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Date: Tue, 24 May 2011 17:40:00 -0000
Message-ID: <BANLkTimCbqEEZoUqVuTDp7iWav0GGiat9Q@mail.gmail.com>
Subject: Re: [build] Fix Solaris 2/x86 GD/LD TLS code sequences with Sun ld
From: Uros Bizjak <ubizjak@gmail.com>
To: Rainer Orth <ro@cebitec.uni-bielefeld.de>
Cc: gcc-patches@gcc.gnu.org
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On Tue, May 24, 2011 at 5:34 PM, Rainer Orth
<ro@cebitec.uni-bielefeld.de> wrote:
> Uros Bizjak <ubizjak@gmail.com> writes:
>
>>> I think I tried something along these lines, but failed with duplicate
>>> @plt@plt for PIC code.
>>
>> Hm, there is no %P1 present, so I don't think this should be an issue.
>
> Unfortunately, I do get assembler errors (Sun as at the moment) with
> your updated patch:
>
> libtool: compile: =A0/var/gcc/gcc-4.7.0-20110523/10-gcc/./gcc/xgcc -share=
d-libgcc -B/var/gcc/gcc-4.7.0-20110523/10-gcc/./gcc -nostdinc++ -L/var/gcc/=
gcc-4.7.0-20110523/10-gcc/i386-pc-solaris2.10/amd64/libstdc++-v3/src -L/var=
/gcc/gcc-4.7.0-20110523/10-gcc/i386-pc-solaris2.10/amd64/libstdc++-v3/src/.=
libs -B/usr/local/i386-pc-solaris2.10/bin/ -B/usr/local/i386-pc-solaris2.10=
/lib/ -isystem /usr/local/i386-pc-solaris2.10/include -isystem /usr/local/i=
386-pc-solaris2.10/sys-include -m64 -I/vol/gcc/src/hg/trunk/solaris/libstdc=
++-v3/../gcc -I/var/gcc/gcc-4.7.0-20110523/10-gcc/i386-pc-solaris2.10/amd64=
/libstdc++-v3/include/i386-pc-solaris2.10 -I/var/gcc/gcc-4.7.0-20110523/10-=
gcc/i386-pc-solaris2.10/amd64/libstdc++-v3/include -I/vol/gcc/src/hg/trunk/=
solaris/libstdc++-v3/libsupc++ -fno-implicit-templates -Wall -Wextra -Wwrit=
e-strings -Wcast-qual -fdiagnostics-show-location=3Donce -ffunction-section=
s -fdata-sections -g -O2 -m64 -c /vol/gcc/src/hg/trunk/solaris/libstdc++-v3=
/libsupc++/fundamental_type_info.cc =A0-fPIC -DPIC -o funinfo.o
> damental_type_info.o
> Assembler: eh_globals.cc
> =A0 =A0 =A0 =A0"/var/tmp//ccJ1MA8h.s", line 17 : Syntax error
> =A0 =A0 =A0 =A0Near line: " =A0 =A0call =A0 =A0__tls_get_addr(%rip)@plt"
> =A0 =A0 =A0 =A0"/var/tmp//ccJ1MA8h.s", line 38 : Syntax error
> =A0 =A0 =A0 =A0Near line: " =A0 =A0call =A0 =A0__tls_get_addr(%rip)@plt"
> make[9]: *** [eh_globals.lo] Error 1

Bah. %P has a special handling that removes (%rip). Are you sure Sun
assembler requests @plt in PIC and non-PIC cases? Can we solve this
with TARGET_SUN_TLS somehow?

Thanks,
Uros.