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/11.1/sys/gdb/gdb_int.h 271173 2014-09-05 16:40:47Z benno $
   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 int gdb_rx_bindata(unsigned char *data, size_t datalen, size_t *amt);
   64 int gdb_search_mem(const unsigned char *addr, size_t size,
   65     const unsigned char *pat, size_t patlen, const unsigned char **found);
   66 
   67 static __inline void
   68 gdb_tx_char(char c)
   69 {
   70         *gdb_txp++ = c;
   71 }
   72 
   73 static __inline int
   74 gdb_tx_empty(void)
   75 {
   76         gdb_tx_begin('\0');
   77         return (gdb_tx_end());
   78 }
   79 
   80 static __inline void
   81 gdb_tx_hex(uintmax_t n, int sz)
   82 {
   83         gdb_txp += sprintf(gdb_txp, "%0*jx", sz, n);
   84 }
   85 
   86 static __inline int
   87 gdb_tx_err(int err)
   88 {
   89         gdb_tx_begin('E');
   90         gdb_tx_hex(err, 2);
   91         return (gdb_tx_end());
   92 }
   93 
   94 static __inline int
   95 gdb_tx_ok(void)
   96 {
   97         gdb_tx_begin('O');
   98         gdb_tx_char('K');
   99         return (gdb_tx_end());
  100 }
  101 
  102 static __inline void
  103 gdb_tx_str(const char *s)
  104 {
  105         while (*s)
  106                 *gdb_txp++ = *s++;
  107 }
  108 
  109 static __inline void
  110 gdb_tx_varhex(uintmax_t n)
  111 {
  112         gdb_txp += sprintf(gdb_txp, "%jx", n);
  113 }
  114 
  115 #endif /* !_GDB_GDB_INT_H_ */

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