59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/*
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* Copyright (c) 2011 Aeroflex Gaisler
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*
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* BSD license:
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef H_LEONBARE_CONTEXTSWITCH_H
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#define H_LEONBARE_CONTEXTSWITCH_H
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/*
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* for this version, the index of THREAD_JB_SP must be even !!!
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* This way, we can speed up the context switch (using std).
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*/
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#define THREAD_JB_SP 0 /* aligned */
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#define THREAD_JB_PC 1
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#define THREAD_JB_SVMASK 3
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#define THREAD_JB_MASK 4
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#define THREAD_JB_FP 5
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#define THREAD_JB_I7 6
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#define THREAD_JB_PSR 8 /* aligned */
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#define THREAD_JB_WIM 9
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#define THREAD_JB_FPUCTX 10
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#ifndef __ASSEMBLER__
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extern unsigned long fpustate_current;
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typedef int threadctx_t[14 + 2] __attribute__ ((aligned (8)));
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int thread_setjmp (threadctx_t env, int val);
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void thread_longjmp (threadctx_t env, int val);
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void _switch_to (threadctx_t env, int val);
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#endif /* __ASSEMBLER__ */
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#endif
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