1 /* General utility routines for the remote server for GDB. 2 Copyright (C) 1986-2020 Free Software Foundation, Inc. 3 4 This file is part of GDB. 5 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. 10 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. 15 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/>. */ 18 19 #include "server.h" 20 21 #ifdef IN_PROCESS_AGENT 22 # define PREFIX "ipa: " 23 # define TOOLNAME "GDBserver in-process agent" 24 #else 25 # define PREFIX "gdbserver: " 26 # define TOOLNAME "GDBserver" 27 #endif 28 29 /* Generally useful subroutines used throughout the program. */ 30 31 void 32 malloc_failure (long size) 33 { 34 fprintf (stderr, 35 PREFIX "ran out of memory while trying to allocate %lu bytes\n", 36 (unsigned long) size); 37 exit (1); 38 } 39 40 /* Print the system error message for errno, and also mention STRING 41 as the file name for which the error was encountered. 42 Then return to command level. */ 43 44 void 45 perror_with_name (const char *string) 46 { 47 const char *err; 48 char *combined; 49 50 err = safe_strerror (errno); 51 if (err == NULL) 52 err = "unknown error"; 53 54 combined = (char *) alloca (strlen (err) + strlen (string) + 3); 55 strcpy (combined, string); 56 strcat (combined, ": "); 57 strcat (combined, err); 58 59 error ("%s.", combined); 60 } 61 62 /* Print an error message and return to top level. */ 63 64 void 65 verror (const char *string, va_list args) 66 { 67 #ifdef IN_PROCESS_AGENT 68 fflush (stdout); 69 vfprintf (stderr, string, args); 70 fprintf (stderr, "\n"); 71 exit (1); 72 #else 73 throw_verror (GENERIC_ERROR, string, args); 74 #endif 75 } 76 77 void 78 vwarning (const char *string, va_list args) 79 { 80 fprintf (stderr, PREFIX); 81 vfprintf (stderr, string, args); 82 fprintf (stderr, "\n"); 83 } 84 85 /* Report a problem internal to GDBserver, and exit. */ 86 87 void 88 internal_verror (const char *file, int line, const char *fmt, va_list args) 89 { 90 fprintf (stderr, "\ 91 %s:%d: A problem internal to " TOOLNAME " has been detected.\n", file, line); 92 vfprintf (stderr, fmt, args); 93 fprintf (stderr, "\n"); 94 exit (1); 95 } 96 97 /* Report a problem internal to GDBserver. */ 98 99 void 100 internal_vwarning (const char *file, int line, const char *fmt, va_list args) 101 { 102 fprintf (stderr, "\ 103 %s:%d: A problem internal to " TOOLNAME " has been detected.\n", file, line); 104 vfprintf (stderr, fmt, args); 105 fprintf (stderr, "\n"); 106 } 107 108 /* Convert a CORE_ADDR into a HEX string, like %lx. 109 The result is stored in a circular static buffer, NUMCELLS deep. */ 110 111 char * 112 paddress (CORE_ADDR addr) 113 { 114 return phex_nz (addr, sizeof (CORE_ADDR)); 115 } 116