--- /dev/null
+/* Remote debugging interface to m32r ROM monitor for GDB, the GNU debugger.
+ Copyright 1996 Free Software Foundation, Inc.
+
+ Adapted by Michael Snyder 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. */
+
+/* This module defines communication with the Mitsubishi m32r monitor */
+
+#include "defs.h"
+#include "gdbcore.h"
+#include "target.h"
+#include "monitor.h"
+#include "serial.h"
+#include "symtab.h"
+#include "command.h"
+#include "gdbcmd.h"
+#include "symfile.h" /* for generic load */
+#include <time.h> /* for time_t */
+#include "gdb_string.h"
+
+/*
+ * All this stuff just to get my host computer's IP address!
+ */
+#include <netdb.h> /* for hostent */
+#include <netinet/in.h> /* for struct in_addr */
+#if 1
+#include <arpa/inet.h> /* for inet_ntoa */
+#endif
+
+static char *board_addr; /* user-settable IP address for M32R-EVA */
+static char *server_addr; /* user-settable IP address for gdb host */
+static char *download_path; /* user-settable path for SREC files */
+
+
+/*
+ * Function: m32r_load_1 (helper function)
+ */
+
+static void
+m32r_load_section (abfd, s, data_count)
+ bfd *abfd;
+ asection *s;
+ unsigned int *data_count;
+{
+ if (s->flags & SEC_LOAD)
+ {
+ bfd_size_type section_size = bfd_section_size (abfd, s);
+ bfd_vma section_base = bfd_section_vma (abfd, s);
+ unsigned int buffer, i;
+
+ *data_count += section_size;
+
+ printf_filtered ("Loading section %s, size 0x%lx vma ",
+ bfd_section_name (abfd, s), section_size);
+ print_address_numeric (section_base, 1, gdb_stdout);
+ printf_filtered ("\n");
+ gdb_flush (gdb_stdout);
+ monitor_printf ("%x mw\r" , section_base);
+ for (i = 0; i < section_size; i += 4)
+ {
+ QUIT;
+ monitor_expect (" -> ", NULL, 0);
+ bfd_get_section_contents (abfd, s, (char *) &buffer, i, 4);
+ monitor_printf ("%x\n", buffer);
+ }
+ monitor_expect (" -> ", NULL, 0);
+ monitor_printf ("q\n");
+ monitor_expect_prompt (NULL, 0);
+ }
+}
+
+static int
+m32r_load_1 (dummy)
+ void *dummy;
+{
+ int data_count = 0;
+
+ bfd_map_over_sections ((bfd *) dummy, m32r_load_section, &data_count);
+ return data_count;
+}
+
+/*
+ * Function: m32r_load (an alternate way to load)
+ */
+
+static void
+m32r_load (filename, from_tty)
+ char *filename;
+ int from_tty;
+{
+ extern int inferior_pid;
+ bfd *abfd;
+ asection *s;
+ unsigned int i, data_count = 0;
+ time_t start_time, end_time; /* for timing of download */
+
+ if (filename == NULL || filename[0] == 0)
+ filename = get_exec_file (1);
+
+ abfd = bfd_openr (filename, 0);
+ if (!abfd)
+ error ("Unable to open file %s\n", filename);
+ if (bfd_check_format (abfd, bfd_object) == 0)
+ error ("File is not an object file\n");
+ start_time = time (NULL);
+#if 0
+ for (s = abfd->sections; s; s = s->next)
+ if (s->flags & SEC_LOAD)
+ {
+ bfd_size_type section_size = bfd_section_size (abfd, s);
+ bfd_vma section_base = bfd_section_vma (abfd, s);
+ unsigned int buffer;
+
+ data_count += section_size;
+
+ printf_filtered ("Loading section %s, size 0x%lx vma ",
+ bfd_section_name (abfd, s), section_size);
+ print_address_numeric (section_base, 1, gdb_stdout);
+ printf_filtered ("\n");
+ gdb_flush (gdb_stdout);
+ monitor_printf ("%x mw\r" , section_base);
+ for (i = 0; i < section_size; i += 4)
+ {
+ monitor_expect (" -> ", NULL, 0);
+ bfd_get_section_contents (abfd, s, (char *) &buffer, i, 4);
+ monitor_printf ("%x\n", buffer);
+ }
+ monitor_expect (" -> ", NULL, 0);
+ monitor_printf ("q\n");
+ monitor_expect_prompt (NULL, 0);
+ }
+#else
+ if (!(catch_errors (m32r_load_1, abfd, "Load aborted!\n", RETURN_MASK_ALL)))
+ {
+ monitor_printf ("q\n");
+ return;
+ }
+#endif
+ end_time = time (NULL);
+ printf_filtered ("Start address 0x%lx\n", bfd_get_start_address (abfd));
+ report_transfer_performance (data_count, start_time, end_time);
+
+ /* 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 is necessary because many things were based on the PC at the
+ time that we attached to the monitor, which is no longer valid
+ now that we have loaded new code (and just changed the PC).
+ Another way to do this might be to call normal_stop, except that
+ the stack may not be valid, and things would get horribly
+ confused... */
+
+ clear_symtab_users ();
+}
+
+static void
+m32r_load_gen (filename, from_tty)
+ char *filename;
+ int from_tty;
+{
+ generic_load (filename, from_tty);
+}
+
+static void m32r_open PARAMS ((char *args, int from_tty));
+
+/* 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 *m32r_regnames[] =
+{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+ "psw", "cbr", "spi", "spu", "bpc", "pc", "accl", "acch",
+};
+
+static void
+m32r_supply_register (regname, regnamelen, val, vallen)
+ char *regname;
+ int regnamelen;
+ char *val;
+ int vallen;
+{
+ int regno;
+ int num_regs = sizeof(m32r_regnames) / sizeof(m32r_regnames[0]);
+
+ for (regno = 0; regno < num_regs; regno++)
+ if (strncmp(regname, m32r_regnames[regno], regnamelen) == 0)
+ break;
+
+ if (regno >= num_regs)
+ return; /* no match */
+
+ if (regno == ACCL_REGNUM)
+ { /* special handling for 64-bit acc reg */
+ monitor_supply_register (ACCH_REGNUM, val);
+ if (val = (char *) strchr(val, ':')) /* skip past ':' to get 2nd word */
+ monitor_supply_register (ACCL_REGNUM, val + 1);
+ }
+ else
+ {
+ monitor_supply_register (regno, val);
+ if (regno == PSW_REGNUM)
+ {
+ unsigned long psw = strtoul (val, NULL, 16);
+ char *zero = "00000000", *one = "00000001";
+
+#ifdef SM_REGNUM
+ /* Stack mode bit */
+ monitor_supply_register (SM_REGNUM, (psw & 0x80) ? one : zero);
+#endif
+#ifdef BSM_REGNUM
+ /* Backup stack mode bit */
+ monitor_supply_register (BSM_REGNUM, (psw & 0x8000) ? one : zero);
+#endif
+#ifdef IE_REGNUM
+ /* Interrupt enable bit */
+ monitor_supply_register (IE_REGNUM, (psw & 0x40) ? one : zero);
+#endif
+#ifdef BIE_REGNUM
+ /* Backup interrupt enable bit */
+ monitor_supply_register (BIE_REGNUM, (psw & 0x4000) ? one : zero);
+#endif
+#ifdef COND_REGNUM
+ /* Condition bit (carry etc.) */
+ monitor_supply_register (COND_REGNUM, (psw & 0x1) ? one : zero);
+#endif
+#ifdef CBR_REGNUM
+ monitor_supply_register (CBR_REGNUM, (psw & 0x1) ? one : zero);
+#endif
+#ifdef BPC_REGNUM
+ monitor_supply_register (BPC_REGNUM, zero); /* KLUDGE: (???????) */
+#endif
+#ifdef BCARRY_REGNUM
+ monitor_supply_register (BCARRY_REGNUM, zero); /* KLUDGE: (??????) */
+#endif
+ }
+
+ if (regno == SPI_REGNUM || regno == SPU_REGNUM)
+ { /* special handling for stack pointer (spu or spi) */
+ unsigned long stackmode = read_register (PSW_REGNUM) & 0x80;
+
+ if (regno == SPI_REGNUM && !stackmode) /* SP == SPI */
+ monitor_supply_register (SP_REGNUM, val);
+ else if (regno == SPU_REGNUM && stackmode) /* SP == SPU */
+ monitor_supply_register (SP_REGNUM, val);
+ }
+ }
+}
+
+static struct target_ops m32r_ops;
+
+static char *m32r_inits[] = {"\r", NULL};
+
+static struct monitor_ops m32r_cmds =
+{
+ MO_CLR_BREAK_USES_ADDR | MO_REGISTER_VALUE_FIRST,
+ m32r_inits, /* Init strings */
+ "go\r", /* continue command */
+ "step\r", /* single step */
+ NULL, /* interrupt command */
+ "%x +bp\r", /* set a breakpoint */
+ "%x -bp\r", /* clear a breakpoint */
+ "bpoff\r", /* clear all breakpoints */
+ "%x %x %x fill\r", /* fill (start length val) */
+ {
+ "%x 1 %x fill\r", /* setmem.cmdb (addr, value) */
+ "%x 1 %x fillh\r", /* setmem.cmdw (addr, value) */
+ "%x 1 %x fillw\r", /* setmem.cmdl (addr, value) */
+ NULL, /* setmem.cmdll (addr, value) */
+ NULL, /* setmem.resp_delim */
+ NULL, /* setmem.term */
+ NULL /* setmem.term_cmd */
+ },
+ {
+ "%x %x dump\r", /* getmem.cmdb (addr, len) */
+ NULL, /* getmem.cmdw (addr, len) */
+ NULL, /* getmem.cmdl (addr, len) */
+ NULL, /* getmem.cmdll (addr, len) */
+ ": ", /* getmem.resp_delim */
+ NULL, /* getmem.term */
+ NULL /* getmem.term_cmd */
+ },
+ {
+ "%x to %%%s\r", /* setreg.cmd (name, value) */
+ NULL, /* setreg.resp_delim */
+ NULL, /* setreg.term */
+ NULL /* setreg.term_cmd */
+ },
+ {
+ NULL, /* getreg.cmd (name) */
+ NULL, /* getreg.resp_delim */
+ NULL, /* getreg.term */
+ NULL /* getreg.term_cmd */
+ },
+ ".reg\r", /* dump_registers */
+ "\\(\\w+\\) += \\([0-9a-fA-F]+\\b\\)", /* register_pattern */
+ m32r_supply_register, /* supply_register */
+ NULL, /* load_routine (defaults to SRECs) */
+ NULL, /* download command */
+ NULL, /* load response */
+ "ok ", /* monitor command prompt */
+ "\r", /* end-of-line terminator */
+ NULL, /* optional command terminator */
+ &m32r_ops, /* target operations */
+ SERIAL_1_STOPBITS, /* number of stop bits */
+ m32r_regnames, /* registers names */
+ MONITOR_OPS_MAGIC /* magic */
+ };
+
+static void
+m32r_open(args, from_tty)
+ char *args;
+ int from_tty;
+{
+ monitor_open (args, &m32r_cmds, from_tty);
+}
+
+/* Function: set_board_address
+ Tell the BootOne monitor what it's ethernet IP address is. */
+
+static void
+m32r_set_board_address (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ int resp_len;
+ char buf[1024];
+
+ if (args && *args)
+ {
+ monitor_printf ("ulip %s\n", args);
+ resp_len = monitor_expect_prompt (buf, sizeof(buf));
+ /* now parse the result for success */
+ }
+ else
+ error ("Requires argument (IP address for M32R-EVA board)");
+}
+
+/* Function: set_server_address
+ Tell the BootOne monitor what gdb's ethernet IP address is. */
+
+static void
+m32r_set_server_address (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ int resp_len;
+ char buf[1024];
+
+ if (args && *args)
+ {
+ monitor_printf ("uhip %s\n", args);
+ resp_len = monitor_expect_prompt (buf, sizeof(buf));
+ /* now parse the result for success */
+ }
+ else
+ error ("Requires argument (IP address of GDB's host computer)");
+}
+
+/* Function: set_download_path
+ Tell the BootOne monitor the default path for downloadable SREC files. */
+
+static void
+m32r_set_download_path (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ int resp_len;
+ char buf[1024];
+
+ if (args && *args)
+ {
+ monitor_printf ("up %s\n", args);
+ resp_len = monitor_expect_prompt (buf, sizeof(buf));
+ /* now parse the result for success */
+ }
+ else
+ error ("Requires argument (default path for downloadable SREC files)");
+}
+
+static void
+m32r_upload_command (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ bfd *abfd;
+ asection *s;
+ time_t start_time, end_time; /* for timing of download */
+ extern int inferior_pid;
+ int resp_len, data_count = 0;
+ char buf[1024];
+ struct hostent *hostent;
+ struct in_addr inet_addr;
+
+ /* first check to see if there's an ethernet port! */
+ monitor_printf ("ust\r");
+ resp_len = monitor_expect_prompt (buf, sizeof(buf));
+ if (!strchr (buf, ':'))
+ error ("No ethernet connection!");
+
+ if (board_addr == 0)
+ {
+ /* scan second colon in the output from the "ust" command */
+ char * myIPaddress = strchr (strchr (buf, ':') + 1, ':') + 1;
+
+ while (isspace(*myIPaddress))
+ myIPaddress++;
+
+ if (!strncmp (myIPaddress, "0.0.", 4)) /* empty */
+ error ("Please use 'set board-address' to set the M32R-EVA board's IP address.");
+ if (strchr (myIPaddress, '('))
+ *(strchr (myIPaddress, '(')) = '\0'; /* delete trailing junk */
+ board_addr = strsave (myIPaddress);
+ }
+ if (server_addr == 0)
+ {
+ buf[0] = 0;
+ gethostname (buf, sizeof(buf));
+ if (buf[0] != 0)
+ hostent = gethostbyname (buf);
+ if (hostent != 0)
+ {
+#if 1
+ memcpy (&inet_addr.s_addr, hostent->h_addr,
+ sizeof(inet_addr.s_addr));
+ server_addr = (char *) inet_ntoa (inet_addr);
+#else
+ server_addr = (char *) inet_ntoa (hostent->h_addr);
+#endif
+ }
+ if (server_addr == 0) /* failed? */
+ error ("Need to know gdb host computer's IP address (use 'set server-address')");
+ }
+
+ if (args == 0 || args[0] == 0) /* no args: upload the current file */
+ args = get_exec_file (1);
+
+ if (args[0] != '/' && download_path == 0)
+ if (current_directory)
+ download_path = strsave (current_directory);
+ else
+ error ("Need to know default download path (use 'set download-path')");
+
+ start_time = time (NULL);
+ monitor_printf ("uhip %s\r", server_addr);
+ resp_len = monitor_expect_prompt (buf, sizeof(buf)); /* parse result? */
+ monitor_printf ("ulip %s\r", board_addr);
+ resp_len = monitor_expect_prompt (buf, sizeof(buf)); /* parse result? */
+ if (args[0] != '/')
+ monitor_printf ("up %s\r", download_path); /* use default path */
+ else
+ monitor_printf ("up\r"); /* rooted filename/path */
+ resp_len = monitor_expect_prompt (buf, sizeof(buf)); /* parse result? */
+
+ if (strrchr (args, '.') && !strcmp (strrchr (args, '.'), ".srec"))
+ monitor_printf ("ul %s\r", args);
+ else /* add ".srec" suffix */
+ monitor_printf ("ul %s.srec\r", args);
+ resp_len = monitor_expect_prompt (buf, sizeof(buf)); /* parse result? */
+
+ if (buf[0] == 0 || strstr(buf, "complete") == 0)
+ error("Upload file not found: %s.srec\nCheck IP addresses and download path.", args);
+ else
+ printf_filtered (" -- Ethernet load complete.\n");
+
+ end_time = time (NULL);
+ if (abfd = bfd_openr (args, 0))
+ { /* Download is done -- print section statistics */
+ if (bfd_check_format (abfd, bfd_object) == 0)
+ {
+ printf_filtered ("File is not an object file\n");
+ }
+ for (s = abfd->sections; s; s = s->next)
+ if (s->flags & SEC_LOAD)
+ {
+ bfd_size_type section_size = bfd_section_size (abfd, s);
+ bfd_vma section_base = bfd_section_vma (abfd, s);
+ unsigned int buffer;
+
+ data_count += section_size;
+
+ printf_filtered ("Loading section %s, size 0x%lx vma ",
+ bfd_section_name (abfd, s), section_size);
+ print_address_numeric (section_base, 1, gdb_stdout);
+ printf_filtered ("\n");
+ gdb_flush (gdb_stdout);
+ }
+ /* Finally, make the PC point at the start address */
+ write_pc (bfd_get_start_address (abfd));
+ report_transfer_performance (data_count, start_time, end_time);
+ printf_filtered ("Start address 0x%lx\n", bfd_get_start_address (abfd));
+ }
+ inferior_pid = 0; /* No process now */
+
+ /* This is necessary because many things were based on the PC at the
+ time that we attached to the monitor, which is no longer valid
+ now that we have loaded new code (and just changed the PC).
+ Another way to do this might be to call normal_stop, except that
+ the stack may not be valid, and things would get horribly
+ confused... */
+
+ clear_symtab_users ();
+}
+
+void
+_initialize_m32r_rom ()
+{
+ init_monitor_ops (&m32r_ops);
+
+ m32r_ops.to_shortname = "m32r";
+ m32r_ops.to_longname = "m32r monitor";
+ m32r_ops.to_load = m32r_load_gen; /* monitor lacks a download command */
+ m32r_ops.to_doc = "Debug via the m32r monitor.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).";
+ m32r_ops.to_open = m32r_open;
+
+ add_show_from_set
+ (add_set_cmd ("download-path", class_obscure, var_string,
+ (char *) &download_path,
+ "Set the default path for downloadable SREC files.",
+ &setlist),
+ &showlist);
+
+ add_show_from_set
+ (add_set_cmd ("board-address", class_obscure, var_string,
+ (char *) &board_addr,
+ "Set IP address for M32R-EVA target board.",
+ &setlist),
+ &showlist);
+
+ add_show_from_set
+ (add_set_cmd ("server-address", class_obscure, var_string,
+ (char *) &server_addr,
+ "Set IP address for download server (GDB's host computer).",
+ &setlist),
+ &showlist);
+
+ add_com ("upload", class_obscure, m32r_upload_command,
+ "Upload the srec file via the monitor's Ethernet upload capability.");
+
+ add_com ("tload", class_obscure, m32r_load, "test upload command.");
+
+ add_target (&m32r_ops);
+}
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