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      1 # $NetBSD: deptgt-end-jobs.mk,v 1.1 2020/09/23 03:06:38 rillig Exp $
      2 #
      3 # Tests for the special target .END in dependency declarations,
      4 # which is run after making the desired targets.
      5 #
      6 # This test is very similar to deptgt-end.mk, except for the -j option.
      7 # This option enables parallel mode, in which the code from job.c partially
      8 # replaces the code from compat.c.
      9 #
     10 # Before 2020-08-22, this test crashed with a null pointer dereference.
     11 # Before 2020-09-23, this test crashed with an assertion failure.
     12 .MAKEFLAGS: -j 8
     13 
     14 VAR=	Should not be expanded.
     15 
     16 .BEGIN:
     17 	: $@ '$${VAR}'
     18 	...
     19 	: $@ '$${VAR}' deferred
     20 # Oops: The deferred command must not be expanded twice.
     21 # The Var_Subst in Compat_RunCommand looks suspicious.
     22 # The Var_Subst in JobSaveCommand looks suspicious.
     23 
     24 .END:
     25 	: $@ '$${VAR}'
     26 	...
     27 	: $@ '$${VAR}' deferred
     28 
     29 all:
     30 	: $@ '$${VAR}'
     31 	...
     32 	: $@ '$${VAR}' deferred
     33 # Oops: The deferred command must not be expanded twice.
     34 # The Var_Subst in Compat_RunCommand looks suspicious.
     35 # The Var_Subst in JobSaveCommand looks suspicious.
     36 
     37 # The deferred commands are run in the order '.END .BEGIN all'.
     38 # This may be unexpected at first since the natural order would be
     39 # '.BEGIN all .END', but it is implemented correctly.
     40 #
     41 # At the point where the commands of a node with deferred commands are run,
     42 # the deferred commands are appended to the commands of the .END node.
     43 # This happens in Compat_RunCommand, and to prevent an endless loop, the
     44 # deferred commands of the .END node itself are not appended to itself.
     45 # Instead, the deferred commands of the .END node are run as if they were
     46 # immediate commands.
     47