Adding upstream version 2.10.34.upstream/2.10.34upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 186 insertions, 0 deletions

diff --git a/app/signals.c b/app/signals.c
new file mode 100644
index 0000000..92fd266
--- /dev/null
+++ b/app/signals.c
@@ -0,0 +1,186 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <signal.h>
+
+#include <gio/gio.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "core/core-types.h"
+
+#include "core/gimp.h"
+
+#include "errors.h"
+#include "signals.h"
+
+#ifdef G_OS_WIN32
+#ifdef HAVE_EXCHNDL
+#include <windows.h>
+#include <time.h>
+#include <exchndl.h>
+
+static LPTOP_LEVEL_EXCEPTION_FILTER g_prevExceptionFilter = NULL;
+
+static LONG WINAPI  gimp_sigfatal_handler (PEXCEPTION_POINTERS pExceptionInfo);
+#endif
+
+#else
+
+static void         gimp_sigfatal_handler (gint sig_num) G_GNUC_NORETURN;
+
+#endif
+
+
+void
+gimp_init_signal_handlers (gchar **backtrace_file)
+{
+  time_t  t;
+  gchar  *filename;
+  gchar  *dir;
+
+#ifdef G_OS_WIN32
+  /* This has to be the non-roaming directory (i.e., the local
+     directory) as backtraces correspond to the binaries on this
+     system. */
+  dir = g_build_filename (g_get_user_data_dir (),
+                          GIMPDIR, GIMP_USER_VERSION, "CrashLog",
+                          NULL);
+#else
+  dir = g_build_filename (gimp_directory (), "CrashLog", NULL);
+#endif
+
+  time (&t);
+  filename = g_strdup_printf ("%s-crash-%" G_GUINT64_FORMAT ".txt",
+                              PACKAGE_NAME, (guint64) t);
+  *backtrace_file = g_build_filename (dir, filename, NULL);
+  g_free (filename);
+  g_free (dir);
+
+#ifdef G_OS_WIN32
+  /* Use Dr. Mingw (dumps backtrace on crash) if it is available. Do
+   * nothing otherwise on Win32.
+   * The user won't get any stack trace from glib anyhow.
+   * Without Dr. MinGW, It's better to let Windows inform about the
+   * program error, and offer debugging (if the user has installed MSVC
+   * or some other compiler that knows how to install itself as a
+   * handler for program errors).
+   */
+
+#ifdef HAVE_EXCHNDL
+  /* Order is very important here. We need to add our signal handler
+   * first, then run ExcHndlInit() which will add its own handler, so
+   * that ExcHnl's handler runs first since that's in FILO order.
+   */
+  if (! g_prevExceptionFilter)
+    g_prevExceptionFilter = SetUnhandledExceptionFilter (gimp_sigfatal_handler);
+
+  ExcHndlInit ();
+  ExcHndlSetLogFileNameA (*backtrace_file);
+
+#endif /* HAVE_EXCHNDL */
+
+#else
+
+  /* Handle fatal signals */
+
+  /* these are handled by gimp_terminate() */
+  gimp_signal_private (SIGHUP,  gimp_sigfatal_handler, 0);
+  gimp_signal_private (SIGINT,  gimp_sigfatal_handler, 0);
+  gimp_signal_private (SIGQUIT, gimp_sigfatal_handler, 0);
+  gimp_signal_private (SIGTERM, gimp_sigfatal_handler, 0);
+
+  /* these are handled by gimp_fatal_error() */
+  gimp_signal_private (SIGABRT, gimp_sigfatal_handler, 0);
+  gimp_signal_private (SIGBUS,  gimp_sigfatal_handler, 0);
+  gimp_signal_private (SIGSEGV, gimp_sigfatal_handler, 0);
+  gimp_signal_private (SIGFPE,  gimp_sigfatal_handler, 0);
+
+  /* Ignore SIGPIPE because plug_in.c handles broken pipes */
+  gimp_signal_private (SIGPIPE, SIG_IGN, 0);
+
+  /* Restart syscalls on SIGCHLD */
+  gimp_signal_private (SIGCHLD, SIG_DFL, SA_RESTART);
+
+#endif /* G_OS_WIN32 */
+}
+
+
+#ifdef G_OS_WIN32
+
+#ifdef HAVE_EXCHNDL
+static LONG WINAPI
+gimp_sigfatal_handler (PEXCEPTION_POINTERS pExceptionInfo)
+{
+  EXCEPTION_RECORD *er;
+  int               fatal;
+
+  if (pExceptionInfo == NULL ||
+      pExceptionInfo->ExceptionRecord == NULL)
+    return EXCEPTION_CONTINUE_SEARCH;
+
+  er = pExceptionInfo->ExceptionRecord;
+  fatal = I_RpcExceptionFilter (er->ExceptionCode);
+
+  /* IREF() returns EXCEPTION_CONTINUE_SEARCH for fatal exceptions */
+  if (fatal == EXCEPTION_CONTINUE_SEARCH)
+    {
+      /* Just in case, so that we don't loop or anything similar, just
+       * re-establish previous handler.
+       */
+      SetUnhandledExceptionFilter (g_prevExceptionFilter);
+
+      /* Now process the exception. */
+      gimp_fatal_error ("unhandled exception");
+    }
+
+  if (g_prevExceptionFilter && g_prevExceptionFilter != gimp_sigfatal_handler)
+    return g_prevExceptionFilter (pExceptionInfo);
+  else
+    return EXCEPTION_CONTINUE_SEARCH;
+}
+#endif
+
+#else
+
+/* gimp core signal handler for fatal signals */
+
+static void
+gimp_sigfatal_handler (gint sig_num)
+{
+  switch (sig_num)
+    {
+    case SIGHUP:
+    case SIGINT:
+    case SIGQUIT:
+    case SIGTERM:
+      gimp_terminate (g_strsignal (sig_num));
+      break;
+
+    case SIGABRT:
+    case SIGBUS:
+    case SIGSEGV:
+    case SIGFPE:
+    default:
+      gimp_fatal_error (g_strsignal (sig_num));
+      break;
+    }
+}
+
+#endif /* G_OS_WIN32 */