crosstool-ng: patches/glibc/2.5/140-i386-preferred-stack-boundary.patch@f320e22f2cba

arch: add softfp support

Some architectures support a mixed hard/soft floating point, where
the compiler emits hardware floating point instructions, but passes
the operands in core (aka integer) registers.

For example, ARM supports this mode (to come in the next changeset).

Add support for softfp cross compilers to the GCC and GLIBC
configuration. Needed for Ubuntu and other distros that are softfp.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
[yann.morin.1998@anciens.enib.fr: split the original patch]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

     1 (C) 2007 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>

     2 License: LGPL v2.1

     4 Shut off a stupid warning: preffered-stack-boundary must be between 4 ad 12,

     5 and 2 is not.

     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

author	Michael Hope <michael.hope@linaro.org>
	Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2739	f320e22f2cba
parent 744	4bf8448536d5
permissions	-rw-r--r--