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 * $FreeBSD$ 29 */ 30 31 #ifndef _GDB_GDB_INT_H_ 32 #define _GDB_GDB_INT_H_ 33 34 #include <sys/sysctl.h> 35 36 #ifndef EOF 37 #define EOF (-1) 38 #endif 39 40 SYSCTL_DECL(_debug_gdb); 41 42 extern struct gdb_dbgport *gdb_cur; 43 44 extern int gdb_listening; 45 void gdb_consinit(void); 46 47 extern char *gdb_rxp; 48 extern size_t gdb_rxsz; 49 extern char *gdb_txp; 50 51 int gdb_rx_begin(void); 52 int gdb_rx_equal(const char *); 53 int gdb_rx_mem(unsigned char *, size_t); 54 int gdb_rx_varhex(uintmax_t *); 55 56 static __inline int 57 gdb_rx_char(void) 58 { 59 int c; 60 61 if (gdb_rxsz > 0) { 62 c = *gdb_rxp++; 63 gdb_rxsz--; 64 } else 65 c = EOF; 66 return (c); 67 } 68 69 void gdb_tx_begin(char); 70 int gdb_tx_end(void); 71 int gdb_tx_mem(const unsigned char *, size_t); 72 void gdb_tx_reg(int); 73 bool gdb_txbuf_has_capacity(size_t); 74 int gdb_rx_bindata(unsigned char *data, size_t datalen, size_t *amt); 75 int gdb_search_mem(const unsigned char *addr, size_t size, 76 const unsigned char *pat, size_t patlen, const unsigned char **found); 77 78 static __inline void 79 gdb_tx_char(char c) 80 { 81 *gdb_txp++ = c; 82 } 83 84 static __inline int 85 gdb_tx_empty(void) 86 { 87 gdb_tx_begin('\0'); 88 return (gdb_tx_end()); 89 } 90 91 static __inline void 92 gdb_tx_hex(uintmax_t n, int sz) 93 { 94 gdb_txp += sprintf(gdb_txp, "%0*jx", sz, n); 95 } 96 97 static __inline int 98 gdb_tx_err(int err) 99 { 100 gdb_tx_begin('E'); 101 gdb_tx_hex(err, 2); 102 return (gdb_tx_end()); 103 } 104 105 static __inline int 106 gdb_tx_ok(void) 107 { 108 gdb_tx_begin('O'); 109 gdb_tx_char('K'); 110 return (gdb_tx_end()); 111 } 112 113 static __inline void 114 gdb_tx_str(const char *s) 115 { 116 while (*s) 117 *gdb_txp++ = *s++; 118 } 119 120 static __inline void 121 gdb_tx_varhex(uintmax_t n) 122 { 123 gdb_txp += sprintf(gdb_txp, "%jx", n); 124 } 125 126 #endif /* !_GDB_GDB_INT_H_ */ 127