Re: RFC: remove the "tile" architecture from glibc

[Adhemerval Zanella <adhemerval dot zanella at linaro dot org>]

On 31/01/2018 16:15, John Paul Adrian Glaubitz wrote:
> On 01/31/2018 06:37 PM, Joseph Myers wrote:
>> The 2.27 release is due out tomorrow.  So far, no test results for tile 
>> have been posted at <https://sourceware.org/glibc/wiki/Release/2.27> - and 
>> the same applies to sh and ia64, which also had some interest in them 
>> expressed in this thread.  Are you, or other people you're working with 
>> who have interest in those architectures, working on having results for 
>> those architectures for 2.27 for the wiki page (regenerating libm test 
>> ulps first and getting that regeneration checked in if there would 
>> otherwise be tests failing only because of lack of updated ulps)?
> 
> I don't have access to tile hardware at the moment, but sh4 and ia64.
> 
> Adhemerval has access to the sparc64, sh4 and ia64 boxes as well and
> he said he would be working on the ia64 stuff.
> 
> If he doesn't run the testsuite on these architectures, I can do that
> later next week.
> 
> Adrian
> 

Hi Adrian,

Trying to build/run glibc testsuite against sh4 own toolchain I am facing
an build issue for some tests:

---
gcc -nostdlib -nostartfiles -o /home/azanella/glibc/glibc-git-build/assert/tst-assert-c++    -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both /home/azanella/glibc/glibc-git-build/csu/crt1.o /home/azanella/glibc/glibc-git-build/csu/crti.o `gcc  --print-file-name=crtbegin.o` /home/azanella/glibc/glibc-git-build/assert/tst-assert-c++.o /home/azanella/glibc/glibc-git-build/support/libsupport_nonshared.a -lstdc++ -Wl,-dynamic-linker=/lib/ld-linux.so.2 -Wl,-rpath-link=/home/azanella/glibc/glibc-git-build:/home/azanella/glibc/glibc-git-build/math:/home/azanella/glibc/glibc-git-build/elf:/home/azanella/glibc/glibc-git-build/dlfcn:/home/azanella/glibc/glibc-git-build/nss:/home/azanella/glibc/glibc-git-build/nis:/home/azanella/glibc/glibc-git-build/rt:/home/azanella/glibc/glibc-git-build/resolv:/home/azanella/glibc/glibc-git-build/crypt:/home/azanella/glibc/glibc-git-build/mathvec:/home/azanella/glibc/glibc-git-build/support:/home/azanella/glibc/glibc-git-build/nptl /home/azanella/glibc/glibc-git-build/libc.so.6 /home/azanella/glibc/glibc-git-build/libc_nonshared.a -Wl,--as-needed /home/azanella/glibc/glibc-git-build/elf/ld.so -Wl,--no-as-needed -lgcc -Wl,--as-needed -lgcc_s  -Wl,--no-as-needed `gcc  --print-file-name=crtend.o` /home/azanella/glibc/glibc-git-build/csu/crtn.o
/usr/lib/gcc/sh4-linux-gnu/7/libgcc_s.so.1: undefined reference to `__fpscr_values@GLIBC_2.2'
collect2: error: ld returned 1 exit status
---

I did not dig into this, but some google shows it has been an issue before [1].
The issue is using build-many-glibcs.py cross toolchain I did not see any
issues building glibc testsuite.

The major gcc configuration differences I see is system one adds a 
'--with-cpu=sh4 --with-multilib-list=m4,m4-nofpu'. Any idea of what might
be happening.

[1] https://sourceware.org/ml/libc-alpha/2009-01/msg00034.html