move sboot to the root directory

[open-ath9k-htc-firmware.git] / sboot / magpie_1_1 / sboot / athos / src / xtos / null-alloca.S

diff --git a/sboot/magpie_1_1/sboot/athos/src/xtos/null-alloca.S b/sboot/magpie_1_1/sboot/athos/src/xtos/null-alloca.S
new file mode 100755 (executable)
index 0000000..2524f1f
--- /dev/null
+++ b/sboot/magpie_1_1/sboot/athos/src/xtos/null-alloca.S
@@ -0,0 +1,38 @@
+// null-alloca.S  -  Stub for Unused Alloca (MOVSP) Handler
+// $Id: //depot/rel/Cottonwood/Xtensa/OS/xtos/null-alloca.S#3 $
+
+// Copyright (c) 2006-2010 Tensilica Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+       //  Redirect alloca (MOVSP) exceptions as not handled, when
+       //  that functionality is not needed.  Done this way, a user can
+       //  just specify this small handler to override the default one.
+
+       .text
+       .weak   _xtos_unhandled_exception
+       .global _xtos_alloca_handler
+_xtos_alloca_handler:
+       movi    a3, _xtos_unhandled_exception
+1:     beqz    a3, 1b
+       jx      a3
+       .size   _xtos_alloca_handler, . - _xtos_alloca_handler
+