6ce4e876a7
Add support for handling floating point disabled traps mostly in userland for the simple single threaded case. Not yet enabled by default. Implement __sparc_utrap_install as specified by the sparc abi.
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/*-
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* Copyright (c) 2001 Jake Burkholder.
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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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* 1. 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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* 2. 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef ___SPARC_UTRAP_PRIVATE_H_
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#define ___SPARC_UTRAP_PRIVATE_H_
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#define UF_DONE(uf) do { \
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uf->uf_pc = uf->uf_npc; \
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uf->uf_npc = uf->uf_pc + 4; \
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} while (0)
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struct utrapframe {
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u_long uf_global[8];
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u_long uf_out[8];
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u_long uf_pc;
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u_long uf_npc;
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u_long uf_sfar;
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u_long uf_sfsr;
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u_long uf_tar;
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u_long uf_type;
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};
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extern char __sparc_utrap_fp_disabled[];
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extern char __sparc_utrap_gen[];
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void __sparc_utrap(struct utrapframe *);
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#endif
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