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binutils-gdb
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From nigel@algor.co.uk. 

* ser-go32.c (dos_close): Don't crash if scb null.
	(dos_sendbreak): New function.
	(dos_ops): Point to dos_sendbreak.
	(dos_info): Calculate COM number correctly.
This commit is contained in:
Steve Chamberlain 1995-01-31 19:30:27 +00:00
parent a81ce07da8
commit ccbae88965
2 changed files with 38 additions and 4 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
Tue Jan 31 11:14:44 1995 Steve Chamberlain <sac@splat>
From nigel@algor.co.uk.
* ser-go32.c (dos_close): Don't crash if scb null.
(dos_sendbreak): New function.
(dos_ops): Point to dos_sendbreak.
(dos_info): Calculate COM number correctly.
Tue Jan 31 09:40:11 1995 Jim Kingdon (kingdon@lioth.cygnus.com)
* xcoffread.c (process_xcoff_symbol): Use new variables

34
gdb/ser-go32.c
View File

@ -552,9 +552,13 @@ static void
dos_close (scb)
serial_t scb;
{
struct dos_ttystate *port = &ports[scb->fd];
struct dos_ttystate *port;
struct intrupt *intrupt;
if (!scb)
return;
port = &ports[scb->fd];
if (!(intrupt = port->intrupt))
return;
@ -768,6 +772,28 @@ dos_write (scb, str, len)
return 0;
}
static int
dos_sendbreak (scb)
serial_t scb;
{
volatile struct dos_ttystate *port = &ports[scb->fd];
unsigned char cfcr;
long then;
cfcr = inb(port, com_cfcr);
outb(port, com_cfcr, cfcr | CFCR_SBREAK);
/* 0.25 sec delay */
then = rawclock () + RAWHZ / 4;
while ((rawclock () - then) < 0)
continue;
outb(port, com_cfcr, cfcr);
return 0;
}
static struct serial_ops dos_ops =
{
"hardwire",
@ -778,7 +804,7 @@ static struct serial_ops dos_ops =
dos_write,
dos_noop, /* flush output */
dos_flush_input,
dos_noop, /* send break -- currently used only for nindy */
dos_sendbreak,
dos_raw,
dos_get_tty_state,
dos_set_tty_state,
@ -800,12 +826,12 @@ dos_info (arg, from_tty)
{
if (port->baudrate == 0)
continue;
printf_filtered ("Port:\tCOM%d (%sactive)\n", port - ports,
printf_filtered ("Port:\tCOM%d (%sactive)\n", port - ports + 1,
port->intrupt ? "" : "not ");
printf_filtered ("Addr:\t0x%03x (irq %d)\n", port->base, port->irq);
printf_filtered ("16550:\t%s\n", port->fifo ? "yes" : "no");
printf_filtered ("Speed:\t%d baud\n", port->baudrate);
printf_filtered ("Errs:\tframing %d parity %d overflow %d\n",
printf_filtered ("Errs:\tframing %d parity %d overflow %d\n\n",
port->ferr, port->perr, port->oflo);
}