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[src/trunk]: src/usr.bin/make make(1): add stricter variants for remaining Ls...
details: https://anonhg.NetBSD.org/src/rev/369e53756f2e
branches: trunk
changeset: 937786:369e53756f2e
user: rillig <rillig%NetBSD.org@localhost>
date: Wed Aug 26 22:55:46 2020 +0000
description:
make(1): add stricter variants for remaining Lst functions
In most cases the Lst functions are only called when the arguments are
indeed valid. It's not guaranteed though, therefore each function call
needs to be analyzed and converted individually.
While here, remove a few statements that were only useful when the Lst
functions handled circular lists.
diffstat:
usr.bin/make/arch.c | 42 ++----------
usr.bin/make/dir.c | 12 +-
usr.bin/make/lst.c | 159 ++++++++++++++++++++++++++++++++++++++------------
usr.bin/make/lst.h | 14 +++-
usr.bin/make/main.c | 16 ++--
usr.bin/make/make.c | 12 +-
usr.bin/make/meta.c | 10 +-
usr.bin/make/parse.c | 46 +++++++-------
usr.bin/make/suff.c | 75 +++++++++++------------
usr.bin/make/targ.c | 26 ++++----
10 files changed, 239 insertions(+), 173 deletions(-)
diffs (truncated from 1060 to 300 lines):
diff -r 5be8a45d364b -r 369e53756f2e usr.bin/make/arch.c
--- a/usr.bin/make/arch.c Wed Aug 26 22:54:30 2020 +0000
+++ b/usr.bin/make/arch.c Wed Aug 26 22:55:46 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: arch.c,v 1.96 2020/08/23 18:59:01 rillig Exp $ */
+/* $NetBSD: arch.c,v 1.97 2020/08/26 22:55:46 rillig Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1993
@@ -69,14 +69,14 @@
*/
#ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: arch.c,v 1.96 2020/08/23 18:59:01 rillig Exp $";
+static char rcsid[] = "$NetBSD: arch.c,v 1.97 2020/08/26 22:55:46 rillig Exp $";
#else
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)arch.c 8.2 (Berkeley) 1/2/94";
#else
-__RCSID("$NetBSD: arch.c,v 1.96 2020/08/23 18:59:01 rillig Exp $");
+__RCSID("$NetBSD: arch.c,v 1.97 2020/08/26 22:55:46 rillig Exp $");
#endif
#endif /* not lint */
#endif
@@ -391,7 +391,7 @@
*/
free(buf);
} else if (Dir_HasWildcards(memName)) {
- Lst members = Lst_Init();
+ Lst members = Lst_Init();
Buffer nameBuf;
Buf_Init(&nameBuf, 0);
@@ -422,7 +422,7 @@
Lst_AppendS(nodeLst, gn);
}
}
- Lst_Destroy(members, NULL);
+ Lst_FreeS(members);
Buf_Destroy(&nameBuf, TRUE);
} else {
Buffer nameBuf;
@@ -1288,45 +1288,19 @@
return oodate;
}
-/*-
- *-----------------------------------------------------------------------
- * Arch_Init --
- * Initialize things for this module.
- *
- * Results:
- * None.
- *
- * Side Effects:
- * The 'archives' list is initialized.
- *
- *-----------------------------------------------------------------------
- */
+/* Initialize things for this module. */
void
Arch_Init(void)
{
archives = Lst_Init();
}
-
-
-/*-
- *-----------------------------------------------------------------------
- * Arch_End --
- * Cleanup things for this module.
- *
- * Results:
- * None.
- *
- * Side Effects:
- * The 'archives' list is freed
- *
- *-----------------------------------------------------------------------
- */
+/* Clean up things for this module. */
void
Arch_End(void)
{
#ifdef CLEANUP
- Lst_Destroy(archives, ArchFree);
+ Lst_DestroyS(archives, ArchFree);
#endif
}
diff -r 5be8a45d364b -r 369e53756f2e usr.bin/make/dir.c
--- a/usr.bin/make/dir.c Wed Aug 26 22:54:30 2020 +0000
+++ b/usr.bin/make/dir.c Wed Aug 26 22:55:46 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: dir.c,v 1.110 2020/08/23 16:58:02 rillig Exp $ */
+/* $NetBSD: dir.c,v 1.111 2020/08/26 22:55:46 rillig Exp $ */
/*
* Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -70,14 +70,14 @@
*/
#ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: dir.c,v 1.110 2020/08/23 16:58:02 rillig Exp $";
+static char rcsid[] = "$NetBSD: dir.c,v 1.111 2020/08/26 22:55:46 rillig Exp $";
#else
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)dir.c 8.2 (Berkeley) 1/2/94";
#else
-__RCSID("$NetBSD: dir.c,v 1.110 2020/08/23 16:58:02 rillig Exp $");
+__RCSID("$NetBSD: dir.c,v 1.111 2020/08/26 22:55:46 rillig Exp $");
#endif
#endif /* not lint */
#endif
@@ -461,9 +461,9 @@
Dir_Destroy(dotLast);
Dir_Destroy(dot);
Dir_ClearPath(dirSearchPath);
- Lst_Destroy(dirSearchPath, NULL);
+ Lst_FreeS(dirSearchPath);
Dir_ClearPath(openDirectories);
- Lst_Destroy(openDirectories, NULL);
+ Lst_FreeS(openDirectories);
Hash_DeleteTable(&mtimes);
#endif
}
@@ -895,7 +895,7 @@
path = Lst_Init();
(void)Dir_AddDir(path, dirpath);
DirExpandInt(cp + 1, path, expansions);
- Lst_Destroy(path, NULL);
+ Lst_FreeS(path);
}
} else {
/*
diff -r 5be8a45d364b -r 369e53756f2e usr.bin/make/lst.c
--- a/usr.bin/make/lst.c Wed Aug 26 22:54:30 2020 +0000
+++ b/usr.bin/make/lst.c Wed Aug 26 22:55:46 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: lst.c,v 1.41 2020/08/23 16:58:02 rillig Exp $ */
+/* $NetBSD: lst.c,v 1.42 2020/08/26 22:55:46 rillig Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1993
@@ -37,11 +37,11 @@
#include "make.h"
#ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: lst.c,v 1.41 2020/08/23 16:58:02 rillig Exp $";
+static char rcsid[] = "$NetBSD: lst.c,v 1.42 2020/08/26 22:55:46 rillig Exp $";
#else
#include <sys/cdefs.h>
#ifndef lint
-__RCSID("$NetBSD: lst.c,v 1.41 2020/08/23 16:58:02 rillig Exp $");
+__RCSID("$NetBSD: lst.c,v 1.42 2020/08/26 22:55:46 rillig Exp $");
#endif /* not lint */
#endif
@@ -142,36 +142,38 @@
return newList;
}
+/* Free a list and all its nodes. The list data itself are not freed though. */
+void
+Lst_FreeS(Lst list)
+{
+ LstNode node;
+ LstNode next;
+
+ assert(LstIsValid(list));
+
+ for (node = list->first; node != NULL; node = next) {
+ next = node->next;
+ free(node);
+ }
+
+ free(list);
+}
+
/* Destroy a list and free all its resources. If the freeProc is given, it is
* called with the datum from each node in turn before the node is freed. */
void
-Lst_Destroy(Lst list, LstFreeProc freeProc)
+Lst_DestroyS(Lst list, LstFreeProc freeProc)
{
LstNode node;
- LstNode next = NULL;
+ LstNode next;
- if (list == NULL)
- return;
+ assert(LstIsValid(list));
+ assert(freeProc != NULL);
- /* To ease scanning */
- if (list->last != NULL)
- list->last->next = NULL;
- else {
- free(list);
- return;
- }
-
- if (freeProc) {
- for (node = list->first; node != NULL; node = next) {
- next = node->next;
- freeProc(node->datum);
- free(node);
- }
- } else {
- for (node = list->first; node != NULL; node = next) {
- next = node->next;
- free(node);
- }
+ for (node = list->first; node != NULL; node = next) {
+ next = node->next;
+ freeProc(node->datum);
+ free(node);
}
free(list);
@@ -340,6 +342,15 @@
}
}
+/* Return the first node from the given list, or NULL if the list is empty. */
+LstNode
+Lst_FirstS(Lst list)
+{
+ assert(LstIsValid(list));
+
+ return list->first;
+}
+
/* Return the last node from the given list, or NULL if the list is empty or
* invalid. */
LstNode
@@ -352,6 +363,15 @@
}
}
+/* Return the last node from the given list, or NULL if the list is empty. */
+LstNode
+Lst_LastS(Lst list)
+{
+ assert(LstIsValid(list));
+
+ return list->last;
+}
+
/* Return the successor to the given node on its list, or NULL. */
LstNode
Lst_Succ(LstNode node)
@@ -363,6 +383,15 @@
}
}
+/* Return the successor to the given node on its list, or NULL. */
+LstNode
+Lst_SuccS(LstNode node)
+{
+ assert(LstNodeIsValid(node));
+
+ return node->next;
+}
+
/* Return the predecessor to the given node on its list, or NULL. */
LstNode
Lst_PrevS(LstNode node)
@@ -391,6 +420,15 @@
return !LstIsValid(list) || LstIsEmpty(list);
}
+/* Return TRUE if the given list is empty. */
+Boolean
+Lst_IsEmptyS(Lst list)
+{
+ assert(LstIsValid(list));
+
+ return LstIsEmpty(list);
+}
+
/* Return the first node from the given list for which the given comparison
* function returns 0, or NULL if none of the nodes matches. */
LstNode
@@ -399,27 +437,45 @@
return Lst_FindFrom(list, Lst_First(list), cmp, cmpData);
}
+/* Return the first node from the given list for which the given comparison
+ * function returns 0, or NULL if none of the nodes matches. */
+LstNode
+Lst_FindS(Lst list, LstFindProc cmp, const void *cmpData)
+{
+ if (LstIsEmpty(list))
+ return NULL;
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