[src/trunk]: src/usr.bin/make When we change .OBJDIR we should delete any cac...

[sjg <sjg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/083cc53b50af
branches:  trunk
changeset: 352339:083cc53b50af
user:      sjg <sjg%NetBSD.org@localhost>
date:      Sun Mar 26 17:16:03 2017 +0000

description:
When we change .OBJDIR we should delete any cached realpath results
for relative paths.

Reviewed by: christos

diffstat:

 usr.bin/make/main.c |  23 ++++++++++++++++++++---
 1 files changed, 20 insertions(+), 3 deletions(-)

diffs (59 lines):

diff -r 0dfcdbbcd0f1 -r 083cc53b50af usr.bin/make/main.c
--- a/usr.bin/make/main.c       Sun Mar 26 16:53:36 2017 +0000
+++ b/usr.bin/make/main.c       Sun Mar 26 17:16:03 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: main.c,v 1.258 2017/03/11 23:59:02 sjg Exp $   */
+/*     $NetBSD: main.c,v 1.259 2017/03/26 17:16:03 sjg Exp $   */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -69,7 +69,7 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: main.c,v 1.258 2017/03/11 23:59:02 sjg Exp $";
+static char rcsid[] = "$NetBSD: main.c,v 1.259 2017/03/26 17:16:03 sjg Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
@@ -81,7 +81,7 @@
 #if 0
 static char sccsid[] = "@(#)main.c     8.3 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: main.c,v 1.258 2017/03/11 23:59:02 sjg Exp $");
+__RCSID("$NetBSD: main.c,v 1.259 2017/03/26 17:16:03 sjg Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -722,6 +722,7 @@
                        Var_Set(".OBJDIR", objdir, VAR_GLOBAL, 0);
                        setenv("PWD", objdir, 1);
                        Dir_InitDot();
+                       cached_realpath(".OBJDIR", NULL); /* purge */
                        rc = TRUE;
                        if (enterFlag && strcmp(objdir, curdir) != 0)
                                enterFlagObj = TRUE;
@@ -1889,7 +1890,23 @@
        cache->flags = INTERNAL;
 #endif
     }
+    if (resolved == NULL && strcmp(pathname, ".OBJDIR") == 0) {
+       /* purge any relative paths */
+       Hash_Entry *he, *nhe;
+       Hash_Search hs;
 
+       he = Hash_EnumFirst(&cache->context, &hs);
+       while (he) {
+           nhe = Hash_EnumNext(&hs);
+           if (he->name[0] != '/') {
+               if (DEBUG(DIR))
+                   fprintf(stderr, "cached_realpath: purging %s\n", he->name);
+               Hash_DeleteEntry(&cache->context, he);
+           }
+           he = nhe;
+       }
+       return NULL;
+    }
     if ((rp = Var_Value(pathname, cache, &cp)) != NULL) {
        /* a hit */
        strncpy(resolved, rp, MAXPATHLEN);