2019-12-18 Anthony Green <green@moxielogic.com>

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

diff --git a/gdb/gdbserver/utils.c b/gdb/gdbserver/utils.c
index a8ea9a15f8b7f0facfc6aa270fac64fa039d535e..b72dd0ec2b2c9bd35bc1dd01a6b5f1d375345abf 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 1986, 1989, 1993, 1995, 1996, 1997, 1999, 2000, 2002
-   Free Software Foundation, Inc.
+   Copyright (C) 1986-2019 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,
@@ -15,34 +14,41 @@
    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>
+
+#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);
+}
+
 /* 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 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 = safe_strerror (errno);
+  if (err == NULL)
     err = "unknown error";
 
   combined = (char *) alloca (strlen (err) + strlen (string) + 3);
@@ -53,47 +59,69 @@ perror_with_name (char *string)
   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.  */
+/* Print an error message and return to top level.  */
 
-NORETURN void
-error (const char *string,...)
+void
+verror (const char *string, va_list args)
 {
-  extern jmp_buf toplevel;
-  va_list args;
-  va_start (args, string);
+#ifdef IN_PROCESS_AGENT
   fflush (stdout);
   vfprintf (stderr, string, args);
   fprintf (stderr, "\n");
-  longjmp (toplevel, 1);
+  exit (1);
+#else
+  throw_verror (GENERIC_ERROR, string, args);
+#endif
 }
 
-/* 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 */
-NORETURN void
-fatal (const char *string,...)
+void
+vwarning (const char *string, va_list args)
 {
-  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_verror (const char *file, int line, const char *fmt, va_list args)
+{
+  fprintf (stderr,  "\
+%s:%d: A problem internal to " TOOLNAME " has been detected.\n", file, line);
+  vfprintf (stderr, fmt, args);
+  fprintf (stderr, "\n");
   exit (1);
 }
 
-/* VARARGS */
+/* Report a problem internal to GDBserver.  */
+
 void
-warning (const char *string,...)
+internal_vwarning (const char *file, int line, const char *fmt, va_list args)
 {
-  va_list args;
-  va_start (args, string);
-  fprintf (stderr, "gdb: ");
-  vfprintf (stderr, string, args);
+  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);
+}
+
+/* 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
 }