about summary refs log tree commit diff
path: root/REORG.TODO/hurd/exc2signal.c
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/hurd/exc2signal.c')
-rw-r--r--REORG.TODO/hurd/exc2signal.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/REORG.TODO/hurd/exc2signal.c b/REORG.TODO/hurd/exc2signal.c
new file mode 100644
index 0000000000..3b9df0cca8
--- /dev/null
+++ b/REORG.TODO/hurd/exc2signal.c
@@ -0,0 +1,70 @@
+/* Translate Mach exception codes into signal numbers.  Stub version.
+   Copyright (C) 1991-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <hurd.h>
+#include <hurd/signal.h>
+
+/* This file must be modified with machine-dependent details.  */
+#error "need to write sysdeps/mach/hurd/MACHINE/exc2signal.c"
+
+/* Translate the Mach exception codes, as received in an `exception_raise' RPC,
+   into a signal number and signal subcode.  */
+
+void
+_hurd_exception2signal (struct hurd_signal_detail *detail, int *signo)
+{
+  detail->error = 0;
+
+  switch (detail->exc)
+    {
+    default:
+      *signo = SIGIOT;
+      detail->code = detail->exc;
+      break;
+
+    case EXC_BAD_ACCESS:
+      if (detail->exc_code == KERN_PROTECTION_FAILURE)
+	*signo = SIGSEGV;
+      else
+	*signo = SIGBUS;
+      detail->code = detail->exc_subcode;
+      detail->error = detail->exc_code;
+      break;
+
+    case EXC_BAD_INSTRUCTION:
+      *signo = SIGILL;
+      detail->code = 0;
+      break;
+
+    case EXC_ARITHMETIC:
+      *signo = SIGFPE;
+      detail->code = 0;
+      break;
+
+    case EXC_EMULATION:
+    case EXC_SOFTWARE:
+      *signo = SIGEMT;
+      detail->code = 0;
+      break;
+
+    case EXC_BREAKPOINT:
+      *signo = SIGTRAP;
+      detail->code = 0;
+      break;
+    }
+}