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* Copyright (c) 2006 Jakub Jermar
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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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* - 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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* 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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/** @addtogroup sparc64proc
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#include <proc/thread.h>
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#include <arch/proc/thread.h>
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#include <arch/trap/regwin.h>
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void thr_constructor_arch(thread_t *t)
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* Allocate memory for uspace_window_buffer.
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t->arch.uspace_window_buffer = NULL;
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void thr_destructor_arch(thread_t *t)
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if (t->arch.uspace_window_buffer) {
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uintptr_t uw_buf = (uintptr_t) t->arch.uspace_window_buffer;
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* Mind the possible alignment of the userspace window buffer
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* belonging to a killed thread.
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free((uint8_t *) ALIGN_DOWN(uw_buf, UWB_ALIGNMENT));
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void thread_create_arch(thread_t *t)
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if ((t->flags & THREAD_FLAG_USPACE) && (!t->arch.uspace_window_buffer))
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* The thread needs userspace window buffer and the object
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* returned from the slab allocator doesn't have any.
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t->arch.uspace_window_buffer = malloc(UWB_ASIZE, 0);
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uintptr_t uw_buf = (uintptr_t) t->arch.uspace_window_buffer;
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* Mind the possible alignment of the userspace window buffer
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* belonging to a killed thread.
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t->arch.uspace_window_buffer = (uint8_t *) ALIGN_DOWN(uw_buf,