 77 break; 78 case 'S': 79 if (regnamelen != 4 || regname[1] != 'P' || regname[2] != 'R') 80 return; 81 else if (regname[3] == '8') 82 regno = 67; 83 else if (regname[3] == '9') 84 regno = 68; 85 else if (regname[3] == '1') 86 regno = 69; 87 else if (regname[3] == '0') 88 regno = 70; 89 else 90 return; 91 break; 92 default: 93 return; 94 } 95 96 monitor_supply_register (regno, val); 97 } 98 99 /* This array of registers needs to match the indexes used by GDB. The 100 whole reason this exists is because the various ROM monitors use 101 different names than GDB does, and don't support all the registers 102 either. */ 103 104 static char *dink32_regnames[] = 105 { 106 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", 107 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", 108 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", 109 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", 110 111 "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", 112 "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", 113 "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", 114 "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", 115 116 "srr0", "msr", "cr", "lr", "ctr", "xer", "xer" 117 }; 118 119 static struct target_ops dink32_ops; 120 121 static char *dink32_inits[] = 122 {"\r", NULL}; 123 124 static struct monitor_ops dink32_cmds; 125 126 static void 127 dink32_open (char *args, int from_tty) 128 { 129 monitor_open (args, &dink32_cmds, from_tty); 130 } 131 132 extern initialize_file_ftype _initialize_dink32_rom; /* -Wmissing-prototypes */ 133 134 void 135 _initialize_dink32_rom (void) 136 { 137 dink32_cmds.flags = MO_HEX_PREFIX | MO_GETMEM_NEEDS_RANGE | MO_FILL_USES_ADDR | MO_HANDLE_NL | MO_32_REGS_PAIRED | MO_SETREG_INTERACTIVE | MO_SETMEM_INTERACTIVE | MO_GETMEM_16_BOUNDARY | MO_CLR_BREAK_1_BASED | MO_SREC_ACK | MO_SREC_ACK_ROTATE; 138 dink32_cmds.init = dink32_inits; 139 dink32_cmds.cont = "go +\r"; 140 dink32_cmds.step = "tr +\r"; 141 dink32_cmds.set_break = "bp 0x%x\r"; 142 dink32_cmds.clr_break = "bp %d\r"; 143 #if 0 /* Would need to follow strict alignment rules.. */ 144 dink32_cmds.fill = "mf %x %x %x\r"; 145 #endif 146 dink32_cmds.setmem.cmdb = "mm -b %x\r"; 147 dink32_cmds.setmem.cmdw = "mm -w %x\r"; 148 dink32_cmds.setmem.cmdl = "mm %x\r"; 149 dink32_cmds.setmem.term = " ? "; 150 dink32_cmds.getmem.cmdb = "md %x\r"; 151 dink32_cmds.getmem.resp_delim = " "; 152 dink32_cmds.setreg.cmd = "rm %s\r"; 153 dink32_cmds.setreg.term = " ? "; 154 dink32_cmds.getreg.cmd = "rd %s\r"; 155 dink32_cmds.getreg.resp_delim = ": "; 156 dink32_cmds.dump_registers = "rd r\r"; 157 dink32_cmds.register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)"; 158 dink32_cmds.supply_register = dink32_supply_register; 159 /* S-record download, via "keyboard port". */ 160 dink32_cmds.load = "dl -k\r"; 161 dink32_cmds.loadresp = "Set Input Port : set to Keyboard Port\r"; 162 dink32_cmds.prompt = "DINK32_603 >>"; 163 dink32_cmds.line_term = "\r"; 164 dink32_cmds.target = &dink32_ops; 165 dink32_cmds.stopbits = SERIAL_1_STOPBITS; 166 dink32_cmds.regnames = dink32_regnames; 167 dink32_cmds.magic = MONITOR_OPS_MAGIC; 168 169 init_monitor_ops (&dink32_ops); 170 171 dink32_ops.to_shortname = "dink32"; 172 dink32_ops.to_longname = "DINK32 monitor"; 173 dink32_ops.to_doc = "Debug using the DINK32 monitor.\n\ 174 Specify the serial device it is connected to (e.g. /dev/ttya)."; 175 dink32_ops.to_open = dink32_open; 176 177 add_target (&dink32_ops); 178 } 179