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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2004 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _GDB_GDB_INT_H_
#define _GDB_GDB_INT_H_
#include "opt_ddb.h"
#include <sys/sysctl.h>
#ifdef DDB
#include <ddb/ddb.h>
#endif
#ifndef EOF
#define EOF (-1)
#endif
SYSCTL_DECL(_debug_gdb);
extern struct gdb_dbgport *gdb_cur;
extern int gdb_listening;
void gdb_consinit(void);
extern char *gdb_rxp;
extern size_t gdb_rxsz;
extern char *gdb_txp;
extern bool gdb_ackmode;
#ifdef DDB
/* If set, return to DDB when controlling GDB detaches. */
extern bool gdb_return_to_ddb;
#endif
int gdb_rx_begin(void);
int gdb_rx_equal(const char *);
int gdb_rx_mem(unsigned char *, size_t);
int gdb_rx_varhex(uintmax_t *);
static __inline int
gdb_rx_char(void)
{
int c;
if (gdb_rxsz > 0) {
c = *gdb_rxp++;
gdb_rxsz--;
} else
c = EOF;
return (c);
}
void gdb_tx_begin(char);
int gdb_tx_end(void);
int gdb_tx_mem(const unsigned char *, size_t);
void gdb_tx_reg(int);
bool gdb_txbuf_has_capacity(size_t);
int gdb_rx_bindata(unsigned char *data, size_t datalen, size_t *amt);
int gdb_search_mem(const unsigned char *addr, size_t size,
const unsigned char *pat, size_t patlen, const unsigned char **found);
static __inline void
gdb_tx_char(char c)
{
*gdb_txp++ = c;
}
static __inline int
gdb_tx_empty(void)
{
gdb_tx_begin('\0');
return (gdb_tx_end());
}
static __inline void
gdb_tx_hex(uintmax_t n, int sz)
{
gdb_txp += sprintf(gdb_txp, "%0*jx", sz, n);
}
static __inline int
gdb_tx_err(int err)
{
gdb_tx_begin('E');
gdb_tx_hex(err, 2);
return (gdb_tx_end());
}
static __inline int
gdb_tx_ok(void)
{
gdb_tx_begin('O');
gdb_tx_char('K');
return (gdb_tx_end());
}
static __inline void
gdb_tx_str(const char *s)
{
while (*s)
*gdb_txp++ = *s++;
}
static __inline void
gdb_tx_varhex(uintmax_t n)
{
gdb_txp += sprintf(gdb_txp, "%jx", n);
}
static __inline void
gdb_nack(void)
{
if (gdb_ackmode)
gdb_cur->gdb_putc('-');
}
static __inline void
gdb_ack(void)
{
if (gdb_ackmode)
gdb_cur->gdb_putc('+');
}
#endif /* !_GDB_GDB_INT_H_ */
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