35 lines
1.3 KiB
C
35 lines
1.3 KiB
C
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// Copyright 2014 The BoringSSL Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <ring-core/base.h>
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// Our assembly does not use the GOT to reference symbols, which means
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// references to visible symbols will often require a TEXTREL. This is
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// undesirable, so all assembly-referenced symbols should be hidden. CPU
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// capabilities are the only such symbols defined in C. Explicitly hide them,
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// rather than rely on being built with -fvisibility=hidden.
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#if defined(OPENSSL_WINDOWS)
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#define HIDDEN
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#else
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#define HIDDEN __attribute__((visibility("hidden")))
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#endif
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#if defined(OPENSSL_X86_64)
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// These are declared as `AtomicU32` on the Rust side.
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HIDDEN uint32_t avx2_available = 0;
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HIDDEN uint32_t adx_bmi2_available = 0;
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#elif defined(OPENSSL_ARM)
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HIDDEN uint32_t neon_available = 0;
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#endif
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