From: Michael Meissner Date: Wed, 15 Nov 1995 15:36:47 +0000 (+0000) Subject: ppcbug-rom checkin X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cc7ef3c3063a4e6bd6799d418b1bfbd37bc5d927;p=binutils-gdb.git ppcbug-rom checkin --- diff --git a/gdb/ppcbug-rom.c b/gdb/ppcbug-rom.c new file mode 100644 index 00000000000..e20dc6306c9 --- /dev/null +++ b/gdb/ppcbug-rom.c @@ -0,0 +1,211 @@ +/* Remote debugging interface for PPCbug (PowerPC) Rom monitor + for GDB, the GNU debugger. + Copyright 1995 Free Software Foundation, Inc. + + Written by Stu Grossman of Cygnus Support + +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 ppcbug_open PARAMS ((char *args, int from_tty)); + +static void +ppcbug_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; + + fprintf_unfiltered(stderr, "ppcbug_supply_register, %.*s = %.*s\n", regnamelen, regname, vallen, val); + 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); +} + +/* + * 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. So, typing "info reg sp" becomes an "A7". + */ + +static char *ppcbug_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", + + "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7", + "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15", + "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23", + "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31", + +/* pc ps cnd lr cnt xer mq */ + "ip", "msr", "cr", "spr8", "spr9", "spr1", "spr0" +}; + +/* + * Define the monitor command strings. Since these are passed directly + * through to a printf style function, we need can include formatting + * strings. We also need a CR or LF on the end. + */ + +static struct target_ops ppcbug_ops; + +static char *ppcbug_inits[] = {"\r", NULL}; + +static struct monitor_ops ppcbug_cmds = +{ + MO_CLR_BREAK_USES_ADDR, + ppcbug_inits, /* Init strings */ + "g\r", /* continue command */ + "t\r", /* single step */ + NULL, /* interrupt command */ + "br %x\r", /* set a breakpoint */ + "nobr %x\r", /* clear a breakpoint */ + "nobr\r", /* clear all breakpoints */ + "bf %x:%x %x;b\r", /* fill (start count val) */ + { + "ms %x %02x\r", /* setmem.cmdb (addr, value) */ + "ms %x %04x\r", /* setmem.cmdw (addr, value) */ + "ms %x %08x\r", /* setmem.cmdl (addr, value) */ + NULL, /* setmem.cmdll (addr, value) */ + NULL, /* setreg.resp_delim */ + NULL, /* setreg.term */ + NULL, /* setreg.term_cmd */ + }, + { + "md %x:%x;b\r", /* getmem.cmdb (addr, len) */ + "md %x:%x;b\r", /* getmem.cmdw (addr, len) */ + "md %x:%x;b\r", /* getmem.cmdl (addr, len) */ + NULL, /* getmem.cmdll (addr, len) */ + " ", /* getmem.resp_delim */ + NULL, /* getmem.term */ + NULL, /* getmem.term_cmd */ + }, + { + "rs %s %x\r", /* setreg.cmd (name, value) */ + NULL, /* setreg.resp_delim */ + NULL, /* setreg.term */ + NULL /* setreg.term_cmd */ + }, + { + "rs %s\r", /* getreg.cmd (name) */ + "=", /* getreg.resp_delim */ + NULL, /* getreg.term */ + NULL /* getreg.term_cmd */ + }, + "rd\r", /* dump_registers */ + "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)", /* register_pattern */ + ppcbug_supply_register, /* supply_register */ + NULL, /* load_routine (defaults to SRECs) */ + "lo 0\r", /* download command */ + NULL, /* load response */ + "PPC1-Bug>", /* monitor command prompt */ + "\r", /* end-of-line terminator */ + NULL, /* optional command terminator */ + &ppcbug_ops, /* target operations */ + SERIAL_1_STOPBITS, /* number of stop bits */ + ppcbug_regnames, /* registers names */ + MONITOR_OPS_MAGIC /* magic */ + }; + +static void +ppcbug_open(args, from_tty) + char *args; + int from_tty; +{ + monitor_open (args, &ppcbug_cmds, from_tty); +} + +void +_initialize_ppcbug_rom () +{ + init_monitor_ops (&ppcbug_ops); + + ppcbug_ops.to_shortname = "ppcbug"; + ppcbug_ops.to_longname = "PowerPC PPCBug monitor"; + ppcbug_ops.to_doc = "Debug via the PowerPC PPCBug monitor.\n\ +Specify the serial device it is connected to (e.g. /dev/ttya)."; + ppcbug_ops.to_open = ppcbug_open; + + add_target (&ppcbug_ops); +}