Date: Sat, 12 Jul 2014 22:39:08 +0200 From: Andreas Tobler <andreast-list@fgznet.ch> To: mexas@bris.ac.uk, freebsd-arm@freebsd.org, george+freebsd@m5p.com Subject: Re: [Bug 175605] devel/binutils: please fix build binutils-2.23.1 in raspberry pi Message-ID: <53C19CEC.7080101@fgznet.ch> In-Reply-To: <201407122028.s6CKSch3098048@mech-cluster241.men.bris.ac.uk> References: <201407122028.s6CKSch3098048@mech-cluster241.men.bris.ac.uk>
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On 12.07.14 22:28, Anton Shterenlikht wrote:
>>From andreast-list@fgznet.ch Sat Jul 12 21:07:05 2014
>> On 12.07.14 21:43, Anton Shterenlikht wrote:
>>>>> --- Comment #6 from mexas@bris.ac.uk ---
>>>>> Forgot to say that this was with Andreas Tobler's patchset.
>>>>> Also, it segfaults with the OS default ld too:
>>>>>
>>>>> $ cat z.c
>>>>> #include <stdio.h>
>>>>> int main(int argc, char **argv)
>>>>> {
>>>>> printf("mumu\n");
>>>>> return 0;
>>>>> }
>>>>> $ cc -c z.c -Wall
>>>>> $ /usr/local/bin/ld -o z /usr/lib/crt1.o /usr/lib/crti.o z.o -lc
>>>>> $ ldd z
>>>>> z:
>>>>> libc.so.7 => /lib/libc.so.7 (0x2003c000)
>>>>> $ file z
>>>>> z: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses
>>>>> shared libs), for FreBSD 10.0 (1000710), not stripped
>>>>> $ ./z
>>>>> Segmentation fault (core dumped)
>>>>> $ /usr/bin/ld -o z /usr/lib/crt1.o /usr/lib/crti.o z.o -lc
>>>>> $ ldd z
>>>>> z:
>>>>> libc.so.7 => /lib/libc.so.7 (0x2003c000)
>>>>> $ file z
>>>>> z: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses
>>>>> shared libs), for FreBSD 10.0 (1000710), not stripped
>>>>> $ ./z
>>>>> Segmentation fault (core dumped)
>>>>> $
>>>>>
>>>> Why are you using this strange invocation of the linker? If I run
>>>> "cc -v -o z z.c", here is how it invokes ld:
>>>>
>>>> "/usr/bin/ld" --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1
>>>> --hash-style=both --enable-new-dtags -o z /usr/lib/crt1.o
>>>> /usr/lib/crti.o /usr/lib/crtbegin.o -L/usr/lib /tmp/z-9530c3.o -lgcc
>>>> --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s
>>>> --no-as-needed /usr/lib/crtend.o /usr/lib/crtn.o
>>>>
>>>> The resulting program runs without difficulty. -- George
>>>
>>> well, I copied my invocation from:
>>> http://people.freebsd.org/~rene/patches/binutils-rpi-bug.txt
>>>
>>> but you are right. I have now did just the same
>>> using /usr/local/bin/ld, and the executable worked.
>>>
>>> So probably Andreas Tobler's patchset should
>>> be committed?
>>>
>>> I'm building lang/gcc right now, will see how it goes.
>>
>> You can save the time for gcc. Nothing else than the system gcc works.
>
> Sorry, I still don't get you.
> What is the "system gcc"?
Hm, we have clang or gcc for CC. When I talk about 'system gcc' I mean:
[andreast@wandquad] /build/gcc/objdir_armv6/> gcc -v
Using built-in specs.
Target: armv6-undermydesk-freebsd
Configured with: FreeBSD/armv6 system compiler
Thread model: posix
gcc version 4.2.1 20070831 patched [FreeBSD]
Currently I have no clang installed since it does not build/bootstrap
gcc-4.10.
This is my game.
> I thought the system C compiler is clang, in 10-stable and above.
It can either be gcc or clang.
> I'm not intersted in gcc itself.
:) nobody seems and nobody is happy with a half backed clang ;)
> I just want to build xorg-server.
No experience here, sorry.
Andreas
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