/* 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 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
+ 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,
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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ 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)
{
-#ifndef STDC_HEADERS
- extern int sys_nerr;
- extern char *sys_errlist[];
- extern int errno;
-#endif
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. */
-#ifdef ANSI_PROTOTYPES
-NORETURN void
-error (const char *string,...)
-#else
void
-error (va_alist)
- va_dcl
-#endif
+error (const char *string,...)
{
extern jmp_buf toplevel;
va_list args;
-#ifdef ANSI_PROTOTYPES
va_start (args, string);
-#else
- va_start (args);
-#endif
fflush (stdout);
-#ifdef ANSI_PROTOTYPES
vfprintf (stderr, string, args);
-#else
- {
- char *string1;
-
- string1 = va_arg (args, char *);
- vfprintf (stderr, string1, args);
- }
-#endif
fprintf (stderr, "\n");
longjmp (toplevel, 1);
}
STRING and ARG are passed to fprintf. */
/* VARARGS */
-NORETURN void
-#ifdef ANSI_PROTOTYPES
-fatal (char *string,...)
-#else
-fatal (va_alist)
- va_dcl
-#endif
+void
+fatal (const char *string,...)
{
va_list args;
-#ifdef ANSI_PROTOTYPES
va_start (args, string);
-#else
- char *string;
- va_start (args);
- string = va_arg (args, char *);
-#endif
- fprintf (stderr, "gdb: ");
+ 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