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8245137: aarch64 ICache flush depends on enabling gnu extensions

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Use __builtin___clear_cache.

Reviewed-by: aph, dholmes
This commit is contained in:
Kim Barrett 2020-05-18 10:47:52 -04:00
parent 840c3050e9
commit b957788c32
1 changed files with 3 additions and 3 deletions
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6
src/hotspot/cpu/aarch64/icache_aarch64.hpp
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@ -1,5 +1,5 @@
/* /*
* Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, Red Hat Inc. All rights reserved. * Copyright (c) 2014, Red Hat Inc. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
@ -34,10 +34,10 @@ class ICache : public AbstractICache {
public: public:
static void initialize(); static void initialize();
static void invalidate_word(address addr) { static void invalidate_word(address addr) {
__clear_cache((char *)addr, (char *)(addr + 3)); __builtin___clear_cache((char *)addr, (char *)(addr + 3));
} }
static void invalidate_range(address start, int nbytes) { static void invalidate_range(address start, int nbytes) {
__clear_cache((char *)start, (char *)(start + nbytes)); __builtin___clear_cache((char *)start, (char *)(start + nbytes));
} }
}; };