Don't split stack in bytes.IndexByte.

From-SVN: r167971

Don't split stack in bytes.IndexByte.
From-SVN: r167971
2bc4b682 · Ian Lance Taylor · b5343013 · 2bc4b682
Commit 2bc4b682 authored Dec 17, 2010 by Ian Lance Taylor
Hide whitespace changes
Inline Side-by-side

Showing with 5 additions and 3 deletions

libgo/go/bytes/indexbyte.c
+5 -3

No files found.
--- 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)