patches/glibc/2.7/140-i386-preferred-stack-boundary.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jan 03 17:36:54 2010 +0100 (2010-01-03)
changeset 1681 cc8ac5ca65aa
parent 744 4bf8448536d5
permissions -rw-r--r--
samples: add a new samples for the TI DaVinci processors.

Dragan Marinkovic <marinkovic.dragan@gmail.com> wrote:
I finally had the time (and board) to spend some time with
crosstool-NG version 1.5.2 and TMS320DM6446 (DaVinci Digital Media
System-on-Chip,
http://focus.ti.com/docs/prod/folders/print/tms320dm6446.html).

I was able to successfully build and run v2.6.27-davinci1 kernel
(Kevin Hilman's branch) with busybox based initramfs on it. I don't
believe that any later kernel would represent any challenge (it just
happens that I'm currently working with this version). What a thrill
:).

crosstool-NG/toolchain config is attached. It may be useful to someone
using crosstool-NG ...
     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