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fb9185cdb8
Macros SYS_KERNEL_VER_MAJOR(), SYS_KERNEL_VER_MINOR(), SYS_KERNEL_VER_PATCHLEVEL() capped their return values to 0-15 range, even though documentation says "Each of these elements must therefore be in the range 0 to 255, inclusive". Fix to corresponds to the docs. This issue especially affected SYS_KERNEL_VER_PATCHLEVEL(), which could be set to a high value to represent WIP code in-between releases. Change-Id: I0b72fb68f3f0f8d3d3b321a5ba2c48671879dfbc Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/* kernel version support */
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/*
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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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#ifndef _kernel_version__h_
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#define _kernel_version__h_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* The kernel version has been converted from a string to a four-byte
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* quantity that is divided into two parts.
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*
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* Part 1: The three most significant bytes represent the kernel's
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* numeric version, x.y.z. These fields denote:
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* x -- major release
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* y -- minor release
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* z -- patchlevel release
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* Each of these elements must therefore be in the range 0 to 255, inclusive.
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*
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* Part 2: The least significant byte is reserved for future use.
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*/
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#define SYS_KERNEL_VER_MAJOR(ver) ((ver >> 24) & 0xFF)
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#define SYS_KERNEL_VER_MINOR(ver) ((ver >> 16) & 0xFF)
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#define SYS_KERNEL_VER_PATCHLEVEL(ver) ((ver >> 8) & 0xFF)
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/* kernel version routines */
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extern uint32_t sys_kernel_version_get(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _kernel_version__h_ */
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