The patch below makes the declaration of "struct ia64_fpreg" portable
accross compilers. Bjorn, I think it would be good to make the same
change in 2.4.xx.
Even though it's a change to a kernel header file, this patch is
intended to fix a bug in glibc: without this patch, using a compiler
other than gcc will lead to a sigcontext/ucontext type which isn't
properly aligned.
--david
# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
# ChangeSet 1.1128 -> 1.1129
# include/asm-ia64/fpu.h 1.2 -> 1.3
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 03/03/27 davidm@wailua.hpl.hp.com 1.1129
# ia64: Change struct ia64_fpreg so it will get 16-byte alignment with all
# ia64 compilers, not just GCC.
# --------------------------------------------
#
diff -Nru a/include/asm-ia64/fpu.h b/include/asm-ia64/fpu.h
--- a/include/asm-ia64/fpu.h Thu Mar 27 17:05:38 2003
+++ b/include/asm-ia64/fpu.h Thu Mar 27 17:05:38 2003
@@ -2,7 +2,7 @@
#define _ASM_IA64_FPU_H
/*
- * Copyright (C) 1998, 1999, 2002 Hewlett-Packard Co
+ * Copyright (C) 1998, 1999, 2002, 2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
@@ -57,8 +57,9 @@
struct ia64_fpreg {
union {
unsigned long bits[2];
+ long double __dummy; /* force 16-byte alignment */
} u;
-} __attribute__ ((aligned (16)));
+};
# endif /* __ASSEMBLY__ */