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/* vi: set ts=4 sw=4 expandtab: (add to ~/.vimrc: set modeline modelines=5) */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
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* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is [Open Source Virtual Machine].
*
* The Initial Developer of the Original Code is
* Adobe System Incorporated.
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* the Initial Developer. All Rights Reserved.
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* Contributor(s):
* Adobe AS3 Team
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* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#ifndef __njconfig_h__
#define __njconfig_h__
#include "avmplus.h"
// Do not include nanojit.h here; this file should be usable without it.
#ifdef FEATURE_NANOJIT
namespace nanojit
{
/***
* A struct used to configure the assumptions that Assembler can make when
* generating code. The ctor will fill in all fields with the most reasonable
* values it can derive from compiler flags and/or runtime detection, but
* the embedder is free to override any or all of them as it sees fit.
* Using the ctor-provided default setup is guaranteed to provide a safe
* runtime environment (though perhaps suboptimal in some cases), so an embedder
* should replace these values with great care.
*
* Note that although many fields are used on only specific architecture(s),
* this struct is deliberately declared without ifdef's for them, so (say) ARM-specific
* fields are declared everywhere. This reduces build dependencies (so that this
* files does not require nanojit.h to be included beforehand) and also reduces
* clutter in this file; the extra storage space required is trivial since most
* fields are single bits.
*/
struct Config
{
public:
// fills in reasonable default values for all fields.
Config();
// ARM architecture to assume when generate instructions for (currently, 4 <= arm_arch <= 7)
uint8_t arm_arch;
// If true, use CSE.
uint32_t cseopt:1;
// Can we use SSE2 instructions? (x86-only)
uint32_t i386_sse2:1;
// Can we use cmov instructions? (x86-only)
uint32_t i386_use_cmov:1;
// Should we use a virtual stack pointer? (x86-only)
uint32_t i386_fixed_esp:1;
// Whether or not to generate VFP instructions. (ARM only)
uint32_t arm_vfp:1;
// @todo, document me
uint32_t arm_show_stats:1;
// If true, use softfloat for all floating point operations,
// whether or not an FPU is present. (ARM only for now, but might also includes MIPS in the future)
uint32_t soft_float:1;
// If true, compiler will insert a random amount of space in between functions (x86-32 only)
uint32_t harden_function_alignment:1;
// If true, compiler will insert randomly choosen no-op instructions at random locations within a compiled method (x86-32 only)
uint32_t harden_nop_insertion:1;
};
}
#endif // FEATURE_NANOJIT
#endif // __njconfig_h__
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