X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=target_firmware%2Fmagpie_fw_dev%2Fbuild%2Fmagpie_1_1%2Fsboot%2Fathos%2Fsrc%2Fxtos%2Fexc-syscall-c-handler.c;fp=target_firmware%2Fmagpie_fw_dev%2Fbuild%2Fmagpie_1_1%2Fsboot%2Fathos%2Fsrc%2Fxtos%2Fexc-syscall-c-handler.c;h=0000000000000000000000000000000000000000;hb=da213e4442109ebad163518ed9edd3467e6be863;hp=405f7b63e60207abd9ccb29e1c7699ff98f3ff50;hpb=dd9b0fc8602b54c56dc9e76a3d9def97ff83d3a4;p=open-ath9k-htc-firmware.git

diff --git a/target_firmware/magpie_fw_dev/build/magpie_1_1/sboot/athos/src/xtos/exc-syscall-c-handler.c b/target_firmware/magpie_fw_dev/build/magpie_1_1/sboot/athos/src/xtos/exc-syscall-c-handler.c
deleted file mode 100755
index 405f7b6..0000000
--- a/target_firmware/magpie_fw_dev/build/magpie_1_1/sboot/athos/src/xtos/exc-syscall-c-handler.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/* exc-syscall-c-handler.c - SYSCALL instruction XTOS handler in C */
-
-/*
- * Copyright (c) 1999-2006 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.
- */
-
-#include <xtensa/config/core.h>
-#include "xtos-internal.h"
-
-
-/*
- *  User vector mode exception handler for the SYSCALL cause.
- *
- *  NOTE:  This function is NOT used by default.  The assembly-level
- *  handler version of this function is normally used instead.
- *  This function is provided as an example only.
- *  To use it instead of the default assembly-level version,
- *  you can register it using _xtos_set_exception_handler().
- *  For example:
- *
- *	#include <xtensa/xtruntime.h>
- *	#include <xtensa/corebits.h>
- *	_xtos_set_exception_handler( EXCCAUSE_SYSCALL,
- *			(_xtos_handler)_xtos_p_syscall_handler );
- */
-UserFrame* _xtos_p_syscall_handler( UserFrame *uf /*, int cause */ )
-{
-    uf->pc += 3;	/* skip SYSCALL instruction */
-
-#if XCHAL_HAVE_LOOPS
-    /*
-     *  If the SYSCALL instruction was the last instruction in the body
-     *  of a zero-overhead loop, then we should decrement the loop count
-     *  and resume execution at the head of the loop.
-     */
-
-    if( uf->pc == uf->lend && uf->lcount != 0 )
-    {
-	uf->lcount--;
-	uf->pc = uf->lbeg;
-    }
-#endif /*XCHAL_HAVE_LOOP*/
-
-    /*
-     *  Handle the system call.
-     *
-     *  A typical SYSCALL handler uses code such as this to handle
-     *  the system call, where the operation to be done is determined
-     *  by the a2 register.  Parameters to the operation are typically
-     *  passed in address registers a3 and up.  Results are typically
-     *  returned in a2.  (See Linux source code for example.)
-     */
-    switch( uf->a2 ) {
-	case 0:
-	    /*  Spill register windows to the stack.  */
-	    /*
-	     *  The Xtensa architecture reserves the a2==0 condition as a request
-	     *  to flush (spill) register windows to the stack.  The current exception
-	     *  handling implementation never spills windows to the stack (it used
-	     *  to always spill, not true anymore), so we have to spill windows
-	     *  explicitly here.  (Note that xthal_window_spill() spills windows
-	     *  that are part of the interrupt handling context, that don't
-	     *  really need to be spilled, but that's harmless other than being
-	     *  less than optimally efficient.)
-	     *
-	     *  Also, be nice to programmers here.  If they're
-	     *  building for Call0 ABI, silently do nothing for
-	     *  syscall a2==0.
-	     */
-#ifdef __XTENSA_WINDOWED_ABI__
-	    xthal_window_spill();
-#endif
-	    break;
-
-	default:
-	    uf->a2 = -1 /*ENOSYS*/;	/* system call not supported */
-	    break;
-    }
-
-    return( uf );
-}
-