From a66d62a16800f6628d1372ee87aa67eb1766ec30 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Wed, 12 Aug 2009 13:18:19 -0700
Subject: whole-package compilation

R=ken
OCL=33063
CL=33095
---
 src/cmd/gc/sinit.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 73 insertions(+), 1 deletion(-)

(limited to 'src/cmd/gc/sinit.c')

diff --git a/src/cmd/gc/sinit.c b/src/cmd/gc/sinit.c
index 83db9bff1..4b46f7c7c 100644
--- a/src/cmd/gc/sinit.c
+++ b/src/cmd/gc/sinit.c
@@ -457,13 +457,85 @@ return;
 
 }
 
+static void
+init1(Node *n, NodeList **out)
+{
+	NodeList *l;
+
+	if(n == N)
+		return;
+	init1(n->left, out);
+	init1(n->right, out);
+	for(l=n->list; l; l=l->next)
+		init1(l->n, out);
+
+	if(n->op != ONAME)
+		return;
+	switch(n->class) {
+	case PEXTERN:
+	case PFUNC:
+		break;
+	default:
+		return;
+	}
+
+	if(n->initorder == 1)
+		return;
+	if(n->initorder == 2)
+		fatal("init loop");
+
+	// make sure that everything n depends on is initialized.
+	// n->defn is an assignment to n
+	n->initorder = 2;
+	if(n->defn != N) {
+		switch(n->defn->op) {
+		case ODCLFUNC:
+			for(l=n->defn->nbody; l; l=l->next)
+				init1(l->n, out);
+			break;
+		case OAS:
+			if(n->defn->left != n) {
+		default:
+				dump("defn", n->defn);
+				fatal("bad defn");
+			}
+			init1(n->defn->right, out);
+			if(debug['j'])
+				print("%S\n", n->sym);
+			*out = list(*out, n->defn);
+			break;
+		}
+	}
+	n->initorder = 1;
+	return;
+}
+
+static void
+initreorder(NodeList *l, NodeList **out)
+{
+	Node *n;
+
+	for(; l; l=l->next) {
+		n = l->n;
+		switch(n->op) {
+		case ODCLFUNC:
+		case ODCLCONST:
+		case ODCLTYPE:
+			continue;
+		}
+		initreorder(n->ninit, out);
+		n->ninit = nil;
+		init1(n, out);
+	}
+}
+
 NodeList*
 initfix(NodeList *l)
 {
 	Node *r;
 
 	xxx.list = nil;
-	initlin(l);
+	initreorder(l, &xxx.list);
 
 if(0)
 return xxx.list;
-- 
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