1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/* General utility routines for the remote server for GDB.
Copyright (C) 1986, 1989, 1993, 1995, 1996, 1997, 1999, 2000, 2002, 2003,
2007, 2008, 2009 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/>. */
#include "server.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#if HAVE_ERRNO_H
#include <errno.h>
#endif
#if HAVE_MALLOC_H
#include <malloc.h>
#endif
/* Generally useful subroutines used throughout the program. */
static void malloc_failure (size_t size) ATTR_NORETURN;
static void
malloc_failure (size_t size)
{
fprintf (stderr, "gdbserver: ran out of memory while trying to allocate %lu bytes\n",
(unsigned long) size);
exit (1);
}
/* Allocate memory without fail.
If malloc fails, this will print a message to stderr and exit. */
void *
xmalloc (size_t size)
{
void *newmem;
if (size == 0)
size = 1;
newmem = malloc (size);
if (!newmem)
malloc_failure (size);
return newmem;
}
/* Allocate memory without fail and set it to zero.
If malloc fails, this will print a message to stderr and exit. */
void *
xcalloc (size_t nelem, size_t elsize)
{
void *newmem;
if (nelem == 0 || elsize == 0)
nelem = elsize = 1;
newmem = calloc (nelem, elsize);
if (!newmem)
malloc_failure (nelem * elsize);
return newmem;
}
/* Copy a string into a memory buffer.
If malloc fails, this will print a message to stderr and exit. */
char *
xstrdup (const char *s)
{
char *ret = strdup (s);
if (ret == NULL)
malloc_failure (strlen (s) + 1);
return ret;
}
/* Print the system error message for errno, and also mention STRING
as the file name for which the error was encountered.
Then return to command level. */
void
perror_with_name (char *string)
{
const char *err;
char *combined;
err = strerror (errno);
if (err == NULL)
err = "unknown error";
combined = (char *) alloca (strlen (err) + strlen (string) + 3);
strcpy (combined, string);
strcat (combined, ": ");
strcat (combined, err);
error ("%s.", combined);
}
/* Print an error message and return to command level.
STRING is the error message, used as a fprintf string,
and ARG is passed as an argument to it. */
void
error (const char *string,...)
{
extern jmp_buf toplevel;
va_list args;
va_start (args, string);
fflush (stdout);
vfprintf (stderr, string, args);
fprintf (stderr, "\n");
longjmp (toplevel, 1);
}
/* Print an error message and exit reporting failure.
This is for a error that we cannot continue from.
STRING and ARG are passed to fprintf. */
/* VARARGS */
void
fatal (const char *string,...)
{
va_list args;
va_start (args, string);
fprintf (stderr, "gdbserver: ");
vfprintf (stderr, string, args);
fprintf (stderr, "\n");
va_end (args);
exit (1);
}
/* VARARGS */
void
warning (const char *string,...)
{
va_list args;
va_start (args, string);
fprintf (stderr, "gdbserver: ");
vfprintf (stderr, string, args);
fprintf (stderr, "\n");
va_end (args);
}
|
