// int-initlevel.S - Routines used to pull-in interrupt dispatch code // in the tiny-rt LSP. // $Id: //depot/rel/Cottonwood/Xtensa/OS/xtos/int-initlevel.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. // To assemble this template file, define a macro called _INTERRUPT_LEVEL // to be the interrupt level of the vector. We use the same template for both // high-level and medium-level interrupts, but not debug level. #include #include "xtos-internal.h" #if XCHAL_HAVE_INTERRUPTS && (_INTERRUPT_LEVEL <= XCHAL_NUM_INTLEVELS) && (_INTERRUPT_LEVEL != XCHAL_DEBUGLEVEL) // Nothing to do at runtime. This function only has effect // at link-time. // .text .global LABEL(_xtos_dispatch_level,_interrupts) .align 4 LABEL(_xtos_dispatch_level,_interrupts): abi_entry abi_return .size LABEL(_xtos_dispatch_level,_interrupts), . - LABEL(_xtos_dispatch_level,_interrupts) // This reference is what does the work of pulling-in the // relevant interrupt vector at the specified level. // This is only needed in the tiny-rt LSP. // # if _INTERRUPT_LEVEL == 1 .global _need_level1int_ # else .global LABEL(_Level,Vector) # endif #endif /* XCHAL_HAVE_INTERRUPTS */