Move errno.h to common-defs.h

[deliverable/binutils-gdb.git] / gdb / gdbserver / utils.c

diff --git a/gdb/gdbserver/utils.c b/gdb/gdbserver/utils.c
index 2130d1766c408b8689d5c977d2bcc784d58d156a..b011637c7746d18730843fcf534bfad573329e33 100644 (file)
--- a/gdb/gdbserver/utils.c
+++ b/gdb/gdbserver/utils.c
@@ -1,12 +1,11 @@
 /* General utility routines for the remote server for GDB.
-   Copyright (C) 1986, 1989, 1993, 1995, 1996, 1997, 1999, 2000, 2002, 2003,
-   2007 Free Software Foundation, Inc.
+   Copyright (C) 1986-2014 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,
@@ -15,26 +14,48 @@
    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., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "server.h"
-#include <stdio.h>
-#include <string.h>
+
+#ifdef IN_PROCESS_AGENT
+#  define PREFIX "ipa: "
+#  define TOOLNAME "GDBserver in-process agent"
+#else
+#  define PREFIX "gdbserver: "
+#  define TOOLNAME "GDBserver"
+#endif
 
 /* Generally useful subroutines used throughout the program.  */
 
+void
+malloc_failure (long size)
+{
+  fprintf (stderr,
+          PREFIX "ran out of memory while trying to allocate %lu bytes\n",
+          (unsigned long) size);
+  exit (1);
+}
+
+/* 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;
+}
+
 /* 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 (char *string)
+perror_with_name (const char *string)
 {
-#ifndef STDC_HEADERS
-  extern int errno;
-#endif
   const char *err;
   char *combined;
 
@@ -57,13 +78,19 @@ perror_with_name (char *string)
 void
 error (const char *string,...)
 {
+#ifndef IN_PROCESS_AGENT
   extern jmp_buf toplevel;
+#endif
   va_list args;
   va_start (args, string);
   fflush (stdout);
   vfprintf (stderr, string, args);
   fprintf (stderr, "\n");
+#ifndef IN_PROCESS_AGENT
   longjmp (toplevel, 1);
+#else
+  exit (1);
+#endif
 }
 
 /* Print an error message and exit reporting failure.
@@ -76,7 +103,7 @@ fatal (const char *string,...)
 {
   va_list args;
   va_start (args, string);
-  fprintf (stderr, "gdb: ");
+  fprintf (stderr, PREFIX);
   vfprintf (stderr, string, args);
   fprintf (stderr, "\n");
   va_end (args);
@@ -89,8 +116,45 @@ warning (const char *string,...)
 {
   va_list args;
   va_start (args, string);
-  fprintf (stderr, "gdb: ");
+  fprintf (stderr, PREFIX);
   vfprintf (stderr, string, args);
   fprintf (stderr, "\n");
   va_end (args);
 }
+
+/* Report a problem internal to GDBserver, and exit.  */
+
+void
+internal_error (const char *file, int line, const char *fmt, ...)
+{
+  va_list args;
+  va_start (args, fmt);
+
+  fprintf (stderr,  "\
+%s:%d: A problem internal to " TOOLNAME " has been detected.\n", file, line);
+  vfprintf (stderr, fmt, args);
+  fprintf (stderr, "\n");
+  va_end (args);
+  exit (1);
+}
+
+/* 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)
+{
+  return phex_nz (addr, sizeof (CORE_ADDR));
+}
+
+/* Convert a file descriptor into a printable string.  */
+
+char *
+pfildes (gdb_fildes_t fd)
+{
+#if USE_WIN32API
+  return phex_nz (fd, sizeof (gdb_fildes_t));
+#else
+  return plongest (fd);
+#endif
+}