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  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2004 Marcel Moolenaar
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  *
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * $FreeBSD: releng/12.0/sys/gdb/gdb_int.h 326269 2017-11-27 15:16:59Z pfg $
   29  */
   30 
   31 #ifndef _GDB_GDB_INT_H_
   32 #define _GDB_GDB_INT_H_
   33 
   34 extern struct gdb_dbgport *gdb_cur;
   35 
   36 extern int gdb_listening;
   37 void gdb_consinit(void);
   38 
   39 extern char *gdb_rxp;
   40 extern size_t gdb_rxsz;
   41 extern char *gdb_txp;
   42 
   43 int gdb_rx_begin(void);
   44 int gdb_rx_equal(const char *);
   45 int gdb_rx_mem(unsigned char *, size_t);
   46 int gdb_rx_varhex(uintmax_t *);
   47 
   48 static __inline int
   49 gdb_rx_char(void)
   50 {
   51         int c;
   52 
   53         if (gdb_rxsz > 0) {
   54                 c = *gdb_rxp++;
   55                 gdb_rxsz--;
   56         } else
   57                 c = -1;
   58         return (c);
   59 }
   60 
   61 void gdb_tx_begin(char);
   62 int gdb_tx_end(void);
   63 int gdb_tx_mem(const unsigned char *, size_t);
   64 void gdb_tx_reg(int);
   65 int gdb_rx_bindata(unsigned char *data, size_t datalen, size_t *amt);
   66 int gdb_search_mem(const unsigned char *addr, size_t size,
   67     const unsigned char *pat, size_t patlen, const unsigned char **found);
   68 
   69 static __inline void
   70 gdb_tx_char(char c)
   71 {
   72         *gdb_txp++ = c;
   73 }
   74 
   75 static __inline int
   76 gdb_tx_empty(void)
   77 {
   78         gdb_tx_begin('\0');
   79         return (gdb_tx_end());
   80 }
   81 
   82 static __inline void
   83 gdb_tx_hex(uintmax_t n, int sz)
   84 {
   85         gdb_txp += sprintf(gdb_txp, "%0*jx", sz, n);
   86 }
   87 
   88 static __inline int
   89 gdb_tx_err(int err)
   90 {
   91         gdb_tx_begin('E');
   92         gdb_tx_hex(err, 2);
   93         return (gdb_tx_end());
   94 }
   95 
   96 static __inline int
   97 gdb_tx_ok(void)
   98 {
   99         gdb_tx_begin('O');
  100         gdb_tx_char('K');
  101         return (gdb_tx_end());
  102 }
  103 
  104 static __inline void
  105 gdb_tx_str(const char *s)
  106 {
  107         while (*s)
  108                 *gdb_txp++ = *s++;
  109 }
  110 
  111 static __inline void
  112 gdb_tx_varhex(uintmax_t n)
  113 {
  114         gdb_txp += sprintf(gdb_txp, "%jx", n);
  115 }
  116 
  117 #endif /* !_GDB_GDB_INT_H_ */

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