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patches/glibc/ports-2.12.1/230-no-inline-gmon.patch
author Michael Hope <michael.hope@linaro.org>
Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2739 f320e22f2cba
permissions -rw-r--r--
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 http://bugs.gentoo.org/196245

     2 http://sourceware.org/ml/libc-alpha/2006-05/msg00017.html

     3 

     4 Attached is a patch to add __attribute__ ((noinline)) to

     5 call_gmon_start.

     6 

     7 Without this patch, the sec script that processed initfini.s removes a

     8 part of inlined call_gmon_start, causing undefined label errors.

     9 

    10 This patch solves the problem by forcing gcc not to inline

    11 call_gmon_start with __attribute__ ((noinline)).

    12 

    13 Tested by building for arm-none-lixux-gnueabi.  OK to apply?

    14 

    15 Kazu Hirata

    16 

    17 2006-05-07  Kazu Hirata  &lt;kazu@codesourcery.com&gt;

    18 

    19 	* sysdeps/generic/initfini.c (call_gmon_start): Add

    20 	__attribute__ ((noinline)).

    21 

    22 Index: sysdeps/generic/initfini.c

    23 ===================================================================

    24 

    25 diff -durN glibc-2.12.1.orig/sysdeps/generic/initfini.c glibc-2.12.1/sysdeps/generic/initfini.c

    26 --- glibc-2.12.1.orig/sysdeps/generic/initfini.c	2007-06-17 20:02:40.000000000 +0200

    27 +++ glibc-2.12.1/sysdeps/generic/initfini.c	2009-11-13 00:50:09.000000000 +0100

    28 @@ -70,7 +70,7 @@

    29  /* The beginning of _init:  */

    30  asm ("\n/*@_init_PROLOG_BEGINS*/");

    31  

    32 -static void

    33 +static void __attribute__ ((noinline))

    34  call_gmon_start(void)

    35  {

    36    extern void __gmon_start__ (void) __attribute__ ((weak)); /*weak_extern (__gmon_start__);*/
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