diff options
Diffstat (limited to 'gdb/dink32-rom.c')
| -rw-r--r-- | gdb/dink32-rom.c | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/gdb/dink32-rom.c b/gdb/dink32-rom.c new file mode 100644 index 0000000..c0c2e51 --- /dev/null +++ b/gdb/dink32-rom.c @@ -0,0 +1,198 @@ +/* Remote debugging interface for DINK32 (PowerPC) ROM monitor for + GDB, the GNU debugger. + Copyright 1997 Free Software Foundation, Inc. + +This file is part of GDB. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "defs.h" +#include "gdbcore.h" +#include "target.h" +#include "monitor.h" +#include "serial.h" + +static void dink32_open PARAMS ((char *args, int from_tty)); + +static void +dink32_supply_register (regname, regnamelen, val, vallen) + char *regname; + int regnamelen; + char *val; + int vallen; +{ + int regno = 0, base = 0; + + if (regnamelen < 2 || regnamelen > 4) + return; + + switch (regname[0]) + { + case 'R': + if (regname[1] < '0' || regname[1] > '9') + return; + if (regnamelen == 2) + regno = regname[1] - '0'; + else if (regnamelen == 3 && regname[2] >= '0' && regname[2] <= '9') + regno = (regname[1] - '0') * 10 + (regname[2] - '0'); + else + return; + break; + case 'F': + if (regname[1] != 'R' || regname[2] < '0' || regname[2] > '9') + return; + if (regnamelen == 3) + regno = 32 + regname[2] - '0'; + else if (regnamelen == 4 && regname[3] >= '0' && regname[3] <= '9') + regno = 32 + (regname[2] - '0') * 10 + (regname[3] - '0'); + else + return; + break; + case 'I': + if (regnamelen != 2 || regname[1] != 'P') + return; + regno = 64; + break; + case 'M': + if (regnamelen != 3 || regname[1] != 'S' || regname[2] != 'R') + return; + regno = 65; + break; + case 'C': + if (regnamelen != 2 || regname[1] != 'R') + return; + regno = 66; + break; + case 'S': + if (regnamelen != 4 || regname[1] != 'P' || regname[2] != 'R') + return; + else if (regname[3] == '8') + regno = 67; + else if (regname[3] == '9') + regno = 68; + else if (regname[3] == '1') + regno = 69; + else if (regname[3] == '0') + regno = 70; + else + return; + break; + default: + return; + } + + monitor_supply_register (regno, val); +} + +static void +dink32_load (monops, filename, from_tty) + struct monitor_ops *monops; + char *filename; + int from_tty; +{ + extern int inferior_pid; + + generic_load (filename, from_tty); + + /* Finally, make the PC point at the start address */ + if (exec_bfd) + write_pc (bfd_get_start_address (exec_bfd)); + + inferior_pid = 0; /* No process now */ +} + + +/* This array of registers needs to match the indexes used by GDB. The + whole reason this exists is because the various ROM monitors use + different names than GDB does, and don't support all the registers + either. */ + +static char *dink32_regnames[NUM_REGS] = +{ + "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", + "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", + "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", + "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", + + "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", + "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", + "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", + "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", + + "srr0", "msr", "cr", "lr", "ctr", "xer", "xer" +}; + +static struct target_ops dink32_ops; + +static char *dink32_inits[] = {"\r", NULL}; + +static struct monitor_ops dink32_cmds; + +static void +dink32_open (args, from_tty) + char *args; + int from_tty; +{ + monitor_open (args, &dink32_cmds, from_tty); +} + +void +_initialize_dink32_rom () +{ + 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; + dink32_cmds.init = dink32_inits; + dink32_cmds.cont = "go +\r"; + dink32_cmds.step = "tr +\r"; + dink32_cmds.set_break = "bp 0x%x\r"; + dink32_cmds.clr_break = "bp %d\r"; +#if 0 /* Would need to follow strict alignment rules.. */ + dink32_cmds.fill = "mf %x %x %x\r"; +#endif + dink32_cmds.setmem.cmdb = "mm -b %x\r"; + dink32_cmds.setmem.cmdw = "mm -w %x\r"; + dink32_cmds.setmem.cmdl = "mm %x\r"; + dink32_cmds.setmem.term = " ? "; + dink32_cmds.getmem.cmdb = "md %x\r"; + dink32_cmds.getmem.resp_delim = " "; + dink32_cmds.setreg.cmd = "rm %s\r"; + dink32_cmds.setreg.term = " ? "; + dink32_cmds.getreg.cmd = "rd %s\r"; + dink32_cmds.getreg.resp_delim = ": "; + dink32_cmds.dump_registers = "rd r\r"; + dink32_cmds.register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)"; + dink32_cmds.supply_register = dink32_supply_register; + /* S-record download, via "keyboard port". */ + dink32_cmds.load = "dl -k\r"; + dink32_cmds.loadresp = "Set Input Port : set to Keyboard Port\r"; +#if 0 /* slow load routine not needed if S-records work... */ + dink32_cmds.load_routine = dink32_load; +#endif + dink32_cmds.prompt = "DINK32_603 >>"; + dink32_cmds.line_term = "\r"; + dink32_cmds.target = &dink32_ops; + dink32_cmds.stopbits = SERIAL_1_STOPBITS; + dink32_cmds.regnames = dink32_regnames; + dink32_cmds.magic = MONITOR_OPS_MAGIC; + + init_monitor_ops (&dink32_ops); + + dink32_ops.to_shortname = "dink32"; + dink32_ops.to_longname = "DINK32 monitor"; + dink32_ops.to_doc = "Debug using the DINK32 monitor.\n\ +Specify the serial device it is connected to (e.g. /dev/ttya)."; + dink32_ops.to_open = dink32_open; + + add_target (&dink32_ops); +} |