| [bb5b950] | 1 | /*
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| [df4ed85] | 2 | * Copyright (c) 2006 Ondrej Palkovsky
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| 3 | * Copyright (c) 2006 Jakub Jermar
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| [bb5b950] | 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| [cfa70add] | 30 | /** @addtogroup libcsparc64
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| [bb5b950] | 31 | * @{
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| 32 | */
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| 33 |
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| [4805495] | 34 | #ifndef _LIBC_sparc64_THREAD_H_
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| 35 | #define _LIBC_sparc64_THREAD_H_
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| [bb5b950] | 36 |
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| [3fcea34] | 37 | #include <assert.h>
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| 38 | #include <align.h>
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| 39 | #include <libarch/stack.h>
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| 40 |
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| 41 | static inline uintptr_t arch_thread_prepare(void *stack, size_t stack_size,
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| 42 | void (*main)(void *), void *arg)
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| 43 | {
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| 44 | /* We must leave space above the stack pointer for initial register spill area. */
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| 45 | uintptr_t *sp = (uintptr_t *) ALIGN_DOWN((uintptr_t) stack + stack_size - STACK_WINDOW_SAVE_AREA_SIZE - STACK_ARG_SAVE_AREA_SIZE, 16);
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| 46 |
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| 47 | sp[-1] = (uintptr_t) arg;
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| 48 | sp[-2] = (uintptr_t) main;
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| 49 |
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| 50 | return ((uintptr_t) sp) - STACK_BIAS;
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| 51 | }
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| 52 |
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| [bb5b950] | 53 | #endif
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| 54 |
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| 55 | /** @}
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| 56 | */
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