aboutsummaryrefslogtreecommitdiff
path: root/gdb/gdbserver/utils.c
blob: 307d15a4144916516c9b68c9a6f120c11550ed77 (plain)
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
/* General utility routines for the remote server for GDB.
   Copyright (C) 1986-2017 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"

#ifdef IN_PROCESS_AGENT
#  define PREFIX "ipa: "
#  define TOOLNAME "GDBserver in-process agent"
#else
#  define PREFIX "gdbserver: "
#  define TOOLNAME "GDBserver"
#endif

/* Generally useful subroutines used throughout the program.  */

void
malloc_failure (long size)
{
  fprintf (stderr,
	   PREFIX "ran out of memory while trying to allocate %lu bytes\n",
	   (unsigned long) size);
  exit (1);
}

/* 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 (const 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 top level.  */

void
verror (const char *string, va_list args)
{
#ifdef IN_PROCESS_AGENT
  fflush (stdout);
  vfprintf (stderr, string, args);
  fprintf (stderr, "\n");
  exit (1);
#else
  throw_verror (GENERIC_ERROR, string, args);
#endif
}

void
vwarning (const char *string, va_list args)
{
  fprintf (stderr, PREFIX);
  vfprintf (stderr, string, args);
  fprintf (stderr, "\n");
}

/* Report a problem internal to GDBserver, and exit.  */

void
internal_verror (const char *file, int line, const char *fmt, va_list args)
{
  fprintf (stderr,  "\
%s:%d: A problem internal to " TOOLNAME " has been detected.\n", file, line);
  vfprintf (stderr, fmt, args);
  fprintf (stderr, "\n");
  exit (1);
}

/* Report a problem internal to GDBserver.  */

void
internal_vwarning (const char *file, int line, const char *fmt, va_list args)
{
  fprintf (stderr,  "\
%s:%d: A problem internal to " TOOLNAME " has been detected.\n", file, line);
  vfprintf (stderr, fmt, args);
  fprintf (stderr, "\n");
}

/* Convert a CORE_ADDR into a HEX string, like %lx.
   The result is stored in a circular static buffer, NUMCELLS deep.  */

char *
paddress (CORE_ADDR addr)
{
  return phex_nz (addr, sizeof (CORE_ADDR));
}

/* Convert a file descriptor into a printable string.  */

char *
pfildes (gdb_fildes_t fd)
{
#if USE_WIN32API
  return phex_nz (fd, sizeof (gdb_fildes_t));
#else
  return plongest (fd);
#endif
}