Emilio Pozuelo Monfort schrieb:
> reassign 535237 gcc-snapshot
> retitle 535237 gcc: pass --build-id to the linker whenever possible
> notfound 535237 2.19.1-1
> thanks
>
> Let's reassign this to gcc to pass -Wl,--build-id when the linker supports it.
> We will see if we can/need to change ld too.
>
> Emilio Pozuelo Monfort wrote:
>> By the way, gcc trunk (and gcc-snapshot in Debian) have now that option to
>> pass
>> -Wl,--build-id to the linker by default if that's supported, see [1]. I
>> built it
>> with that option this weekend, will test that everything keeps working fine
>> and
>> attach a patch here.
>
> OK, it seems to work fine:
>
> emi...@saturno:~/tmp$ echo "main(){}" > foo.c
> emi...@saturno:~/tmp$ /usr/lib/gcc-snapshot/bin/gcc -o foo foo.c
> emi...@saturno:~/tmp$ readelf -n foo
>
> Notes at offset 0x00000128 with length 0x00000020:
> Owner Data size Description
> GNU 0x00000010 NT_GNU_ABI_TAG (ABI version tag)
>
> Notes at offset 0x00000148 with length 0x00000024:
> Owner Data size Description
> GNU 0x00000014 NT_GNU_BUILD_ID (unique build ID bitstring)
> emi...@saturno:~/tmp$ /usr/lib/gcc-snapshot/bin/gcc -o foo foo.c
> -Wl,--build-id=none
> emi...@saturno:~/tmp$ readelf -n foo
>
> Notes at offset 0x00000128 with length 0x00000020:
> Owner Data size Description
> GNU 0x00000010 NT_GNU_ABI_TAG (ABI version tag)
> emi...@saturno:~/tmp$
>
> The patch for gcc-snapshot is trivial:
>
> --- gcc-snapshot-20090620/debian/rules2
> +++ gcc-snapshot-20090620/debian/rules2
> @@ -119,6 +119,7 @@
> --prefix=/$(PF) \
> --enable-shared \
> --enable-multiarch \
> + --enable-linker-build-id \
> --with-system-zlib \
>
> ifneq ($(PKGSOURCE),gcc-snapshot)
>
>
>
> I'll look into gcc-4.4 and gcc-4.3 next.
thanks.
> By the way, are there plans to switch
> to gcc-4.4 by default? If so, are there any blockers?
yes, search for gfortran on debian-devel and the license thread on debian-gcc.
Matthias
--
To UNSUBSCRIBE, email to debian-gcc-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
