remote-hms.c
remote-mips.c
remote-mm.c
-remote-monitor.c
+remote-mon.c
remote-nindy.c
remote-sim.c
remote-st.c
+Fri Aug 27 09:30:40 1993 Jim Kingdon (kingdon@deneb.cygnus.com)
+
+ * Rename files for 14-character limits:
+ gdbserver/remote-gutils.c -> gdbserver/utils.c
+ gdbserver/remote-inflow.c -> gdbserver/low-lynx.c
+ gdbserver/remote-inflow-sparc.c -> gdbserver/low-sparc.c
+ gdbserver/remote-server.c -> gdbserver/server.c
+ remote-monitor.c -> remote-mon.c
+ * Makefile.in, gdbserver/Makefile.in, config/m68k/monitor.mt:
+ Change accordingly.
+ * gdbserver/Makefile.in: Remove more junk inherited from gdb Makefile.
+
Thu Aug 26 14:32:51 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
* infcmd.c, inferior.h (run_stack_dummy): If we stop somewhere
nindy-share/ttyflush.c nindy-tdep.c \
ns32k-pinsn.c paread.c procfs.c pyr-pinsn.c pyr-tdep.c pyr-xdep.c \
remote-adapt.c remote-bug.c remote-eb.c remote-es.c remote-hms.c remote-mips.c \
- remote-mm.c remote-monitor.c remote-nindy.c remote-sim.c remote-st.c \
+ remote-mm.c remote-mon.c remote-nindy.c remote-sim.c remote-st.c \
remote-udi.c remote-vx.c remote-z8k.c rs6000-nat.c rs6000-pinsn.c \
rs6000-tdep.c ser-go32.c ser-tcp.c sh-tdep.c solib.c sparc-nat.c \
sparc-pinsn.c sparc-tdep.c sun3-nat.c sun386-nat.c symm-tdep.c \
remote-mm.o: remote-mm.c $(bfd_h) $(wait_h) $(defs_h) $(inferior_h) \
minimon.h target.h terminal.h
-remote-monitor.o: remote-monitor.c $(wait_h) $(command_h) $(defs_h) \
+remote-mon.o: remote-mon.c $(wait_h) $(command_h) $(defs_h) \
$(gdbcore_h) monitor.h serial.h target.h
remote-nindy.o: remote-nindy.c $(ieee-float_h) $(wait_h) $(command_h) \
Makefile.in
README
configure.in
-remote-gutils.c
-remote-inflow.c
-remote-server.c
+low-lynx.c
+low-sparc.c
remote-utils.c
+server.c
server.h
+utils.c
Things-to-lose:
-
-remote-inflow-sparc.c
-
Do-last:
# End of file.
--- /dev/null
+#Copyright 1989, 1990, 1991, 1992, 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+prefix = /usr/local
+
+program_transform_name =
+exec_prefix = $(prefix)
+bindir = $(exec_prefix)/bin
+libdir = $(exec_prefix)/lib
+tooldir = $(libdir)/$(target_alias)
+
+datadir = $(prefix)/lib
+mandir = $(prefix)/man
+man1dir = $(mandir)/man1
+man2dir = $(mandir)/man2
+man3dir = $(mandir)/man3
+man4dir = $(mandir)/man4
+man5dir = $(mandir)/man5
+man6dir = $(mandir)/man6
+man7dir = $(mandir)/man7
+man8dir = $(mandir)/man8
+man9dir = $(mandir)/man9
+infodir = $(prefix)/info
+includedir = $(prefix)/include
+docdir = $(datadir)/doc
+
+SHELL = /bin/sh
+
+INSTALL = install -c
+INSTALL_PROGRAM = $(INSTALL)
+INSTALL_DATA = $(INSTALL)
+
+AR = ar
+AR_FLAGS = qv
+RANLIB = ranlib
+
+# Flags that describe where you can find the termcap library.
+# This can be overridden in the host Makefile fragment file.
+TERMCAP = -ltermcap
+
+# System V: If you compile gdb with a compiler which uses the coff
+# encapsulation feature (this is a function of the compiler used, NOT
+# of the m-?.h file selected by config.gdb), you must make sure that
+# the GNU nm is the one that is used by munch.
+
+# If you are compiling with GCC, make sure that either 1) You use the
+# -traditional flag, or 2) You have the fixed include files where GCC
+# can reach them. Otherwise the ioctl calls in inflow.c
+# will be incorrectly compiled. The "fixincludes" script in the gcc
+# distribution will fix your include files up.
+#CC=cc
+#CC=gcc -traditional
+GCC=gcc
+
+# Directory containing source files. Don't clean up the spacing,
+# this exact string is matched for by the "configure" script.
+srcdir = .
+
+# It is also possible that you will need to add -I/usr/include/sys to the
+# CFLAGS section if your system doesn't have fcntl.h in /usr/include (which
+# is where it should be according to Posix).
+
+# If you use bison instead of yacc, it needs to include the "-y" argument.
+#BISON=bison -y
+BISON=yacc
+YACC=$(BISON)
+
+# where to find texinfo; GDB dist should include a recent one
+TEXIDIR=${srcdir}/../texinfo
+
+# where to find makeinfo, preferably one designed for texinfo-2
+MAKEINFO=makeinfo
+
+# Set this up with gcc if you have gnu ld and the loader will print out
+# line numbers for undefinded refs.
+#CC-LD=gcc -static
+CC-LD=${CC}
+
+# Where is the "include" directory? Traditionally ../include or ./include
+INCLUDE_DIR = ${srcdir}/../../include
+INCLUDE_DEP = $$(INCLUDE_DIR)
+
+# Where is the source dir for the MMALLOC library? Traditionally ../mmalloc
+# or ./mmalloc (When we want the binary library built from it, we use
+# ${MMALLOC_DIR}${subdir}.)
+# Note that mmalloc can still be used on systems without mmap().
+# To use your system malloc, comment out the following defines.
+MMALLOC_DIR = ${srcdir}/../mmalloc
+MMALLOC_DEP = $$(MMALLOC_DIR)
+# To use your system malloc, uncomment MMALLOC_DISABLE.
+#MMALLOC_DISABLE = -DNO_MMALLOC
+# To use mmalloc but disable corruption checking, uncomment MMALLOC_CHECK
+#MMALLOC_CHECK = -DNO_MMALLOC_CHECK
+MMALLOC_CFLAGS = ${MMALLOC_CHECK} ${MMALLOC_DISABLE}
+
+# Where is the source dir for the READLINE library? Traditionally in .. or .
+# (For the binary library built from it, we use ${READLINE_DIR}${subdir}.)
+READLINE_DIR = ${srcdir}/../readline
+READLINE_DEP = $$(READLINE_DIR)
+
+# All the includes used for CFLAGS and for lint.
+# -I. for config files.
+# -I${srcdir} possibly for regex.h also.
+# -I${srcdir}/config for more generic config files.
+INCLUDE_CFLAGS = -I. -I${srcdir} -I${srcdir}/.. -I${srcdir}/../config -I$(INCLUDE_DIR)
+
+# M{H,T}_CFLAGS, if defined, has host- and target-dependent CFLAGS
+# from the config/ directory.
+GLOBAL_CFLAGS = ${MT_CFLAGS} ${MH_CFLAGS}
+#PROFILE_CFLAGS = -pg
+
+# CFLAGS is specifically reserved for setting from the command line
+# when running make. I.E. "make CFLAGS=-Wmissing-prototypes".
+CFLAGS = -g
+# INTERNAL_CFLAGS is the aggregate of all other *CFLAGS macros.
+INTERNAL_CFLAGS = ${CFLAGS} ${GLOBAL_CFLAGS} ${PROFILE_CFLAGS} ${MMALLOC_CFLAGS} ${INCLUDE_CFLAGS} ${USER_CFLAGS}
+LDFLAGS = $(CFLAGS)
+
+# Perhaps should come from parent Makefile
+VERSION = gdbserver-4.9.1
+DIST=gdb
+
+LINT=/usr/5bin/lint
+LINTFLAGS= -I${BFD_DIR}
+
+# Host and target-dependent makefile fragments come in here.
+####
+# End of host and target-dependent makefile fragments
+
+# All source files that go into linking GDB remote server.
+
+SFILES = $(srcdir)/utils.c $(srcdir)/low-lynx.c $(srcdir)/low-sparc.c \
+ $(srcdir)/server.c $(srcdir)/remote-utils.c
+
+DEPFILES = $(GDBSERVER_DEPFILES)
+
+SOURCES = $(SFILES) $(ALLDEPFILES) $(YYFILES)
+TAGFILES = $(SOURCES) ${HFILES} ${ALLPARAM} ${POSSLIBS}
+
+OBS = utils.o $(GDBSERVER_DEPFILES) server.o remote-utils.o
+
+# Prevent Sun make from putting in the machine type. Setting
+# TARGET_ARCH to nothing works for SunOS 3, 4.0, but not for 4.1.
+.c.o:
+ ${CC} -c ${INTERNAL_CFLAGS} $<
+
+all: gdbserver
+
+installcheck:
+check:
+info dvi:
+install-info:
+clean-info:
+
+gdbserver: $(OBS) ${ADD_DEPS} ${CDEPS}
+ ${CC-LD} $(GLOBAL_CFLAGS) $(LDFLAGS) -o gdbserver $(OBS) \
+ $(GDBSERVER_LIBS)
+
+config.status:
+ @echo "You must configure gdbserver. Look at the README file for details."
+ @false
+
+# Put the proper machine-specific files first, so M-. on a machine
+# specific routine gets the one for the correct machine.
+# The xyzzy stuff below deals with empty DEPFILES
+TAGS: ${TAGFILES}
+ etags `find ${srcdir}/config -name $(TM_FILE) -print` \
+ `find ${srcdir}/config -name ${XM_FILE} -print` \
+ `find ${srcdir}/config -name ${NAT_FILE} -print` \
+ `for i in yzzy ${DEPFILES}; do \
+ if [ x$$i != xyzzy ]; then \
+ echo ${srcdir}/$$i | sed -e 's/\.o$$/\.c/' ; \
+ fi; \
+ done` \
+ ${TAGFILES}
+tags: TAGS
+
+# Making distributions of GDB and friends.
+
+# Make a tar file containing the GDB directory of the distribution.
+gdb.tar.Z: force_update
+ $(MAKE) $(MFLAGS) -f Makefile.in setup-to-dist
+ $(MAKE) $(MFLAGS) -f Makefile.in gdb-$(VERSION).tar.Z
+
+# Make a directory `proto-gdb.dir' that contains an image of the GDB
+# directory of the distribution, built up with symlinks. Note that this
+# make target is not directly referenced by any other rules in this makefile,
+# it is referenced by the makefile in the parent directory.
+make-proto-gdb.dir: force_update
+ $(MAKE) $(MFLAGS) -f Makefile.in setup-to-dist
+ $(MAKE) $(MFLAGS) -f Makefile make-proto-gdb-1
+
+# Set up the GDB source directory for distribution, by building all files that
+# are products of other files.
+setup-to-dist: update-depend force_update
+ ../configure none
+ (cd doc; $(MAKE) $(MFLAGS) GDBvn.texi)
+ $(MAKE) $(MFLAGS) gdb.info
+ $(MAKE) $(MFLAGS) refcard.ps
+
+# Update the "depend" and "alldeps.mak" files in a source directory.
+# We update alldeps.mak first, since it is used to generate the list
+# of files to be checked for dependencies.
+update-depend: update-alldeps force_update
+ ../configure none -norecursion
+ rm -f depend
+ $(MAKE) $(MFLAGS) depend
+
+# Update the "alldeps.mak" file in a source directory.
+update-alldeps: force_update
+ ../configure none -norecursion
+ rm -f alldeps.mak
+ $(MAKE) $(MFLAGS) alldeps.mak
+
+# Build a tar file from a proto-gdb.dir.
+gdb-$(VERSION).tar.Z: force_update
+ rm -f gdb.tar gdb-$(VERSION).tar.Z
+ $(MAKE) $(MFLAGS) -f Makefile make-proto-gdb-1
+ ln -s proto-gdb.dir $(DIST)
+ tar chf - $(DIST) | compress >gdb-$(VERSION).tar.Z
+ rm -rf $(DIST) proto-gdb.dir
+
+clean:
+ rm -f *.o ${ADD_FILES} *~
+ rm -f init.c version.c
+ rm -f gdbserver core make.log
+
+distclean: clean c-exp.tab.c m2-exp.tab.c ch-exp.tab.c TAGS
+ rm -f tm.h xm.h config.status
+ rm -f Makefile
+
+realclean: clean
+ rm -f c-exp.tab.c m2-exp.tab.c ch-exp.tab.c TAGS
+ rm -f tm.h xm.h config.status
+ rm -f Makefile
+
+STAGESTUFF=${OBS} ${TSOBS} ${NTSOBS} ${ADD_FILES} init.c init.o version.c gdb
+
+Makefile: $(srcdir)/Makefile.in $(host_makefile_frag) $(target_makefile_frag)
+ $(SHELL) ./config.status
+
+force:
+
+version.c: Makefile
+ echo 'char *version = "$(VERSION)";' >version.c
+
+# GNU Make has an annoying habit of putting *all* the Makefile variables
+# into the environment, unless you include this target as a circumvention.
+# Rumor is that this will be fixed (and this target can be removed)
+# in GNU Make 4.0.
+.NOEXPORT:
+
+# GNU Make 3.63 has a different problem: it keeps tacking command line
+# overrides onto the definition of $(MAKE). This variable setting
+# will remove them.
+MAKEOVERRIDES=
+
+## This is ugly, but I don't want GNU make to put these variables in
+## the environment. Older makes will see this as a set of targets
+## with no dependencies and no actions.
+unexport CHILLFLAGS CHILL_LIB CHILL_FOR_TARGET :
+
+server.o : ${srcdir}/server.c ${srcdir}/server.h
+remote-utils.o : ${srcdir}/remote-utils.c ${srcdir}/server.h
+low-lynx.o : ${srcdir}/low-lynx.c ${srcdir}/server.h
+low-sparc.o : $(srcdir)/low-sparc.c $(srcdir)/server.h
+utils.o : ${srcdir}/utils.c ${srcdir}/server.h
+
+# This is the end of "Makefile.in".
+++ /dev/null
-/* Main code for remote server for GDB.
- Copyright (C) 1989, 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#include "server.h"
-
-main (argc, argv)
- int argc;
- char *argv[];
-{
- char ch, status, own_buf[2000], mem_buf[2000];
- int i = 0;
- unsigned char signal;
- unsigned int mem_addr, len;
-
- if (setjmp(toplevel))
- {
- fprintf(stderr, "Exiting\n");
- exit(1);
- }
-
- if (argc < 3)
- error("Usage: gdbserver tty prog [args ...]");
-
- inferior_pid = create_inferior (argv[2], &argv[2]);
- fprintf (stderr, "Process %s created; pid = %d\n", argv[2], inferior_pid);
-
- signal = mywait (&status); /* Wait till we are at 1st instr in prog */
-
- /* We are now stopped at the first instruction of the target process */
-
- while (1)
- {
- remote_open (argv[1]);
-
- setjmp(toplevel);
- while (getpkt (own_buf) > 0)
- {
- i = 0;
- ch = own_buf[i++];
- switch (ch)
- {
- case '?':
- prepare_resume_reply (own_buf, status, signal);
- break;
- case 'g':
- convert_int_to_ascii (registers, own_buf, REGISTER_BYTES);
- break;
- case 'G':
- convert_ascii_to_int (&own_buf[1], registers, REGISTER_BYTES);
- store_inferior_registers (-1);
- write_ok (own_buf);
- break;
- case 'm':
- decode_m_packet (&own_buf[1], &mem_addr, &len);
- read_inferior_memory (mem_addr, mem_buf, len);
- convert_int_to_ascii (mem_buf, own_buf, len);
- break;
- case 'M':
- decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf);
- if (write_inferior_memory (mem_addr, mem_buf, len) == 0)
- write_ok (own_buf);
- else
- write_enn (own_buf);
- break;
- case 'c':
- myresume (0, 0);
- signal = mywait (&status);
- prepare_resume_reply (own_buf, status, signal);
- break;
- case 's':
- myresume (1, 0);
- signal = mywait (&status);
- prepare_resume_reply (own_buf, status, signal);
- break;
- case 'k':
- fprintf (stderr, "Killing inferior\n");
- kill_inferior ();
- inferior_pid = create_inferior (argv[2], &argv[2]);
- fprintf (stderr, "Process %s created; pid = %d\n", argv[2],
- inferior_pid);
- signal = mywait (&status); /* Wait till we are at 1st instr in prog */
- break;
- default:
- printf ("\nUnknown option chosen by master\n");
- write_enn (own_buf);
- break;
- }
-
- putpkt (own_buf);
- }
-
- /* We come here when getpkt fails. Close the connection, and re-open it
- at the top of the loop. */
-
- fprintf (stderr, "Remote side has terminated connection. GDBserver will reopen the connection.\n");
-
- remote_close ();
- }
-}
--- /dev/null
+/* Remote debugging interface for MONITOR boot monitor, for GDB.
+ Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
+ Contributed by Cygnus Support. Written by Rob Savoye for Cygnus.
+
+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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* This file was derived from remote-eb.c, which did a similar job, but for
+ an AMD-29K running EBMON. That file was in turn derived from remote.c
+ as mentioned in the following comment (left in for comic relief):
+
+ "This is like remote.c but is for an esoteric situation--
+ having an a29k board in a PC hooked up to a unix machine with
+ a serial line, and running ctty com1 on the PC, through which
+ the unix machine can run ebmon. Not to mention that the PC
+ has PC/NFS, so it can access the same executables that gdb can,
+ over the net in real time."
+
+ In reality, this module talks to a debug monitor called 'MONITOR', which
+ We communicate with MONITOR via either a direct serial line, or a TCP
+ (or possibly TELNET) stream to a terminal multiplexor,
+ which in turn talks to the target board.
+
+ This is based on remote-st2000.c. I left in the above note here for histerical
+ reasons.
+*/
+
+#include "defs.h"
+#include "gdbcore.h"
+#include "target.h"
+#include "wait.h"
+#include <varargs.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/types.h>
+#include "command.h"
+#include "serial.h"
+#include "monitor.h"
+
+#ifdef HAVE_TERMIO
+# define TERMINAL struct termios
+#else
+# define TERMINAL struct sgttyb
+#endif
+
+struct monitor_ops *current_monitor;
+extern struct target_ops rom68k_ops; /* Forward declaration */
+extern struct target_ops mon68_ops; /* Forward declaration */
+extern struct target_ops monitor_bug_ops; /* Forward declaration */
+extern struct monitor_ops rom68k_cmds; /* Forward declaration */
+extern struct monitor_ops mon68_cmds; /* Forward declaration */
+extern struct monitor_ops bug_cmds; /* Forward declaration */
+extern struct cmd_list_element *setlist;
+extern struct cmd_list_element *unsetlist;
+struct cmd_list_element *showlist;
+
+static void monitor_close();
+static void monitor_fetch_register();
+static void monitor_store_register();
+static int kiodebug; /* flag set by "set remotedebug" */
+static int hashmark; /* flag set by "set hash" */
+
+#define LOG_FILE "monitor.log"
+#if defined (LOG_FILE)
+FILE *log_file;
+#endif
+
+static int timeout = 24;
+
+/* Descriptor for I/O to remote machine. Initialize it to NULL so that
+ monitor_open knows that we don't have a file open when the program starts.
+ */
+static serial_t monitor_desc = NULL;
+
+/* Send data to monitor. Works just like printf. */
+
+static void
+printf_monitor(va_alist)
+ va_dcl
+{
+ va_list args;
+ char *pattern;
+ char buf[200];
+ int i;
+
+ va_start(args);
+
+ pattern = va_arg(args, char *);
+
+ vsprintf(buf, pattern, args);
+
+ if (SERIAL_WRITE(monitor_desc, buf, strlen(buf)))
+ fprintf(stderr, "SERIAL_WRITE failed: %s\n", safe_strerror(errno));
+}
+
+/* Read a character from the remote system, doing all the fancy
+ timeout stuff. */
+static int
+readchar(timeout)
+ int timeout;
+{
+ int c;
+
+ c = SERIAL_READCHAR(monitor_desc, timeout);
+
+ if (kiodebug)
+ putchar(c & 0x7f);
+
+#ifdef LOG_FILE
+ if (isascii (c))
+ putc(c & 0x7f, log_file);
+#endif
+
+ if (c >= 0)
+ return c & 0x7f;
+
+ if (c == SERIAL_TIMEOUT)
+ {
+ if (timeout == 0)
+ return c; /* Polls shouldn't generate timeout errors */
+
+ error("Timeout reading from remote system.");
+ }
+
+ perror_with_name("remote-monitor");
+}
+
+/* Scan input from the remote system, until STRING is found. If DISCARD is
+ non-zero, then discard non-matching input, else print it out.
+ Let the user break out immediately. */
+static void
+expect(string, discard)
+ char *string;
+ int discard;
+{
+ char *p = string;
+ int c;
+
+ if (kiodebug)
+ printf ("Expecting \"%s\"\n", string);
+
+ immediate_quit = 1;
+ while (1)
+ {
+ c = readchar(timeout);
+ if (!isascii (c))
+ continue;
+ if (c == *p++)
+ {
+ if (*p == '\0')
+ {
+ immediate_quit = 0;
+ if (kiodebug)
+ printf ("\nMatched\n");
+ return;
+ }
+ }
+ else
+ {
+ if (!discard)
+ {
+ fwrite(string, 1, (p - 1) - string, stdout);
+ putchar((char)c);
+ fflush(stdout);
+ }
+ p = string;
+ }
+ }
+}
+
+/* Keep discarding input until we see the MONITOR prompt.
+
+ The convention for dealing with the prompt is that you
+ o give your command
+ o *then* wait for the prompt.
+
+ Thus the last thing that a procedure does with the serial line
+ will be an expect_prompt(). Exception: monitor_resume does not
+ wait for the prompt, because the terminal is being handed over
+ to the inferior. However, the next thing which happens after that
+ is a monitor_wait which does wait for the prompt.
+ Note that this includes abnormal exit, e.g. error(). This is
+ necessary to prevent getting into states from which we can't
+ recover. */
+static void
+expect_prompt(discard)
+ int discard;
+{
+#if defined (LOG_FILE)
+ /* This is a convenient place to do this. The idea is to do it often
+ enough that we never lose much data if we terminate abnormally. */
+ fflush(log_file);
+#endif
+ expect (PROMPT, discard);
+}
+
+/* Get a hex digit from the remote system & return its value.
+ If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */
+static int
+get_hex_digit(ignore_space)
+ int ignore_space;
+{
+ int ch;
+ while (1)
+ {
+ ch = readchar(timeout);
+ if (ch >= '0' && ch <= '9')
+ return ch - '0';
+ else if (ch >= 'A' && ch <= 'F')
+ return ch - 'A' + 10;
+ else if (ch >= 'a' && ch <= 'f')
+ return ch - 'a' + 10;
+ else if (ch == ' ' && ignore_space)
+ ;
+ else
+ {
+ expect_prompt(1);
+ error("Invalid hex digit from remote system.");
+ }
+ }
+}
+
+/* Get a byte from monitor and put it in *BYT. Accept any number
+ leading spaces. */
+static void
+get_hex_byte (byt)
+ char *byt;
+{
+ int val;
+
+ val = get_hex_digit (1) << 4;
+ val |= get_hex_digit (0);
+ *byt = val;
+}
+
+/* Get N 32-bit words from remote, each preceded by a space,
+ and put them in registers starting at REGNO. */
+static void
+get_hex_regs (n, regno)
+ int n;
+ int regno;
+{
+ long val;
+ int i;
+
+ for (i = 0; i < n; i++)
+ {
+ int j;
+
+ val = 0;
+ for (j = 0; j < 8; j++)
+ val = (val << 4) + get_hex_digit (j == 0);
+ supply_register (regno++, (char *) &val);
+ }
+}
+
+/* This is called not only when we first attach, but also when the
+ user types "run" after having attached. */
+static void
+monitor_create_inferior (execfile, args, env)
+ char *execfile;
+ char *args;
+ char **env;
+{
+ int entry_pt;
+
+ if (args && *args)
+ error("Can't pass arguments to remote MONITOR process");
+
+ if (execfile == 0 || exec_bfd == 0)
+ error("No exec file specified");
+
+ entry_pt = (int) bfd_get_start_address (exec_bfd);
+
+#ifdef CREATE_INFERIOR_HOOK
+ CREATE_INFERIOR_HOOK (0); /* No process-ID */
+#endif
+#ifdef LOG_FILE
+ fputs ("\nIn Create_inferior()", log_file);
+#endif
+
+/* The "process" (board) is already stopped awaiting our commands, and
+ the program is already downloaded. We just set its PC and go. */
+
+ clear_proceed_status ();
+
+ /* Tell wait_for_inferior that we've started a new process. */
+ init_wait_for_inferior ();
+
+ /* Set up the "saved terminal modes" of the inferior
+ based on what modes we are starting it with. */
+ target_terminal_init ();
+
+ /* Install inferior's terminal modes. */
+ target_terminal_inferior ();
+
+ /* insert_step_breakpoint (); FIXME, do we need this? */
+ proceed ((CORE_ADDR)entry_pt, -1, 0); /* Let 'er rip... */
+}
+
+/* Open a connection to a remote debugger.
+ NAME is the filename used for communication. */
+
+static int baudrate = 9600;
+static char dev_name[100];
+
+static void
+general_open(args, name, from_tty)
+ char *args;
+ char *name;
+ int from_tty;
+{
+ if (args == NULL)
+ error ("Use `target %s DEVICE-NAME' to use a serial port, or \n\
+`target %s HOST-NAME:PORT-NUMBER' to use a network connection.", name, name);
+
+ target_preopen(from_tty);
+
+ monitor_close(0);
+
+ monitor_desc = SERIAL_OPEN(dev_name);
+
+ if (monitor_desc == NULL)
+ perror_with_name(dev_name);
+
+ /* The baud rate was specified when GDB was started. */
+ if (baud_rate)
+ {
+ int rate;
+
+ if (sscanf (baud_rate, "%d", &rate) == 1)
+ if (SERIAL_SETBAUDRATE (monitor_desc, rate))
+ {
+ SERIAL_CLOSE (monitor_desc);
+ perror_with_name (name);
+ }
+ }
+
+ SERIAL_RAW(monitor_desc);
+
+#if defined (LOG_FILE)
+ log_file = fopen (LOG_FILE, "w");
+ if (log_file == NULL)
+ perror_with_name (LOG_FILE);
+#endif
+
+ /* Hello? Are you there? */
+ printf_monitor("\r"); /* CR wakes up monitor */
+
+ expect_prompt(1);
+
+ if (from_tty)
+ printf("Remote %s connected to %s\n", target_shortname,
+ dev_name);
+}
+
+static void
+rom68k_open(args, from_tty)
+ char *args;
+ int from_tty;
+{
+ push_target(&rom68k_ops);
+ push_monitor (&rom68k_cmds);
+
+ general_open (args, "rom68k", from_tty);
+}
+
+static void
+mon68_open(args, from_tty)
+ char *args;
+ int from_tty;
+{
+ push_target(&mon68_ops);
+ push_monitor (&mon68_cmds);
+
+ general_open (args, "mon68", from_tty);
+}
+
+static void
+bug_open(args, from_tty)
+ char *args;
+ int from_tty;
+{
+ push_target(&monitor_bug_ops);
+ push_monitor (&bug_cmds);
+
+ general_open (args, "bug", from_tty);
+}
+
+/*
+ * _close -- Close out all files and local state before this target loses control.
+ */
+
+static void
+monitor_close (quitting)
+ int quitting;
+{
+ SERIAL_CLOSE(monitor_desc);
+ monitor_desc = NULL;
+
+#if defined (LOG_FILE)
+ if (log_file) {
+ if (ferror(log_file))
+ fprintf(stderr, "Error writing log file.\n");
+ if (fclose(log_file) != 0)
+ fprintf(stderr, "Error closing log file.\n");
+ }
+#endif
+}
+
+/* Terminate the open connection to the remote debugger.
+ Use this when you want to detach and do something else
+ with your gdb. */
+static void
+monitor_detach (from_tty)
+ int from_tty;
+{
+ pop_target(); /* calls monitor_close to do the real work */
+ if (from_tty)
+ printf ("Ending remote %s debugging\n", target_shortname);
+}
+
+/*
+ * _resume -- Tell the remote machine to resume.
+ */
+static void
+monitor_resume (pid, step, sig)
+ int pid, step, sig;
+{
+#ifdef LOG_FILE
+ fprintf (log_file, "\nIn Resume (step=%d, sig=%d)\n", step, sig);
+#endif
+
+ if (step)
+ {
+ printf_monitor (STEP_CMD);
+ /* wait for the echo. */
+ expect (STEP_CMD, 1);
+ }
+ else
+ {
+ printf_monitor (GO_CMD);
+ /* swallow the echo. */
+ expect (GO_CMD, 1);
+ }
+}
+
+/*
+ * _wait -- Wait until the remote machine stops, then return,
+ * storing status in status just as `wait' would.
+ */
+
+static int
+monitor_wait (status)
+ WAITTYPE *status;
+{
+ int old_timeout = timeout;
+#ifdef LOG_FILE
+ fputs ("\nIn wait ()", log_file);
+#endif
+
+ WSETEXIT ((*status), 0);
+
+ timeout = 0; /* Don't time out -- user program is running. */
+
+ expect_prompt(0); /* Wait for prompt, outputting extraneous text */
+
+ WSETSTOP ((*status), SIGTRAP);
+
+ timeout = old_timeout;
+
+ return 0;
+}
+
+/* Return the name of register number regno in the form input and output by
+ monitor. Currently, register_names just happens to contain exactly what
+ monitor wants. Lets take advantage of that just as long as possible! */
+
+static char *
+get_reg_name (regno)
+ int regno;
+{
+ static char buf[50];
+ const char *p;
+ char *b;
+
+ b = buf;
+
+ if (regno < 0)
+ return ("");
+ for (p = reg_names[regno]; *p; p++)
+ *b++ = toupper(*p);
+ *b = '\000';
+
+ return buf;
+}
+
+/* read the remote registers into the block regs. */
+
+static void
+monitor_fetch_registers ()
+{
+ int regno;
+
+ /* yeah yeah, i know this is horribly inefficient. but it isn't done
+ very often... i'll clean it up later. */
+
+ for (regno = 0; regno <= PC_REGNUM; regno++)
+ monitor_fetch_register(regno);
+}
+
+/* Fetch register REGNO, or all registers if REGNO is -1.
+ Returns errno value. */
+static void
+monitor_fetch_register (regno)
+ int regno;
+{
+ int val, j;
+
+#ifdef LOG_FILE
+ fprintf (log_file, "\nIn Fetch Register (reg=%s)\n", get_reg_name (regno));
+ fflush (log_file);
+#endif
+
+ if (regno < 0)
+ {
+ monitor_fetch_registers ();
+ }
+ else
+ {
+ char *name = get_reg_name (regno);
+ printf_monitor (GET_REG, name);
+ expect (name, 1);
+ expect (REG_DELIM, 1);
+ if (strcasecmp (name, "SR") == 0)
+ {
+ val = 0;
+ for (j = 0; j < 4; j++)
+ val = (val << 4) + get_hex_digit (j == 0);
+ supply_register (regno, (char *) &val);
+ }
+ else
+ {
+ get_hex_regs (1, regno);
+ }
+ if (CMD_END)
+ {
+ expect (CMD_DELIM);
+ printf_monitor (CMD_END);
+ }
+ expect_prompt (1);
+ }
+ return;
+}
+
+/* Store the remote registers from the contents of the block REGS. */
+
+static void
+monitor_store_registers ()
+{
+ int regno;
+
+ for (regno = 0; regno <= PC_REGNUM; regno++)
+ monitor_store_register(regno);
+
+ registers_changed ();
+}
+
+/* Store register REGNO, or all if REGNO == 0.
+ return errno value. */
+static void
+monitor_store_register (regno)
+ int regno;
+{
+#ifdef LOG_FILE
+ fprintf (log_file, "\nIn Store_register (regno=%d)\n", regno);
+#endif
+ if (regno == -1)
+ monitor_store_registers ();
+ else
+ {
+ if (kiodebug)
+ printf ("Setting register %s to 0x%x\n", get_reg_name (regno), read_register (regno));
+
+ printf_monitor (SET_REG, get_reg_name (regno),
+ read_register (regno));
+
+ expect_prompt (1);
+ }
+}
+
+/* Get ready to modify the registers array. On machines which store
+ individual registers, this doesn't need to do anything. On machines
+ which store all the registers in one fell swoop, this makes sure
+ that registers contains all the registers from the program being
+ debugged. */
+
+static void
+monitor_prepare_to_store ()
+{
+ /* Do nothing, since we can store individual regs */
+}
+
+static void
+monitor_files_info ()
+{
+ printf ("\tAttached to %s at %d baud.\n",
+ dev_name, baudrate);
+}
+
+/* Copy LEN bytes of data from debugger memory at MYADDR
+ to inferior's memory at MEMADDR. Returns length moved. */
+static int
+monitor_write_inferior_memory (memaddr, myaddr, len)
+ CORE_ADDR memaddr;
+ unsigned char *myaddr;
+ int len;
+{
+ int i;
+ char buf[10];
+
+#ifdef LOG_FILE
+ fprintf (log_file, "\nIn Write_inferior_memory (memaddr=%x, len=%d)\n", memaddr, len);
+#endif
+ for (i = 0; i < len; i++)
+ {
+ printf_monitor (MEM_SET_CMD, memaddr + i);
+ expect (sprintf (buf, MEM_PROMPT, memaddr + i), 1);
+ expect (CMD_DELIM);
+ printf_monitor ("%x", myaddr[i]);
+ if (kiodebug)
+ printf ("\nSet 0x%x to 0x%x\n", memaddr + i, myaddr[i]);
+ if (CMD_END)
+ {
+/*** expect (sprintf (buf, MEM_PROMPT, memaddr + i +1), 1);
+ expect (CMD_DELIM); ***/
+ printf_monitor (CMD_END);
+ }
+ expect_prompt (1);
+ }
+ return len;
+}
+
+/* Read LEN bytes from inferior memory at MEMADDR. Put the result
+ at debugger address MYADDR. Returns length moved. */
+static int
+monitor_read_inferior_memory(memaddr, myaddr, len)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+{
+ int i, j;
+ char buf[20];
+
+ /* Number of bytes read so far. */
+ int count;
+
+ /* Starting address of this pass. */
+ unsigned long startaddr;
+
+ /* Number of bytes to read in this pass. */
+ int len_this_pass;
+
+#ifdef LOG_FILE
+ fprintf (log_file, "\nIn Read_inferior_memory (memaddr=%x, len=%d)\n", memaddr, len);
+#endif
+
+ /* Note that this code works correctly if startaddr is just less
+ than UINT_MAX (well, really CORE_ADDR_MAX if there was such a
+ thing). That is, something like
+ monitor_read_bytes (CORE_ADDR_MAX - 4, foo, 4)
+ works--it never adds len To memaddr and gets 0. */
+ /* However, something like
+ monitor_read_bytes (CORE_ADDR_MAX - 3, foo, 4)
+ doesn't need to work. Detect it and give up if there's an attempt
+ to do that. */
+ if (((memaddr - 1) + len) < memaddr) {
+ errno = EIO;
+ return 0;
+ }
+
+ startaddr = memaddr;
+ count = 0;
+ while (count < len)
+ {
+ len_this_pass = 16;
+ if ((startaddr % 16) != 0)
+ len_this_pass -= startaddr % 16;
+ if (len_this_pass > (len - count))
+ len_this_pass = (len - count);
+ if (kiodebug)
+ printf ("\nDisplay %d bytes at %x\n", len_this_pass, startaddr);
+
+ for (i = 0; i < len_this_pass; i++)
+ {
+ printf_monitor (MEM_DIS_CMD, startaddr);
+ expect (sprintf(buf, MEM_PROMPT, startaddr), 1);
+ get_hex_byte (&myaddr[count++]);
+ if (kiodebug)
+ printf ("\nRead a 0x%x from 0x%x\n", myaddr[count-1], startaddr);
+ if (CMD_END)
+ {
+ expect (CMD_DELIM);
+ printf_monitor (CMD_END);
+ }
+ expect_prompt (1);
+ startaddr += 1;
+ }
+ }
+ return len;
+}
+
+/* FIXME-someday! merge these two. */
+static int
+monitor_xfer_inferior_memory (memaddr, myaddr, len, write, target)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+ int write;
+ struct target_ops *target; /* ignored */
+{
+ if (write)
+ return monitor_write_inferior_memory (memaddr, myaddr, len);
+ else
+ return monitor_read_inferior_memory (memaddr, myaddr, len);
+}
+
+static void
+monitor_kill (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ return; /* ignore attempts to kill target system */
+}
+
+/* Clean up when a program exits.
+ The program actually lives on in the remote processor's RAM, and may be
+ run again without a download. Don't leave it full of breakpoint
+ instructions. */
+
+static void
+monitor_mourn_inferior ()
+{
+ remove_breakpoints ();
+ generic_mourn_inferior (); /* Do all the proper things now */
+}
+
+#define MAX_MONITOR_BREAKPOINTS 16
+
+extern int memory_breakpoint_size;
+static CORE_ADDR breakaddr[MAX_MONITOR_BREAKPOINTS] = {0};
+
+static int
+monitor_insert_breakpoint (addr, shadow)
+ CORE_ADDR addr;
+ char *shadow;
+{
+ int i;
+
+#ifdef LOG_FILE
+ fprintf (log_file, "\nIn Insert_breakpoint (addr=%x)\n", addr);
+#endif
+ for (i = 0; i <= MAX_MONITOR_BREAKPOINTS; i++)
+ if (breakaddr[i] == 0)
+ {
+ breakaddr[i] = addr;
+ if (kiodebug)
+ printf ("Breakpoint at %x\n", addr);
+ monitor_read_inferior_memory(addr, shadow, memory_breakpoint_size);
+ printf_monitor(SET_BREAK_CMD, addr);
+ expect_prompt(1);
+ return 0;
+ }
+
+ fprintf(stderr, "Too many breakpoints (> 16) for monitor\n");
+ return 1;
+}
+
+/*
+ * _remove_breakpoint -- Tell the monitor to remove a breakpoint
+ */
+static int
+monitor_remove_breakpoint (addr, shadow)
+ CORE_ADDR addr;
+ char *shadow;
+{
+ int i;
+
+#ifdef LOG_FILE
+ fprintf (log_file, "\nIn Remove_breakpoint (addr=%x)\n", addr);
+#endif
+ for (i = 0; i < MAX_MONITOR_BREAKPOINTS; i++)
+ if (breakaddr[i] == addr)
+ {
+ breakaddr[i] = 0;
+ /* some monitors remove breakpoints based on the address */
+ if (strcasecmp (target_shortname, "bug") == 0)
+ printf_monitor(CLR_BREAK_CMD, addr);
+ else
+ printf_monitor(CLR_BREAK_CMD, i);
+ expect_prompt(1);
+ return 0;
+ }
+
+ fprintf(stderr, "Can't find breakpoint associated with 0x%x\n", addr);
+ return 1;
+}
+
+/* Load a file. This is usually an srecord, which is ascii. No
+ protocol, just sent line by line. */
+
+#define DOWNLOAD_LINE_SIZE 100
+static void
+monitor_load (arg)
+ char *arg;
+{
+ FILE *download;
+ char buf[DOWNLOAD_LINE_SIZE];
+ int i, bytes_read;
+
+ if (kiodebug)
+ printf ("Loading %s to monitor\n", arg);
+
+ download = fopen (arg, "r");
+ if (download == NULL)
+ {
+ error (sprintf (buf, "%s Does not exist", arg));
+ return;
+ }
+
+ printf_monitor (LOAD_CMD);
+/* expect ("Waiting for S-records from host... ", 1); */
+
+ while (!feof (download))
+ {
+ bytes_read = fread (buf, sizeof (char), DOWNLOAD_LINE_SIZE, download);
+ if (hashmark)
+ {
+ putchar ('.');
+ fflush (stdout);
+ }
+
+ if (SERIAL_WRITE(monitor_desc, buf, bytes_read)) {
+ fprintf(stderr, "SERIAL_WRITE failed: (while downloading) %s\n", safe_strerror(errno));
+ break;
+ }
+ i = 0;
+ while (i++ <=200000) {} ; /* Ugly HACK, probably needs flow control */
+ if (bytes_read < DOWNLOAD_LINE_SIZE)
+ {
+ if (!feof (download))
+ error ("Only read %d bytes\n", bytes_read);
+ break;
+ }
+ }
+
+ if (hashmark)
+ {
+ putchar ('\n');
+ }
+ if (!feof (download))
+ error ("Never got EOF while downloading");
+ fclose (download);
+}
+
+/* Put a command string, in args, out to MONITOR. Output from MONITOR is placed
+ on the users terminal until the prompt is seen. */
+
+static void
+monitor_command (args, fromtty)
+ char *args;
+ int fromtty;
+{
+#ifdef LOG_FILE
+ fprintf (log_file, "\nIn command (args=%s)\n", args);
+#endif
+ if (monitor_desc == NULL)
+ error("monitor target not open.");
+
+ if (!args)
+ error("Missing command.");
+
+ printf_monitor("%s\r", args);
+ expect_prompt(0);
+}
+
+#if 0
+
+/* Connect the user directly to MONITOR. This command acts just like the
+ 'cu' or 'tip' command. Use <CR>~. or <CR>~^D to break out. */
+
+static struct ttystate ttystate;
+
+static void
+cleanup_tty()
+{ printf("\r\n[Exiting connect mode]\r\n");
+ /*SERIAL_RESTORE(0, &ttystate);*/
+}
+
+static void
+connect_command (args, fromtty)
+ char *args;
+ int fromtty;
+{
+ fd_set readfds;
+ int numfds;
+ int c;
+ char cur_esc = 0;
+
+ dont_repeat();
+
+ if (monitor_desc == NULL)
+ error("monitor target not open.");
+
+ if (args)
+ fprintf("This command takes no args. They have been ignored.\n");
+
+ printf("[Entering connect mode. Use ~. or ~^D to escape]\n");
+
+ serial_raw(0, &ttystate);
+
+ make_cleanup(cleanup_tty, 0);
+
+ FD_ZERO(&readfds);
+
+ while (1)
+ {
+ do
+ {
+ FD_SET(0, &readfds);
+ FD_SET(monitor_desc, &readfds);
+ numfds = select(sizeof(readfds)*8, &readfds, 0, 0, 0);
+ }
+ while (numfds == 0);
+
+ if (numfds < 0)
+ perror_with_name("select");
+
+ if (FD_ISSET(0, &readfds))
+ { /* tty input, send to monitor */
+ c = getchar();
+ if (c < 0)
+ perror_with_name("connect");
+
+ printf_monitor("%c", c);
+ switch (cur_esc)
+ {
+ case 0:
+ if (c == '\r')
+ cur_esc = c;
+ break;
+ case '\r':
+ if (c == '~')
+ cur_esc = c;
+ else
+ cur_esc = 0;
+ break;
+ case '~':
+ if (c == '.' || c == '\004')
+ return;
+ else
+ cur_esc = 0;
+ }
+ }
+
+ if (FD_ISSET(monitor_desc, &readfds))
+ {
+ while (1)
+ {
+ c = readchar(0);
+ if (c < 0)
+ break;
+ putchar(c);
+ }
+ fflush(stdout);
+ }
+ }
+}
+#endif
+
+/*
+ * 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.
+ */
+struct monitor_ops rom68k_cmds = {
+ "go \r", /* execute or usually GO command */
+ "go \r", /* continue command */
+ "st \r", /* single step */
+ "db %x\r", /* set a breakpoint */
+ "cb %x\r", /* clear a breakpoint */
+ "pm %x\r", /* set memory to a value */
+ "pm %x\r", /* display memory */
+ "-%08X ", /* prompt memory commands use */
+ "pr %s %x\r", /* set a register */
+ ": ", /* delimiter between registers */
+ "pr %s\r", /* read a register */
+ "dc \r", /* download command */
+ "ROM68K :->", /* monitor command prompt */
+ "=", /* end-of-command delimitor */
+ ".\r" /* optional command terminator */
+};
+
+struct monitor_ops bug_cmds = {
+ "go \r", /* execute or usually GO command */
+ "go \r", /* continue command */
+ "gn \r", /* single step */
+ "br %x\r", /* set a breakpoint */
+ "nobr %x\r", /* clear a breakpoint */
+ "mm %x\r", /* set memory to a value */
+ "mm %x\r", /* display memory */
+ "%08X", /* prompt memory commands use */
+ "rs %s %x\r", /* set a register */
+ "=", /* delimiter between registers */
+ "rm %s\r", /* read a register */
+ "lo 0\r", /* download command */
+ "Bug>", /* monitor command prompt */
+ "? ", /* end-of-command delimitor */
+ ".\r" /* optional command terminator */
+};
+
+/* Define the target subroutine names */
+struct monitor_ops mon68_cmds = {
+ "", /* execute or usually GO command */
+ "", /* continue command */
+ "", /* single step */
+ "", /* set a breakpoint */
+ "", /* clear a breakpoint */
+ "", /* set memory to a value */
+ "", /* display memory */
+ "", /* set a register */
+ "", /* delimiter between registers */
+ "", /* read a register */
+ "", /* download command */
+ ">", /* monitor command prompt */
+ "", /* end-of-command delimitor */
+ "" /* optional command terminator */
+};
+
+struct target_ops rom68k_ops = {
+ "rom68k",
+ "Integrated System's ROM68K remote debug monitor",
+ "Use a remote computer running the ROM68K debug monitor.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).",
+ rom68k_open,
+ monitor_close,
+ 0,
+ monitor_detach,
+ monitor_resume,
+ monitor_wait,
+ monitor_fetch_register,
+ monitor_store_register,
+ monitor_prepare_to_store,
+ monitor_xfer_inferior_memory,
+ monitor_files_info,
+ monitor_insert_breakpoint,
+ monitor_remove_breakpoint, /* Breakpoints */
+ 0,
+ 0,
+ 0,
+ 0,
+ 0, /* Terminal handling */
+ monitor_kill,
+ monitor_load, /* load */
+ 0, /* lookup_symbol */
+ monitor_create_inferior,
+ monitor_mourn_inferior,
+ 0, /* can_run */
+ 0, /* notice_signals */
+ process_stratum,
+ 0, /* next */
+ 1,
+ 1,
+ 1,
+ 1,
+ 1, /* all mem, mem, stack, regs, exec */
+ 0,
+ 0, /* Section pointers */
+ OPS_MAGIC, /* Always the last thing */
+};
+
+struct target_ops monitor_bug_ops = {
+ "bug",
+ "Motorola's BUG remote serial debug monitor",
+ "Use a remote computer running Motorola's BUG debug monitor.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).",
+ bug_open,
+ monitor_close,
+ 0,
+ monitor_detach,
+ monitor_resume,
+ monitor_wait,
+ monitor_fetch_register,
+ monitor_store_register,
+ monitor_prepare_to_store,
+ monitor_xfer_inferior_memory,
+ monitor_files_info,
+ monitor_insert_breakpoint,
+ monitor_remove_breakpoint, /* Breakpoints */
+ 0,
+ 0,
+ 0,
+ 0,
+ 0, /* Terminal handling */
+ monitor_kill,
+ monitor_load, /* load */
+ 0, /* lookup_symbol */
+ monitor_create_inferior,
+ monitor_mourn_inferior,
+ 0, /* can_run */
+ 0, /* notice_signals */
+ process_stratum,
+ 0, /* next */
+ 1,
+ 1,
+ 1,
+ 1,
+ 1, /* all mem, mem, stack, regs, exec */
+ 0,
+ 0, /* Section pointers */
+ OPS_MAGIC, /* Always the last thing */
+};
+
+struct target_ops mon68_ops = {
+ "mon68",
+ "Intermetric's MON68 remote serial debug monitor",
+ "Use a remote computer running the MON68 debug monitor.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).",
+ mon68_open,
+ monitor_close,
+ 0,
+ monitor_detach,
+ monitor_resume,
+ monitor_wait,
+ monitor_fetch_register,
+ monitor_store_register,
+ monitor_prepare_to_store,
+ monitor_xfer_inferior_memory,
+ monitor_files_info,
+ monitor_insert_breakpoint,
+ monitor_remove_breakpoint, /* Breakpoints */
+ 0,
+ 0,
+ 0,
+ 0,
+ 0, /* Terminal handling */
+ monitor_kill,
+ monitor_load, /* load */
+ 0, /* lookup_symbol */
+ monitor_create_inferior,
+ monitor_mourn_inferior,
+ 0, /* can_run */
+ 0, /* notice_signals */
+ process_stratum,
+ 0, /* next */
+ 1,
+ 1,
+ 1,
+ 1,
+ 1, /* all mem, mem, stack, regs, exec */
+ 0,
+ 0, /* Section pointers */
+ OPS_MAGIC, /* Always the last thing */
+};
+
+void
+_initialize_remote_monitors ()
+{
+ add_show_from_set (
+ add_set_cmd ("remotedebug", no_class, var_boolean,
+ (char *)&kiodebug,
+ "Set debugging of I/O to a serial based Monitor.\n\
+When enabled, debugging info is displayed.",
+ &setlist),
+ &showlist);
+ add_show_from_set (
+ add_set_cmd ("hash", no_class, var_boolean,
+ (char *)&hashmark,
+ "Set display of activity while downloading a file.\n\
+When enabled, a period \'.\' is displayed.",
+ &setlist),
+ &showlist);
+
+ /* generic monitor command */
+ add_com ("monitor <command>", class_obscure, monitor_command,
+ "Send a command to the debug monitor.");
+#if 0
+ add_com ("connect", class_obscure, connect_command,
+ "Connect the terminal directly up to a serial based command monitor.\n\
+Use <CR>~. or <CR>~^D to break out.");
+#endif
+
+ add_target (&rom68k_ops);
+/* add_target (&mon68_ops); */
+ add_target (&monitor_bug_ops);
+}
-/* Remote debugging interface for MONITOR boot monitor, for GDB.
- Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
- Contributed by Cygnus Support. Written by Rob Savoye for Cygnus.
-
-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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-/* This file was derived from remote-eb.c, which did a similar job, but for
- an AMD-29K running EBMON. That file was in turn derived from remote.c
- as mentioned in the following comment (left in for comic relief):
-
- "This is like remote.c but is for an esoteric situation--
- having an a29k board in a PC hooked up to a unix machine with
- a serial line, and running ctty com1 on the PC, through which
- the unix machine can run ebmon. Not to mention that the PC
- has PC/NFS, so it can access the same executables that gdb can,
- over the net in real time."
-
- In reality, this module talks to a debug monitor called 'MONITOR', which
- We communicate with MONITOR via either a direct serial line, or a TCP
- (or possibly TELNET) stream to a terminal multiplexor,
- which in turn talks to the target board.
-
- This is based on remote-st2000.c. I left in the above note here for histerical
- reasons.
-*/
-
-#include "defs.h"
-#include "gdbcore.h"
-#include "target.h"
-#include "wait.h"
-#include <varargs.h>
-#include <signal.h>
-#include <string.h>
-#include <sys/types.h>
-#include "command.h"
-#include "serial.h"
-#include "monitor.h"
-
-#ifdef HAVE_TERMIO
-# define TERMINAL struct termios
-#else
-# define TERMINAL struct sgttyb
-#endif
-
-struct monitor_ops *current_monitor;
-extern struct target_ops rom68k_ops; /* Forward declaration */
-extern struct target_ops mon68_ops; /* Forward declaration */
-extern struct target_ops monitor_bug_ops; /* Forward declaration */
-extern struct monitor_ops rom68k_cmds; /* Forward declaration */
-extern struct monitor_ops mon68_cmds; /* Forward declaration */
-extern struct monitor_ops bug_cmds; /* Forward declaration */
-extern struct cmd_list_element *setlist;
-extern struct cmd_list_element *unsetlist;
-struct cmd_list_element *showlist;
-
-static void monitor_close();
-static void monitor_fetch_register();
-static void monitor_store_register();
-static int kiodebug; /* flag set by "set remotedebug" */
-static int hashmark; /* flag set by "set hash" */
-
-#define LOG_FILE "monitor.log"
-#if defined (LOG_FILE)
-FILE *log_file;
-#endif
-
-static int timeout = 24;
-
-/* Descriptor for I/O to remote machine. Initialize it to NULL so that
- monitor_open knows that we don't have a file open when the program starts.
- */
-static serial_t monitor_desc = NULL;
-
-/* Send data to monitor. Works just like printf. */
-
-static void
-printf_monitor(va_alist)
- va_dcl
-{
- va_list args;
- char *pattern;
- char buf[200];
- int i;
-
- va_start(args);
-
- pattern = va_arg(args, char *);
-
- vsprintf(buf, pattern, args);
-
- if (SERIAL_WRITE(monitor_desc, buf, strlen(buf)))
- fprintf(stderr, "SERIAL_WRITE failed: %s\n", safe_strerror(errno));
-}
-
-/* Read a character from the remote system, doing all the fancy
- timeout stuff. */
-static int
-readchar(timeout)
- int timeout;
-{
- int c;
-
- c = SERIAL_READCHAR(monitor_desc, timeout);
-
- if (kiodebug)
- putchar(c & 0x7f);
-
-#ifdef LOG_FILE
- if (isascii (c))
- putc(c & 0x7f, log_file);
-#endif
-
- if (c >= 0)
- return c & 0x7f;
-
- if (c == SERIAL_TIMEOUT)
- {
- if (timeout == 0)
- return c; /* Polls shouldn't generate timeout errors */
-
- error("Timeout reading from remote system.");
- }
-
- perror_with_name("remote-monitor");
-}
-
-/* Scan input from the remote system, until STRING is found. If DISCARD is
- non-zero, then discard non-matching input, else print it out.
- Let the user break out immediately. */
-static void
-expect(string, discard)
- char *string;
- int discard;
-{
- char *p = string;
- int c;
-
- if (kiodebug)
- printf ("Expecting \"%s\"\n", string);
-
- immediate_quit = 1;
- while (1)
- {
- c = readchar(timeout);
- if (!isascii (c))
- continue;
- if (c == *p++)
- {
- if (*p == '\0')
- {
- immediate_quit = 0;
- if (kiodebug)
- printf ("\nMatched\n");
- return;
- }
- }
- else
- {
- if (!discard)
- {
- fwrite(string, 1, (p - 1) - string, stdout);
- putchar((char)c);
- fflush(stdout);
- }
- p = string;
- }
- }
-}
-
-/* Keep discarding input until we see the MONITOR prompt.
-
- The convention for dealing with the prompt is that you
- o give your command
- o *then* wait for the prompt.
-
- Thus the last thing that a procedure does with the serial line
- will be an expect_prompt(). Exception: monitor_resume does not
- wait for the prompt, because the terminal is being handed over
- to the inferior. However, the next thing which happens after that
- is a monitor_wait which does wait for the prompt.
- Note that this includes abnormal exit, e.g. error(). This is
- necessary to prevent getting into states from which we can't
- recover. */
-static void
-expect_prompt(discard)
- int discard;
-{
-#if defined (LOG_FILE)
- /* This is a convenient place to do this. The idea is to do it often
- enough that we never lose much data if we terminate abnormally. */
- fflush(log_file);
-#endif
- expect (PROMPT, discard);
-}
-
-/* Get a hex digit from the remote system & return its value.
- If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */
-static int
-get_hex_digit(ignore_space)
- int ignore_space;
-{
- int ch;
- while (1)
- {
- ch = readchar(timeout);
- if (ch >= '0' && ch <= '9')
- return ch - '0';
- else if (ch >= 'A' && ch <= 'F')
- return ch - 'A' + 10;
- else if (ch >= 'a' && ch <= 'f')
- return ch - 'a' + 10;
- else if (ch == ' ' && ignore_space)
- ;
- else
- {
- expect_prompt(1);
- error("Invalid hex digit from remote system.");
- }
- }
-}
-
-/* Get a byte from monitor and put it in *BYT. Accept any number
- leading spaces. */
-static void
-get_hex_byte (byt)
- char *byt;
-{
- int val;
-
- val = get_hex_digit (1) << 4;
- val |= get_hex_digit (0);
- *byt = val;
-}
-
-/* Get N 32-bit words from remote, each preceded by a space,
- and put them in registers starting at REGNO. */
-static void
-get_hex_regs (n, regno)
- int n;
- int regno;
-{
- long val;
- int i;
-
- for (i = 0; i < n; i++)
- {
- int j;
-
- val = 0;
- for (j = 0; j < 8; j++)
- val = (val << 4) + get_hex_digit (j == 0);
- supply_register (regno++, (char *) &val);
- }
-}
-
-/* This is called not only when we first attach, but also when the
- user types "run" after having attached. */
-static void
-monitor_create_inferior (execfile, args, env)
- char *execfile;
- char *args;
- char **env;
-{
- int entry_pt;
-
- if (args && *args)
- error("Can't pass arguments to remote MONITOR process");
-
- if (execfile == 0 || exec_bfd == 0)
- error("No exec file specified");
-
- entry_pt = (int) bfd_get_start_address (exec_bfd);
-
-#ifdef CREATE_INFERIOR_HOOK
- CREATE_INFERIOR_HOOK (0); /* No process-ID */
-#endif
-#ifdef LOG_FILE
- fputs ("\nIn Create_inferior()", log_file);
-#endif
-
-/* The "process" (board) is already stopped awaiting our commands, and
- the program is already downloaded. We just set its PC and go. */
-
- clear_proceed_status ();
-
- /* Tell wait_for_inferior that we've started a new process. */
- init_wait_for_inferior ();
-
- /* Set up the "saved terminal modes" of the inferior
- based on what modes we are starting it with. */
- target_terminal_init ();
-
- /* Install inferior's terminal modes. */
- target_terminal_inferior ();
-
- /* insert_step_breakpoint (); FIXME, do we need this? */
- proceed ((CORE_ADDR)entry_pt, -1, 0); /* Let 'er rip... */
-}
-
-/* Open a connection to a remote debugger.
- NAME is the filename used for communication. */
-
-static int baudrate = 9600;
-static char dev_name[100];
-
-static void
-general_open(args, name, from_tty)
- char *args;
- char *name;
- int from_tty;
-{
- if (args == NULL)
- error ("Use `target %s DEVICE-NAME' to use a serial port, or \n\
-`target %s HOST-NAME:PORT-NUMBER' to use a network connection.", name, name);
-
- target_preopen(from_tty);
-
- monitor_close(0);
-
- monitor_desc = SERIAL_OPEN(dev_name);
-
- if (monitor_desc == NULL)
- perror_with_name(dev_name);
-
- /* The baud rate was specified when GDB was started. */
- if (baud_rate)
- {
- int rate;
-
- if (sscanf (baud_rate, "%d", &rate) == 1)
- if (SERIAL_SETBAUDRATE (monitor_desc, rate))
- {
- SERIAL_CLOSE (monitor_desc);
- perror_with_name (name);
- }
- }
-
- SERIAL_RAW(monitor_desc);
-
-#if defined (LOG_FILE)
- log_file = fopen (LOG_FILE, "w");
- if (log_file == NULL)
- perror_with_name (LOG_FILE);
-#endif
-
- /* Hello? Are you there? */
- printf_monitor("\r"); /* CR wakes up monitor */
-
- expect_prompt(1);
-
- if (from_tty)
- printf("Remote %s connected to %s\n", target_shortname,
- dev_name);
-}
-
-static void
-rom68k_open(args, from_tty)
- char *args;
- int from_tty;
-{
- push_target(&rom68k_ops);
- push_monitor (&rom68k_cmds);
-
- general_open (args, "rom68k", from_tty);
-}
-
-static void
-mon68_open(args, from_tty)
- char *args;
- int from_tty;
-{
- push_target(&mon68_ops);
- push_monitor (&mon68_cmds);
-
- general_open (args, "mon68", from_tty);
-}
-
-static void
-bug_open(args, from_tty)
- char *args;
- int from_tty;
-{
- push_target(&monitor_bug_ops);
- push_monitor (&bug_cmds);
-
- general_open (args, "bug", from_tty);
-}
-
-/*
- * _close -- Close out all files and local state before this target loses control.
- */
-
-static void
-monitor_close (quitting)
- int quitting;
-{
- SERIAL_CLOSE(monitor_desc);
- monitor_desc = NULL;
-
-#if defined (LOG_FILE)
- if (log_file) {
- if (ferror(log_file))
- fprintf(stderr, "Error writing log file.\n");
- if (fclose(log_file) != 0)
- fprintf(stderr, "Error closing log file.\n");
- }
-#endif
-}
-
-/* Terminate the open connection to the remote debugger.
- Use this when you want to detach and do something else
- with your gdb. */
-static void
-monitor_detach (from_tty)
- int from_tty;
-{
- pop_target(); /* calls monitor_close to do the real work */
- if (from_tty)
- printf ("Ending remote %s debugging\n", target_shortname);
-}
-
-/*
- * _resume -- Tell the remote machine to resume.
- */
-static void
-monitor_resume (pid, step, sig)
- int pid, step, sig;
-{
-#ifdef LOG_FILE
- fprintf (log_file, "\nIn Resume (step=%d, sig=%d)\n", step, sig);
-#endif
-
- if (step)
- {
- printf_monitor (STEP_CMD);
- /* wait for the echo. */
- expect (STEP_CMD, 1);
- }
- else
- {
- printf_monitor (GO_CMD);
- /* swallow the echo. */
- expect (GO_CMD, 1);
- }
-}
-
-/*
- * _wait -- Wait until the remote machine stops, then return,
- * storing status in status just as `wait' would.
- */
-
-static int
-monitor_wait (status)
- WAITTYPE *status;
-{
- int old_timeout = timeout;
-#ifdef LOG_FILE
- fputs ("\nIn wait ()", log_file);
-#endif
-
- WSETEXIT ((*status), 0);
-
- timeout = 0; /* Don't time out -- user program is running. */
-
- expect_prompt(0); /* Wait for prompt, outputting extraneous text */
-
- WSETSTOP ((*status), SIGTRAP);
-
- timeout = old_timeout;
-
- return 0;
-}
-
-/* Return the name of register number regno in the form input and output by
- monitor. Currently, register_names just happens to contain exactly what
- monitor wants. Lets take advantage of that just as long as possible! */
-
-static char *
-get_reg_name (regno)
- int regno;
-{
- static char buf[50];
- const char *p;
- char *b;
-
- b = buf;
-
- if (regno < 0)
- return ("");
- for (p = reg_names[regno]; *p; p++)
- *b++ = toupper(*p);
- *b = '\000';
-
- return buf;
-}
-
-/* read the remote registers into the block regs. */
-
-static void
-monitor_fetch_registers ()
-{
- int regno;
-
- /* yeah yeah, i know this is horribly inefficient. but it isn't done
- very often... i'll clean it up later. */
-
- for (regno = 0; regno <= PC_REGNUM; regno++)
- monitor_fetch_register(regno);
-}
-
-/* Fetch register REGNO, or all registers if REGNO is -1.
- Returns errno value. */
-static void
-monitor_fetch_register (regno)
- int regno;
-{
- int val, j;
-
-#ifdef LOG_FILE
- fprintf (log_file, "\nIn Fetch Register (reg=%s)\n", get_reg_name (regno));
- fflush (log_file);
-#endif
-
- if (regno < 0)
- {
- monitor_fetch_registers ();
- }
- else
- {
- char *name = get_reg_name (regno);
- printf_monitor (GET_REG, name);
- expect (name, 1);
- expect (REG_DELIM, 1);
- if (strcasecmp (name, "SR") == 0)
- {
- val = 0;
- for (j = 0; j < 4; j++)
- val = (val << 4) + get_hex_digit (j == 0);
- supply_register (regno, (char *) &val);
- }
- else
- {
- get_hex_regs (1, regno);
- }
- if (CMD_END)
- {
- expect (CMD_DELIM);
- printf_monitor (CMD_END);
- }
- expect_prompt (1);
- }
- return;
-}
-
-/* Store the remote registers from the contents of the block REGS. */
-
-static void
-monitor_store_registers ()
-{
- int regno;
-
- for (regno = 0; regno <= PC_REGNUM; regno++)
- monitor_store_register(regno);
-
- registers_changed ();
-}
-
-/* Store register REGNO, or all if REGNO == 0.
- return errno value. */
-static void
-monitor_store_register (regno)
- int regno;
-{
-#ifdef LOG_FILE
- fprintf (log_file, "\nIn Store_register (regno=%d)\n", regno);
-#endif
- if (regno == -1)
- monitor_store_registers ();
- else
- {
- if (kiodebug)
- printf ("Setting register %s to 0x%x\n", get_reg_name (regno), read_register (regno));
-
- printf_monitor (SET_REG, get_reg_name (regno),
- read_register (regno));
-
- expect_prompt (1);
- }
-}
-
-/* Get ready to modify the registers array. On machines which store
- individual registers, this doesn't need to do anything. On machines
- which store all the registers in one fell swoop, this makes sure
- that registers contains all the registers from the program being
- debugged. */
-
-static void
-monitor_prepare_to_store ()
-{
- /* Do nothing, since we can store individual regs */
-}
-
-static void
-monitor_files_info ()
-{
- printf ("\tAttached to %s at %d baud.\n",
- dev_name, baudrate);
-}
-
-/* Copy LEN bytes of data from debugger memory at MYADDR
- to inferior's memory at MEMADDR. Returns length moved. */
-static int
-monitor_write_inferior_memory (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- unsigned char *myaddr;
- int len;
-{
- int i;
- char buf[10];
-
-#ifdef LOG_FILE
- fprintf (log_file, "\nIn Write_inferior_memory (memaddr=%x, len=%d)\n", memaddr, len);
-#endif
- for (i = 0; i < len; i++)
- {
- printf_monitor (MEM_SET_CMD, memaddr + i);
- expect (sprintf (buf, MEM_PROMPT, memaddr + i), 1);
- expect (CMD_DELIM);
- printf_monitor ("%x", myaddr[i]);
- if (kiodebug)
- printf ("\nSet 0x%x to 0x%x\n", memaddr + i, myaddr[i]);
- if (CMD_END)
- {
-/*** expect (sprintf (buf, MEM_PROMPT, memaddr + i +1), 1);
- expect (CMD_DELIM); ***/
- printf_monitor (CMD_END);
- }
- expect_prompt (1);
- }
- return len;
-}
-
-/* Read LEN bytes from inferior memory at MEMADDR. Put the result
- at debugger address MYADDR. Returns length moved. */
-static int
-monitor_read_inferior_memory(memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
-{
- int i, j;
- char buf[20];
-
- /* Number of bytes read so far. */
- int count;
-
- /* Starting address of this pass. */
- unsigned long startaddr;
-
- /* Number of bytes to read in this pass. */
- int len_this_pass;
-
-#ifdef LOG_FILE
- fprintf (log_file, "\nIn Read_inferior_memory (memaddr=%x, len=%d)\n", memaddr, len);
-#endif
-
- /* Note that this code works correctly if startaddr is just less
- than UINT_MAX (well, really CORE_ADDR_MAX if there was such a
- thing). That is, something like
- monitor_read_bytes (CORE_ADDR_MAX - 4, foo, 4)
- works--it never adds len To memaddr and gets 0. */
- /* However, something like
- monitor_read_bytes (CORE_ADDR_MAX - 3, foo, 4)
- doesn't need to work. Detect it and give up if there's an attempt
- to do that. */
- if (((memaddr - 1) + len) < memaddr) {
- errno = EIO;
- return 0;
- }
-
- startaddr = memaddr;
- count = 0;
- while (count < len)
- {
- len_this_pass = 16;
- if ((startaddr % 16) != 0)
- len_this_pass -= startaddr % 16;
- if (len_this_pass > (len - count))
- len_this_pass = (len - count);
- if (kiodebug)
- printf ("\nDisplay %d bytes at %x\n", len_this_pass, startaddr);
-
- for (i = 0; i < len_this_pass; i++)
- {
- printf_monitor (MEM_DIS_CMD, startaddr);
- expect (sprintf(buf, MEM_PROMPT, startaddr), 1);
- get_hex_byte (&myaddr[count++]);
- if (kiodebug)
- printf ("\nRead a 0x%x from 0x%x\n", myaddr[count-1], startaddr);
- if (CMD_END)
- {
- expect (CMD_DELIM);
- printf_monitor (CMD_END);
- }
- expect_prompt (1);
- startaddr += 1;
- }
- }
- return len;
-}
-
-/* FIXME-someday! merge these two. */
-static int
-monitor_xfer_inferior_memory (memaddr, myaddr, len, write, target)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
- struct target_ops *target; /* ignored */
-{
- if (write)
- return monitor_write_inferior_memory (memaddr, myaddr, len);
- else
- return monitor_read_inferior_memory (memaddr, myaddr, len);
-}
-
-static void
-monitor_kill (args, from_tty)
- char *args;
- int from_tty;
-{
- return; /* ignore attempts to kill target system */
-}
-
-/* Clean up when a program exits.
- The program actually lives on in the remote processor's RAM, and may be
- run again without a download. Don't leave it full of breakpoint
- instructions. */
-
-static void
-monitor_mourn_inferior ()
-{
- remove_breakpoints ();
- generic_mourn_inferior (); /* Do all the proper things now */
-}
-
-#define MAX_MONITOR_BREAKPOINTS 16
-
-extern int memory_breakpoint_size;
-static CORE_ADDR breakaddr[MAX_MONITOR_BREAKPOINTS] = {0};
-
-static int
-monitor_insert_breakpoint (addr, shadow)
- CORE_ADDR addr;
- char *shadow;
-{
- int i;
-
-#ifdef LOG_FILE
- fprintf (log_file, "\nIn Insert_breakpoint (addr=%x)\n", addr);
-#endif
- for (i = 0; i <= MAX_MONITOR_BREAKPOINTS; i++)
- if (breakaddr[i] == 0)
- {
- breakaddr[i] = addr;
- if (kiodebug)
- printf ("Breakpoint at %x\n", addr);
- monitor_read_inferior_memory(addr, shadow, memory_breakpoint_size);
- printf_monitor(SET_BREAK_CMD, addr);
- expect_prompt(1);
- return 0;
- }
-
- fprintf(stderr, "Too many breakpoints (> 16) for monitor\n");
- return 1;
-}
-
-/*
- * _remove_breakpoint -- Tell the monitor to remove a breakpoint
- */
-static int
-monitor_remove_breakpoint (addr, shadow)
- CORE_ADDR addr;
- char *shadow;
-{
- int i;
-
-#ifdef LOG_FILE
- fprintf (log_file, "\nIn Remove_breakpoint (addr=%x)\n", addr);
-#endif
- for (i = 0; i < MAX_MONITOR_BREAKPOINTS; i++)
- if (breakaddr[i] == addr)
- {
- breakaddr[i] = 0;
- /* some monitors remove breakpoints based on the address */
- if (strcasecmp (target_shortname, "bug") == 0)
- printf_monitor(CLR_BREAK_CMD, addr);
- else
- printf_monitor(CLR_BREAK_CMD, i);
- expect_prompt(1);
- return 0;
- }
-
- fprintf(stderr, "Can't find breakpoint associated with 0x%x\n", addr);
- return 1;
-}
-
-/* Load a file. This is usually an srecord, which is ascii. No
- protocol, just sent line by line. */
-
-#define DOWNLOAD_LINE_SIZE 100
-static void
-monitor_load (arg)
- char *arg;
-{
- FILE *download;
- char buf[DOWNLOAD_LINE_SIZE];
- int i, bytes_read;
-
- if (kiodebug)
- printf ("Loading %s to monitor\n", arg);
-
- download = fopen (arg, "r");
- if (download == NULL)
- {
- error (sprintf (buf, "%s Does not exist", arg));
- return;
- }
-
- printf_monitor (LOAD_CMD);
-/* expect ("Waiting for S-records from host... ", 1); */
-
- while (!feof (download))
- {
- bytes_read = fread (buf, sizeof (char), DOWNLOAD_LINE_SIZE, download);
- if (hashmark)
- {
- putchar ('.');
- fflush (stdout);
- }
-
- if (SERIAL_WRITE(monitor_desc, buf, bytes_read)) {
- fprintf(stderr, "SERIAL_WRITE failed: (while downloading) %s\n", safe_strerror(errno));
- break;
- }
- i = 0;
- while (i++ <=200000) {} ; /* Ugly HACK, probably needs flow control */
- if (bytes_read < DOWNLOAD_LINE_SIZE)
- {
- if (!feof (download))
- error ("Only read %d bytes\n", bytes_read);
- break;
- }
- }
-
- if (hashmark)
- {
- putchar ('\n');
- }
- if (!feof (download))
- error ("Never got EOF while downloading");
- fclose (download);
-}
-
-/* Put a command string, in args, out to MONITOR. Output from MONITOR is placed
- on the users terminal until the prompt is seen. */
-
-static void
-monitor_command (args, fromtty)
- char *args;
- int fromtty;
-{
-#ifdef LOG_FILE
- fprintf (log_file, "\nIn command (args=%s)\n", args);
-#endif
- if (monitor_desc == NULL)
- error("monitor target not open.");
-
- if (!args)
- error("Missing command.");
-
- printf_monitor("%s\r", args);
- expect_prompt(0);
-}
-
-#if 0
-
-/* Connect the user directly to MONITOR. This command acts just like the
- 'cu' or 'tip' command. Use <CR>~. or <CR>~^D to break out. */
-
-static struct ttystate ttystate;
-
-static void
-cleanup_tty()
-{ printf("\r\n[Exiting connect mode]\r\n");
- /*SERIAL_RESTORE(0, &ttystate);*/
-}
-
-static void
-connect_command (args, fromtty)
- char *args;
- int fromtty;
-{
- fd_set readfds;
- int numfds;
- int c;
- char cur_esc = 0;
-
- dont_repeat();
-
- if (monitor_desc == NULL)
- error("monitor target not open.");
-
- if (args)
- fprintf("This command takes no args. They have been ignored.\n");
-
- printf("[Entering connect mode. Use ~. or ~^D to escape]\n");
-
- serial_raw(0, &ttystate);
-
- make_cleanup(cleanup_tty, 0);
-
- FD_ZERO(&readfds);
-
- while (1)
- {
- do
- {
- FD_SET(0, &readfds);
- FD_SET(monitor_desc, &readfds);
- numfds = select(sizeof(readfds)*8, &readfds, 0, 0, 0);
- }
- while (numfds == 0);
-
- if (numfds < 0)
- perror_with_name("select");
-
- if (FD_ISSET(0, &readfds))
- { /* tty input, send to monitor */
- c = getchar();
- if (c < 0)
- perror_with_name("connect");
-
- printf_monitor("%c", c);
- switch (cur_esc)
- {
- case 0:
- if (c == '\r')
- cur_esc = c;
- break;
- case '\r':
- if (c == '~')
- cur_esc = c;
- else
- cur_esc = 0;
- break;
- case '~':
- if (c == '.' || c == '\004')
- return;
- else
- cur_esc = 0;
- }
- }
-
- if (FD_ISSET(monitor_desc, &readfds))
- {
- while (1)
- {
- c = readchar(0);
- if (c < 0)
- break;
- putchar(c);
- }
- fflush(stdout);
- }
- }
-}
-#endif
-
-/*
- * 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.
- */
-struct monitor_ops rom68k_cmds = {
- "go \r", /* execute or usually GO command */
- "go \r", /* continue command */
- "st \r", /* single step */
- "db %x\r", /* set a breakpoint */
- "cb %x\r", /* clear a breakpoint */
- "pm %x\r", /* set memory to a value */
- "pm %x\r", /* display memory */
- "-%08X ", /* prompt memory commands use */
- "pr %s %x\r", /* set a register */
- ": ", /* delimiter between registers */
- "pr %s\r", /* read a register */
- "dc \r", /* download command */
- "ROM68K :->", /* monitor command prompt */
- "=", /* end-of-command delimitor */
- ".\r" /* optional command terminator */
-};
-
-struct monitor_ops bug_cmds = {
- "go \r", /* execute or usually GO command */
- "go \r", /* continue command */
- "gn \r", /* single step */
- "br %x\r", /* set a breakpoint */
- "nobr %x\r", /* clear a breakpoint */
- "mm %x\r", /* set memory to a value */
- "mm %x\r", /* display memory */
- "%08X", /* prompt memory commands use */
- "rs %s %x\r", /* set a register */
- "=", /* delimiter between registers */
- "rm %s\r", /* read a register */
- "lo 0\r", /* download command */
- "Bug>", /* monitor command prompt */
- "? ", /* end-of-command delimitor */
- ".\r" /* optional command terminator */
-};
-
-/* Define the target subroutine names */
-struct monitor_ops mon68_cmds = {
- "", /* execute or usually GO command */
- "", /* continue command */
- "", /* single step */
- "", /* set a breakpoint */
- "", /* clear a breakpoint */
- "", /* set memory to a value */
- "", /* display memory */
- "", /* set a register */
- "", /* delimiter between registers */
- "", /* read a register */
- "", /* download command */
- ">", /* monitor command prompt */
- "", /* end-of-command delimitor */
- "" /* optional command terminator */
-};
-
-struct target_ops rom68k_ops = {
- "rom68k",
- "Integrated System's ROM68K remote debug monitor",
- "Use a remote computer running the ROM68K debug monitor.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya).",
- rom68k_open,
- monitor_close,
- 0,
- monitor_detach,
- monitor_resume,
- monitor_wait,
- monitor_fetch_register,
- monitor_store_register,
- monitor_prepare_to_store,
- monitor_xfer_inferior_memory,
- monitor_files_info,
- monitor_insert_breakpoint,
- monitor_remove_breakpoint, /* Breakpoints */
- 0,
- 0,
- 0,
- 0,
- 0, /* Terminal handling */
- monitor_kill,
- monitor_load, /* load */
- 0, /* lookup_symbol */
- monitor_create_inferior,
- monitor_mourn_inferior,
- 0, /* can_run */
- 0, /* notice_signals */
- process_stratum,
- 0, /* next */
- 1,
- 1,
- 1,
- 1,
- 1, /* all mem, mem, stack, regs, exec */
- 0,
- 0, /* Section pointers */
- OPS_MAGIC, /* Always the last thing */
-};
-
-struct target_ops monitor_bug_ops = {
- "bug",
- "Motorola's BUG remote serial debug monitor",
- "Use a remote computer running Motorola's BUG debug monitor.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya).",
- bug_open,
- monitor_close,
- 0,
- monitor_detach,
- monitor_resume,
- monitor_wait,
- monitor_fetch_register,
- monitor_store_register,
- monitor_prepare_to_store,
- monitor_xfer_inferior_memory,
- monitor_files_info,
- monitor_insert_breakpoint,
- monitor_remove_breakpoint, /* Breakpoints */
- 0,
- 0,
- 0,
- 0,
- 0, /* Terminal handling */
- monitor_kill,
- monitor_load, /* load */
- 0, /* lookup_symbol */
- monitor_create_inferior,
- monitor_mourn_inferior,
- 0, /* can_run */
- 0, /* notice_signals */
- process_stratum,
- 0, /* next */
- 1,
- 1,
- 1,
- 1,
- 1, /* all mem, mem, stack, regs, exec */
- 0,
- 0, /* Section pointers */
- OPS_MAGIC, /* Always the last thing */
-};
-
-struct target_ops mon68_ops = {
- "mon68",
- "Intermetric's MON68 remote serial debug monitor",
- "Use a remote computer running the MON68 debug monitor.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya).",
- mon68_open,
- monitor_close,
- 0,
- monitor_detach,
- monitor_resume,
- monitor_wait,
- monitor_fetch_register,
- monitor_store_register,
- monitor_prepare_to_store,
- monitor_xfer_inferior_memory,
- monitor_files_info,
- monitor_insert_breakpoint,
- monitor_remove_breakpoint, /* Breakpoints */
- 0,
- 0,
- 0,
- 0,
- 0, /* Terminal handling */
- monitor_kill,
- monitor_load, /* load */
- 0, /* lookup_symbol */
- monitor_create_inferior,
- monitor_mourn_inferior,
- 0, /* can_run */
- 0, /* notice_signals */
- process_stratum,
- 0, /* next */
- 1,
- 1,
- 1,
- 1,
- 1, /* all mem, mem, stack, regs, exec */
- 0,
- 0, /* Section pointers */
- OPS_MAGIC, /* Always the last thing */
-};
-
-void
-_initialize_remote_monitors ()
-{
- add_show_from_set (
- add_set_cmd ("remotedebug", no_class, var_boolean,
- (char *)&kiodebug,
- "Set debugging of I/O to a serial based Monitor.\n\
-When enabled, debugging info is displayed.",
- &setlist),
- &showlist);
- add_show_from_set (
- add_set_cmd ("hash", no_class, var_boolean,
- (char *)&hashmark,
- "Set display of activity while downloading a file.\n\
-When enabled, a period \'.\' is displayed.",
- &setlist),
- &showlist);
-
- /* generic monitor command */
- add_com ("monitor <command>", class_obscure, monitor_command,
- "Send a command to the debug monitor.");
-#if 0
- add_com ("connect", class_obscure, connect_command,
- "Connect the terminal directly up to a serial based command monitor.\n\
-Use <CR>~. or <CR>~^D to break out.");
-#endif
-
- add_target (&rom68k_ops);
-/* add_target (&mon68_ops); */
- add_target (&monitor_bug_ops);
-}
projects / thirdparty / binutils-gdb.git / commitdiff
