From 2bc4b68293dad5d923b6800b79d45103afcc63c6 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Fri, 17 Dec 2010 06:36:10 +0000
Subject: [PATCH] Don't split stack in bytes.IndexByte.
From-SVN: r167971
---
libgo/go/bytes/indexbyte.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/libgo/go/bytes/indexbyte.c b/libgo/go/bytes/indexbyte.c
index 1e0fef91f309..a0a963e93f66 100644
--- a/libgo/go/bytes/indexbyte.c
+++ b/libgo/go/bytes/indexbyte.c
@@ -8,11 +8,13 @@
#include "array.h"
-/* This is in C so that the compiler can optimize it
- appropriately. */
+/* This is in C so that the compiler can optimize it appropriately.
+ We deliberately don't split the stack in case it does call the
+ library function, which shouldn't need much stack space. */
int IndexByte (struct __go_open_array, char)
- asm ("libgo_bytes.bytes.IndexByte");
+ asm ("libgo_bytes.bytes.IndexByte")
+ __attribute__ ((no_split_stack));
int
IndexByte (struct __go_open_array s, char b)
--
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