956e45f6fb
Lots of new unit-tests increase code coverage. Lots of refactoring, cleanup and simlpification to reduce code size. Fixes for Bug 223564 and 245807 Updates to dirdeps.mk and meta2deps.py
62 lines
2.3 KiB
Makefile
62 lines
2.3 KiB
Makefile
# $NetBSD: dotwait.mk,v 1.3 2020/10/24 08:50:17 rillig Exp $
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THISMAKEFILE:= ${.PARSEDIR}/${.PARSEFILE}
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TESTS= simple recursive shared cycle
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PAUSE= sleep 1
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# Use a .for loop rather than dependencies here, to ensure
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# that the tests are run one by one, with parallelism
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# only within tests.
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# Ignore "--- target ---" lines printed by parallel make.
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all:
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.for t in ${TESTS}
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@${.MAKE} -f ${THISMAKEFILE} -j4 $t 2>&1 | grep -v "^--- "
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.endfor
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#
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# Within each test, the names of the sub-targets follow these
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# conventions:
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# * If it's expected that two or more targets may be made in parallel,
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# then the target names will differ only in an alphabetic component
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# such as ".a" or ".b".
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# * If it's expected that two or more targets should be made in sequence
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# then the target names will differ in numeric components, such that
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# lexical ordering of the target names matches the expected order
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# in which the targets should be made.
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#
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# Targets may echo ${PARALLEL_TARG} to print a modified version
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# of their own name, in which alphabetic components like ".a" or ".b"
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# are converted to ".*". Two targets that are expected to
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# be made in parallel will thus print the same strings, so that the
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# output is independent of the order in which these targets are made.
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#
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PARALLEL_TARG= ${.TARGET:C/\.[a-z]/.*/g:Q}
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.DEFAULT:
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@echo ${PARALLEL_TARG}; ${PAUSE}; echo ${PARALLEL_TARG}
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_ECHOUSE: .USE
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@echo ${PARALLEL_TARG}; ${PAUSE}; echo ${PARALLEL_TARG}
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# simple: no recursion, no cycles
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simple: simple.1 .WAIT simple.2
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# recursive: all children of the left hand side of the .WAIT
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# must be made before any child of the right hand side.
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recursive: recursive.1.99 .WAIT recursive.2.99
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recursive.1.99: recursive.1.1.a recursive.1.1.b _ECHOUSE
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recursive.2.99: recursive.2.1.a recursive.2.1.b _ECHOUSE
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# shared: both shared.1.99 and shared.2.99 depend on shared.0.
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# shared.0 must be made first, even though it is a child of
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# the right hand side of the .WAIT.
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shared: shared.1.99 .WAIT shared.2.99
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shared.1.99: shared.0 _ECHOUSE
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shared.2.99: shared.2.1 shared.0 _ECHOUSE
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# cycle: the cyclic dependency must not cause infinite recursion
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# leading to stack overflow and a crash.
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cycle: cycle.1.99 .WAIT cycle.2.99
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cycle.2.99: cycle.2.98 _ECHOUSE
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cycle.2.98: cycle.2.97 _ECHOUSE
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cycle.2.97: cycle.2.99 _ECHOUSE
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