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# $NetBSD: opt-debug-file.mk,v 1.13 2025/08/09 23:09:55 rillig Exp $
#
# Tests for the -dF command line option, which redirects the debug log
# to a file instead of writing it to stderr.
# Enable debug logging for variable assignments and evaluation (-dv)
# and redirect the debug logging to the given file.
.MAKEFLAGS: -dvFopt-debug-file.debuglog
# This output goes to the debug log file.
VAR= value ${:Uexpanded}
# Hide the logging output for the remaining actions.
# Before main.c 1.362 from 2020-10-03, it was not possible to disable debug
# logging again. Since then, an easier way is the undocumented option '-d0'.
.MAKEFLAGS: -dF/dev/null
# Make sure that the debug logging file contains some logging.
DEBUG_OUTPUT:= ${:!cat opt-debug-file.debuglog!}
# Grmbl. Because of the := operator in the above line, the variable
# value contains ${:Uexpanded}. This expression is expanded
# when it is used in the condition below. Therefore, be careful when storing
# untrusted input in variables.
#.MAKEFLAGS: -dc -dFstderr
.if !${DEBUG_OUTPUT:tW:M*VAR = value expanded*}
. error ${DEBUG_OUTPUT}
.endif
# To get the unexpanded text that was actually written to the debug log
# file, the content of that log file must not be stored in a variable
# directly. Instead, it can be processed in a single expression by a chain
# of modifiers.
#
# XXX: In the :M modifier, a dollar is escaped using '$$', not '\$'. This
# escaping scheme unnecessarily differs from all other modifiers.
.if !${:!cat opt-debug-file.debuglog!:tW:M*VAR = value $${:Uexpanded}*}
. error
.endif
# To get the unexpanded text that was actually written to the debug log
# file, the content of that log file must not be stored in a variable
# directly. Instead, each dollar sign must be escaped first.
DEBUG_OUTPUT:= ${:!cat opt-debug-file.debuglog!:S,\$,\$\$,g}
.if ${DEBUG_OUTPUT:M*Uexpanded*} != "\${:Uexpanded}"
. error
.endif
.MAKEFLAGS: -d0
# See Parse_Error.
.MAKEFLAGS: -dFstdout
# expect+1: This goes to stdout only, once.
. info This goes to stdout only, once.
.MAKEFLAGS: -dFstderr
# expect+1: This goes to stderr only, once.
. info This goes to stderr only, once.
.MAKEFLAGS: -dFopt-debug-file.debuglog
# expect+1: This goes to stderr, and in addition to the debug log.
. info This goes to stderr, and in addition to the debug log.
.MAKEFLAGS: -dFstderr -d0c
.if ${:!cat opt-debug-file.debuglog!:Maddition:[#]} != 1
. error
.endif
# See Main_ParseArgLine, which calls Error.
.MAKEFLAGS: -dFstdout
# expect: make: Unterminated quoted string [make 'This goes to stdout only, once.]
.MAKEFLAGS: 'This goes to stdout only, once.
.MAKEFLAGS: -dFstderr
# expect: make: Unterminated quoted string [make 'This goes to stderr only, once.]
.MAKEFLAGS: 'This goes to stderr only, once.
.MAKEFLAGS: -dFopt-debug-file.debuglog
# expect: make: Unterminated quoted string [make 'This goes to stderr, and in addition to the debug log.]
.MAKEFLAGS: 'This goes to stderr, and in addition to the debug log.
.MAKEFLAGS: -dFstderr -d0c
.if ${:!cat opt-debug-file.debuglog!:MUnterminated:[#]} != 1
. error
.endif
# If the debug log file cannot be opened, make prints an error message and
# exits immediately since the debug log file is usually selected from the
# command line.
_:= ${:!rm opt-debug-file.debuglog!}
.MAKEFLAGS: -dF/nonexistent-6f21c672-a22d-4ef7/opt-debug-file.debuglog
|
