Make debugging remote gdb friendlier
This commit is contained in:
Michael Meissner
parent
9dfb65e661
commit
b9ab37f0a8
|
|
@ -1,3 +1,14 @@
|
|||
Wed Nov 29 16:39:50 1995 Michael Meissner <meissner@tiktok.cygnus.com>
|
||||
|
||||
* monitor.c (monitor_debug): New function to print monitor debug
|
||||
output in printable fashion.
|
||||
(monitor_printf{,_noecho}): Call monitor_debug instead of
|
||||
fputs_unfiltered.
|
||||
|
||||
* srec.c (load_srec): When printing srec debug information, do not
|
||||
print the carriage return directly, instead print \\r followed by
|
||||
a newline.
|
||||
|
||||
Tue Nov 28 15:25:28 1995 Doug Evans <dje@canuck.cygnus.com>
|
||||
|
||||
* Makefile.in (target_subdir): Define.
|
||||
|
|
|
|||
270
gdb/monitor.c
270
gdb/monitor.c
|
|
@ -1,6 +1,8 @@
|
|||
/* Remote debugging interface for boot monitors, for GDB.
|
||||
Copyright 1990, 1991, 1992, 1993, 1995 Free Software Foundation, Inc.
|
||||
Contributed by Cygnus Support. Written by Rob Savoye for Cygnus.
|
||||
Copyright 1990, 1991, 1992, 1993, 1995
|
||||
Free Software Foundation, Inc.
|
||||
Contributed by Cygnus Support. Written by Rob Savoye for Cygnus.
|
||||
Resurrected from the ashes by Stu Grossman.
|
||||
|
||||
This file is part of GDB.
|
||||
|
||||
|
|
@ -38,6 +40,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|||
#include <varargs.h>
|
||||
#endif
|
||||
#include <signal.h>
|
||||
#include <ctype.h>
|
||||
#include "gdb_string.h"
|
||||
#include <sys/types.h>
|
||||
#include "command.h"
|
||||
|
|
@ -45,17 +48,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|||
#include "monitor.h"
|
||||
#include "gdbcmd.h"
|
||||
#include "inferior.h"
|
||||
#include "regex.h"
|
||||
#include "gnu-regex.h"
|
||||
#include "dcache.h"
|
||||
#include "srec.h"
|
||||
|
||||
static int readchar PARAMS ((int timeout));
|
||||
|
||||
static void monitor_command PARAMS ((char *args, int fromtty));
|
||||
static void monitor_load_srec PARAMS ((char *args));
|
||||
|
||||
static int monitor_make_srec PARAMS ((char *buffer, int type,
|
||||
CORE_ADDR memaddr,
|
||||
unsigned char *myaddr, int len));
|
||||
|
||||
static void monitor_fetch_register PARAMS ((int regno));
|
||||
static void monitor_store_register PARAMS ((int regno));
|
||||
|
|
@ -80,6 +79,7 @@ static void monitor_kill PARAMS ((void));
|
|||
static void monitor_load PARAMS ((char *file, int from_tty));
|
||||
static void monitor_mourn_inferior PARAMS ((void));
|
||||
static void monitor_stop PARAMS ((void));
|
||||
static void monitor_debug PARAMS ((char *string));
|
||||
|
||||
static int monitor_read_memory PARAMS ((CORE_ADDR addr, char *myaddr,int len));
|
||||
static int monitor_write_memory PARAMS ((CORE_ADDR addr, char *myaddr,int len));
|
||||
|
|
@ -116,6 +116,39 @@ static int dump_reg_flag; /* Non-zero means do a dump_registers cmd when
|
|||
|
||||
static DCACHE *remote_dcache;
|
||||
|
||||
/* monitor_debug is like fputs_unfiltered, except it prints special
|
||||
characters in printable fashion. */
|
||||
|
||||
static void
|
||||
monitor_debug (string)
|
||||
char *string;
|
||||
{
|
||||
int ch;
|
||||
|
||||
while ((ch = *string++) != '\0')
|
||||
{
|
||||
switch (ch) {
|
||||
default:
|
||||
if (isprint (ch))
|
||||
fputc_unfiltered (ch, gdb_stderr);
|
||||
|
||||
else
|
||||
fprintf_unfiltered (gdb_stderr, "\\%03o", ch);
|
||||
|
||||
break;
|
||||
|
||||
case '\\': fputs_unfiltered ("\\\\", gdb_stderr); break;
|
||||
case '\b': fputs_unfiltered ("\\b", gdb_stderr); break;
|
||||
case '\f': fputs_unfiltered ("\\f", gdb_stderr); break;
|
||||
case '\n': fputs_unfiltered ("\\n\n", gdb_stderr); break;
|
||||
case '\r': fputs_unfiltered ("\\r\n", gdb_stderr); break;
|
||||
case '\t': fputs_unfiltered ("\\t", gdb_stderr); break;
|
||||
case '\v': fputs_unfiltered ("\\v", gdb_stderr); break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* monitor_printf_noecho -- Send data to monitor, but don't expect an echo.
|
||||
Works just like printf. */
|
||||
|
||||
|
|
@ -142,7 +175,7 @@ monitor_printf_noecho (va_alist)
|
|||
vsprintf (sndbuf, pattern, args);
|
||||
|
||||
if (remote_debug > 0)
|
||||
fputs_unfiltered (sndbuf, gdb_stderr);
|
||||
monitor_debug (sndbuf);
|
||||
|
||||
len = strlen (sndbuf);
|
||||
|
||||
|
|
@ -180,7 +213,7 @@ monitor_printf (va_alist)
|
|||
vsprintf (sndbuf, pattern, args);
|
||||
|
||||
if (remote_debug > 0)
|
||||
fputs_unfiltered (sndbuf, gdb_stderr);
|
||||
monitor_debug (sndbuf);
|
||||
|
||||
len = strlen (sndbuf);
|
||||
|
||||
|
|
@ -1308,7 +1341,15 @@ monitor_load (file, from_tty)
|
|||
if (current_monitor->load_routine)
|
||||
current_monitor->load_routine (monitor_desc, file, hashmark);
|
||||
else
|
||||
monitor_load_srec (file);
|
||||
{ /* The default is ascii S-records */
|
||||
monitor_printf (LOAD_CMD); /* tell the monitor to load */
|
||||
if (current_monitor->loadresp)
|
||||
monitor_expect (current_monitor->loadresp, NULL, 0);
|
||||
|
||||
load_srec (monitor_desc, file, 32, SREC_ALL, hashmark);
|
||||
|
||||
monitor_expect_prompt (NULL, 0);
|
||||
}
|
||||
|
||||
/* Finally, make the PC point at the start address */
|
||||
|
||||
|
|
@ -1361,213 +1402,6 @@ monitor_command (args, from_tty)
|
|||
fputs_unfiltered (buf, gdb_stdout); /* Output the response */
|
||||
}
|
||||
|
||||
/* Download a binary file by converting it to S records. */
|
||||
|
||||
static void
|
||||
monitor_load_srec (args)
|
||||
char *args;
|
||||
{
|
||||
bfd *abfd;
|
||||
asection *s;
|
||||
char *buffer, srec[1024];
|
||||
int i;
|
||||
int srec_frame = 32;
|
||||
int reclen;
|
||||
|
||||
buffer = alloca (srec_frame * 2 + 256);
|
||||
|
||||
abfd = bfd_openr (args, 0);
|
||||
if (!abfd)
|
||||
{
|
||||
printf_filtered ("Unable to open file %s\n", args);
|
||||
return;
|
||||
}
|
||||
|
||||
if (bfd_check_format (abfd, bfd_object) == 0)
|
||||
{
|
||||
printf_filtered ("File is not an object file\n");
|
||||
return;
|
||||
}
|
||||
|
||||
monitor_printf (LOAD_CMD); /* tell the monitor to load */
|
||||
if (current_monitor->loadresp)
|
||||
monitor_expect (current_monitor->loadresp, NULL, 0);
|
||||
|
||||
for (s = abfd->sections; s; s = s->next)
|
||||
{
|
||||
if (s->flags & SEC_LOAD)
|
||||
{
|
||||
int numbytes;
|
||||
|
||||
printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma,
|
||||
s->vma + s->_raw_size);
|
||||
gdb_flush (gdb_stdout);
|
||||
|
||||
for (i = 0; i < s->_raw_size; i += numbytes)
|
||||
{
|
||||
numbytes = min (srec_frame, s->_raw_size - i);
|
||||
|
||||
bfd_get_section_contents (abfd, s, buffer, i, numbytes);
|
||||
|
||||
reclen = monitor_make_srec (srec, 'd', s->vma + i, buffer, numbytes);
|
||||
|
||||
monitor_printf_noecho ("%.*s\r", reclen, srec);
|
||||
|
||||
if (hashmark)
|
||||
{
|
||||
putchar_unfiltered ('#');
|
||||
gdb_flush (gdb_stdout);
|
||||
}
|
||||
} /* Per-packet (or S-record) loop */
|
||||
|
||||
putchar_unfiltered ('\n');
|
||||
} /* Loadable sections */
|
||||
}
|
||||
if (hashmark)
|
||||
putchar_unfiltered ('\n');
|
||||
|
||||
/* Write a type 7 terminator record. no data for a type 7, and there
|
||||
is no data, so len is 0. */
|
||||
|
||||
reclen = monitor_make_srec (srec, 't', abfd->start_address, NULL, 0);
|
||||
|
||||
monitor_printf_noecho ("%.*s\r", reclen, srec);
|
||||
|
||||
monitor_printf_noecho ("\r\r"); /* Some monitors need these to wake up */
|
||||
|
||||
monitor_expect_prompt (NULL, 0);
|
||||
|
||||
SERIAL_FLUSH_INPUT (monitor_desc);
|
||||
}
|
||||
|
||||
/*
|
||||
* monitor_make_srec -- make an srecord. This writes each line, one at a
|
||||
* time, each with it's own header and trailer line.
|
||||
* An srecord looks like this:
|
||||
*
|
||||
* byte count-+ address
|
||||
* start ---+ | | data +- checksum
|
||||
* | | | |
|
||||
* S01000006F6B692D746573742E73726563E4
|
||||
* S315000448600000000000000000FC00005900000000E9
|
||||
* S31A0004000023C1400037DE00F023604000377B009020825000348D
|
||||
* S30B0004485A0000000000004E
|
||||
* S70500040000F6
|
||||
*
|
||||
* S<type><length><address><data><checksum>
|
||||
*
|
||||
* Where
|
||||
* - length
|
||||
* is the number of bytes following upto the checksum. Note that
|
||||
* this is not the number of chars following, since it takes two
|
||||
* chars to represent a byte.
|
||||
* - type
|
||||
* is one of:
|
||||
* 0) header record
|
||||
* 1) two byte address data record
|
||||
* 2) three byte address data record
|
||||
* 3) four byte address data record
|
||||
* 7) four byte address termination record
|
||||
* 8) three byte address termination record
|
||||
* 9) two byte address termination record
|
||||
*
|
||||
* - address
|
||||
* is the start address of the data following, or in the case of
|
||||
* a termination record, the start address of the image
|
||||
* - data
|
||||
* is the data.
|
||||
* - checksum
|
||||
* is the sum of all the raw byte data in the record, from the length
|
||||
* upwards, modulo 256 and subtracted from 255.
|
||||
*
|
||||
* This routine returns the length of the S-record.
|
||||
*
|
||||
*/
|
||||
|
||||
static int
|
||||
monitor_make_srec (buffer, type, memaddr, myaddr, len)
|
||||
char *buffer;
|
||||
int type;
|
||||
CORE_ADDR memaddr;
|
||||
unsigned char *myaddr;
|
||||
int len;
|
||||
{
|
||||
unsigned char checksum;
|
||||
int i;
|
||||
char *buf;
|
||||
static char hextab[] = "0123456789ABCDEF";
|
||||
static char data_code_table[] = { 0,0,1,2,3};
|
||||
static char term_code_table[] = { 0,0,9,8,7};
|
||||
int addr_size; /* Number of bytes in the record */
|
||||
int type_code;
|
||||
buf = buffer;
|
||||
|
||||
checksum = 0;
|
||||
|
||||
addr_size = 2;
|
||||
if (memaddr > 0xffffff)
|
||||
addr_size = 4;
|
||||
else if (memaddr > 0xffff)
|
||||
addr_size = 3;
|
||||
else
|
||||
addr_size = 2;
|
||||
|
||||
switch (type)
|
||||
{
|
||||
case 't':
|
||||
type_code = term_code_table[addr_size];
|
||||
break;
|
||||
case 'd':
|
||||
type_code = data_code_table[addr_size];
|
||||
break;
|
||||
default:
|
||||
abort();
|
||||
}
|
||||
/* Create the header for the srec. addr_size is the number of bytes in the address,
|
||||
and 1 is the number of bytes in the count. */
|
||||
|
||||
switch (addr_size)
|
||||
{
|
||||
case 4:
|
||||
sprintf (buf, "S%d%02X%08X", type_code, len + addr_size + 1, memaddr);
|
||||
buf += 12;
|
||||
break;
|
||||
case 3:
|
||||
sprintf (buf, "S%d%02X%06X", type_code, len + addr_size + 1, memaddr);
|
||||
buf += 10;
|
||||
break;
|
||||
case 2:
|
||||
sprintf (buf, "S%d%02X%04X", type_code, len + addr_size + 1, memaddr);
|
||||
buf += 8;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Note that the checksum is calculated on the raw data, not the hexified
|
||||
data. It includes the length, address and the data portions of the
|
||||
packet. */
|
||||
|
||||
checksum += (len + addr_size + 1 /* Packet length */
|
||||
+ (memaddr & 0xff) /* Address... */
|
||||
+ ((memaddr >> 8) & 0xff)
|
||||
+ ((memaddr >> 16) & 0xff)
|
||||
+ ((memaddr >> 24) & 0xff));
|
||||
|
||||
/* build the srecord */
|
||||
for (i = 0; i < len; i++)
|
||||
{
|
||||
*buf++ = hextab [myaddr[i] >> 4];
|
||||
*buf++ = hextab [myaddr[i] & 0xf];
|
||||
checksum += myaddr[i];
|
||||
}
|
||||
|
||||
checksum = ~checksum;
|
||||
|
||||
*buf++ = hextab[checksum >> 4];
|
||||
*buf++ = hextab[checksum & 0xf];
|
||||
|
||||
return buf - buffer;
|
||||
}
|
||||
|
||||
/* Convert hex digit A to a number. */
|
||||
|
||||
static int
|
||||
|
|
|
|||
|
|
@ -79,7 +79,7 @@ load_srec (desc, file, maxrecsize, flags, hashmark)
|
|||
flags);
|
||||
|
||||
if (remote_debug)
|
||||
fprintf_unfiltered (gdb_stderr, "%.*s", reclen, srec);
|
||||
fprintf_unfiltered (gdb_stderr, "%.*s\\r\n", reclen-1, srec);
|
||||
SERIAL_WRITE (desc, srec, reclen);
|
||||
|
||||
if (hashmark)
|
||||
|
|
@ -102,10 +102,10 @@ load_srec (desc, file, maxrecsize, flags, hashmark)
|
|||
make_srec (srec, abfd->start_address, NULL, NULL, 0, &reclen, flags);
|
||||
|
||||
if (remote_debug)
|
||||
fprintf_unfiltered (gdb_stderr, "%.*s", reclen, srec);
|
||||
fprintf_unfiltered (gdb_stderr, "%.*s\\r\n", reclen-1, srec);
|
||||
SERIAL_WRITE (desc, srec, reclen);
|
||||
|
||||
SERIAL_WRITE (desc, "\r\r", 2); /* Some monitors need these to wake up */
|
||||
SERIAL_WRITE (desc, "\r\r", 3); /* Some monitors need these to wake up */
|
||||
|
||||
SERIAL_FLUSH_INPUT (desc);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue