[Bug libc/21744] Tests failing on --enable-tunables --enable-stack-protector=all

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https://sourceware.org/bugzilla/show_bug.cgi?id=21744

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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=95a73392580761abc62fc9b1386d232cd55878e9

commit 95a73392580761abc62fc9b1386d232cd55878e9
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Mon Jul 17 18:11:12 2017 -0300

    tunables: Use direct syscall for access (BZ#21744)

    The function maybe_enable_malloc_check, which is called by
    __tunables_init, calls __access_noerrno.  It isn't problem when
    symbol is is in ld.so, which has a special version of __access_noerrno
    without stack protector.  But when glibc is built with stack protector,
    maybe_enable_malloc_check in libc.a can't call the regular version of
    __access_noerrno with stack protector.

    This patch changes how Linux defines the __access_noerrno to be an
    inline call instead and thus preventing defining different build
    rules for ld/static and shared.

        H.J. Lu  <hongjiu.lu@intel.com>
        Adhemerval Zanella  <adhemerval.zanella@linaro.org>

        [BZ #21744]
        * elf/dl-tunables.c: Include not-errno.h header.
        * include/unistd.h (__access_noerrno): Remove definition.
        * sysdeps/unix/sysv/linux/access.c (__access_noerrno): Likewise.
        * sysdeps/generic/not-errno.h: New file.
        * sysdeps/unix/sysv/linux/not-errno.h: Likewise.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                                          |   10 ++++++
 elf/dl-tunables.c                                  |    2 +
 include/unistd.h                                   |    7 ----
 .../float1282mpn.c => generic/not-errno.h}         |    5 +--
 sysdeps/unix/sysv/linux/access.c                   |   15 ---------
 sysdeps/unix/sysv/linux/{access.c => not-errno.h}  |   32 ++++++-------------
 6 files changed, 24 insertions(+), 47 deletions(-)
 copy sysdeps/{ieee754/float128/float1282mpn.c => generic/not-errno.h} (86%)
 copy sysdeps/unix/sysv/linux/{access.c => not-errno.h} (57%)

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