[Bug dynamic-link/29835] Error compiling glibc multilib with --enable-static-pie option turned on

["i at maskray dot me" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=29835

Fangrui Song <i at maskray dot me> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |i at maskray dot me

--- Comment #3 from Fangrui Song <i at maskray dot me> ---
How do you configure your build?


mkdir -p out/arm && cd out/arm
../../configure --prefix=/tmp/glibc/arm --host=arm-linux-gnueabihf
--enable-static-pie --enable-hardcoded-path-in-tests
make -j 60  # good

% grep pie_supported config.log
libc_cv_pie_supported=yes
libc_cv_static_pie_supported=no

Note that sysdeps/arm/configure.ac doesn't say `AC_DEFINE(SUPPORT_STATIC_PIE)`,
so I think static-pie for sysdeps/arm is unsupported.


% cat a.c
const char *foo (void)
{
  extern const char _DYNAMIC[] __attribute__((visibility("hidden")));
  return _DYNAMIC;
}
% arm-linux-gnueabihf-gcc -fpic  -nostdlib -static-pie a.c
# good. Both -shared and -pie have .dynamic and define _DYNAMIC

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