1 files changed, 101 insertions, 0 deletions
diff --git a/gdbsupport/rsp-low.h b/gdbsupport/rsp-low.h
new file mode 100644
index 00000000000..84eb839d3fa
--- /dev/null
+++ b/gdbsupport/rsp-low.h
@@ -0,0 +1,101 @@
+/* Low-level RSP routines for GDB, the GNU debugger.
+
+   Copyright (C) 1988-2020 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef COMMON_RSP_LOW_H
+#define COMMON_RSP_LOW_H
+
+#include "gdbsupport/byte-vector.h"
+
+/* Convert hex digit A to a number, or throw an exception.  */
+
+extern int fromhex (int a);
+
+/* Convert number NIB to a hex digit.  */
+
+extern int tohex (int nib);
+
+/* Write a character representing the low order four bits of NIBBLE in
+   hex to *BUF.  Returns BUF+1.  */
+
+extern char *pack_nibble (char *buf, int nibble);
+
+/* Write the low byte of BYTE in hex to *BUF.  Returns BUF+2.  */
+
+extern char *pack_hex_byte (char *pkt, int byte);
+
+/* Read hex digits from BUFF and convert to a number, which is stored
+   in RESULT.  Reads until a non-hex digit is seen.  Returns a pointer
+   to the terminating character.  */
+
+extern const char *unpack_varlen_hex (const char *buff, ULONGEST *result);
+
+/* HEX is a string of characters representing hexadecimal digits.
+   Convert pairs of hex digits to bytes and store sequentially into
+   BIN.  COUNT is the maximum number of characters to convert.  This
+   will convert fewer characters if the number of hex characters
+   actually seen is odd, or if HEX terminates before COUNT characters.
+   Returns the number of characters actually converted.  */
+
+extern int hex2bin (const char *hex, gdb_byte *bin, int count);
+
+/* Like the above, but return a gdb::byte_vector.  */
+
+gdb::byte_vector hex2bin (const char *hex);
+
+/* Like hex2bin, but return a std::string.  */
+
+extern std::string hex2str (const char *hex);
+
+/* Like hex2bin, but return a std::string.  */
+
+extern std::string hex2str (const char *hex, int count);
+
+/* Convert some bytes to a hexadecimal representation.  BIN holds the
+   bytes to convert.  COUNT says how many bytes to convert.  The
+   resulting characters are stored in HEX, followed by a NUL
+   character.  Returns the number of bytes actually converted.  */
+
+extern int bin2hex (const gdb_byte *bin, char *hex, int count);
+
+/* Overloaded version of bin2hex that returns a std::string.  */
+
+extern std::string bin2hex (const gdb_byte *bin, int count);
+
+/* Convert BUFFER, binary data at least LEN_UNITS addressable memory units
+   long, into escaped binary data in OUT_BUF.  Only copy memory units that fit
+   completely in OUT_BUF.  Set *OUT_LEN_UNITS to the number of units from
+   BUFFER successfully encoded in OUT_BUF, and return the number of bytes used
+   in OUT_BUF.  The total number of bytes in the output buffer will be at most
+   OUT_MAXLEN_BYTES.  This function properly escapes '*', and so is suitable
+   for the server side as well as the client.  */
+
+extern int remote_escape_output (const gdb_byte *buffer, int len_units,
+				 int unit_size, gdb_byte *out_buf,
+				 int *out_len_units, int out_maxlen_bytes);
+
+/* Convert BUFFER, escaped data LEN bytes long, into binary data
+   in OUT_BUF.  Return the number of bytes written to OUT_BUF.
+   Raise an error if the total number of bytes exceeds OUT_MAXLEN.
+
+   This function reverses remote_escape_output.  */
+
+extern int remote_unescape_input (const gdb_byte *buffer, int len,
+				  gdb_byte *out_buf, int out_maxlen);
+
+#endif /* COMMON_RSP_LOW_H */