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39 lines
1.0 KiB
39 lines
1.0 KiB
/* |
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* Copyright (c) 2015 Wind River Systems, Inc. |
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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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*/ |
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/** @file |
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* |
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* @brief Per-thread errno accessor function |
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* |
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* Allow accessing the errno for the current thread without involving the |
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* context switching. |
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*/ |
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#include <kernel_structs.h> |
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/* |
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* Define _k_neg_eagain for use in assembly files as errno.h is |
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* not assembly language safe. |
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* FIXME: wastes 4 bytes |
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*/ |
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const int _k_neg_eagain = -EAGAIN; |
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#ifdef CONFIG_ERRNO |
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int *_get_errno(void) |
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{ |
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return &_current->errno_var; |
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} |
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#endif
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