FreeChainXenon/binutils-gdb
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* NEWS: Make note of new record and replay feature for

Browse source 
remote debug sessions.
	* serial.c (gdbcmd.h): Include.
	(serial_logfile, serial_logfp, serial_reading, serial_writing):
 	Define here, for remote debug session logging.
	(serial_log_command, serial_logchar, serial_write, serial_readchar):
	New functions for remote debug session logging.
	(serial_open): Open remote debug session log file when needed.
	(serial_close): Close remote debug session log file when needed.
	(_initialize_serial): Add set/show commands for name of remote
	debug session log file.
	* serial.h (serial_readchar): Declare
	(SERIAL_READCHAR): Call serial_readchar().
	(SERIAL_WRITE): Call serial_write().
	(serial_close): Declare as extern.
	(serial_logfile, serial_logfp): Declare.
	* top.c (execute_command): Declare serial_logfp.  Log user command
	in remote debug session log if log file is open.
	* remote-array.c (array_wait): #ifdef out echo to gdb_stdout.
	(array_read_inferior_memory): Rewrite to fix memory overwrite bug.
	* remote-array.c (SREC_SIZE): Remove, duplicates define in
	monitor.h.
	* remote-array.c (hexchars, hex2mem):  Remove, unused.
	* gdbserver/low-linux.c (store_inferior_registers): Remove
	unnecessary extern declaration of registers[].
	* gdbserver/Makefile.in (all): Add gdbreplay.
	* gdbserver/gdbreplay.c: New file.
	* gdbserver/README: Give example of recording a remote
	debug session with gdb and then replaying it with gdbreplay.
This commit is contained in:
Fred Fish 1996-01-24 21:30:37 +00:00
parent 76e45938c3
commit e8f1ad9a8b
8 changed files with 551 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

81
gdb/remote-array.c
View file

@ -43,10 +43,6 @@
extern int baud_rate;
static const char hexchars[]="0123456789abcdef";
static char *hex2mem();
#define SREC_SIZE 160
#define ARRAY_PROMPT ">> "
#define SWAP_TARGET_AND_HOST(buffer,len) \
@ -758,8 +754,10 @@ array_wait (pid, status)
/* do this so it looks like there's keyboard echo */
if (c == 3) /* exit on Control-C */
break;
#if 0
fputc_unfiltered (c, gdb_stdout);
fflush (stdout);
#endif
}
}
SERIAL_SET_TTY_STATE (tty_desc, ttystate);
@ -947,21 +945,12 @@ array_read_inferior_memory(memaddr, myaddr, len)
char *myaddr;
int len;
{
int i, j;
int j;
char buf[20];
char packet[PBUFSIZ];
/* Number of bytes read so far. */
int count;
/* Starting address of this pass. */
unsigned long startaddr;
/* Starting address of this pass. */
unsigned long endaddr;
/* Number of bytes to read in this pass. */
int len_this_pass;
int count; /* Number of bytes read so far. */
unsigned long startaddr; /* Starting address of this pass. */
int len_this_pass; /* Number of bytes to read in this pass. */
debuglogs (1, "array_read_inferior_memory (memaddr=0x%x, myaddr=0x%x, len=%d)", memaddr, myaddr, len);
@ -979,36 +968,46 @@ array_read_inferior_memory(memaddr, myaddr, len)
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);
debuglogs (3, "Display %d bytes at %x for Big Endian host", len_this_pass, startaddr);
for (i = 0; i < len_this_pass; i++) {
for (count = 0, startaddr = memaddr; count < len; startaddr += len_this_pass)
{
/* Try to align to 16 byte boundry (why?) */
len_this_pass = 16;
if ((startaddr % 16) != 0)
{
len_this_pass -= startaddr % 16;
}
/* Only transfer bytes we need */
if (len_this_pass > (len - count))
{
len_this_pass = (len - count);
}
/* Fetch the bytes */
debuglogs (3, "read %d bytes from inferior address %x", len_this_pass,
startaddr);
sprintf (buf, "m%08x,%04x", startaddr, len_this_pass);
make_gdb_packet (packet, buf);
if (array_send_packet (packet) == 0)
error ("Couldn't transmit packet\n");
{
error ("Couldn't transmit packet\n");
}
if (array_get_packet (packet) == 0)
error ("Couldn't receive packet\n");
{
error ("Couldn't receive packet\n");
}
if (*packet == 0)
error ("Got no data in the GDB packet\n");
debuglogs (4, "array_read_inferior: Got a \"%s\" back\n", packet);
for (j = 0; j < len_this_pass ; j++) { /* extract the byte values */
myaddr[count++] = from_hex (*(packet+(j*2))) * 16 + from_hex (*(packet+(j*2)+1));
debuglogs (5, "myaddr set to %x\n", myaddr[count-1]);
}
startaddr += 1;
{
error ("Got no data in the GDB packet\n");
}
/* Pick packet apart and xfer bytes to myaddr */
debuglogs (4, "array_read_inferior_memory: Got a \"%s\" back\n", packet);
for (j = 0; j < len_this_pass ; j++)
{
/* extract the byte values */
myaddr[count++] = from_hex (*(packet+(j*2))) * 16 + from_hex (*(packet+(j*2)+1));
debuglogs (5, "myaddr[%d] set to %x\n", count-1, myaddr[count-1]);
}
}
}
return len;
return (count);
}
/* FIXME-someday! merge these two. */