binutils-gdb/gdb/gdbserver/utils.c

83 lines
2.2 KiB
C

/* General utility routines for the remote server for GDB.
Copyright (C) 1986, 1989, 1993 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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "server.h"
#include <stdio.h>
/* Generally useful subroutines used throughout the program. */
/* 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 (string)
char *string;
{
extern int sys_nerr;
extern char *sys_errlist[];
extern int errno;
char *err;
char *combined;
if (errno < sys_nerr)
err = sys_errlist[errno];
else
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. */
NORETURN void
error (string, arg1, arg2, arg3)
char *string;
int arg1, arg2, arg3;
{
extern jmp_buf toplevel;
fflush (stdout);
fprintf (stderr, string, arg1, arg2, arg3);
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. */
void
fatal (string, arg)
char *string;
int arg;
{
fprintf (stderr, "gdb: ");
fprintf (stderr, string, arg);
fprintf (stderr, "\n");
exit (1);
}