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9c3d6531 TT |
1 | /* Low-level RSP routines for GDB, the GNU debugger. |
2 | ||
32d0add0 | 3 | Copyright (C) 1988-2015 Free Software Foundation, Inc. |
9c3d6531 TT |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #ifndef COMMON_RSP_LOW_H | |
21 | #define COMMON_RSP_LOW_H | |
22 | ||
23 | /* Convert hex digit A to a number, or throw an exception. */ | |
24 | ||
25 | extern int fromhex (int a); | |
26 | ||
27 | /* Convert number NIB to a hex digit. */ | |
28 | ||
29 | extern int tohex (int nib); | |
30 | ||
9d2d0b8b TT |
31 | /* Write a character representing the low order four bits of NIBBLE in |
32 | hex to *BUF. Returns BUF+1. */ | |
33 | ||
9c3d6531 TT |
34 | extern char *pack_nibble (char *buf, int nibble); |
35 | ||
9d2d0b8b TT |
36 | /* Write the low byte of BYTE in hex to *BUF. Returns BUF+2. */ |
37 | ||
9c3d6531 TT |
38 | extern char *pack_hex_byte (char *pkt, int byte); |
39 | ||
9d2d0b8b TT |
40 | /* Read hex digits from BUFF and convert to a number, which is stored |
41 | in RESULT. Reads until a non-hex digit is seen. Returns a pointer | |
42 | to the terminating character. */ | |
43 | ||
9c3d6531 TT |
44 | extern char *unpack_varlen_hex (char *buff, ULONGEST *result); |
45 | ||
9d2d0b8b TT |
46 | /* HEX is a string of characters representing hexadecimal digits. |
47 | Convert pairs of hex digits to bytes and store sequentially into | |
48 | BIN. COUNT is the maximum number of characters to convert. This | |
49 | will convert fewer characters if the number of hex characters | |
50 | actually seen is odd, or if HEX terminates before COUNT characters. | |
51 | Returns the number of characters actually converted. */ | |
52 | ||
9c3d6531 TT |
53 | extern int hex2bin (const char *hex, gdb_byte *bin, int count); |
54 | ||
9d2d0b8b TT |
55 | /* Convert some bytes to a hexadecimal representation. BIN holds the |
56 | bytes to convert. COUNT says how many bytes to convert. The | |
57 | resulting characters are stored in HEX, followed by a NUL | |
58 | character. Returns the number of bytes actually converted. */ | |
59 | ||
9c3d6531 TT |
60 | extern int bin2hex (const gdb_byte *bin, char *hex, int count); |
61 | ||
124e13d9 SM |
62 | /* Convert BUFFER, binary data at least LEN_UNITS addressable memory units |
63 | long, into escaped binary data in OUT_BUF. Only copy memory units that fit | |
64 | completely in OUT_BUF. Set *OUT_LEN_UNITS to the number of units from | |
65 | BUFFER successfully encoded in OUT_BUF, and return the number of bytes used | |
66 | in OUT_BUF. The total number of bytes in the output buffer will be at most | |
67 | OUT_MAXLEN_BYTES. This function properly escapes '*', and so is suitable | |
9c3d6531 TT |
68 | for the server side as well as the client. */ |
69 | ||
124e13d9 SM |
70 | extern int remote_escape_output (const gdb_byte *buffer, int len_units, |
71 | int unit_size, gdb_byte *out_buf, | |
72 | int *out_len_units, int out_maxlen_bytes); | |
9c3d6531 TT |
73 | |
74 | /* Convert BUFFER, escaped data LEN bytes long, into binary data | |
75 | in OUT_BUF. Return the number of bytes written to OUT_BUF. | |
76 | Raise an error if the total number of bytes exceeds OUT_MAXLEN. | |
77 | ||
78 | This function reverses remote_escape_output. */ | |
79 | ||
80 | extern int remote_unescape_input (const gdb_byte *buffer, int len, | |
81 | gdb_byte *out_buf, int out_maxlen); | |
82 | ||
83 | #endif /* COMMON_RSP_LOW_H */ |