/* General utility routines for the remote server for GDB.
- Copyright (C) 1986, 1989, 1993 Free Software Foundation, Inc.
+ 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 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 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.
+ 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. */
+ 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;
+}
+
+/* Free a standard argv vector. */
+
+void
+freeargv (char **vector)
+{
+ char **scan;
+
+ if (vector != NULL)
+ {
+ for (scan = vector; *scan != NULL; scan++)
+ {
+ free (*scan);
+ }
+ free (vector);
+ }
+}
+
/* 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;
+perror_with_name (const char *string)
{
- extern int sys_nerr;
- extern char *sys_errlist[];
- extern int errno;
- char *err;
+ const char *err;
char *combined;
- if (errno < sys_nerr)
- err = sys_errlist[errno];
- else
+ err = strerror (errno);
+ if (err == NULL)
err = "unknown error";
combined = (char *) alloca (strlen (err) + strlen (string) + 3);
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;
+void
+error (const char *string,...)
{
extern jmp_buf toplevel;
-
+ va_list args;
+ va_start (args, string);
fflush (stdout);
- fprintf (stderr, string, arg1, arg2, arg3);
+ vfprintf (stderr, string, args);
fprintf (stderr, "\n");
- longjmp(toplevel, 1);
+ 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 (string, arg)
- char *string;
- int arg;
+fatal (const char *string,...)
{
- fprintf (stderr, "gdb: ");
- fprintf (stderr, string, arg);
+ 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);
+}
+
+/* Temporary storage using circular buffer. */
+#define NUMCELLS 4
+#define CELLSIZE 50
+
+/* Return the next entry in the circular buffer. */
+
+static char *
+get_cell (void)
+{
+ static char buf[NUMCELLS][CELLSIZE];
+ static int cell = 0;
+ if (++cell >= NUMCELLS)
+ cell = 0;
+ return buf[cell];
+}
+
+/* Stdarg wrapper around vsnprintf.
+ SIZE is the size of the buffer pointed to by STR. */
+
+static int
+xsnprintf (char *str, size_t size, const char *format, ...)
+{
+ va_list args;
+ int ret;
+
+ va_start (args, format);
+ ret = vsnprintf (str, size, format, args);
+ va_end (args);
+
+ return ret;
+}
+
+/* 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)
+{
+ char *str = get_cell ();
+ xsnprintf (str, CELLSIZE, "%lx", (long) addr);
+ return str;
+}
projects / deliverable / binutils-gdb.git / blobdiff