Initial revision

1988-07-22 19:01:13 +00:00
parent 05e7adc71d
commit b8880b3692
11 changed files with 1971 additions and 0 deletions
--- a/util/make/check.c
+++ b/util/make/check.c
@@ -0,0 +1,117 @@
+/*
+ *	Check structures for make.
+ *
+ *	$Header$
+ */
+
+#include <stdio.h>
+#include "h.h"
+
+
+/*
+ *	Prints out the structures as defined in memory.  Good for check
+ *	that you make file does what you want (and for debugging make).
+ */
+void
+prt()
+{
+	register struct name *		np;
+	register struct depend *	dp;
+	register struct line *		lp;
+	register struct cmd *		cp;
+	register struct macro *		mp;
+
+
+	for (mp = macrohead; mp; mp = mp->m_next)
+		fprintf(stderr, "%s = %s\n", mp->m_name, mp->m_val);
+
+	fputc('\n', stderr);
+
+	for (np = namehead.n_next; np; np = np->n_next)
+	{
+		if (np->n_flag & N_DOUBLE)
+			fprintf(stderr, "%s::\n", np->n_name);
+		else
+			fprintf(stderr, "%s:\n", np->n_name);
+		if (np == firstname)
+			fprintf(stderr, "(MAIN NAME)\n");
+		for (lp = np->n_line; lp; lp = lp->l_next)
+		{
+			fputc(':', stderr);
+			for (dp = lp->l_dep; dp; dp = dp->d_next)
+				fprintf(stderr, " %s", dp->d_name->n_name);
+			fputc('\n', stderr);
+
+			for (cp = lp->l_cmd; cp; cp = cp->c_next)
+#ifdef os9
+				fprintf(stderr, "-   %s\n", cp->c_cmd);
+#else
+				fprintf(stderr, "-\t%s\n", cp->c_cmd);
+#endif
+			fputc('\n', stderr);
+		}
+		fputc('\n', stderr);
+	}
+}
+
+
+/*
+ *	Recursive routine that does the actual checking.
+ */
+void
+check(np)
+struct name *		np;
+{
+	register struct depend *	dp;
+	register struct line *		lp;
+
+
+	if (np->n_flag & N_MARK)
+		fatal("Circular dependency from %s", np->n_name);
+
+	np->n_flag |= N_MARK;
+
+	for (lp = np->n_line; lp; lp = lp->l_next)
+		for (dp = lp->l_dep; dp; dp = dp->d_next)
+			check(dp->d_name);
+
+	np->n_flag &= ~N_MARK;
+}
+
+
+/*
+ *	Look for circular dependancies.
+ *	ie.
+ *		a: b
+ *		b: a
+ *	is a circular dep
+ */
+void
+circh()
+{
+	register struct name *	np;
+
+
+	for (np = namehead.n_next; np; np = np->n_next)
+		check(np);
+}
+
+
+/*
+ *	Check the target .PRECIOUS, and mark its dependentd as precious
+ */
+void
+precious()
+{
+	register struct depend *	dp;
+	register struct line *		lp;
+	register struct name *		np;
+
+
+	if (!((np = newname(".PRECIOUS"))->n_flag & N_TARG))
+		return;
+
+	for (lp = np->n_line; lp; lp = lp->l_next)
+		for (dp = lp->l_dep; dp; dp = dp->d_next)
+			dp->d_name->n_flag |= N_PREC;
+}