57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
// Copyright 2020 The gVisor 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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// http://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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#ifndef GVISOR_TEST_UTIL_PLATFORM_UTIL_H_
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#define GVISOR_TEST_UTIL_PLATFORM_UTIL_H_
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namespace gvisor {
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namespace testing {
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// PlatformSupport is a generic enumeration of classes of support.
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//
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// It is up to the individual functions and callers to agree on the precise
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// definition for each case. The document here generally refers to 32-bit
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// as an example. Many cases will use only NotSupported and Allowed.
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enum class PlatformSupport {
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// The feature is not supported on the current platform.
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//
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// In the case of 32-bit, this means that calls will generally be interpreted
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// as 64-bit calls, and there is no support for 32-bit binaries, long calls,
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// etc. This usually means that the underlying implementation just pretends
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// that 32-bit doesn't exist.
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NotSupported,
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// Calls will be ignored by the kernel with a fixed error.
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Ignored,
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// Calls will result in a SIGSEGV or similar fault.
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Segfault,
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// The feature is supported as expected.
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//
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// In the case of 32-bit, this means that the system call or far call will be
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// handled properly.
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Allowed,
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};
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PlatformSupport PlatformSupport32Bit();
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PlatformSupport PlatformSupportAlignmentCheck();
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PlatformSupport PlatformSupportMultiProcess();
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PlatformSupport PlatformSupportInt3();
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} // namespace testing
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} // namespace gvisor
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#endif // GVISOR_TEST_UTIL_PLATFORM_UTL_H_
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