[fedora-arm] F13 glibc patches for ARM?

[Gordan Bobic]

 It would appear that since I replaced libgcc_s.so with a linker script, 
 there are a couple of changes in the build of glibc:

 * -fno-stack-protector is no longer required in BuildFlags for the 
 build to succeed
 * The following process goes runnaway, and it remains even after 
 rpmbuild completes successfully, and uses any and all available CPU 
 time:

 /root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl/elf/ld-linux.so.3 
 --library-path 
 /root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl:/root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl/math:/root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl/elf:/root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl/dlfcn:/root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl/nss:/root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl/nis:/root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl/rt:/root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl/resolv:/root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl/crypt:/root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl/nptl 
 /root/rpmbuild/BUILD/glibc-2.12-2-gc4ccff1/build-armv5tel-linuxnptl/nptl/tst-mutexpi9

 I'm pretty sure that isn't right. Anyone care to hazard a guess as to 
 why this might be happening?

 I should stress that glibc build now succeeds and source and binary 
 RPMs are generated as expected. The only things I changed in glibc are:
 - Apply updated tzdata patch (#708452)
 - Spec patch to fix undefined reference to __stack_chk_guard (#726495)

 and optionally:
 - Removed -fno-stack-protector from BuildFlags as it no longer needed

 I just thought this might be useful to someone even though F13 is now 
 deprecated. I haven't checked whether/how newer versions are affected.

 Gordan

 On Mon, 15 Aug 2011 18:07:21 +0100, Andrew Haley <aph at redhat.com> 
 wrote:
> On 08/15/2011 04:08 PM, Gordan Bobic wrote:
>>  On Mon, 15 Aug 2011 14:52:50 +0100, Andrew Haley <aph at redhat.com>
>>  wrote:
>>> On 08/15/2011 02:49 PM, Gordan Bobic wrote:
>>>>  On Mon, 15 Aug 2011 11:59:56 +0100, Andrew Haley <aph at redhat.com>
>>>>  wrote:
>>>>
>>>>  Is that the bug that you are saying ISN'T related to the
>>>> libgcc_s.so
>>>>  symlink vs. text file issue?
>>>
>>> Yes.  Probably.
>>>
>>> By the way, you don't have to build gcc to be sure.  Extract
>>> unwind-arm.o
>>> from libgcc_eh.a, run nm on it, and see if there is a reference to
>>> __stack_chk_guard
>>
>>  D'oh! I clearly haven't had enaough coffee today.
>>
>>  It seems to be there in F13's GCC:
>>  # ar x libgcc_eh.a
>>  # nm unwind-arm.o | grep __stack_chk_guard
>>           U __stack_chk_guard
>
> Yes, I see it too, but it's gone in F15.
>
> I'll investigate and let you know what I find.
>
> Andrew.