glibc-2.17 ARM setjmp compile problem

[Michael Tremer]

Hello list,

I have got a build problem on ARM with the glibc 2.17 release.

The error message is:

[01:23:11,728] /builddir/source/glibc-build/libc.a(setjmp.o): In function `__sigsetjmp':
[01:23:11,729] /builddir/source/glibc-2.17/setjmp/../ports/sysdeps/arm/setjmp.S:90: undefined reference to `_rtld_global_ro'
[01:23:11,730] /builddir/source/glibc-build/libc.a(__longjmp.o): In function `__longjmp':
[01:23:11,730] /builddir/source/glibc-2.17/setjmp/../ports/sysdeps/arm/__longjmp.S:104: undefined reference to `_rtld_global_ro'
[01:23:11,731] collect2: error: ld returned 1 exit status

As far as I can see, 2aa5b9c1 is the change, that causes the trouble.
(http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=2aa5b9c1)

I am running a hardened toolchain, which enables PIC by default, which
may confuse the "#defined PIC" logic.

As I am not very familiar with how _rtld_global_ro gets
referenced here, I hope you guys may have a clue what went wrong when looking
at the error message and code.

Please tell me if you need any further information.
Thank you very much for your attention.

Best,
-Michael