crosstool-ng: patches/glibc/ports-2.10.1/230-no-inline-gmon.patch@333d3e40cbd1

scripts: refine static linking check to better guide the user

The current mechanism to check if static linking is possible, and the mesage
displayed on failure, can be puzzling to the unsuspecting user.

Also, the current implementation is not using the existing infrastructure,
and is thus difficult to enhance with new tests.

So, switch to using the standard CT_DoExecLog infra, and use four tests to
check for the host compiler:
- check we can run it
- check it can build a trivial program
- check it can statically link that program
- check if it statically link with libstdc++

That should cover most of the problems. Hopefully.

(At the same time, fix a typo in a comment)

Signed-off-by: Daniel Price <daniel.price@gmail.com>
[yann.morin.1998@free.fr: split original patch for self-contained changes]
[yann.morin.1998@free.fr: use steps to better see gcc's output]
[yann.morin.1998@free.fr: commit log]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Message-Id: <163f86b5216fc08c672a.1353459722@nipigon.dssd.com>
Patchwork-Id: 200536

     1 http://bugs.gentoo.org/196245

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

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

     5 call_gmon_start.

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

     8 part of inlined call_gmon_start, causing undefined label errors.

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

    11 call_gmon_start with __attribute__ ((noinline)).

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

    15 Kazu Hirata

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

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

    20 	__attribute__ ((noinline)).

    22 Index: sysdeps/generic/initfini.c

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

    25 diff -durN glibc-2.10.1.orig/sysdeps/generic/initfini.c glibc-2.10.1/sysdeps/generic/initfini.c

    26 --- glibc-2.10.1.orig/sysdeps/generic/initfini.c	2007-06-17 20:02:40.000000000 +0200

    27 +++ glibc-2.10.1/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*/");

    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__);*/

author	Daniel Price <daniel.price@gmail.com>
	Tue Nov 20 16:59:17 2012 -0800 (2012-11-20)
changeset 3126	333d3e40cbd1
permissions	-rw-r--r--