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[src/trunk]: src/usr.bin/make make(1): document the recently failed assertion...
details: https://anonhg.NetBSD.org/src/rev/9a5132b7fb79
branches: trunk
changeset: 1013142:9a5132b7fb79
user: rillig <rillig%NetBSD.org@localhost>
date: Sat Aug 22 00:13:16 2020 +0000
description:
make(1): document the recently failed assertion in Lst_OpenS
In make, a list has a single iterator that can be used with Lst_Open,
Lst_Next and Lst_Close. Because this is a single iterator, it doesn't
make sense to call Lst_Open twice in a row without the corresponding
Lst_Close. Exactly this happens in jobs mode though.
diffstat:
usr.bin/make/lst.c | 22 +++++++++++++---------
1 files changed, 13 insertions(+), 9 deletions(-)
diffs (55 lines):
diff -r d136cfd187bd -r 9a5132b7fb79 usr.bin/make/lst.c
--- a/usr.bin/make/lst.c Fri Aug 21 23:30:02 2020 +0000
+++ b/usr.bin/make/lst.c Sat Aug 22 00:13:16 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: lst.c,v 1.18 2020/08/21 14:33:32 rillig Exp $ */
+/* $NetBSD: lst.c,v 1.19 2020/08/22 00:13:16 rillig Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1993
@@ -34,15 +34,14 @@
#include <assert.h>
-#include "lst.h"
-#include "make_malloc.h"
+#include "make.h"
#ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: lst.c,v 1.18 2020/08/21 14:33:32 rillig Exp $";
+static char rcsid[] = "$NetBSD: lst.c,v 1.19 2020/08/22 00:13:16 rillig Exp $";
#else
#include <sys/cdefs.h>
#ifndef lint
-__RCSID("$NetBSD: lst.c,v 1.18 2020/08/21 14:33:32 rillig Exp $");
+__RCSID("$NetBSD: lst.c,v 1.19 2020/08/22 00:13:16 rillig Exp $");
#endif /* not lint */
#endif
@@ -643,10 +642,7 @@
if (!LstValid(list)) {
return FAILURE;
}
- list->isOpen = TRUE;
- list->lastAccess = LstIsEmpty(list) ? Head : Unknown;
- list->curr = NULL;
-
+ Lst_OpenS(list);
return SUCCESS;
}
@@ -656,6 +652,14 @@
Lst_OpenS(Lst list)
{
assert(LstValid(list));
+#if 0
+ /* XXX: This assertion fails for NetBSD's "build.sh -j1 tools", somewhere
+ * between "dependall ===> compat" and "dependall ===> binstall".
+ * Building without the "-j1" succeeds though. */
+ if (list->isOpen)
+ Parse_Error(PARSE_WARNING, "Internal inconsistency: list opened twice");
+ assert(!list->isOpen);
+#endif
list->isOpen = TRUE;
list->lastAccess = LstIsEmpty(list) ? Head : Unknown;
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