/**
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* \file
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*/
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#ifndef __MONO_UTILS_HWCAP_H__
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#define __MONO_UTILS_HWCAP_H__
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#include <stdio.h>
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#include <glib.h>
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#include "config.h"
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#include "mono/utils/mono-compiler.h"
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#define MONO_HWCAP_VAR(NAME) extern gboolean mono_hwcap_ ## NAME;
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#include "mono/utils/mono-hwcap-vars.h"
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#undef MONO_HWCAP_VAR
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/* Call this function to perform hardware feature detection. Until
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* this function has been called, all feature variables will be
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* FALSE as a default.
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*
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* While this function can be called multiple times, doing so from
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* several threads at the same time is not supported as it will
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* result in an inconsistent state of the variables. Further,
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* feature variables should not be read *while* this function is
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* executing.
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*/
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void mono_hwcap_init (void);
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/* Implemented in mono-hwcap-$TARGET.c. Do not call. */
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void mono_hwcap_arch_init (void);
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/* Print detected features to stdout. */
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void mono_hwcap_print (void);
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/* Please note: If you're going to use the Linux auxiliary vector
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* to detect CPU features, don't use any of the constant names in
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* the hwcap.h header. This ties us to a particular version of the
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* header, and since the values are guaranteed to be stable, hard-
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* coding them is not that terrible.
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*
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* Also, please do not add assumptions to mono-hwcap. The code here
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* is meant to *discover* facts about the hardware, not assume that
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* some feature exists because of $arbitrary_preprocessor_define.
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* If you have to make assumptions, do so elsewhere, e.g. in the
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* Mini back end you're modifying.
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*
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* Finally, be conservative. If you can't determine precisely if a
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* feature is present, assume that it isn't. In the rare cases where
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* the hardware or operating system are lying, work around that in
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* a different place, as with the rule above.
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*/
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#endif /* __MONO_UTILS_HWCAP_H__ */
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