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* Makefile.in: Add new file ser-tcp.c.

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* defs.h (memcmp):  Add decl for memcmp to #ifndef MEM_FNS_DECLARED.
	* findvar.c (write_register):  See if we are writing back the same
	value that's already in the register.  If so, don't bother.
	* remote.c (putpkt, getpkt):  Improve handling of communication
	problems.
	* ser-go32.c:  Prototype it to death.  Update serial_ops and add
	dummy routines where appropriate.
	* ser-tcp.c:  New module to implement serial I/O via TCP
	connections.
	* ser-unix.c:  Clean up getting/setting of tty state.  Get rid of
	SERIAL_RESTORE, add SERIAL_{GET|SET}_TTY_STATE interfaces.
	* serial.c:  Add start of support for connect command.
	(serial_open):  Distinguish between tcp and local devices.
	* serial.h (struct serial_ops):  Get rid of restore, add
	get_tty_state and set_tty_state.  Define protoypes and macros for
	this mess.
	* gdbserver/remote-utils.c:  Add tcp support.  (readchar):  Do
	some real buffering.  Handle error conditions gracefully.
	* gdbserver/remote-inflow-sparc.c:  Update to remote-inflow.c
	(Lynx), remove lots of cruft.
This commit is contained in:
Stu Grossman
1993-05-29 01:33:36 +00:00
parent 633c8b0a9d
commit 38dc5e123f
10 changed files with 740 additions and 357 deletions
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88
gdb/gdbserver/remote-utils.c
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@@ -25,10 +25,15 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <a.out.h>
#include <sys/file.h>
#include <sgtty.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/tcp.h>
#include <sys/time.h>
extern int remote_desc;
extern int remote_debugging;
extern int kiodebug;
void remote_open ();
void remote_send ();
@@ -53,13 +58,56 @@ remote_open (name, from_tty)
remote_debugging = 0;
remote_desc = open (name, O_RDWR);
if (remote_desc < 0)
perror_with_name ("Could not open remote device");
if (!strchr (name, ':'))
{
remote_desc = open (name, O_RDWR);
if (remote_desc < 0)
perror_with_name ("Could not open remote device");
ioctl (remote_desc, TIOCGETP, &sg);
sg.sg_flags = RAW;
ioctl (remote_desc, TIOCSETP, &sg);
ioctl (remote_desc, TIOCGETP, &sg);
sg.sg_flags = RAW;
ioctl (remote_desc, TIOCSETP, &sg);
}
else
{
char *port_str;
int port;
struct sockaddr_in sockaddr;
int tmp;
port_str = strchr (name, ':');
port = atoi (port_str + 1);
remote_desc = socket (PF_INET, SOCK_STREAM, 0);
if (remote_desc < 0)
perror_with_name ("Can't open socket");
/* Allow rapid reuse of this port. */
tmp = 1;
setsockopt (remote_desc, SOL_SOCKET, SO_REUSEADDR, (char *)&tmp,
sizeof(tmp));
/* Enable TCP keep alive process. */
tmp = 1;
setsockopt (remote_desc, SOL_SOCKET, SO_KEEPALIVE, (char *)&tmp, sizeof(tmp));
sockaddr.sin_family = PF_INET;
sockaddr.sin_port = htons(port);
sockaddr.sin_addr.s_addr = INADDR_ANY;
if (bind (remote_desc, &sockaddr, sizeof (sockaddr))
|| listen (remote_desc, 1))
perror_with_name ("Can't bind address");
tmp = sizeof (sockaddr);
remote_desc = accept (remote_desc, &sockaddr, &tmp);
if (remote_desc == -1)
perror_with_name ("Accept failed");
tmp = 1;
setsockopt (remote_desc, 6, TCP_NODELAY, (char *)&tmp, sizeof(tmp));
}
fprintf (stderr, "Remote debugging using %s\n", name);
remote_debugging = 1;
@@ -148,9 +196,24 @@ putpkt (buf)
static int
readchar ()
{
char buf[1];
while (read (remote_desc, buf, 1) != 1);
return buf[0] & 0x7f;
static char buf[BUFSIZ];
static int bufcnt = 0;
static char *bufp;
if (bufcnt-- > 0)
return *bufp++ & 0x7f;
bufcnt = read (remote_desc, buf, sizeof (buf));
if (bufcnt <= 0)
{
perror ("readchar");
fatal ("read error, quitting");
}
bufp = buf;
bufcnt--;
return *bufp++ & 0x7f;
}
/* Read a packet from the remote machine, with error checking,
@@ -161,12 +224,13 @@ getpkt (buf)
char *buf;
{
char *bp;
unsigned char csum, c, c1, c2;
extern kiodebug;
unsigned char csum, c1, c2;
int c;
while (1)
{
csum = 0;
while ((c = readchar ()) != '$');
bp = buf;