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1a04431cff
Implement MutatorContextCheck on Windows. Add AVERT(MutatorContext, context) in PoolAccess and other functions. Document initialization functions MutatorContextInitFault and MutatorContextInitThread and implement them on Windows. Add a union discriminator to MutatorContextStruct on Windows so that we don't accidentally try to get the stack pointer from a fault context, or the exception address from a thread context. Copied from Perforce Change: 192567 ServerID: perforce.ravenbrook.com
78 lines
3.3 KiB
C
78 lines
3.3 KiB
C
/* prmc.h: MUTATOR CONTEXT INTERFACE
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*
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* $Id$
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* Copyright (c) 2016 Ravenbrook Limited. See end of file for license.
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*
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* See <design/prmc/> for the design of the generic interface including
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* the contracts for these functions.
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*
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* This interface has several different implementations, typically one
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* per platform, see <code/prmc*.c> for the various implementations.
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*/
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#ifndef prmc_h
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#define prmc_h
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#include "mpmtypes.h"
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#define MutatorContextSig ((Sig)0x519302C0) /* SIGnature MUTator COntext */
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enum {
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MutatorContextFAULT, /* Context of thread stopped by protection fault. */
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MutatorContextTHREAD, /* Context of thread stopped by thread manager. */
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MutatorContextLIMIT
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};
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typedef unsigned MutatorContextVar;
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extern Bool MutatorContextCheck(MutatorContext context);
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extern Bool MutatorContextCanStepInstruction(MutatorContext context);
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extern Res MutatorContextStepInstruction(MutatorContext context);
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extern Addr MutatorContextSP(MutatorContext context);
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extern Res MutatorContextScan(ScanState ss, MutatorContext context,
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mps_area_scan_t scan, void *closure);
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#endif /* prmc_h */
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/* C. COPYRIGHT AND LICENSE
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*
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* Copyright (C) 2016 Ravenbrook Limited <http://www.ravenbrook.com/>.
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* All rights reserved. This is an open source license. Contact
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* Ravenbrook for commercial licensing options.
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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 are
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* met:
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*
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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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*
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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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* 3. Redistributions in any form must be accompanied by information on how
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* to obtain complete source code for this software and any accompanying
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* software that uses this software. The source code must either be
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* included in the distribution or be available for no more than the cost
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* of distribution plus a nominal fee, and must be freely redistributable
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* under reasonable conditions. For an executable file, complete source
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* code means the source code for all modules it contains. It does not
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* include source code for modules or files that typically accompany the
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* major components of the operating system on which the executable file
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* runs.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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* PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS AND CONTRIBUTORS 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
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY 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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