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6812587: Use auxv to determine SPARC hardware features on Solaris

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A similar function to getisax(2) should be used to determine all possible instruction set extensions.

Reviewed-by: never, kvn
This commit is contained in:
Christian Thalinger 2009-03-11 14:16:13 -07:00
parent 7a871160ec
commit 66cecec230
6 changed files with 163 additions and 82 deletions
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9
hotspot/src/os/solaris/vm/os_solaris.hpp
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@ -1,5 +1,5 @@
/*
* Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
* Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -72,6 +72,8 @@ class Solaris {
LGRP_VIEW_OS /* what's available to operating system */
} lgrp_view_t;
typedef uint_t (*getisax_func_t)(uint32_t* array, uint_t n);
typedef lgrp_id_t (*lgrp_home_func_t)(idtype_t idtype, id_t id);
typedef lgrp_cookie_t (*lgrp_init_func_t)(lgrp_view_t view);
typedef int (*lgrp_fini_func_t)(lgrp_cookie_t cookie);
@ -87,6 +89,8 @@ class Solaris {
const uint_t info_req[], int info_count,
uint64_t outdata[], uint_t validity[]);
static getisax_func_t _getisax;
static lgrp_home_func_t _lgrp_home;
static lgrp_init_func_t _lgrp_init;
static lgrp_fini_func_t _lgrp_fini;
@ -283,6 +287,9 @@ class Solaris {
}
static lgrp_cookie_t lgrp_cookie() { return _lgrp_cookie; }
static bool supports_getisax() { return _getisax != NULL; }
static uint_t getisax(uint32_t* array, uint_t n);
static void set_meminfo(meminfo_func_t func) { _meminfo = func; }
static int meminfo (const uint64_t inaddr[], int addr_count,
const uint_t info_req[], int info_count,