| 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 | |
| 117 | /* Convert a file descriptor into a printable string. */ |
| 118 | |
| 119 | char * |
| 120 | pfildes (gdb_fildes_t fd) |
| 121 | { |
| 122 | #if USE_WIN32API |
| 123 | return phex_nz (fd, sizeof (gdb_fildes_t)); |
| 124 | #else |
| 125 | return plongest (fd); |
| 126 | #endif |
| 127 | } |