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53 lines
2.3 KiB
C
53 lines
2.3 KiB
C
/*-
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* This file is in the public domain
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*/
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/*
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* 6 digits of version. The most significant are branch indicators at the
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* time when the last incompatible change was made (which is why it is
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* presently 6 on 7-current). The least significant digits are incremented
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* as described below. The format is similar to the __FreeBSD_version, but
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* not tied to it.
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*
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* DO NOT CASUALLY BUMP THIS NUMBER! The rules are not the same as shared
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* libs or param.h/osreldate.
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*
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* It is the version number of the protocol between config(8) and the
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* sys/conf/ Makefiles (the kernel build system).
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*
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* It is now also used to trap certain problems that the syntax parser cannot
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* detect.
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*
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* Unfortunately, there is no version number for user supplied config files.
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*
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* Once, config(8) used to silently report errors and continue anyway. This
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* was a huge problem for 'make buildkernel' which was run with the installed
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* /usr/sbin/config, not a cross built one. We started bumping the version
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* number as a way to trap cases where the previous installworld was not
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* compatible with the new buildkernel. The buildtools phase and much more
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* comprehensive error code returns solved this original problem.
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*
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* Most end-users will use buildkernel and the build tools from buildworld.
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* The people that are inconvenienced by gratuitous bumps are developers
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* who run config by hand. However, developers shouldn't gratuitously be
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* inconvenienced.
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*
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* One should bump the CONFIGVERS in the following ways:
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*
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* (1) If you change config such that it won't read old config files,
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* then bump the major number. You shouldn't be doing this unless
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* you are overhauling config. Do not casually bump this number
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* and by implication do not make changes that would force a bump
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* of this number casually. You should limit major bumps to once
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* per branch.
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* (2) For each new feature added, bump the minor version of this file.
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* When a new feature is actually used by the build system, update the
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* %VERSREQ field in the Makefile.$ARCH of all the affected makefiles
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* (typically all of them).
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*/
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#define CONFIGVERS 600018
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#define MAJOR_VERS(x) ((x) / 100000)
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/* Last config(8) version to require envmode/hintmode */
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#define CONFIGVERS_ENVMODE_REQ 600015
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