[Bug libc/17836] -pg -pie doesn't work on x86-64

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=17836

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The branch, hjl/memcpy/dpdk/master has been created
        at  1bc1103620e8f6c7e01cb54a8ed04ee1c3eb5a1a (commit)

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1bc1103620e8f6c7e01cb54a8ed04ee1c3eb5a1a

commit 1bc1103620e8f6c7e01cb54a8ed04ee1c3eb5a1a
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Jan 30 11:07:13 2015 -0800

    Add memcpy-rte-ssse3.c

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f63a6815da4c72626b14b456a6902cc8d3671729

commit f63a6815da4c72626b14b456a6902cc8d3671729
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Jan 30 08:44:30 2015 -0800

    Add memcpy-rte-avx.c

    Don't inline rte_memcpy.

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d2ca99bf141c78bd8d9c1f314ce8a1f12c439d4b

commit d2ca99bf141c78bd8d9c1f314ce8a1f12c439d4b
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Jan 30 08:51:45 2015 -0800

    Import rte_memcpy.h

    rte_memcpy.h is a memcpy implementation from DPDK:

    http://dpdk.org/

    optimized for Sandy Bridge and Haswell. See

    http://dpdk.org/ml/archives/dev/2014-November/008158.html

    The original code is at

    https://gist.github.com/lukego/efc82a15bde5ec83cb1b

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=56d25c11b64a97255a115901d136d753c86de24e

commit 56d25c11b64a97255a115901d136d753c86de24e
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Jan 30 06:50:20 2015 -0800

    Use AVX unaligned memcpy only if AVX2 is available

    memcpy with unaligned 256-bit AVX register loads/stores are slow on older
    processorsl like Sandy Bridge.  This patch adds bit_AVX_Fast_Unaligned_Load
    and sets it only when AVX2 is available.

        [BZ #17801]
        * sysdeps/x86_64/multiarch/init-arch.c (__init_cpu_features):
        Set the bit_AVX_Fast_Unaligned_Load bit for AVX2.
        * sysdeps/x86_64/multiarch/init-arch.h (bit_AVX_Fast_Unaligned_Load):
        New.
        (index_AVX_Fast_Unaligned_Load): Likewise.
        (HAS_AVX_FAST_UNALIGNED_LOAD): Likewise.
        * sysdeps/x86_64/multiarch/memcpy.S (__new_memcpy): Check the
        bit_AVX_Fast_Unaligned_Load bit instead of the bit_AVX_Usable bit.
        * sysdeps/x86_64/multiarch/memcpy_chk.S (__memcpy_chk): Likewise.
        * sysdeps/x86_64/multiarch/mempcpy.S (__mempcpy): Likewise.
        * sysdeps/x86_64/multiarch/mempcpy_chk.S (__mempcpy_chk): Likewise.
        * sysdeps/x86_64/multiarch/memmove.c (__libc_memmove): Replace
        HAS_AVX with HAS_AVX_FAST_UNALIGNED_LOAD.
        * sysdeps/x86_64/multiarch/memmove_chk.c (__memmove_chk): Likewise.

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a29c4064115e59bcf8c001c0b3dedfa8d49d3653

commit a29c4064115e59bcf8c001c0b3dedfa8d49d3653
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Wed Jan 14 06:29:04 2015 -0800

    Support compilers defaulting to PIE

    If PIE is the default, we need to build programs as PIE.

        * Makeconfig (+link): Set to $(+link-pie) if default to PIE.
        (+link-tests): Set to $(+link-pie-tests) if default to PIE.
        * config.make.in (build-pie-default): New.
        * configure.ac (libc_cv_pie_default): New.  Set to yes if -fPIE
        is default.  AC_SUBST.
        * configure: Regenerated.

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f0b03bc24b54927677af56778309b6d58aac5eb4

commit f0b03bc24b54927677af56778309b6d58aac5eb4
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Tue Jan 13 06:19:44 2015 -0800

    Compile gcrt1.o with -fPIC

    We compile gcrt1.o with -fPIC to support both "gcc -pg" and "gcc -pie -pg".

        [BZ #17836]
        * csu/Makefile (extra-objs): Add gmon-start.o if not builing
        shared library.  Add gmon-start.os otherwise.
        ($(objpfx)g$(start-installed-name)): Use $(objpfx)S%
        $(objpfx)gmon-start.os if builing shared library.
        ($(objpfx)g$(static-start-installed-name)): Likewise.

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ccf880ba92fe1ef7f29f17062ba6aa2aa7b52f50

commit ccf880ba92fe1ef7f29f17062ba6aa2aa7b52f50
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Dec 19 06:30:31 2014 -0800

    Compile vismain with -fPIC and link with -pie

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