The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/gdb/gdb_int.h

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    1 /*-
    2  * Copyright (c) 2004 Marcel Moolenaar
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  *
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/10.1/sys/gdb/gdb_int.h 157059 2006-03-23 23:06:14Z sam $
   27  */
   28 
   29 #ifndef _GDB_GDB_INT_H_
   30 #define _GDB_GDB_INT_H_
   31 
   32 extern struct gdb_dbgport *gdb_cur;
   33 
   34 extern int gdb_listening;
   35 void gdb_consinit(void);
   36 
   37 extern char *gdb_rxp;
   38 extern size_t gdb_rxsz;
   39 extern char *gdb_txp;
   40 
   41 int gdb_rx_begin(void);
   42 int gdb_rx_equal(const char *);
   43 int gdb_rx_mem(unsigned char *, size_t);
   44 int gdb_rx_varhex(uintmax_t *);
   45 
   46 static __inline int
   47 gdb_rx_char(void)
   48 {
   49         int c;
   50 
   51         if (gdb_rxsz > 0) {
   52                 c = *gdb_rxp++;
   53                 gdb_rxsz--;
   54         } else
   55                 c = -1;
   56         return (c);
   57 }
   58 
   59 void gdb_tx_begin(char);
   60 int gdb_tx_end(void);
   61 int gdb_tx_mem(const unsigned char *, size_t);
   62 void gdb_tx_reg(int);
   63 
   64 static __inline void
   65 gdb_tx_char(char c)
   66 {
   67         *gdb_txp++ = c;
   68 }
   69 
   70 static __inline int
   71 gdb_tx_empty(void)
   72 {
   73         gdb_tx_begin('\0');
   74         return (gdb_tx_end());
   75 }
   76 
   77 static __inline void
   78 gdb_tx_hex(uintmax_t n, int sz)
   79 {
   80         gdb_txp += sprintf(gdb_txp, "%0*jx", sz, n);
   81 }
   82 
   83 static __inline int
   84 gdb_tx_err(int err)
   85 {
   86         gdb_tx_begin('E');
   87         gdb_tx_hex(err, 2);
   88         return (gdb_tx_end());
   89 }
   90 
   91 static __inline int
   92 gdb_tx_ok(void)
   93 {
   94         gdb_tx_begin('O');
   95         gdb_tx_char('K');
   96         return (gdb_tx_end());
   97 }
   98 
   99 static __inline void
  100 gdb_tx_str(const char *s)
  101 {
  102         while (*s)
  103                 *gdb_txp++ = *s++;
  104 }
  105 
  106 static __inline void
  107 gdb_tx_varhex(uintmax_t n)
  108 {
  109         gdb_txp += sprintf(gdb_txp, "%jx", n);
  110 }
  111 
  112 #endif /* !_GDB_GDB_INT_H_ */

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