1#                                                                    -*-perl-*-
2
3$description = "Test parallelism (-j) option.";
4
5
6$details = "This test creates a makefile with two double-colon default
7rules.  The first rule has a series of sleep and echo commands
8intended to run in series.  The second and third have just an
9echo statement.  When make is called in this test, it is given
10the -j option with a value of 4.  This tells make that it may
11start up to four jobs simultaneously.  In this case, since the
12first command is a sleep command, the output of the second
13and third commands will appear before the first if indeed
14make is running all of these commands in parallel.";
15
16if (!$parallel_jobs) {
17  return -1;
18}
19
20if ($vos) {
21  $sleep_command = "sleep -seconds";
22}
23else {
24  $sleep_command = "sleep";
25}
26
27
28run_make_test("
29all : def_1 def_2 def_3
30def_1 : ; \@echo ONE; $sleep_command 3 ; echo TWO
31def_2 : ; \@$sleep_command 2 ; echo THREE
32def_3 : ; \@$sleep_command 1 ; echo FOUR",
33              '-j4', "ONE\nFOUR\nTHREE\nTWO");
34
35# Test parallelism with included files.  Here we sleep/echo while
36# building the included files, to test that they are being built in
37# parallel.
38run_make_test("
39all: 1 2; \@echo success
40-include 1.inc 2.inc
411.inc: ; \@echo ONE.inc; $sleep_command 2; echo TWO.inc; echo '1: ; \@echo ONE; $sleep_command 2; echo TWO' > \$\@
422.inc: ; \@$sleep_command 1; echo THREE.inc; echo '2: ; \@$sleep_command 1; echo THREE' > \$\@",
43              "-j4",
44              "ONE.inc\nTHREE.inc\nTWO.inc\nONE\nTHREE\nTWO\nsuccess\n");
45
46unlink('1.inc', '2.inc');
47
48
49# Test parallelism with included files--this time recurse first and make
50# sure the jobserver works.
51run_make_test("
52recurse: ; \@\$(MAKE) --no-print-directory -f #MAKEFILE# INC=yes all
53all: 1 2; \@echo success
54
55INC = no
56ifeq (\$(INC),yes)
57-include 1.inc 2.inc
58endif
59
601.inc: ; \@echo ONE.inc; $sleep_command 2; echo TWO.inc; echo '1: ; \@echo ONE; $sleep_command 2; echo TWO' > \$\@
612.inc: ; \@$sleep_command 1; echo THREE.inc; echo '2: ; \@$sleep_command 1; echo THREE' > \$\@",
62              "-j4",
63              "ONE.inc\nTHREE.inc\nTWO.inc\nONE\nTHREE\nTWO\nsuccess\n");
64
65unlink('1.inc', '2.inc');
66
67# Grant Taylor reports a problem where tokens can be lost (not written back
68# to the pipe when they should be): this happened when there is a $(shell ...)
69# function in an exported recursive variable.  I added some code to check
70# for this situation and print a message if it occurred.  This test used
71# to trigger this code when I added it but no longer does after the fix.
72
73run_make_test("
74export HI = \$(shell \$(\$\@.CMD))
75first.CMD = echo hi
76second.CMD = $sleep_command 4; echo hi
77
78.PHONY: all first second
79all: first second
80
81first second: ; \@echo \$\@; $sleep_command 1; echo \$\@",
82              '-j2', "first\nfirst\nsecond\nsecond");
83
84# Michael Matz <matz@suse.de> reported a bug where if make is running in
85# parallel without -k and two jobs die in a row, but not too close to each
86# other, then make will quit without waiting for the rest of the jobs to die.
87
88run_make_test("
89.PHONY: all fail.1 fail.2 fail.3 ok
90all: fail.1 ok fail.2 fail.3
91
92fail.1 fail.2 fail.3:
93	\@sleep \$(patsubst fail.%,%,\$\@)
94	\@echo Fail
95	\@exit 1
96
97ok:
98	\@sleep 4
99	\@echo Ok done",
100              '-rR -j5', 'Fail
101#MAKE#: *** [fail.1] Error 1
102#MAKE#: *** Waiting for unfinished jobs....
103Fail
104#MAKE#: *** [fail.2] Error 1
105Fail
106#MAKE#: *** [fail.3] Error 1
107Ok done',
108             512);
109
110
111# Test for Savannah bug #15641.
112#
113run_make_test('
114.PHONY: all
115all:; @:
116
117-include foo.d
118
119foo.d: comp
120	@echo building $@
121
122comp: mod_a.o mod_b.o; @:
123
124mod_a.o mod_b.o:
125	@exit 1
126', '-j2', '');
127
128
129# Make sure that all jobserver FDs are closed if we need to re-exec the
130# master copy.
131#
132# First, find the "default" file descriptors we normally use
133# Then make sure they're still used.
134#
135# Right now we don't have a way to run a makefile and capture the output
136# without checking it, so we can't really write this test.
137
138# run_make_test('
139# submake: ; @$(MAKE) --no-print-directory -f #MAKEFILE# fdprint 5>output
140
141# dependfile: ; @echo FOO=bar > $@
142
143# INCL := true
144
145# FOO=foo
146# ifeq ($(INCL),true)
147# -include dependfile
148# endif
149
150# fdprint: ; @echo $(filter --jobserver%,$(MAKEFLAGS))
151
152# recurse: ; @$(MAKE) --no-print-directory -f #MAKEFILE# submake INCL=true',
153#               '-j2 INCL=false fdprint',
154#               'bar');
155
156# unlink('dependfile', 'output');
157
158
159# # Do it again, this time where the include is done by the non-master make.
160# run_make_test(undef, '-j2 recurse INCL=false', 'bar');
161
162# unlink('dependfile', 'output');
163
1641;
165