[src/trunk]: src/usr.bin/config Tag each .c file with the options that might ...

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

details:   https://anonhg.NetBSD.org/src/rev/e129ef527fd8
branches:  trunk
changeset: 992380:e129ef527fd8
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Mon Aug 27 05:35:00 2018 +0000

description:
Tag each .c file with the options that might have brought it in.

diffstat:

 usr.bin/config/mkmakefile.c |  43 +++++++++++++++++++++++++++++++++++++++++--
 1 files changed, 41 insertions(+), 2 deletions(-)

diffs (71 lines):

diff -r 85e7f397d0ee -r e129ef527fd8 usr.bin/config/mkmakefile.c
--- a/usr.bin/config/mkmakefile.c       Mon Aug 27 05:34:49 2018 +0000
+++ b/usr.bin/config/mkmakefile.c       Mon Aug 27 05:35:00 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: mkmakefile.c,v 1.70 2017/06/16 02:01:10 christos Exp $ */
+/*     $NetBSD: mkmakefile.c,v 1.71 2018/08/27 05:35:00 riastradh Exp $        */
 
 /*
  * Copyright (c) 1992, 1993
@@ -45,7 +45,7 @@
 #endif
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: mkmakefile.c,v 1.70 2017/06/16 02:01:10 christos Exp $");
+__RCSID("$NetBSD: mkmakefile.c,v 1.71 2018/08/27 05:35:00 riastradh Exp $");
 
 #include <sys/param.h>
 #include <ctype.h>
@@ -584,6 +584,34 @@
 }
 
 /*
+ * Emit all options included in a conditional expression
+ */
+static void
+emitopts(FILE *fp, struct condexpr *cond, int include)
+{
+
+       switch (cond->cx_type) {
+       case CX_ATOM:
+               if (include && selectopt(cond->cx_u.atom, NULL))
+                       fprintf(fp, " %s", cond->cx_u.atom);
+               break;
+       case CX_NOT:
+               emitopts(fp, cond->cx_u.not, !include);
+               break;
+       case CX_AND:
+               emitopts(fp, cond->cx_u.and.left, include);
+               emitopts(fp, cond->cx_u.and.right, include);
+               break;
+       case CX_OR:
+               emitopts(fp, cond->cx_u.and.left, include);
+               emitopts(fp, cond->cx_u.and.right, include);
+               break;
+       default:
+               cfgerror("bug");
+       }
+}
+
+/*
  * Emit appending makeoptions.
  */
 static void
@@ -591,6 +619,17 @@
 {
        struct nvlist *nv;
        struct condexpr *cond;
+       size_t i;
+
+       for (i = 0; i < nselfiles; i++) {
+               struct files *const fi = selfiles[i];
+
+               if (fi->fi_optx) {
+                       fprintf(fp, "OPT.%s.c+=", fi->fi_base);
+                       emitopts(fp, fi->fi_optx, 1);
+                       fprintf(fp, "\n");
+               }
+       }
 
        for (nv = appmkoptions; nv != NULL; nv = nv->nv_next)
                fprintf(fp, "%s+=%s\n", nv->nv_name, nv->nv_str);