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Changes to support GDB running on DOS using GO32 and H8 support

Browse Source 
* defs.h: if xm.h doesn't define FOPEN_RB, include "fopen-same.h",
	allowing hosts with different text and binary file formats to
	work.
	* coffread.c (read_coff_symtab): changed calling convention and
	operation - now it opens its own file with FOPEN_RB rather than
	duping and fdopening the provided handle.
	* dbxread.c, cplus-dem.c: #include mangling.
	* exec.c: If O_BINARY isn't defined, set it to 0, call openp for
	binary files oring in the right bit.
	* utils.c, terminal.h, inflow.c: hackery because dos doesn't have terminals.
	* remote-hms.c: cleanup to use the new remote serial stuff
	* serial.h, ser-termios.c, ser-go32.c: newfiles to provide host
	independent remote terminal I/O.
	* remote.c: if DONT_USE_REMOTE is defined, then don't use it.
	* source.c (openp): fix off by one problem removing / - can now
	open a source file in the root directory with DOS.
	* values.c (value_as_pointer): remove bogus address bits from
	long. (unpack_long): unpack into unsigned long/short if pointer.
This commit is contained in:
Steve Chamberlain 1992-05-13 01:12:18 +00:00
parent bbbd93b8e9
commit ae0ea72ee2
12 changed files with 861 additions and 405 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
gdb/.Sanitize
View File

@ -90,6 +90,7 @@ gdbcmd.h
gdbcore.h
gdbtypes.c
gdbtypes.h
go32-xdep.c
gould-pinsn.c
gould-xdep.c
h8300-tdep.c
@ -171,6 +172,9 @@ sparc-xdep.c
stack.c
standalone.c
stuff.c
serial.h
ser-termios.c
ser-go32.c
sun3-xdep.c
sun386-xdep.c
symfile.c
@ -246,7 +250,6 @@ xcoffread.c
xcoffsolib.c
xcoffsolib.h
xm-3b1.h
xm-m88k.h
xm-altos.h
xm-amix.h
xm-apollo68v.h
@ -254,6 +257,7 @@ xm-arm.h
xm-bigmips.h
xm-convex.h
xm-delta88.h
xm-go32.h
xm-hp300bsd.h
xm-hp300hpux.h
xm-i386mach.h
@ -265,6 +269,7 @@ xm-irix3.h
xm-irix4.h
xm-isi.h
xm-m68k.h
xm-m88k.h
xm-merlin.h
xm-mips.h
xm-news.h

23
gdb/ChangeLog
View File

@ -1,3 +1,26 @@
Tue May 12 17:44:39 1992 Steve Chamberlain (sac@thepub.cygnus.com)
Changes to support GDB running on DOS using GO32 and H8 support
* defs.h: if xm.h doesn't define FOPEN_RB, include "fopen-same.h",
allowing hosts with different text and binary file formats to
work.
* coffread.c (read_coff_symtab): changed calling convention and
operation - now it opens its own file with FOPEN_RB rather than
duping and fdopening the provided handle.
* dbxread.c, cplus-dem.c: #include mangling.
* exec.c: If O_BINARY isn't defined, set it to 0, call openp for
binary files oring in the right bit.
* utils.c, terminal.h, inflow.c: hackery because dos doesn't have terminals.
* remote-hms.c: cleanup to use the new remote serial stuff
* serial.h, ser-termios.c, ser-go32.c: newfiles to provide host
independent remote terminal I/O.
* remote.c: if DONT_USE_REMOTE not defined, then don't use it.
* source.c (openp): fix off by one problem removing / - can now
open a source file in the root directory with DOS.
* values.c (value_as_pointer): remove bogus address bits from
long. (unpack_long): unpack into unsigned long/short if pointer.
Tue May 12 14:15:48 1992 Stu Grossman (grossman at cygnus.com)
* infrun.c (child_attach): Don't allow gdb to attach to itself.

1
gdb/configure.in
View File

@ -102,6 +102,7 @@ i386)
ncr) gdb_host=ncr3000 ;;
*)
case "${host_os}" in
go32) gdb_host=go32 ;;
sysv32) gdb_host=i386v32 ;;
sysv4*) gdb_host=i386v4 ;;
sysv*) gdb_host=i386v ;;

6
gdb/cplus-dem.c
View File

@ -30,13 +30,7 @@
#include "demangle.h"
#include <ctype.h>
#ifdef USG
#include <memory.h>
#include <string.h>
#else
#include <strings.h>
#endif
#if !defined (GNU_DEMANGLING) && !defined (ARM_DEMANGLING)
# define GNU_DEMANGLING 1

43
gdb/go32-xdep.c Normal file
View File

@ -0,0 +1,43 @@
/* Host-dependent code for dos running GO32 for GDB, the GNU debugger.
Copyright 1992
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 <stdio.h>
static void uerror(char *s)
{
fprintf(stderr, "Fatal: %s!\n");
exit(1);
}
fork(){uerror("attempt to call fork()");}
vfork(){uerror("attempt to call vfork()");}
wait(){uerror("attempt to call wait()");}
execlp(){uerror("attempt to call execlp()");}
kill_inferior_fast(){uerror("attempt to call kill_inferior_fast()");}
kill_inferior(){uerror("attempt to call kill_inferior()");}
re_comp(){uerror("attempt to call re_comp()");}
re_exec(){uerror("attempt to call re_exec()");}
call_ptrace(){uerror("attempt to call call_ptrace()");}
child_resume(){uerror("attempt to call child_resume()");}
fetch_inferior_registers(){uerror("attempt to call fetch_inferior_registers()");}
store_inferior_registers(){uerror("attempt to call store_inferior_registers()");}
child_xfer_memory(){uerror("attempt to call child_xfer_memory()");}
fetch_core_registers(){uerror("attempt to call fetch_core_registers()");}

499
gdb/remote-hms.c
View File

@ -234,75 +234,37 @@ dcache_init ()
***********************************************************************/
static int timeout = 2;
static char *dev_name = "/dev/ttya";
static CONST char *dev_name;
/* Descriptor for I/O to remote machine. Initialize it to -1 so that
hms_open knows that we don't have a file open when the program
starts. */
int hms_desc = -1;
#define OPEN(x) ((x) >= 0)
void hms_open();
int is_open = 0;
int check_open()
{
if (!is_open)
{
error("remote device not open");
}
}
#define ON 1
#define OFF 0
static void
rawmode(desc, turnon)
int desc;
int turnon;
{
TERMINAL sg;
if (desc < 0)
return;
ioctl (desc, TIOCGETP, &sg);
if (turnon) {
#ifdef HAVE_TERMIO
sg.c_lflag &= ~(ICANON);
#else
sg.sg_flags |= RAW;
#endif
} else {
#ifdef HAVE_TERMIO
sg.c_lflag |= ICANON;
#else
sg.sg_flags &= ~(RAW);
#endif
}
ioctl (desc, TIOCSETP, &sg);
}
/* Read a character from the remote system, doing all the fancy
timeout stuff. */
static int
readchar ()
{
char buf;
int ok;
int buf;
buf = serial_timedreadchar(timeout, &ok);
buf = '\0';
#ifdef HAVE_TERMIO
/* termio does the timeout for us. */
read (hms_desc, &buf, 1);
#else
alarm (timeout);
if (read (hms_desc, &buf, 1) < 0)
{
if (errno == EINTR)
error ("Timeout reading from remote system.");
else
perror_with_name ("remote");
}
alarm (0);
#endif
if (buf == '\0')
if (!ok)
error ("Timeout reading from remote system.");
if (!quiet)
@ -314,26 +276,15 @@ readchar ()
static int
readchar_nofail ()
{
char buf;
int ok;
int buf;
buf = serial_timedreadchar(timeout, &ok);
if (!ok) buf = 0;
if (!quiet)
printf("%c",buf);
buf = '\0';
#ifdef HAVE_TERMIO
/* termio does the timeout for us. */
read (hms_desc, &buf, 1);
#else
alarm (timeout);
if (read (hms_desc, &buf, 1) < 0)
{
return 0;
}
alarm (0);
#endif
if (buf == '\0')
{
return 0;
}
return buf & 0x7f;
}
/* Keep discarding input from the remote system, until STRING is found.
@ -379,7 +330,6 @@ expect (string)
static void
expect_prompt ()
{
expect ("HMS>");
}
@ -435,21 +385,7 @@ get_hex_word()
return val;
}
/* Called when SIGALRM signal sent due to alarm() timeout. */
#ifndef HAVE_TERMIO
#ifndef __STDC__
# ifndef volatile
# define volatile /**/
# endif
#endif
volatile int n_alarms;
void
hms_timer ()
{
n_alarms++;
}
#endif
/* Number of SIGTRAPs we need to simulate. That is, the next
@ -466,12 +402,7 @@ int from_tty;
}
static check_open()
{
if (!OPEN(hms_desc)) {
hms_open("",0);
}
}
/*
* Download a file specified in 'args', to the hms.
@ -486,6 +417,7 @@ int fromtty;
int n;
char buffer[1024];
DENTER("hms_load()");
check_open();
@ -512,9 +444,9 @@ int fromtty;
int i;
#define DELTA 2048
#define DELTA 1024
char *buffer = xmalloc(DELTA);
printf_filtered("%s: %4x .. %4x ",s->name, s->vma, s->vma + s->_raw_size);
printf_filtered("%s\t: 0x%4x .. 0x%4x ",s->name, s->vma, s->vma + s->_raw_size);
for (i = 0; i < s->_raw_size; i+= DELTA)
{
int delta = DELTA;
@ -531,7 +463,9 @@ int fromtty;
}
s = s->next;
}
sprintf(buffer, "r PC=%x", abfd->start_address);
hms_write_cr(buffer);
expect_prompt();
DEXIT("hms_load()");
}
@ -545,7 +479,7 @@ hms_create_inferior (execfile, args, env)
char **env;
{
int entry_pt;
char buffer[100];
DENTER("hms_create_inferior()");
if (args && *args)
@ -557,62 +491,20 @@ hms_create_inferior (execfile, args, env)
entry_pt = (int) bfd_get_start_address (exec_bfd);
check_open();
if (OPEN(hms_desc))
{
char buffer[100];
hms_kill(NULL,NULL);
hms_clear_breakpoints();
init_wait_for_inferior ();
/* Clear the input because what the hms sends back is different
* depending on whether it was running or not.
*/
/*sprintf(buffer,"g %x", entry_pt);
hms_write_cr(buffer);
*/
hms_write_cr("");
hms_write_cr("");
expect_prompt();
insert_breakpoints (); /* Needed to get correct instruction in cache */
proceed(entry_pt, -1, 0);
}
DEXIT("hms_create_inferior()");
}
/* Translate baud rates from integers to damn B_codes. Unix should
have outgrown this crap years ago, but even POSIX wouldn't buck it. */
#ifndef B19200
#define B19200 EXTA
#endif
#ifndef B38400
#define B38400 EXTB
#endif
static struct {int rate, damn_b;} baudtab[] = {
{9600, B9600},
{19200, B19200},
{300, B300},
{1200, B1200},
{2400, B2400},
{4800, B4800},
{-1, -1},
};
static int damn_b (rate)
int rate;
{
int i;
for (i = 0; baudtab[i].rate != -1; i++)
if (rate == baudtab[i].rate) return baudtab[i].damn_b;
return B19200;
}
/* Open a connection to a remote debugger.
NAME is the filename used for communication, then a space,
@ -661,65 +553,46 @@ static int baudrate = 9600;
static int
is_baudrate_right()
{
int ok;
/* Put this port into NORMAL mode, send the 'normal' character */
hms_write("\001", 1); /* Control A */
hms_write("\r", 1); /* Cr */
while ( readchar_nofail()) /* Skip noise we put there */
;
while (1)
{
serial_timedreadchar(timeout, &ok);
if (!ok) break;
}
hms_write("r",1);
hms_write("r");
if (readchar_nofail() == 'r')
return 1;
/* Not the right baudrate, or the board's not on */
return 0;
}
static void
set_rate()
{
TERMINAL sg;
ioctl (hms_desc, TIOCGETP, &sg);
#ifdef HAVE_TERMIO
sg.c_cc[VMIN] = 0; /* read with timeout. */
sg.c_cc[VTIME] = timeout * 10;
sg.c_lflag &= ~(ICANON | ECHO);
sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate);
#else
sg.sg_ispeed = damn_b (baudrate);
sg.sg_ospeed = damn_b (baudrate);
sg.sg_flags |= RAW | ANYP;
sg.sg_flags &= ~ECHO;
#endif
ioctl (hms_desc, TIOCSETP, &sg);
if (!serial_setbaudrate(baudrate))
error("Can't set baudrate");
}
static void
get_baudrate_right()
{
int which_rate = 0;
while (!is_baudrate_right())
{
which_rate++;
if (baudtab[which_rate].rate == -1)
{
which_rate = 0;
baudrate = serial_nextbaudrate(baudrate);
if (baudrate == 0) {
printf_filtered("Board not yet in sync\n");
break;
}
baudrate = baudtab[which_rate].rate;
printf_filtered("Board not responding, trying %d baud\n",baudrate);
QUIT;
set_rate();
serial_setbaudrate(baudrate);
}
}
@ -738,46 +611,32 @@ hms_open (name, from_tty)
name = "";
}
if (is_open)
hms_close (0);
if (name && strlen(name))
dev_name = strdup(name);
if (!serial_open(dev_name))
perror_with_name ((char *)dev_name);
serial_raw();
is_open = 1;
hms_desc = open (dev_name, O_RDWR);
if (hms_desc < 0)
perror_with_name (dev_name);
set_rate();
dcache_init();
/* start_remote (); /* Initialize gdb process mechanisms */
#ifndef HAVE_TERMIO
#ifndef NO_SIGINTERRUPT
/* Cause SIGALRM's to make reads fail with EINTR instead of resuming
the read. */
if (siginterrupt (SIGALRM, 1) != 0)
perror ("hms_open: error in siginterrupt");
#endif
/* Set up read timeout timer. */
if ((void (*)) signal (SIGALRM, hms_timer) == (void (*)) -1)
perror ("hms_open: error in signal");
#endif
get_baudrate_right();
/* Hello? Are you there? */
write (hms_desc, "\r", 1);
serial_write("\r",1);
expect_prompt ();
/* Clear any break points */
hms_clear_breakpoints();
printf_filtered("Remote debugging on an H8/300 HMS via %s.\n",dev_name);
printf_filtered("Connected to remote H8/300 HMS system.\n");
DEXIT("hms_open()");
}
@ -795,21 +654,10 @@ hms_close (quitting)
hms_clear_breakpoints();
/* Put this port back into REMOTE mode */
if (OPEN(hms_desc)) {
sleep(1); /* Let any output make it all the way back */
write(hms_desc, "R\r", 2);
}
/* Due to a bug in Unix, fclose closes not only the stdio stream,
but also the file descriptor. So we don't actually close
hms_desc. */
if (OPEN(hms_desc))
close (hms_desc);
/* Do not try to close hms_desc again, later in the program. */
hms_desc = -1;
serial_write("R\r", 2);
serial_close();
is_open = 0;
DEXIT("hms_close()");
}
@ -852,11 +700,9 @@ hms_detach (args,from_tty)
int from_tty;
{
DENTER("hms_detach()");
if (OPEN(hms_desc)) { /* Send it on its way (tell it to continue) */
if (is_open)
{
hms_clear_breakpoints();
#if 0
fprintf(hms_stream,"G\r");
#endif
}
pop_target(); /* calls hms_close to do the real work */
@ -934,7 +780,7 @@ hms_wait (status)
return 0;
}
timeout = 0; /* Don't time out -- user program is running. */
timeout = 99999; /* Don't time out -- user program is running. */
immediate_quit = 1; /* Helps ability to QUIT */
while (1)
{
@ -1010,11 +856,8 @@ static char *
get_reg_name (regno)
int regno;
{
static char *rn[NUM_REGS]= REGISTER_NAMES;
static char *rn[NUM_REGS]= REGISTER_NAMES;
return rn[regno];
}
/* Read the remote registers. */
@ -1069,7 +912,8 @@ hms_write(a,l)
char *a;
{
int i;
write(hms_desc,a,l);
serial_write(a, l);
if (!quiet)
for (i = 0; i < l ; i++)
{
@ -1080,12 +924,13 @@ char *a;
hms_write_cr(s)
char *s;
{
hms_write( s, strlen(s));
hms_write("\r",1);
hms_write( s, strlen(s));
hms_write("\r",1);
}
static void
hms_fetch_registers ()
hms_fetch_register (dummy)
int dummy;
{
#define REGREPLY_SIZE 79
char linebuf[REGREPLY_SIZE+1];
@ -1132,43 +977,30 @@ hms_fetch_registers ()
while (!gottok);
for (i = 0; i < NUM_REGS; i++)
{
supply_register (i, reg+i);
char swapped[2];
swapped[1] = reg[i];
swapped[0] = (reg[i])>> 8;
supply_register (i, swapped);
}
}
/* Fetch register REGNO, or all registers if REGNO is -1.
*/
static void
hms_fetch_register (regno)
int regno;
{
hms_fetch_registers ();
}
/* Store the remote registers from the contents of the block REGS. */
static int
hms_store_registers ()
{
int i;
for (i = 0; i < NUM_REGS; i++)
hms_store_register(i);
return 0;
}
/* Store register REGNO, or all if REGNO == -1.
Return errno value. */
int
static void
hms_store_register (regno)
int regno;
{
/* printf("hms_store_register() called.\n"); fflush(stdout); /* */
if (regno == -1)
hms_store_registers ();
{
for (regno = 0; regno < NUM_REGS; regno ++)
{
hms_store_register(regno);
}
}
else
{
char *name = get_reg_name (regno);
@ -1179,9 +1011,11 @@ hms_store_register (regno)
}
DEXIT("hms_store_registers()");
return 0;
}
/* 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
@ -1301,50 +1135,53 @@ hms_xfer_inferior_memory(memaddr, myaddr, len, write, target)
return len;
}
#if 0
int
hms_xfer_inferior_memory (memaddr, myaddr, len, write)
CORE_ADDR memaddr;
char *myaddr;
int len;
int write;
{
memaddr &= 0xffff;
if (write)
return hms_write_inferior_memory (memaddr, myaddr, len);
else
return hms_read_inferior_memory (memaddr, myaddr, len);
}
#endif
int
hms_write_inferior_memory (memaddr, myaddr, len)
CORE_ADDR memaddr;
char *myaddr;
unsigned char *myaddr;
int len;
{
bfd_vma addr;
int done;
int todo ;
done = 0;
while(done < len)
{
char buffer[20];
int thisgo;
int idx;
thisgo = len - done;
if (thisgo > 20) thisgo = 20;
bfd *abfd = bfd_openw(dev_name, "srec");
asection *a;
bfd_set_format(abfd, bfd_object);
a = bfd_make_section(abfd, ".text");
a->vma = memaddr;
a->_raw_size = len;
a->flags = SEC_LOAD | SEC_HAS_CONTENTS;
hms_write_cr("tl"); /* tell hms here comes the recs */
bfd_set_section_contents(abfd, a, myaddr, 0, len);
bfd_close(abfd);
sprintf(buffer,"M.B %4x =", memaddr+done);
hms_write(buffer,10);
for (idx = 0; idx < thisgo; idx++)
{
char buf[20];
sprintf(buf, "%2x ", myaddr[idx+done]);
hms_write(buf, 3);
}
hms_write_cr("");
expect_prompt();
done += thisgo;
}
}
void
hms_files_info ()
{
printf_filtered("\tAttached to %s at %d baud and running program %s\n",
dev_name, baudrate, bfd_get_filename(exec_bfd));
char *file = "nothing";
if (exec_bfd)
file = bfd_get_filename(exec_bfd);
if (exec_bfd)
#ifdef __GO32__
printf_filtered("\tAttached to DOS asynctsr and running program %s\n",file);
#else
printf_filtered("\tAttached to %s at %d baud and running program %s\n",file);
#endif
printf_filtered("\ton an H8/300 processor.\n");
}
@ -1431,17 +1268,9 @@ hms_read_inferior_memory(memaddr, myaddr, len)
}
}
hms_write_cr(" ");
expect_prompt();
return len;
}
/* This routine is run as a hook, just before the main command loop is
@ -1457,29 +1286,6 @@ hms_before_main_loop ()
extern jmp_buf to_top_level;
push_target (&hms_ops);
#if 0
while (current_target != &hms_ops) {
/* remote tty not specified yet */
if ( instream == stdin ){
printf("\nEnter device and filename, or \"quit\" to quit: ");
fflush( stdout );
}
fgets( ttyname, sizeof(ttyname)-1, stdin );
if ( !strcmp("quit", ttyname) ){
exit(1);
}
hms_open( ttyname, 1 );
/* Now that we have a tty open for talking to the remote machine,
download the executable file if one was specified. */
if ( !setjmp(to_top_level) && exec_bfd ) {
target_load (bfd_get_filename (exec_bfd), 1);
}
}
#endif
}
@ -1490,23 +1296,25 @@ hms_insert_breakpoint(addr, save)
CORE_ADDR addr;
char *save; /* Throw away, let hms save instructions */
{
DENTER("hms_insert_breakpoint()");
check_open();
if (num_brkpts < MAX_BREAKS) {
if (num_brkpts < MAX_BREAKS)
{
char buffer[100];
num_brkpts++;
sprintf(buffer,"b %x", addr & 0xffff);
hms_write_cr(buffer);
expect_prompt ();
DEXIT("hms_insert_breakpoint() success");
return(0); /* Success */
} else {
return(0);
}
else
{
fprintf_filtered(stderr,
"Too many break points, break point not installed\n");
DEXIT("hms_insert_breakpoint() failure");
return(1); /* Failure */
return(1);
}
@ -1517,7 +1325,8 @@ CORE_ADDR addr;
char *save; /* Throw away, let hms save instructions */
{
DENTER("hms_remove_breakpoint()");
if (num_brkpts > 0) {
if (num_brkpts > 0)
{
char buffer[100];
num_brkpts--;
@ -1536,12 +1345,11 @@ hms_clear_breakpoints()
{
DENTER("hms_clear_breakpoint()");
if (OPEN(hms_desc)) {
if (is_open) {
hms_write_cr("b -");
expect_prompt ();
}
num_brkpts = 0;
DEXIT("hms_clear_breakpoint()");
}
static void
@ -1549,39 +1357,14 @@ hms_mourn()
{
DENTER("hms_mourn()");
hms_clear_breakpoints();
/* pop_target (); /* Pop back to no-child state */
generic_mourn_inferior ();
DEXIT("hms_mourn()");
}
/* Display everthing we read in from the hms until we match/see the
* specified string
*/
static int
display_until(str)
char *str;
{
int i=0,j,c;
while (c=readchar()) {
if (c==str[i]) {
i++;
if (i == strlen(str)) return;
} else {
if (i) {
for (j=0 ; j<i ; j++) /* Put everthing we matched */
putchar(str[j]);
i=0;
}
putchar(c);
}
}
}
/* Put a command string, in args, out to the hms. The hms is assumed to
be in raw mode, all writing/reading done through hms_desc.
be in raw mode, all writing/reading done through desc.
Ouput from the hms is placed on the users terminal until the
prompt from the hms is seen.
FIXME: Can't handle commands that take input. */
@ -1597,11 +1380,9 @@ hms_com (args, fromtty)
/* Clear all input so only command relative output is displayed */
hms_write_cr(args);
hms_write("\030",1);
expect_prompt();
}
/* Define the target subroutine names */
@ -1634,36 +1415,36 @@ by a serial line.",
hms_quiet()
{
quiet = ! quiet;
if (quiet)
printf_filtered("Snoop disabled\n");
else
printf_filtered("Snoop enabled\n");
}
hms_device(s)
char *s;
{
if (s) {
if (s)
{
dev_name = get_word(&s);
}
}
static
hms_speed(s)
char *s;
{
check_open();
check_open();
if (s)
{
char buffer[100];
int newrate = atoi(s);
int which = 0;
while (baudtab[which].rate != newrate)
{
if (baudtab[which].rate == -1)
{
if (!serial_setbaudrate(newrate))
error("Can't use %d baud\n", newrate);
}
which++;
}
printf_filtered("Checking target is in sync\n");
@ -1687,12 +1468,14 @@ _initialize_remote_hms ()
"Send a command to the HMS monitor.");
add_com ("snoop", class_obscure, hms_quiet,
"Show what commands are going to the monitor");
add_com ("device", class_obscure, hms_device,
"Set the terminal line for HMS communications");
add_com ("speed", class_obscure, hms_speed,
"Set the terminal line speed for HMS communications");
dev_name = serial_default_name();
}

330
gdb/ser-go32.c Normal file
View File

@ -0,0 +1,330 @@
/* Remote serial interface for GO32
Copyright 1992
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 <stdio.h>
#include <sys/dos.h>
#include "defs.h"
#include "serial.h"
#define SIGNATURE 0x4154
#define VERSION 1
#define OFFSET 0x104
/*#define MONO 1*/
#define dprintf if(0)printf
#ifdef __GNUC__
#define far
#define peek(a,b) (*(unsigned short *)(0xe0000000 + (a)*16 + (b)))
#endif
typedef struct {
short jmp_op;
short signature;
short version;
short buffer_start;
short buffer_end;
short getp;
short putp;
short iov;
} ASYNC_STRUCT;
static ASYNC_STRUCT far *async;
static int iov;
#define com_rb iov
#define com_tb iov
#define com_ier iov+1
#define com_ifr iov+2
#define com_bfr iov+3
#define com_mcr iov+4
#define com_lsr iov+5
#define com_msr iov+6
#if MONO
#include <sys/pc.h>
static int mono_pos=0;
#define mono_rx 0x07
#define mono_tx 0x70
void mono_put(char byte, char attr)
{
ScreenSecondary[320+mono_pos+80] = 0x0720;
ScreenSecondary[320+mono_pos] = (attr<<8) | (byte&0xff);
mono_pos = (mono_pos+1) % 1200;
}
#endif
static char far *aptr(short p)
{
#ifdef __GNUC__
return (char *)((unsigned)async - OFFSET + p);
#else
return (char far *)MK_FP(FP_SEG(async), p);
#endif
}
static ASYNC_STRUCT far *getivec(int which)
{
ASYNC_STRUCT far *a;
if (peek(0, which*4) != OFFSET)
return 0;
#ifdef __GNUC__
a = (ASYNC_STRUCT *)(0xe0000000 + peek(0, which*4+2)*16 + peek(0, which*4));
#else
a = (ASYNC_STRUCT far *)MK_FP(peek(0,which*4+2),peek(0,which*4));
#endif
if (a->signature != SIGNATURE)
return 0;
if (a->version != VERSION)
return 0;
return a;
}
int dos_async_init()
{
int i;
ASYNC_STRUCT far *a1;
ASYNC_STRUCT far *a2;
a1 = getivec(12);
a2 = getivec(11);
async = 0;
if (a1)
async = a1;
if (a2)
async = a2;
if (a1 && a2)
{
if (a1 < a2)
async = a1;
else
async = a2;
}
if (async == 0)
{
error("GDB can not connect to asynctsr program, check that it is installed\n\
and that serial I/O is not being redirected (perhaps by NFS)\n\n\
example configuration:\n\
C> mode com2:9600,n,8,1,p\n\
C> asynctsr 2\n\
C> gdb \n");
}
iov = async->iov;
outportb(com_ier, 0x0f);
outportb(com_bfr, 0x03);
outportb(com_mcr, 0x0b);
async->getp = async->putp = async->buffer_start;
#if MONO
for (i=0; i<1200; i++)
ScreenSecondary[320+i] = 0x0720;
#endif
if (iov > 0x300)
return 1;
else
return 2;
}
dos_async_tx(char c)
{
dprintf("dos_async_tx: enter %x - with IOV %x", c, com_lsr);
fflush(stdout);
while (~inportb(com_lsr) & 0x20);
outportb(com_tb, c);
#if MONO
mono_put(c, mono_tx);
#endif
dprintf("exit\n");
}
int dos_async_ready()
{
return (async->getp != async->putp);
}
int dos_async_rx()
{
char rv;
dprintf("dos_async_rx: enter - ");
fflush(stdout);
while (!dos_async_ready())
if (kbhit())
{
printf("abort!\n");
return 0;
}
dprintf("async=%x getp=%x\n", async, async->getp);
fflush(stdout);
rv = *aptr(async->getp++);
#if MONO
mono_put(rv, mono_rx);
#endif
if (async->getp >= async->buffer_end)
async->getp = async->buffer_start;
dprintf("exit %x\n", rv);
return rv;
}
int dos_kb_ready()
{
return (peek(0x40,0x1a) != peek(0x40,0x1c));
}
int dos_kb_rx()
{
#ifdef __GNUC__
return getkey();
#else
return getch();
#endif
}
int dosasync_read(int fd, char *buffer, int length, int timeout)
{
long now, then;
int l = length;
time (&now);
then = now+timeout;
dprintf("dosasync_read: enter(%d,%d)\n", length, timeout);
while (l--)
{
if (timeout)
{
while (!dos_async_ready())
{
time (&now);
if (now == then)
{
dprintf("dosasync_read: timeout(%d)\n", length-l-1);
return length-l-1;
}
}
}
*buffer++ = dos_async_rx();
}
dprintf("dosasync_read: exit %d\n", length);
return length;
}
int dosasync_write(int fd, CONST char *buffer, int length)
{
int l = length;
while (l--)
dos_async_tx(*buffer++);
return length;
}
char *strlwr(char *s)
{
char *p = s;
while (*s)
{
if ((*s >= 'A') && (*s <= 'Z'))
*s += 'a'-'A';
s++;
}
return p;
}
sigsetmask() {
}
static int fd;
CONST char *
DEFUN_VOID(serial_default_name)
{
return "com1";
}
void
DEFUN_VOID(serial_raw)
{
/* Always in raw mode */
}
int
DEFUN(serial_open,(name),
CONST char *name)
{
fd = dos_async_init();
if (fd) return 1;
return 0;
}
int
DEFUN(serial_timedreadchar,(to, ok),
int to AND
int *ok)
{
char buf;
if ( dosasync_read(fd, &buf, 1, to))
{
*ok = 1;
}
else
{
*ok = 0;
}
return buf;
}
int
DEFUN(serial_setbaudrate,(rate),
int rate)
{
return 0;
}
int
DEFUN(serial_nextbaudrate,(rate),
int rate)
{
return 0;
}
int
DEFUN(serial_write,(str, len),
CONST char *str AND
int len)
{
dosasync_write(fd, str, len);
}
int
DEFUN_VOID(serial_close)
{
}

208
gdb/ser-termios.c Normal file
View File

@ -0,0 +1,208 @@
/* Remote serial interface for OS's with termios
Copyright 1992
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 "defs.h"
#include "serial.h"
#include <fcntl.h>
#include <termios.h>
#include <sys/time.h>
static int desc;
CONST char *
DEFUN_VOID(serial_default_name)
{
return "/dev/ttya";
}
void
DEFUN_VOID(serial_raw)
{
/* Now happens inside of serial_open */
}
static struct termios otermios;
static int oflags;
void
DEFUN_VOID(serial_normal)
{
fcntl(desc, oflags, 0);
if (tcsetattr(desc, TCSANOW, &otermios))
{
printf("tcgetattr failed: errno=%d\n", errno);
}
}
int
DEFUN(serial_open,(name),
CONST char *name)
{
struct termios termios;
desc = open (name, O_RDWR);
if (desc < 0)
perror("Open failed: ");
oflags = fcntl(desc, F_GETFL, 0);
fcntl(desc, F_SETFL, oflags|FNDELAY);
if (tcgetattr(desc, &termios)) {
printf("tcgetattr failed: errno=%d\n", errno);
}
otermios = termios;
termios.c_iflag = 0;
termios.c_oflag = 0;
termios.c_lflag = 0;
termios.c_cc[VMIN] = 0;
termios.c_cc[VTIME] = 0;
if (tcsetattr(desc, TCSANOW, &termios)) {
printf("tcgetattr failed: errno=%d\n", errno);
}
return 1;
}
int
DEFUN(serial_timedreadchar,(timeout, ok),
int timeout AND
int *ok)
{
unsigned char buf;
fd_set readfds;
int val;
struct timeval tv;
FD_ZERO(&readfds);
FD_SET(desc, &readfds);
tv.tv_sec = timeout;
tv.tv_usec = 0;
val = select(desc+1, &readfds, 0, 0, &tv);
if (val > 0 && FD_ISSET(desc, &readfds))
{
val = read (desc, &buf, 1);
if (val == 1)
{
*ok = 1;
return buf;
}
}
*ok = 0;
return 0;
}
/* Translate baud rates from integers to damn B_codes. Unix should
have outgrown this crap years ago, but even POSIX wouldn't buck it. */
#ifndef B19200
#define B19200 EXTA
#endif
#ifndef B38400
#define B38400 EXTB
#endif
static struct {int rate, damn_b;} baudtab[] = {
{9600, B9600},
{19200, B19200},
#if 0
{300, B300},
{1200, B1200},
{2400, B2400},
{4800, B4800},
#endif
{-1, -1},
};
static int
DEFUN(damn_b,(rate),
int rate)
{
int i;
for (i = 0; baudtab[i].rate != -1; i++)
{
if (rate == baudtab[i].rate)
{
return i;
}
}
return -1;
}
int
DEFUN(serial_setbaudrate,(rate),int rate)
{
struct termios termios;
if (tcgetattr(desc, &termios)) {
printf("tcgetattr failed: errno=%d\n", errno);
}
cfsetospeed(&termios, baudtab[damn_b(rate)].damn_b);
cfsetispeed(&termios, baudtab[damn_b(rate)].damn_b);
if (tcsetattr(desc, TCSANOW, &termios)) {
printf("tcgetattr failed: errno=%d\n", errno);
}
return 1;
}
int
DEFUN(serial_nextbaudrate,(rate),
int rate)
{
int lookup;
lookup = damn_b(rate);
if (lookup == -1)
return baudtab[0].rate;
lookup++;
if (baudtab[lookup].rate == -1)
return baudtab[0].rate;
return baudtab[lookup].rate;
}
int
DEFUN(serial_write,(str, len),
CONST char *str AND
int len)
{
write (desc, str, len);
}
int
DEFUN_VOID(serial_close)
{
close(desc);
}

62
gdb/serial.h Normal file
View File

@ -0,0 +1,62 @@
/* Remote Serial support interface definitions for GDB, the GNU Debugger.
Copyright 1992 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. */
/* Return a sensible default name for a serial device, something which
can be used as an argument to serial_open */
CONST char *EXFUN(serial_default_name,(void));
/* Try to open the serial device "name", return 1 if ok, 0 if not. */
int EXFUN(serial_open,(CONST char *name));
/* Turn the port into raw mode */
void EXFUN(serial_raw,(void));
/* Turn the port into normal mode */
void EXFUN(serial_normal,(void));
/* Read one char from the serial device with timeout, return char, and
set ok if ok */
int EXFUN(serial_timedreadchar,(int to , int *ok));
/* Set the baudrate to the value supplied, and return 1, or fail and
return 0 */
int EXFUN(serial_setbaudrate,(int to));
/* Return the next rate in the sequence, or return 0 for a fail*/
int EXFUN(serial_nextbaudrate,(int rate));
/* Write some chars to the device, return 1 if ok, 0 if not */
int EXFUN(serial_write,( CONST char *str , int len));
/* Close the serial port */
int EXFUN(serial_close,(void));

6
gdb/tm-h8300.h
View File

@ -287,9 +287,9 @@ UNSIGNED_SHORT(read_memory_integer (read_register (SP_REGNUM), 2))
#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
{ bcopy ((FROM), (TO), 2); }
{ memcpy((TO), (FROM), 2); }
#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
{ bcopy ((FROM), (TO), 4); }
{ memcpy((TO), (FROM), 2); }
#define BEFORE_MAIN_LOOP_HOOK \
hms_before_main_loop();
@ -303,3 +303,5 @@ typedef unsigned short INSN_WORD;
#define ADDR_BITS_SET(addr) (((addr)))
#define read_memory_short(x) (read_memory_integer(x,2) & 0xffff)
#define DONT_USE_REMOTE

6
gdb/values.c
View File

@ -551,7 +551,7 @@ value_as_pointer (val)
{
/* Assume a CORE_ADDR can fit in a LONGEST (for now). Not sure
whether we want this to be true eventually. */
return value_as_long (val);
return ADDR_BITS_REMOVE(value_as_long (val));
}
/* Unpack raw data (copied from debugee, target byte order) at VALADDR
@ -705,14 +705,14 @@ unpack_long (type, valaddr)
{
if (len == sizeof(long))
{
long retval;
unsigned long retval;
bcopy (valaddr, &retval, sizeof(retval));
SWAP_TARGET_AND_HOST (&retval, sizeof(retval));
return retval;
}
else if (len == sizeof(short))
{
short retval;
unsigned short retval;
bcopy (valaddr, &retval, len);
SWAP_TARGET_AND_HOST (&retval, len);
return retval;

5
gdb/xm-go32.h Normal file
View File

@ -0,0 +1,5 @@
#undef EIO
#define EIO 0
#define SYS_SIGLIST_MISSING 1
#define HOST_BYTE_ORDER LITTLE_ENDIAN
#include "fopen-bin.h"