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https://sourceware.org/git/binutils-gdb.git
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860789c7d5
This commit replaces the hacky "exception" system in gdbserver with the exceptions and cleanups subsystem from GDB. Only the catch/cleanup code in what was "main" has been updated to use the new system. Other parts of gdbserver can now be converted to use TRY_CATCH and cleanups on an as-needed basis. A side-effect of this commit is that some error messages will change slightly, and in cases with multiple errors the error messages will be printed in a different order. gdb/gdbserver/ChangeLog: * server.h (setjmp.h): Do not include. (toplevel): Do not declare. (common-exceptions.h): Include. (cleanups.h): Likewise. * server.c (toplevel): Do not define. (exit_code): New static global. (detach_or_kill_for_exit_cleanup): New function. (main): New function. Original main renamed to... (captured_main): New function. * utils.c (verror) [!IN_PROCESS_AGENT]: Use throw_verror.
148 lines
3.4 KiB
C
148 lines
3.4 KiB
C
/* General utility routines for the remote server for GDB.
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Copyright (C) 1986-2014 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "server.h"
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#ifdef IN_PROCESS_AGENT
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# define PREFIX "ipa: "
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# define TOOLNAME "GDBserver in-process agent"
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#else
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# define PREFIX "gdbserver: "
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# define TOOLNAME "GDBserver"
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#endif
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/* Generally useful subroutines used throughout the program. */
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void
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malloc_failure (long size)
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{
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fprintf (stderr,
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PREFIX "ran out of memory while trying to allocate %lu bytes\n",
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(unsigned long) size);
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exit (1);
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}
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/* Copy a string into a memory buffer.
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If malloc fails, this will print a message to stderr and exit. */
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char *
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xstrdup (const char *s)
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{
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char *ret = strdup (s);
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if (ret == NULL)
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malloc_failure (strlen (s) + 1);
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return ret;
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}
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/* Print the system error message for errno, and also mention STRING
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as the file name for which the error was encountered.
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Then return to command level. */
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void
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perror_with_name (const char *string)
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{
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const char *err;
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char *combined;
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err = strerror (errno);
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if (err == NULL)
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err = "unknown error";
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combined = (char *) alloca (strlen (err) + strlen (string) + 3);
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strcpy (combined, string);
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strcat (combined, ": ");
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strcat (combined, err);
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error ("%s.", combined);
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}
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/* Print an error message and return to top level. */
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void
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verror (const char *string, va_list args)
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{
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#ifdef IN_PROCESS_AGENT
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fflush (stdout);
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vfprintf (stderr, string, args);
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fprintf (stderr, "\n");
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exit (1);
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#else
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throw_verror (GENERIC_ERROR, string, args);
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#endif
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}
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void
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vwarning (const char *string, va_list args)
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{
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fprintf (stderr, PREFIX);
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vfprintf (stderr, string, args);
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fprintf (stderr, "\n");
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}
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/* Report a problem internal to GDBserver, and exit. */
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void
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internal_verror (const char *file, int line, const char *fmt, va_list args)
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{
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fprintf (stderr, "\
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%s:%d: A problem internal to " TOOLNAME " has been detected.\n", file, line);
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vfprintf (stderr, fmt, args);
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fprintf (stderr, "\n");
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exit (1);
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}
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/* Report a problem internal to GDBserver. */
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void
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internal_vwarning (const char *file, int line, const char *fmt, va_list args)
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{
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fprintf (stderr, "\
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%s:%d: A problem internal to " TOOLNAME " has been detected.\n", file, line);
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vfprintf (stderr, fmt, args);
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fprintf (stderr, "\n");
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}
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/* Convert a CORE_ADDR into a HEX string, like %lx.
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The result is stored in a circular static buffer, NUMCELLS deep. */
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char *
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paddress (CORE_ADDR addr)
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{
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return phex_nz (addr, sizeof (CORE_ADDR));
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}
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/* Convert a file descriptor into a printable string. */
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char *
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pfildes (gdb_fildes_t fd)
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{
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#if USE_WIN32API
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return phex_nz (fd, sizeof (gdb_fildes_t));
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#else
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return plongest (fd);
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#endif
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}
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/* See common/common-exceptions.h. */
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void
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prepare_to_throw_exception (void)
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{
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/* No client-specific actions required. */
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}
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