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1217 decky 1
/*
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 * Copyright (C) 2006 Martin Decky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef __LIBC__ppc32__PSTHREAD_H__
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#define __LIBC__ppc32__PSTHREAD_H__
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#include <types.h>
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/* We define our own context_set, because we need to set
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 * the TLS pointer to the tcb+0x7000
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 *
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 * See tls_set in thread.h
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 */
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#define context_set(c, _pc, stack, size, ptls)          \
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    (c)->pc = (sysarg_t) (_pc);             \
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    (c)->sp = ((sysarg_t) (stack)) + (size) - SP_DELTA;     \
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    (c)->tls = ((sysarg_t) (ptls)) + 0x7000 + sizeof(tcb_t);
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#define SP_DELTA    16
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typedef struct {
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    uint32_t sp;
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    uint32_t pc;
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    uint32_t tls;
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    uint32_t r13;
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    uint32_t r14;
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    uint32_t r15;
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    uint32_t r16;
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    uint32_t r17;
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    uint32_t r18;
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    uint32_t r19;
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    uint32_t r20;
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    uint32_t r21;
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    uint32_t r22;
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    uint32_t r23;
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    uint32_t r24;
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    uint32_t r25;
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    uint32_t r26;
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    uint32_t r27;
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    uint32_t r28;
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    uint32_t r29;
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    uint32_t r30;
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    uint32_t r31;
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    uint32_t cr;
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} __attribute__ ((packed)) context_t;
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#endif