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Diffstat (limited to 'gdb/sh3-rom.c')
| -rw-r--r-- | gdb/sh3-rom.c | 392 |
1 files changed, 392 insertions, 0 deletions
diff --git a/gdb/sh3-rom.c b/gdb/sh3-rom.c new file mode 100644 index 0000000..ab4aa69 --- /dev/null +++ b/gdb/sh3-rom.c @@ -0,0 +1,392 @@ +/* Remote target glue for the Hitachi SH-3 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" + +static serial_t parallel; +static int parallel_in_use; + +static void sh3_open PARAMS ((char *args, int from_tty)); + +static void +sh3_supply_register (regname, regnamelen, val, vallen) + char *regname; + int regnamelen; + char *val; + int vallen; +{ + int numregs; + int regno; + + numregs = 1; + regno = -1; + + if (regnamelen == 2) + { + switch (regname[0]) + { + case 'S': + if (regname[1] == 'R') + regno = SR_REGNUM; + break; + case 'P': + if (regname[1] == 'C') + regno = PC_REGNUM; + else if (regname[1] == 'R') + regno = PR_REGNUM; + break; + } + } + else if (regnamelen == 3) + { + switch (regname[0]) + { + case 'G': + case 'V': + if (regname[1] == 'B' && regname[2] == 'R') + if (regname[0] == 'G') + regno = VBR_REGNUM; + else + regno = GBR_REGNUM; + break; + case 'S': + if (regname[1] == 'S' && regname[2] == 'R') + regno = SSR_REGNUM; + else if (regname[1] == 'P' && regname[2] == 'C') + regno = SPC_REGNUM; + break; + } + } + else if (regnamelen == 4) + { + switch (regname[0]) + { + case 'M': + if (regname[1] == 'A' && regname[2] == 'C') + if (regname[3] == 'H') + regno = MACH_REGNUM; + else if (regname[3] == 'L') + regno = MACL_REGNUM; + break; + case 'R': + if (regname[1] == '0' && regname[2] == '-' && regname[3] == '7') + { + regno = R0_REGNUM; + numregs = 8; + } + } + } + else if (regnamelen == 5) + { + if (regname[1] == '8' && regname[2] == '-' && regname[3] == '1' + && regname[4] =='5') + { + regno = R0_REGNUM + 8; + numregs = 8; + } + } + else if (regnamelen == 17) + { + } + + if (regno >= 0) + while (numregs-- > 0) + val = monitor_supply_register (regno++, val); +} + +static void +sh3_load (desc, file, hashmark) + serial_t desc; + char *file; + int hashmark; +{ + if (parallel_in_use) + { + monitor_printf("pl;s\r"); + load_srec (parallel, file, 0, 80, SREC_ALL, hashmark, NULL); + monitor_expect_prompt (NULL, 0); + } + else + { + monitor_printf ("il;s:x\r"); + monitor_expect ("\005", NULL, 0); /* Look for ENQ */ + SERIAL_WRITE (desc, "\006", 1); /* Send ACK */ + monitor_expect ("LO x\r", NULL, 0); /* Look for filename */ + + load_srec (desc, file, 0, 80, SREC_ALL, hashmark, NULL); + + monitor_expect ("\005", NULL, 0); /* Look for ENQ */ + SERIAL_WRITE (desc, "\006", 1); /* Send ACK */ + monitor_expect_prompt (NULL, 0); + } +} + +/* 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". */ + +static char *sh3_regnames[NUM_REGS] = { + "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", + "R8", "R9", "R10", "R11","R12", "R13", "R14", "R15", + "PC", "PR", "GBR", "VBR","MACH","MACL", "SR", + NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "SSR", "SPC", + "R0_BANK0", "R1_BANK0", "R2_BANK0", "R3_BANK0", + "R4_BANK0", "R5_BANK0", "R6_BANK0", "R7_BANK0", + "R0_BANK1", "R1_BANK1", "R2_BANK1", "R3_BANK1", + "R4_BANK1", "R5_BANK1", "R6_BANK1", "R7_BANK1" +}; + +static char *sh3e_regnames[NUM_REGS] = { + "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", + "R8", "R9", "R10", "R11","R12", "R13", "R14", "R15", + "PC", "PR", "GBR", "VBR","MACH","MACL", "SR", + "FPUL", "FPSCR", + "FR0", "FR1", "FR2", "FR3", "FR4", "FR5", "FR6", "FR7", + "FR8", "FR9", "FR10", "FR11", "FR12", "FR13", "FR14", "FR15", + "SSR","SPC", + "R0_BANK0", "R1_BANK0", "R2_BANK0", "R3_BANK0", + "R4_BANK0", "R5_BANK0", "R6_BANK0", "R7_BANK0", + "R0_BANK1", "R1_BANK1", "R2_BANK1", "R3_BANK1", + "R4_BANK1", "R5_BANK1", "R6_BANK1", "R7_BANK1" +}; + +/* 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. */ + +static struct target_ops sh3_ops, sh3e_ops; + +static char *sh3_inits[] = {"\003", NULL}; /* Exits sub-command mode & download cmds */ + +static struct monitor_ops sh3_cmds ; + +static void +init_sh3_cmds(void) +{ + sh3_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_GETMEM_READ_SINGLE ; /* flags */ + sh3_cmds.init = sh3_inits; /* monitor init string */ + sh3_cmds.cont = "g\r"; /* continue command */ + sh3_cmds.step = "s\r"; /* single step */ + sh3_cmds.stop = "\003"; /* Interrupt program */ + sh3_cmds.set_break = "b %x\r"; /* set a breakpoint */ + sh3_cmds.clr_break = "b -%x\r"; /* clear a breakpoint */ + sh3_cmds.clr_all_break = "b -\r"; /* clear all breakpoints */ + sh3_cmds.fill = "f %x @%x %x\r"; /* fill (start len val) */ + sh3_cmds.setmem.cmdb = "m %x %x\r"; /* setmem.cmdb (addr, value) */ + sh3_cmds.setmem.cmdw = "m %x %x;w\r"; /* setmem.cmdw (addr, value) */ + sh3_cmds.setmem.cmdl = "m %x %x;l\r"; /* setmem.cmdl (addr, value) */ + sh3_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */ + sh3_cmds.setmem.resp_delim = NULL; /* setreg.resp_delim */ + sh3_cmds.setmem.term = NULL; /* setreg.term */ + sh3_cmds.setmem.term_cmd = NULL; /* setreg.term_cmd */ + sh3_cmds.getmem.cmdb = "m %x\r"; /* getmem.cmdb (addr, len) */ + sh3_cmds.getmem.cmdw = "m %x;w\r"; /* getmem.cmdw (addr, len) */ + sh3_cmds.getmem.cmdl = "m %x;l\r"; /* getmem.cmdl (addr, len) */ + sh3_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */ + sh3_cmds.getmem.resp_delim = "^ [0-9A-F]+ "; /* getmem.resp_delim */ + sh3_cmds.getmem.term = "? "; /* getmem.term */ + sh3_cmds.getmem.term_cmd = ".\r"; /* getmem.term_cmd */ + sh3_cmds.setreg.cmd = ".%s %x\r"; /* setreg.cmd (name, value) */ + sh3_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */ + sh3_cmds.setreg.term = NULL; /* setreg.term */ + sh3_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */ + sh3_cmds.getreg.cmd = ".%s\r"; /* getreg.cmd (name) */ + sh3_cmds.getreg.resp_delim = "="; /* getreg.resp_delim */ + sh3_cmds.getreg.term = "? "; /* getreg.term */ + sh3_cmds.getreg.term_cmd = ".\r" ; /* getreg.term_cmd */ + sh3_cmds.dump_registers = "r\r"; /* dump_registers */ + sh3_cmds.register_pattern = "\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)"; + sh3_cmds.supply_register = sh3_supply_register ; /* supply_register */ + sh3_cmds.load_routine = sh3_load; /* load_routine */ + sh3_cmds.load = NULL; /* download command */ + sh3_cmds.loadresp = NULL; /* Load response */ + sh3_cmds.prompt = "\n:"; /* monitor command prompt */ + sh3_cmds.line_term = "\r"; /* end-of-line terminator */ + sh3_cmds.cmd_end = ".\r"; /* optional command terminator */ + sh3_cmds.target = &sh3_ops; /* target operations */ + sh3_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */ + sh3_cmds.regnames = sh3_regnames; /* registers names */ + sh3_cmds.magic = MONITOR_OPS_MAGIC ; /* magic */ +} /* init_sh3_cmds */ + +/* This monitor structure is identical except for a couple slots, so + we will fill it in from the base structure when needed. */ + +static struct monitor_ops sh3e_cmds; + +static void +sh3_open (args, from_tty) + char *args; + int from_tty; +{ + char *serial_port_name = args; + char *parallel_port_name = 0; + + if (args) + { + char *cursor = serial_port_name = strsave (args); + + while (*cursor && *cursor != ' ') + cursor++; + + if (*cursor) + *cursor++ = 0; + + while (*cursor == ' ') + cursor++; + + if (*cursor) + parallel_port_name = cursor; + } + + monitor_open (serial_port_name, &sh3_cmds, from_tty); + + if (parallel_port_name) + { + parallel = SERIAL_OPEN (parallel_port_name); + + if (!parallel) + perror_with_name ("Unable to open parallel port."); + + parallel_in_use = 1; + } + + /* If we connected successfully, we know the processor is an SH3. */ + set_architecture_from_arch_mach (bfd_arch_sh, bfd_mach_sh3); +} + + +static void +sh3e_open (args, from_tty) + char *args; + int from_tty; +{ + char *serial_port_name = args; + char *parallel_port_name = 0; + + if (args) + { + char *cursor = serial_port_name = strsave (args); + + while (*cursor && *cursor != ' ') + cursor++; + + if (*cursor) + *cursor++ = 0; + + while (*cursor == ' ') + cursor++; + + if (*cursor) + parallel_port_name = cursor; + } + + /* Set up the SH-3E monitor commands structure. */ + + memcpy (&sh3e_cmds, &sh3_cmds, sizeof (struct monitor_ops)); + + sh3e_cmds.target = &sh3e_ops; + sh3e_cmds.regnames = sh3e_regnames; + + monitor_open (serial_port_name, &sh3e_cmds, from_tty); + + if (parallel_port_name) + { + parallel = SERIAL_OPEN (parallel_port_name); + + if (!parallel) + perror_with_name ("Unable to open parallel port."); + + parallel_in_use = 1; + } + + /* If we connected successfully, we know the processor is an SH3E. */ + set_architecture_from_arch_mach (bfd_arch_sh, bfd_mach_sh3); +} + +static void +sh3_close (quitting) + int quitting; +{ + monitor_close (quitting); + if (parallel_in_use) { + SERIAL_CLOSE (parallel); + parallel_in_use = 0; + } +} + +void +_initialize_sh3_rom () +{ + init_sh3_cmds() ; + init_monitor_ops (&sh3_ops); + + sh3_ops.to_shortname = "sh3"; + sh3_ops.to_longname = "Hitachi SH-3 rom monitor"; + + sh3_ops.to_doc = +#ifdef _WINDOWS + /* On windows we can talk through the parallel port too. */ + "Debug on a Hitachi eval board running the SH-3 rom monitor.\n" + "Specify the serial device it is connected to (e.g. com2).\n" + "If you want to use the parallel port to download to it, specify that\n" + "as the second argument. (e.g. lpt1)"; +#else + "Debug on a Hitachi eval board running the SH-3 rom monitor.\n\ +Specify the serial device it is connected to (e.g. /dev/ttya)."; +#endif + + sh3_ops.to_open = sh3_open; + sh3_ops.to_close = sh3_close; + + add_target (&sh3_ops); + + /* Setup the SH3e, which has float registers. */ + + init_monitor_ops (&sh3e_ops); + + sh3e_ops.to_shortname = "sh3e"; + sh3e_ops.to_longname = "Hitachi SH-3E rom monitor"; + + sh3e_ops.to_doc = +#ifdef _WINDOWS + /* On windows we can talk through the parallel port too. */ + "Debug on a Hitachi eval board running the SH-3E rom monitor.\n" + "Specify the serial device it is connected to (e.g. com2).\n" + "If you want to use the parallel port to download to it, specify that\n" + "as the second argument. (e.g. lpt1)"; +#else + "Debug on a Hitachi eval board running the SH-3E rom monitor.\n\ +Specify the serial device it is connected to (e.g. /dev/ttya)."; +#endif + + sh3e_ops.to_open = sh3e_open; + sh3e_ops.to_close = sh3_close; + + add_target (&sh3e_ops); +} |