/* Remote utility routines for the remote server for GDB.
- Copyright (C) 1986-2013 Free Software Foundation, Inc.
+ Copyright (C) 1986-2014 Free Software Foundation, Inc.
This file is part of GDB.
#include "target.h"
#include "gdbthread.h"
#include "tdesc.h"
+#include "dll.h"
+#include "rsp-low.h"
+
#include <stdio.h>
#include <string.h>
#if HAVE_SYS_IOCTL_H
#include <fcntl.h>
#endif
#include <sys/time.h>
-#if HAVE_UNISTD_H
#include <unistd.h>
-#endif
#if HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
-#include "gdb_stat.h"
+#include <sys/stat.h>
#if HAVE_ERRNO_H
#include <errno.h>
#endif
socklen_t tmp;
if (debug_threads)
- fprintf (stderr, "handling possible accept event\n");
+ debug_printf ("handling possible accept event\n");
tmp = sizeof (sockaddr);
remote_desc = accept (listen_desc, (struct sockaddr *) &sockaddr, &tmp);
reset_readchar ();
}
-/* Convert hex digit A to a number. */
-
-static int
-fromhex (int a)
-{
- if (a >= '0' && a <= '9')
- return a - '0';
- else if (a >= 'a' && a <= 'f')
- return a - 'a' + 10;
- else
- error ("Reply contains invalid hex digit");
- return 0;
-}
-
#endif
-static const char hexchars[] = "0123456789abcdef";
-
-static int
-ishex (int ch, int *val)
-{
- if ((ch >= 'a') && (ch <= 'f'))
- {
- *val = ch - 'a' + 10;
- return 1;
- }
- if ((ch >= 'A') && (ch <= 'F'))
- {
- *val = ch - 'A' + 10;
- return 1;
- }
- if ((ch >= '0') && (ch <= '9'))
- {
- *val = ch - '0';
- return 1;
- }
- return 0;
-}
-
#ifndef IN_PROCESS_AGENT
-int
-unhexify (char *bin, const char *hex, int count)
-{
- int i;
-
- for (i = 0; i < count; i++)
- {
- if (hex[0] == 0 || hex[1] == 0)
- {
- /* Hex string is short, or of uneven length.
- Return the count that has been converted so far. */
- return i;
- }
- *bin++ = fromhex (hex[0]) * 16 + fromhex (hex[1]);
- hex += 2;
- }
- return i;
-}
-
void
decode_address (CORE_ADDR *addrp, const char *start, int len)
{
#endif
-/* Convert number NIB to a hex digit. */
-
-static int
-tohex (int nib)
-{
- if (nib < 10)
- return '0' + nib;
- else
- return 'a' + nib - 10;
-}
-
#ifndef IN_PROCESS_AGENT
-int
-hexify (char *hex, const char *bin, int count)
-{
- int i;
-
- /* May use a length, or a nul-terminated string as input. */
- if (count == 0)
- count = strlen (bin);
-
- for (i = 0; i < count; i++)
- {
- *hex++ = tohex ((*bin >> 4) & 0xf);
- *hex++ = tohex (*bin++ & 0xf);
- }
- *hex = 0;
- return i;
-}
-
-/* Convert BUFFER, binary data at least LEN bytes long, into escaped
- binary data in OUT_BUF. Set *OUT_LEN to the length of the data
- encoded in OUT_BUF, and return the number of bytes in OUT_BUF
- (which may be more than *OUT_LEN due to escape characters). The
- total number of bytes in the output buffer will be at most
- OUT_MAXLEN. */
-
-int
-remote_escape_output (const gdb_byte *buffer, int len,
- gdb_byte *out_buf, int *out_len,
- int out_maxlen)
-{
- int input_index, output_index;
-
- output_index = 0;
- for (input_index = 0; input_index < len; input_index++)
- {
- gdb_byte b = buffer[input_index];
-
- if (b == '$' || b == '#' || b == '}' || b == '*')
- {
- /* These must be escaped. */
- if (output_index + 2 > out_maxlen)
- break;
- out_buf[output_index++] = '}';
- out_buf[output_index++] = b ^ 0x20;
- }
- else
- {
- if (output_index + 1 > out_maxlen)
- break;
- out_buf[output_index++] = b;
- }
- }
-
- *out_len = input_index;
- return output_index;
-}
-
-/* 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. It allows more
- escaped characters than that function does, in particular because
- '*' must be escaped to avoid the run-length encoding processing
- in reading packets. */
-
-static int
-remote_unescape_input (const gdb_byte *buffer, int len,
- gdb_byte *out_buf, int out_maxlen)
-{
- int input_index, output_index;
- int escaped;
-
- output_index = 0;
- escaped = 0;
- for (input_index = 0; input_index < len; input_index++)
- {
- gdb_byte b = buffer[input_index];
-
- if (output_index + 1 > out_maxlen)
- error ("Received too much data from the target.");
-
- if (escaped)
- {
- out_buf[output_index++] = b ^ 0x20;
- escaped = 0;
- }
- else if (b == '}')
- escaped = 1;
- else
- out_buf[output_index++] = b;
- }
-
- if (escaped)
- error ("Unmatched escape character in target response.");
-
- return output_index;
-}
-
/* Look for a sequence of characters which can be run-length encoded.
If there are any, update *CSUM and *P. Otherwise, output the
single character. Return the number of characters consumed. */
#endif
-char *
-unpack_varlen_hex (char *buff, /* packet to parse */
- ULONGEST *result)
-{
- int nibble;
- ULONGEST retval = 0;
-
- while (ishex (*buff, &nibble))
- {
- buff++;
- retval = retval << 4;
- retval |= nibble & 0x0f;
- }
- *result = retval;
- return buff;
-}
-
#ifndef IN_PROCESS_AGENT
/* Write a PTID to BUF. Returns BUF+CHARACTERS_WRITTEN. */
#endif
-void
-convert_int_to_ascii (const unsigned char *from, char *to, int n)
-{
- int nib;
- int ch;
- while (n--)
- {
- ch = *from++;
- nib = ((ch & 0xf0) >> 4) & 0x0f;
- *to++ = tohex (nib);
- nib = ch & 0x0f;
- *to++ = tohex (nib);
- }
- *to++ = 0;
-}
-
#ifndef IN_PROCESS_AGENT
-void
-convert_ascii_to_int (const char *from, unsigned char *to, int n)
-{
- int nib1, nib2;
- while (n--)
- {
- nib1 = fromhex (*from++);
- nib2 = fromhex (*from++);
- *to++ = (((nib1 & 0x0f) << 4) & 0xf0) | (nib2 & 0x0f);
- }
-}
-
static char *
outreg (struct regcache *regcache, int regno, char *buf)
{
struct target_waitstatus *status)
{
if (debug_threads)
- fprintf (stderr, "Writing resume reply for %s:%d\n",
- target_pid_to_str (ptid), status->kind);
+ debug_printf ("Writing resume reply for %s:%d\n",
+ target_pid_to_str (ptid), status->kind);
switch (status->kind)
{
/* Send the request. */
strcpy (own_buf, "qSymbol:");
- hexify (own_buf + strlen ("qSymbol:"), name, strlen (name));
+ bin2hex ((const gdb_byte *) name, own_buf + strlen ("qSymbol:"),
+ strlen (name));
if (putpkt (own_buf) < 0)
return -1;
decode_m_packet (&own_buf[1], &mem_addr, &mem_len);
mem_buf = xmalloc (mem_len);
if (read_inferior_memory (mem_addr, mem_buf, mem_len) == 0)
- convert_int_to_ascii (mem_buf, own_buf, mem_len);
+ bin2hex (mem_buf, own_buf, mem_len);
else
write_enn (own_buf);
free (mem_buf);
decode_m_packet (&own_buf[1], &mem_addr, &mem_len);
mem_buf = xmalloc (mem_len);
if (read_inferior_memory (mem_addr, mem_buf, mem_len) == 0)
- convert_int_to_ascii (mem_buf, own_buf, mem_len);
+ bin2hex (mem_buf, own_buf, mem_len);
else
write_enn (own_buf);
}
void
monitor_output (const char *msg)
{
- char *buf = xmalloc (strlen (msg) * 2 + 2);
+ int len = strlen (msg);
+ char *buf = xmalloc (len * 2 + 2);
buf[0] = 'O';
- hexify (buf + 1, msg, 0);
+ bin2hex ((const gdb_byte *) msg, buf + 1, len);
putpkt (buf);
free (buf);