| /* Remote target glue for the Intel 960 MON960 ROM monitor. |
| Copyright 1995, 1996 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" |
| #include "srec.h" |
| #include "xmodem.h" |
| #include "symtab.h" |
| #include "symfile.h" /* for generic_load */ |
| #include "inferior.h" /* for write_pc() */ |
| |
| #define USE_GENERIC_LOAD |
| |
| static struct target_ops mon960_ops; |
| |
| static void mon960_open PARAMS ((char *args, int from_tty)); |
| |
| #ifdef USE_GENERIC_LOAD |
| |
| static void |
| mon960_load_gen (filename, from_tty) |
| 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 */ |
| } |
| |
| #else |
| |
| static void |
| mon960_load (desc, file, hashmark) |
| serial_t desc; |
| char *file; |
| int hashmark; |
| { |
| bfd *abfd; |
| asection *s; |
| char *buffer; |
| int i; |
| |
| buffer = alloca (XMODEM_PACKETSIZE); |
| abfd = bfd_openr (file, 0); |
| if (!abfd) |
| { |
| printf_filtered ("Unable to open file %s\n", file); |
| return; |
| } |
| if (bfd_check_format (abfd, bfd_object) == 0) |
| { |
| printf_filtered ("File is not an object file\n"); |
| return; |
| } |
| for (s = abfd->sections; s; s = s->next) |
| if (s->flags & SEC_LOAD) |
| { |
| bfd_size_type section_size; |
| printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma, |
| s->vma + s->_raw_size); |
| gdb_flush (gdb_stdout); |
| monitor_printf (current_monitor->load, s->vma); |
| if (current_monitor->loadresp) |
| monitor_expect (current_monitor->loadresp, NULL, 0); |
| xmodem_init_xfer (desc); |
| section_size = bfd_section_size (abfd, s); |
| for (i = 0; i < section_size; i += XMODEM_DATASIZE) |
| { |
| int numbytes; |
| numbytes = min (XMODEM_DATASIZE, section_size - i); |
| bfd_get_section_contents (abfd, s, buffer + XMODEM_DATAOFFSET, i, |
| numbytes); |
| xmodem_send_packet (desc, buffer, numbytes, hashmark); |
| if (hashmark) |
| { |
| putchar_unfiltered ('#'); |
| gdb_flush (gdb_stdout); |
| } |
| } /* Per-packet (or S-record) loop */ |
| xmodem_finish_xfer (desc); |
| monitor_expect_prompt (NULL, 0); |
| putchar_unfiltered ('\n'); |
| } /* Loadable sections */ |
| if (hashmark) |
| putchar_unfiltered ('\n'); |
| } |
| |
| #endif /* USE_GENERIC_LOAD */ |
| |
| /* This array of registers need to match the indexes used by GDB. |
| This exists because the various ROM monitors use different strings |
| than does GDB, and don't necessarily support all the registers |
| either. So, typing "info reg sp" becomes a "r30". */ |
| |
| /* these correspond to the offsets from tm-* files from config directories */ |
| /* g0-g14, fp, pfp, sp, rip,r3-15, pc, ac, tc, fp0-3 */ |
| /* NOTE: "ip" is documented as "ir" in the Mon960 UG. */ |
| /* NOTE: "ir" can't be accessed... but there's an ip and rip. */ |
| static char *full_regnames[NUM_REGS] = |
| { |
| /* 0 */ "pfp", "sp", "rip", "r3", "r4", "r5", "r6", "r7", |
| /* 8 */ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", |
| /* 16 */ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", |
| /* 24 */ "g8", "g9", "g10", "g11", "g12", "g13", "g14", "fp", |
| /* 32 */ "pc", "ac", "tc", "ip", "fp0", "fp1", "fp2", "fp3", |
| }; |
| |
| static char *mon960_regnames[NUM_REGS]; |
| |
| /* Define the monitor command strings. Since these are passed directly |
| through to a printf style function, we may include formatting |
| strings. We also need a CR or LF on the end. */ |
| |
| /* need to pause the monitor for timing reasons, so slow it down */ |
| |
| #if 0 |
| /* FIXME: this extremely long init string causes MON960 to return two NAKS |
| instead of performing the autobaud recognition, at least when gdb |
| is running on GNU/Linux. The short string below works on Linux, and on |
| SunOS using a tcp serial connection. Must retest on SunOS using a |
| direct serial connection; if that works, get rid of the long string. */ |
| static char *mon960_inits[] = |
| {"\n\r\r\r\r\r\r\r\r\r\r\r\r\r\r\n\r\n\r\n", NULL}; |
| #else |
| static char *mon960_inits[] = |
| {"\r", NULL}; |
| #endif |
| |
| static struct monitor_ops mon960_cmds; |
| |
| static void |
| init_mon960_cmds (void) |
| { |
| mon960_cmds.flags = MO_CLR_BREAK_USES_ADDR |
| | MO_NO_ECHO_ON_OPEN | MO_SEND_BREAK_ON_STOP | MO_GETMEM_READ_SINGLE; /* flags */ |
| mon960_cmds.init = mon960_inits; /* Init strings */ |
| mon960_cmds.cont = "go\n\r"; /* continue command */ |
| mon960_cmds.step = "st\n\r"; /* single step */ |
| mon960_cmds.stop = NULL; /* break interrupts the program */ |
| mon960_cmds.set_break = NULL; /* set a breakpoint */ |
| mon960_cmds.clr_break = /* can't use "br" because only 2 hw bps are supported */ |
| mon960_cmds.clr_all_break = NULL; /* clear a breakpoint - "de" is for hw bps */ |
| NULL, /* clear all breakpoints */ |
| mon960_cmds.fill = NULL; /* fill (start end val) */ |
| /* can't use "fi" because it takes words, not bytes */ |
| /* can't use "mb", "md" or "mo" because they require interaction */ |
| mon960_cmds.setmem.cmdb = NULL; /* setmem.cmdb (addr, value) */ |
| mon960_cmds.setmem.cmdw = NULL; /* setmem.cmdw (addr, value) */ |
| mon960_cmds.setmem.cmdl = "md %x %x\n\r"; /* setmem.cmdl (addr, value) */ |
| mon960_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */ |
| mon960_cmds.setmem.resp_delim = NULL; /* setmem.resp_delim */ |
| mon960_cmds.setmem.term = NULL; /* setmem.term */ |
| mon960_cmds.setmem.term_cmd = NULL; /* setmem.term_cmd */ |
| /* since the parsing of multiple bytes is difficult due to |
| interspersed addresses, we'll only read 1 value at a time, |
| even tho these can handle a count */ |
| mon960_cmds.getmem.cmdb = "db %x\n\r"; /* getmem.cmdb (addr, #bytes) */ |
| mon960_cmds.getmem.cmdw = "ds %x\n\r"; /* getmem.cmdw (addr, #swords) */ |
| mon960_cmds.getmem.cmdl = "di %x\n\r"; /* getmem.cmdl (addr, #words) */ |
| mon960_cmds.getmem.cmdll = "dd %x\n\r"; /* getmem.cmdll (addr, #dwords) */ |
| mon960_cmds.getmem.resp_delim = " : "; /* getmem.resp_delim */ |
| mon960_cmds.getmem.term = NULL; /* getmem.term */ |
| mon960_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */ |
| mon960_cmds.setreg.cmd = "md %s %x\n\r"; /* setreg.cmd (name, value) */ |
| mon960_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */ |
| mon960_cmds.setreg.term = NULL; /* setreg.term */ |
| mon960_cmds.setreg.term_cmd = NULL, /* setreg.term_cmd */ |
| mon960_cmds.getreg.cmd = "di %s\n\r"; /* getreg.cmd (name) */ |
| mon960_cmds.getreg.resp_delim = " : "; /* getreg.resp_delim */ |
| mon960_cmds.getreg.term = NULL; /* getreg.term */ |
| mon960_cmds.getreg.term_cmd = NULL; /* getreg.term_cmd */ |
| mon960_cmds.dump_registers = "re\n\r"; /* dump_registers */ |
| mon960_cmds.register_pattern = "\\(\\w+\\)=\\([0-9a-fA-F]+\\)"; /* register_pattern */ |
| mon960_cmds.supply_register = NULL; /* supply_register */ |
| #ifdef USE_GENERIC_LOAD |
| mon960_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */ |
| mon960_cmds.load = NULL; /* download command */ |
| mon960_cmds.loadresp = NULL; /* load response */ |
| #else |
| mon960_cmds.load_routine = mon960_load; /* load_routine (defaults to SRECs) */ |
| mon960_cmds.load = "do\n\r"; /* download command */ |
| mon960_cmds.loadresp = "Downloading\n\r"; /* load response */ |
| #endif |
| mon960_cmds.prompt = "=>"; /* monitor command prompt */ |
| mon960_cmds.line_term = "\n\r"; /* end-of-command delimitor */ |
| mon960_cmds.cmd_end = NULL; /* optional command terminator */ |
| mon960_cmds.target = &mon960_ops; /* target operations */ |
| mon960_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */ |
| mon960_cmds.regnames = mon960_regnames; /* registers names */ |
| mon960_cmds.magic = MONITOR_OPS_MAGIC; /* magic */ |
| }; |
| |
| static void |
| mon960_open (args, from_tty) |
| char *args; |
| int from_tty; |
| { |
| char buf[64]; |
| |
| monitor_open (args, &mon960_cmds, from_tty); |
| |
| /* Attempt to fetch the value of the first floating point register (fp0). |
| If the monitor returns a string containing the word "Bad" we'll assume |
| this processor has no floating point registers, and nullify the |
| regnames entries that refer to FP registers. */ |
| |
| monitor_printf (mon960_cmds.getreg.cmd, full_regnames[FP0_REGNUM]); /* di fp0 */ |
| if (monitor_expect_prompt (buf, sizeof (buf)) != -1) |
| if (strstr (buf, "Bad") != NULL) |
| { |
| int i; |
| |
| for (i = FP0_REGNUM; i < FP0_REGNUM + 4; i++) |
| mon960_regnames[i] = NULL; |
| } |
| } |
| |
| void |
| _initialize_mon960 () |
| { |
| memcpy (mon960_regnames, full_regnames, sizeof (full_regnames)); |
| |
| init_mon960_cmds (); |
| |
| init_monitor_ops (&mon960_ops); |
| |
| mon960_ops.to_shortname = "mon960"; /* for the target command */ |
| mon960_ops.to_longname = "Intel 960 MON960 monitor"; |
| #ifdef USE_GENERIC_LOAD |
| mon960_ops.to_load = mon960_load_gen; /* FIXME - should go back and try "do" */ |
| #endif |
| /* use SW breaks; target only supports 2 HW breakpoints */ |
| mon960_ops.to_insert_breakpoint = memory_insert_breakpoint; |
| mon960_ops.to_remove_breakpoint = memory_remove_breakpoint; |
| |
| mon960_ops.to_doc = |
| "Use an Intel 960 board running the MON960 debug monitor.\n\ |
| Specify the serial device it is connected to (e.g. /dev/ttya)."; |
| |
| mon960_ops.to_open = mon960_open; |
| add_target (&mon960_ops); |
| } |