patches/glibc/2.6.1/140-i386-preferred-stack-boundary.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Thu Aug 07 13:28:02 2008 +0000 (2008-08-07)
changeset 763 f078be5961ec
parent 744 4bf8448536d5
permissions -rw-r--r--
Fix building core C compiler.
PowerPC unveiled that you can't reliably build a target libgcc until you have C library headers.
In fact you can't build it at all. The fact that it did build for some architectures was purely coincidental, and a mistake.
This fix should still allow to build uClibc-based toolchains (some ARM uClibc toolchains were build-tested).

/trunk/scripts/build/cc_gcc.sh | 100 47 53 0 +++++++++++++++++++++++-------------------------
1 file changed, 47 insertions(+), 53 deletions(-)
     1 (C) 2007 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
     2 License: LGPL v2.1
     3 
     4 Shut off a stupid warning: preffered-stack-boundary must be between 4 ad 12,
     5 and 2 is not.
     6 
     7 diff -dur glibc-2.5.orig/sysdeps/i386/Makefile glibc-2.5/sysdeps/i386/Makefile
     8 --- glibc-2.5.orig/sysdeps/i386/Makefile	2005-03-06 01:18:16.000000000 +0100
     9 +++ glibc-2.5/sysdeps/i386/Makefile	2007-05-27 17:49:37.000000000 +0200
    10 @@ -36,7 +36,7 @@
    11  ifeq ($(subdir),csu)
    12  sysdep-CFLAGS += -mpreferred-stack-boundary=4
    13  else
    14 -sysdep-CFLAGS += -mpreferred-stack-boundary=2
    15 +sysdep-CFLAGS += -mpreferred-stack-boundary=4
    16  # Likewise, any function which calls user callbacks
    17  uses-callbacks += -mpreferred-stack-boundary=4
    18  # Likewise, any stack alignment tests