1 /* General utility routines for the remote server for GDB.
2 Copyright (C) 1986-2014 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
27 #ifdef IN_PROCESS_AGENT
28 # define PREFIX "ipa: "
29 # define TOOLNAME "GDBserver in-process agent"
31 # define PREFIX "gdbserver: "
32 # define TOOLNAME "GDBserver"
35 /* Generally useful subroutines used throughout the program. */
38 malloc_failure (long size
)
41 PREFIX
"ran out of memory while trying to allocate %lu bytes\n",
42 (unsigned long) size
);
46 /* Copy a string into a memory buffer.
47 If malloc fails, this will print a message to stderr and exit. */
50 xstrdup (const char *s
)
52 char *ret
= strdup (s
);
54 malloc_failure (strlen (s
) + 1);
58 #ifndef IN_PROCESS_AGENT
60 /* Free a standard argv vector. */
63 freeargv (char **vector
)
69 for (scan
= vector
; *scan
!= NULL
; scan
++)
79 /* Print the system error message for errno, and also mention STRING
80 as the file name for which the error was encountered.
81 Then return to command level. */
84 perror_with_name (const char *string
)
89 err
= strerror (errno
);
91 err
= "unknown error";
93 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
94 strcpy (combined
, string
);
95 strcat (combined
, ": ");
96 strcat (combined
, err
);
98 error ("%s.", combined
);
101 /* Print an error message and return to command level.
102 STRING is the error message, used as a fprintf string,
103 and ARG is passed as an argument to it. */
106 error (const char *string
,...)
108 #ifndef IN_PROCESS_AGENT
109 extern jmp_buf toplevel
;
112 va_start (args
, string
);
114 vfprintf (stderr
, string
, args
);
115 fprintf (stderr
, "\n");
116 #ifndef IN_PROCESS_AGENT
117 longjmp (toplevel
, 1);
123 /* Print an error message and exit reporting failure.
124 This is for a error that we cannot continue from.
125 STRING and ARG are passed to fprintf. */
129 fatal (const char *string
,...)
132 va_start (args
, string
);
133 fprintf (stderr
, PREFIX
);
134 vfprintf (stderr
, string
, args
);
135 fprintf (stderr
, "\n");
142 warning (const char *string
,...)
145 va_start (args
, string
);
146 fprintf (stderr
, PREFIX
);
147 vfprintf (stderr
, string
, args
);
148 fprintf (stderr
, "\n");
152 /* Report a problem internal to GDBserver, and exit. */
155 internal_error (const char *file
, int line
, const char *fmt
, ...)
158 va_start (args
, fmt
);
161 %s:%d: A problem internal to " TOOLNAME
" has been detected.\n", file
, line
);
162 vfprintf (stderr
, fmt
, args
);
163 fprintf (stderr
, "\n");
168 /* Temporary storage using circular buffer. */
172 /* Return the next entry in the circular buffer. */
177 static char buf
[NUMCELLS
][CELLSIZE
];
179 if (++cell
>= NUMCELLS
)
185 decimal2str (char *sign
, ULONGEST addr
)
187 /* Steal code from valprint.c:print_decimal(). Should this worry
188 about the real size of addr as the above does? */
189 unsigned long temp
[3];
190 char *str
= get_cell ();
196 temp
[i
] = addr
% (1000 * 1000 * 1000);
197 addr
/= (1000 * 1000 * 1000);
200 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
205 xsnprintf (str
, CELLSIZE
, "%s%0*lu", sign
, width
, temp
[0]);
208 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu", sign
, width
,
212 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu%09lu", sign
, width
,
213 temp
[2], temp
[1], temp
[0]);
216 internal_error (__FILE__
, __LINE__
,
217 "failed internal consistency check");
223 /* %u for ULONGEST. The result is stored in a circular static buffer,
227 pulongest (ULONGEST u
)
229 return decimal2str ("", u
);
232 /* %d for LONGEST. The result is stored in a circular static buffer,
239 return decimal2str ("-", -l
);
241 return decimal2str ("", l
);
244 /* Eliminate warning from compiler on 32-bit systems. */
245 static int thirty_two
= 32;
247 /* Convert a ULONGEST into a HEX string, like %lx. The result is
248 stored in a circular static buffer, NUMCELLS deep. */
251 phex_nz (ULONGEST l
, int sizeof_l
)
259 unsigned long high
= (unsigned long) (l
>> thirty_two
);
262 xsnprintf (str
, CELLSIZE
, "%lx",
263 (unsigned long) (l
& 0xffffffff));
265 xsnprintf (str
, CELLSIZE
, "%lx%08lx", high
,
266 (unsigned long) (l
& 0xffffffff));
271 xsnprintf (str
, CELLSIZE
, "%lx", (unsigned long) l
);
275 xsnprintf (str
, CELLSIZE
, "%x", (unsigned short) (l
& 0xffff));
278 str
= phex_nz (l
, sizeof (l
));
285 /* Convert a CORE_ADDR into a HEX string, like %lx.
286 The result is stored in a circular static buffer, NUMCELLS deep. */
289 paddress (CORE_ADDR addr
)
291 return phex_nz (addr
, sizeof (CORE_ADDR
));
294 /* Convert a file descriptor into a printable string. */
297 pfildes (gdb_fildes_t fd
)
300 return phex_nz (fd
, sizeof (gdb_fildes_t
));
302 return plongest (fd
);
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