72 lines
2.5 KiB
Makefile
72 lines
2.5 KiB
Makefile
# $NetBSD: opt-debug-file.mk,v 1.8 2022/01/11 19:47:34 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 ${:Uexpanded}. This variable expression is expanded
|
|
# when it is used in the condition below. Therefore, be careful when storing
|
|
# untrusted input in variables.
|
|
#.MAKEFLAGS: -dc -dFstderr
|
|
.if !${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.
|
|
#
|
|
# 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
|
|
|
|
.MAKEFLAGS: -d0
|
|
|
|
|
|
# See Parse_Error.
|
|
.MAKEFLAGS: -dFstdout
|
|
. info This goes to stderr only, once.
|
|
.MAKEFLAGS: -dFstderr
|
|
. info This goes to stderr only, once.
|
|
.MAKEFLAGS: -dFopt-debug-file.debuglog
|
|
. 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 ApplyModifier_Subst, which calls Error.
|
|
.MAKEFLAGS: -dFstdout
|
|
: This goes to stderr only, once. ${:U:S
|
|
.MAKEFLAGS: -dFstderr
|
|
: This goes to stderr only, once. ${:U:S
|
|
.MAKEFLAGS: -dFopt-debug-file.debuglog
|
|
: This goes to stderr, and in addition to the debug log. ${:U:S
|
|
.MAKEFLAGS: -dFstderr -d0c
|
|
.if ${:!cat opt-debug-file.debuglog!:Mdelimiter:[#]} != 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
|