From 1ea5bc753328c9d79e20ec84378c7c76a1b665ea Mon Sep 17 00:00:00 2001
From: Ken Thompson <ken@golang.org>
Date: Mon, 13 Oct 2008 20:14:09 -0700
Subject: [PATCH] stack allocation for the init function

R=r
OCL=17063
CL=17063
---
 src/cmd/gc/dcl.c | 2 +-
 src/cmd/gc/go.h  | 3 ++-
 src/cmd/gc/go.y  | 9 +++++++--
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/cmd/gc/dcl.c b/src/cmd/gc/dcl.c
index 5ba7408444..725bfd2ae0 100644
--- a/src/cmd/gc/dcl.c
+++ b/src/cmd/gc/dcl.c
@@ -987,7 +987,7 @@ fninit(Node *n)
 	// (2)
 
 	maxarg = 0;
-	stksize = 0;
+	stksize = initstksize;
 
 	snprint(namebuf, sizeof(namebuf), "init_%s_function", filename);
 
diff --git a/src/cmd/gc/go.h b/src/cmd/gc/go.h
index 5916b11ebf..fec7ba7dde 100644
--- a/src/cmd/gc/go.h
+++ b/src/cmd/gc/go.h
@@ -451,7 +451,8 @@ EXTERN	Node*	lastconst;
 EXTERN	int32	vargen;
 EXTERN	int32	exportgen;
 EXTERN	int32	maxarg;
-EXTERN	int32	stksize;
+EXTERN	int32	stksize;		// stack size for current frame
+EXTERN	int32	initstksize;		// stack size for init function
 EXTERN	ushort	blockgen;		// max block number
 EXTERN	ushort	block;			// current block number
 
diff --git a/src/cmd/gc/go.y b/src/cmd/gc/go.y
index d08fb515ca..b7eba4a470 100644
--- a/src/cmd/gc/go.y
+++ b/src/cmd/gc/go.y
@@ -178,7 +178,11 @@ hidden_import_list:
  * declarations
  */
 xdcl:
-	common_dcl
+	{ stksize = initstksize; } common_dcl
+	{
+		$$ = $2;
+		initstksize = stksize;
+	}
 |	xfndcl
 	{
 		$$ = N;
@@ -187,10 +191,11 @@ xdcl:
 	{
 		$$ = N;
 	}
-|	LEXPORT { exportadj = 1; } common_dcl
+|	LEXPORT { exportadj = 1; stksize = initstksize; } common_dcl
 	{
 		$$ = $3;
 		exportadj = 0;
+		initstksize = stksize;
 	}
 |	LEXPORT '(' export_list_r ')'
 	{
-- 
2.50.0