summaryrefslogtreecommitdiff
path: root/sysdeps/mach/hurd/mips/exc2signal.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/mach/hurd/mips/exc2signal.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
downloadglibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/mach/hurd/mips/exc2signal.c')
-rw-r--r--sysdeps/mach/hurd/mips/exc2signal.c97
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;
+ }
+}