1# $NetBSD: opt-debug-file.mk,v 1.10 2023/11/19 21:47:52 rillig Exp $
2#
3# Tests for the -dF command line option, which redirects the debug log
4# to a file instead of writing it to stderr.
5
6# Enable debug logging for variable assignments and evaluation (-dv)
7# and redirect the debug logging to the given file.
8.MAKEFLAGS: -dvFopt-debug-file.debuglog
9
10# This output goes to the debug log file.
11VAR=	value ${:Uexpanded}
12
13# Hide the logging output for the remaining actions.
14# Before main.c 1.362 from 2020-10-03, it was not possible to disable debug
15# logging again.  Since then, an easier way is the undocumented option '-d0'.
16.MAKEFLAGS: -dF/dev/null
17
18# Make sure that the debug logging file contains some logging.
19DEBUG_OUTPUT:=	${:!cat opt-debug-file.debuglog!}
20# Grmbl.  Because of the := operator in the above line, the variable
21# value contains ${:Uexpanded}.  This expression is expanded
22# when it is used in the condition below.  Therefore, be careful when storing
23# untrusted input in variables.
24#.MAKEFLAGS: -dc -dFstderr
25.if !${DEBUG_OUTPUT:tW:M*VAR = value expanded*}
26.  error ${DEBUG_OUTPUT}
27.endif
28
29# To get the unexpanded text that was actually written to the debug log
30# file, the content of that log file must not be stored in a variable.
31#
32# XXX: In the :M modifier, a dollar is escaped using '$$', not '\$'.  This
33# escaping scheme unnecessarily differs from all other modifiers.
34.if !${:!cat opt-debug-file.debuglog!:tW:M*VAR = value $${:Uexpanded}*}
35.  error
36.endif
37
38.MAKEFLAGS: -d0
39
40
41# See Parse_Error.
42.MAKEFLAGS: -dFstdout
43# expect+1: This goes to stderr only, once.
44.  info This goes to stderr only, once.
45.MAKEFLAGS: -dFstderr
46# expect+1: This goes to stderr only, once.
47.  info This goes to stderr only, once.
48.MAKEFLAGS: -dFopt-debug-file.debuglog
49# expect+1: This goes to stderr, and in addition to the debug log.
50.  info This goes to stderr, and in addition to the debug log.
51.MAKEFLAGS: -dFstderr -d0c
52.if ${:!cat opt-debug-file.debuglog!:Maddition:[#]} != 1
53.  error
54.endif
55
56
57# See ApplyModifier_Subst, which calls Error.
58.MAKEFLAGS: -dFstdout
59: This goes to stderr only, once. ${:U:S
60.MAKEFLAGS: -dFstderr
61: This goes to stderr only, once. ${:U:S
62.MAKEFLAGS: -dFopt-debug-file.debuglog
63: This goes to stderr, and in addition to the debug log. ${:U:S
64.MAKEFLAGS: -dFstderr -d0c
65.if ${:!cat opt-debug-file.debuglog!:Mdelimiter:[#]} != 1
66.  error
67.endif
68
69
70# If the debug log file cannot be opened, make prints an error message and
71# exits immediately since the debug log file is usually selected from the
72# command line.
73_:=	${:!rm opt-debug-file.debuglog!}
74.MAKEFLAGS: -dF/nonexistent-6f21c672-a22d-4ef7/opt-debug-file.debuglog
75