diff options
| -rw-r--r-- | gdb/.Sanitize | 2 | ||||
| -rw-r--r-- | gdb/ChangeLog | 12 | ||||
| -rw-r--r-- | gdb/Makefile.in | 4 | ||||
| -rw-r--r-- | gdb/gdbserver/.Sanitize | 10 | ||||
| -rw-r--r-- | gdb/gdbserver/Makefile.in | 284 | ||||
| -rw-r--r-- | gdb/gdbserver/low-lynx.c (renamed from gdb/gdbserver/remote-inflow.c) | 0 | ||||
| -rw-r--r-- | gdb/gdbserver/low-sparc.c (renamed from gdb/gdbserver/remote-inflow-sparc.c) | 0 | ||||
| -rw-r--r-- | gdb/gdbserver/remote-server.c | 115 | ||||
| -rw-r--r-- | gdb/gdbserver/utils.c (renamed from gdb/gdbserver/remote-gutils.c) | 0 | ||||
| -rw-r--r-- | gdb/remote-mon.c | 1209 | ||||
| -rw-r--r-- | gdb/remote-monitor.c | 1209 |
11 files changed, 1512 insertions, 1333 deletions
diff --git a/gdb/.Sanitize b/gdb/.Sanitize index 95fa786..6e6697f 100644 --- a/gdb/.Sanitize +++ b/gdb/.Sanitize @@ -188,7 +188,7 @@ remote-es.c remote-hms.c remote-mips.c remote-mm.c -remote-monitor.c +remote-mon.c remote-nindy.c remote-sim.c remote-st.c diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 8b54909..0e25efe 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,15 @@ +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 diff --git a/gdb/Makefile.in b/gdb/Makefile.in index 407abd4..ee3e02a 100644 --- a/gdb/Makefile.in +++ b/gdb/Makefile.in @@ -812,7 +812,7 @@ ALLDEPFILES = 29k-share/udi/udip2soc.c 29k-share/udi/udr.c \ 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 \ @@ -1212,7 +1212,7 @@ remote-mips.o: remote-mips.c $(wait_h) $(defs_h) $(gdbcmd_h) \ 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) \ diff --git a/gdb/gdbserver/.Sanitize b/gdb/gdbserver/.Sanitize index ab914bf..db910a5 100644 --- a/gdb/gdbserver/.Sanitize +++ b/gdb/gdbserver/.Sanitize @@ -26,17 +26,15 @@ Things-to-keep: 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. diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in new file mode 100644 index 0000000..9cd7990 --- /dev/null +++ b/gdb/gdbserver/Makefile.in @@ -0,0 +1,284 @@ +#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". diff --git a/gdb/gdbserver/remote-inflow.c b/gdb/gdbserver/low-lynx.c index 44070c5..44070c5 100644 --- a/gdb/gdbserver/remote-inflow.c +++ b/gdb/gdbserver/low-lynx.c diff --git a/gdb/gdbserver/remote-inflow-sparc.c b/gdb/gdbserver/low-sparc.c index eb578ee..eb578ee 100644 --- a/gdb/gdbserver/remote-inflow-sparc.c +++ b/gdb/gdbserver/low-sparc.c diff --git a/gdb/gdbserver/remote-server.c b/gdb/gdbserver/remote-server.c deleted file mode 100644 index ca8412e..0000000 --- a/gdb/gdbserver/remote-server.c +++ /dev/null @@ -1,115 +0,0 @@ -/* 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 (); - } -} diff --git a/gdb/gdbserver/remote-gutils.c b/gdb/gdbserver/utils.c index de8226b..de8226b 100644 --- a/gdb/gdbserver/remote-gutils.c +++ b/gdb/gdbserver/utils.c diff --git a/gdb/remote-mon.c b/gdb/remote-mon.c new file mode 100644 index 0000000..d9367a8 --- /dev/null +++ b/gdb/remote-mon.c @@ -0,0 +1,1209 @@ +/* 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); +} diff --git a/gdb/remote-monitor.c b/gdb/remote-monitor.c index d9367a8..e69de29 100644 --- a/gdb/remote-monitor.c +++ b/gdb/remote-monitor.c @@ -1,1209 +0,0 @@ -/* 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); -} |