2022-02-05 20:03:50 +00:00
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# $NetBSD: opt-debug-file.mk,v 1.8 2022/01/11 19:47:34 rillig Exp $
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2020-11-07 19:39:21 +00:00
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#
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# Tests for the -dF command line option, which redirects the debug log
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# to a file instead of writing it to stderr.
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# Enable debug logging for variable assignments and evaluation (-dv)
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# and redirect the debug logging to the given file.
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.MAKEFLAGS: -dvFopt-debug-file.debuglog
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# This output goes to the debug log file.
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VAR= value ${:Uexpanded}
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# Hide the logging output for the remaining actions.
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2022-02-05 20:03:50 +00:00
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# Before main.c 1.362 from 2020-10-03, it was not possible to disable debug
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# logging again. Since then, an easier way is the undocumented option '-d0'.
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2020-11-07 19:39:21 +00:00
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.MAKEFLAGS: -dF/dev/null
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# Make sure that the debug logging file contains some logging.
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DEBUG_OUTPUT:= ${:!cat opt-debug-file.debuglog!}
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# Grmbl. Because of the := operator in the above line, the variable
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# value contains ${:Uexpanded}. This variable expression is expanded
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2022-02-05 20:03:50 +00:00
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# when it is used in the condition below. Therefore, be careful when storing
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# untrusted input in variables.
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2020-11-07 19:39:21 +00:00
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#.MAKEFLAGS: -dc -dFstderr
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.if !${DEBUG_OUTPUT:tW:M*VAR = value expanded*}
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. error ${DEBUG_OUTPUT}
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.endif
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# To get the unexpanded text that was actually written to the debug log
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# file, the content of that log file must not be stored in a variable.
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2022-02-05 20:03:50 +00:00
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#
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# XXX: In the :M modifier, a dollar is escaped using '$$', not '\$'. This
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# escaping scheme unnecessarily differs from all other modifiers.
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2020-11-07 19:39:21 +00:00
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.if !${:!cat opt-debug-file.debuglog!:tW:M*VAR = value $${:Uexpanded}*}
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. error
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.endif
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2022-02-05 20:03:50 +00:00
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.MAKEFLAGS: -d0
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# See Parse_Error.
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.MAKEFLAGS: -dFstdout
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. info This goes to stderr only, once.
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.MAKEFLAGS: -dFstderr
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. info This goes to stderr only, once.
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.MAKEFLAGS: -dFopt-debug-file.debuglog
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. info This goes to stderr, and in addition to the debug log.
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.MAKEFLAGS: -dFstderr -d0c
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.if ${:!cat opt-debug-file.debuglog!:Maddition:[#]} != 1
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. error
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.endif
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# See ApplyModifier_Subst, which calls Error.
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.MAKEFLAGS: -dFstdout
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: This goes to stderr only, once. ${:U:S
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.MAKEFLAGS: -dFstderr
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: This goes to stderr only, once. ${:U:S
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.MAKEFLAGS: -dFopt-debug-file.debuglog
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: This goes to stderr, and in addition to the debug log. ${:U:S
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.MAKEFLAGS: -dFstderr -d0c
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.if ${:!cat opt-debug-file.debuglog!:Mdelimiter:[#]} != 1
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. error
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.endif
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2020-11-07 19:39:21 +00:00
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2022-02-05 20:03:50 +00:00
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# If the debug log file cannot be opened, make prints an error message and
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# exits immediately since the debug log file is usually selected from the
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# command line.
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_:= ${:!rm opt-debug-file.debuglog!}
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.MAKEFLAGS: -dF/nonexistent-6f21c672-a22d-4ef7/opt-debug-file.debuglog
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