/*
* Copyright (c) 2016 Martin Decky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup libcriscv64
* @{
*/
/** @file
*/
#ifndef _LIBC_riscv64_FIBRIL_H_
#define _LIBC_riscv64_FIBRIL_H_
#include <stdint.h>
#include <libarch/fibril_context.h>
#define SP_DELTA 0
#define context_set(ctx, _pc, stack, size, ptls) \
do { \
(ctx)->pc = (uintptr_t) (_pc); \
(ctx)->sp = ((uintptr_t) (stack)) + (size) - SP_DELTA; \
(ctx)->x4 = ((uintptr_t) (ptls)) + sizeof(tcb_t); \
} while (0)
static inline uintptr_t _context_get_fp(context_t *ctx)
{
// FIXME: No frame pointer in the standard ABI.
return 0;
}
#endif
/** @}
*/