(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

1 files changed, 97 insertions, 0 deletions

diff --git a/sysdeps/mach/hurd/mips/exc2signal.c b/sysdeps/mach/hurd/mips/exc2signal.c
new file mode 100644
index 0000000000..c505ae5b22
--- /dev/null
+++ b/sysdeps/mach/hurd/mips/exc2signal.c
@@ -0,0 +1,97 @@
+/* Translate Mach exception codes into signal numbers.  MIPS version.
+   Copyright (C) 1996, 1997 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <hurd.h>
+#include <hurd/signal.h>
+#include <mach/exception.h>
+
+/* 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;
+      if (detail->exc_code == EXC_MIPS_II)
+	detail->code = detail->exc_subcode;
+      else
+	detail->code = 0;
+      break;
+      
+    case EXC_ARITHMETIC:
+      switch (detail->exc_code)
+	{
+	case EXC_MIPS_OV:	/* integer overflow */
+	  *signo = SIGFPE;
+	  detail->code = detail->exc_subcode;
+	  break;
+
+	default:
+	  *signo = SIGFPE;
+	  detail->code = 0;
+	  break;
+
+	case EXC_MIPS_INT:
+	  /* Subcode is the fp_status word saved by the hardware.
+	     Give an error code corresponding to the first bit set.  */
+	  if (detail->exc_subcode == EXC_MIPS_FLT_UNIMP)
+	    *signo = SIGILL;
+	  else
+	    *signo = SIGFPE;
+	  detail->code = detail->exc_subcode;
+	  break;
+	}
+      break;
+
+    case EXC_EMULATION:		
+      /* 3.0 doesn't give this one, why, I don't know.  */
+      *signo = SIGEMT;
+      detail->code = 0;
+      break;
+
+    case EXC_SOFTWARE:
+      *signo = SIGEMT;
+      detail->code = 0;
+      break;
+      
+    case EXC_BREAKPOINT:
+      *signo = SIGTRAP;
+      detail->code = 0;
+      break;
+    }
+}