crosstool-ng: patches/glibc/2.9/290-no-inline-gmon.patch@a70abdbfa342

complibs/cloog: fix linking with libm

In Ubuntu 11.04 and 11.10, the default options for ld have changed.
--no-copy-dt-needed-entries and --as-needed are now enabled by default, which
causes errors like:

[EXTRA] Checking CLooG/ppl
[DEBUG] ==> Executing: 'make' '-j3' '-s' 'check'
[ALL ] Making check in .
[ALL ] config.status: creating include/cloog/cloog-config.h
[ALL ] config.status: include/cloog/cloog-config.h is unchanged
[ALL ] libtool: link: i686-build_pc-linux-gnu-gcc -Wall -fomit-frame-pointer
-pipe -o cloog cloog.o -L/<snip>/build/static/lib ./.libs/libcloog.a -lm
/<snip>/build/static/lib/libppl_c.a /<snip>/build/static/lib/libpwl.a
/<snip>/build/static/lib/libppl.a /<snip>/build/static/lib/libgmpxx.a
/<snip>/build/static/lib/libgmp.a -lstdc++
[ALL ] /usr/bin/ld: /<snip>/build/static/lib/libppl.a(MIP_Problem.o):
undefined reference to symbol 'sqrt@@GLIBC_2.0'
[ALL ] /usr/bin/ld: note: 'sqrt@@GLIBC_2.0' is defined in DSO
/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so so try adding
it to the linker command line
[ALL ] /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so:
could not read symbols: Invalid operation
[ALL ] collect2: ld returned 1 exit status
[ERROR] make[2]: *** [cloog] Error 1
[ERROR] make[1]: *** [check-recursive] Error 1

See:
https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition

This patch fixes these errors by placing '-lm' at the right place on the command
line as libppl requires libm when linking cloog.

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>

     1 Original patch from: gentoo/src/patchsets/glibc/2.9/1080_all_glibc-no-inline-gmon.patch

     3 -= BEGIN original header =-

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

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

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

     8 call_gmon_start.

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

    11 part of inlined call_gmon_start, causing undefined label errors.

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

    14 call_gmon_start with __attribute__ ((noinline)).

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

    18 Kazu Hirata

    20 2006-05-07  Kazu Hirata  &lt;kazu@codesourcery.com&gt;

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

    23 	__attribute__ ((noinline)).

    25 -= END original header =-

    27 diff -durN glibc-2_9.orig/sysdeps/generic/initfini.c glibc-2_9/sysdeps/generic/initfini.c

    28 --- glibc-2_9.orig/sysdeps/generic/initfini.c	2007-06-17 20:02:40.000000000 +0200

    29 +++ glibc-2_9/sysdeps/generic/initfini.c	2009-02-02 22:01:01.000000000 +0100

    30 @@ -70,7 +70,7 @@

    31  /* The beginning of _init:  */

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

    34 -static void

    35 +static void __attribute__ ((noinline))

    36  call_gmon_start(void)

    37  {

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

author	"Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
	Fri Jan 27 13:31:16 2012 +0100 (2012-01-27)
changeset 2854	a70abdbfa342
parent 1201	c9967a6e3b25
permissions	-rw-r--r--