| 1 | /* Remote debugging interface for DINK32 (PowerPC) ROM monitor for |
| 2 | GDB, the GNU debugger. |
| 3 | Copyright (C) 1997, 1999, 2000, 2001, 2007 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., 51 Franklin Street, Fifth Floor, |
| 20 | Boston, MA 02110-1301, 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 (struct regcache *regcache, char *regname, |
| 35 | int regnamelen, char *val, int vallen) |
| 36 | { |
| 37 | int regno = 0; |
| 38 | |
| 39 | if (regnamelen < 2 || regnamelen > 4) |
| 40 | return; |
| 41 | |
| 42 | switch (regname[0]) |
| 43 | { |
| 44 | case 'R': |
| 45 | if (regname[1] < '0' || regname[1] > '9') |
| 46 | return; |
| 47 | if (regnamelen == 2) |
| 48 | regno = regname[1] - '0'; |
| 49 | else if (regnamelen == 3 && regname[2] >= '0' && regname[2] <= '9') |
| 50 | regno = (regname[1] - '0') * 10 + (regname[2] - '0'); |
| 51 | else |
| 52 | return; |
| 53 | break; |
| 54 | case 'F': |
| 55 | if (regname[1] != 'R' || regname[2] < '0' || regname[2] > '9') |
| 56 | return; |
| 57 | if (regnamelen == 3) |
| 58 | regno = 32 + regname[2] - '0'; |
| 59 | else if (regnamelen == 4 && regname[3] >= '0' && regname[3] <= '9') |
| 60 | regno = 32 + (regname[2] - '0') * 10 + (regname[3] - '0'); |
| 61 | else |
| 62 | return; |
| 63 | break; |
| 64 | case 'I': |
| 65 | if (regnamelen != 2 || regname[1] != 'P') |
| 66 | return; |
| 67 | regno = 64; |
| 68 | break; |
| 69 | case 'M': |
| 70 | if (regnamelen != 3 || regname[1] != 'S' || regname[2] != 'R') |
| 71 | return; |
| 72 | regno = 65; |
| 73 | break; |
| 74 | case 'C': |
| 75 | if (regnamelen != 2 || regname[1] != 'R') |
| 76 | return; |
| 77 | regno = 66; |
| 78 | break; |
| 79 | case 'S': |
| 80 | if (regnamelen != 4 || regname[1] != 'P' || regname[2] != 'R') |
| 81 | return; |
| 82 | else if (regname[3] == '8') |
| 83 | regno = 67; |
| 84 | else if (regname[3] == '9') |
| 85 | regno = 68; |
| 86 | else if (regname[3] == '1') |
| 87 | regno = 69; |
| 88 | else if (regname[3] == '0') |
| 89 | regno = 70; |
| 90 | else |
| 91 | return; |
| 92 | break; |
| 93 | default: |
| 94 | return; |
| 95 | } |
| 96 | |
| 97 | monitor_supply_register (regcache, regno, val); |
| 98 | } |
| 99 | |
| 100 | /* This array of registers needs to match the indexes used by GDB. The |
| 101 | whole reason this exists is because the various ROM monitors use |
| 102 | different names than GDB does, and don't support all the registers |
| 103 | either. */ |
| 104 | |
| 105 | static char *dink32_regnames[] = |
| 106 | { |
| 107 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", |
| 108 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", |
| 109 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", |
| 110 | "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", |
| 111 | |
| 112 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", |
| 113 | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", |
| 114 | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", |
| 115 | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", |
| 116 | |
| 117 | "srr0", "msr", "cr", "lr", "ctr", "xer", "xer" |
| 118 | }; |
| 119 | |
| 120 | static struct target_ops dink32_ops; |
| 121 | |
| 122 | static char *dink32_inits[] = |
| 123 | {"\r", NULL}; |
| 124 | |
| 125 | static struct monitor_ops dink32_cmds; |
| 126 | |
| 127 | static void |
| 128 | dink32_open (char *args, int from_tty) |
| 129 | { |
| 130 | monitor_open (args, &dink32_cmds, from_tty); |
| 131 | } |
| 132 | |
| 133 | extern initialize_file_ftype _initialize_dink32_rom; /* -Wmissing-prototypes */ |
| 134 | |
| 135 | void |
| 136 | _initialize_dink32_rom (void) |
| 137 | { |
| 138 | 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; |
| 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; |
| 169 | |
| 170 | init_monitor_ops (&dink32_ops); |
| 171 | |
| 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; |
| 177 | |
| 178 | add_target (&dink32_ops); |
| 179 | } |