Bug 415185 – sys-devel/gcc-4.5 and later: broken pie linking on FreeBSD

• Product: Gentoo Linux
• Status: RESOLVED FIXED

[Description Alexis Ballier 2012-05-08 22:44:52 UTC]

Not all of our patch to previous releases has been merged in gcc 4.5 but the whole patch was dropped.

One part of it was making it use the right crt*.o files for pie executables. While, on x86, it doesnt cause errors but only renders pie almost useless, on amd64 this becomes an error and causes me problems.

See:
http://gcc.gnu.org/ml/gcc-patches/2012-05/msg00555.html

could you please add it to our patchset for current releases ? thanks!

[Comment 1 Alexis Ballier 2012-05-08 22:47:35 UTC]

on amd64 (out of my memory) errors are: gcc -pie -fPIC -fPIE foo.c
Error: cannot make relocation against for /usr/.../crt1.o ... recompile -fPIC

with the patch it works fine.

[Comment 2 SpanKY 2012-05-10 03:10:02 UTC]

what versions of gcc exactly do you want this merged into ?

[Comment 3 Alexis Ballier 2012-05-10 15:20:43 UTC]

(In reply to comment #2)
> what versions of gcc exactly do you want this merged into ?

starting from latest ~arch up to current I'd say, today that'll mean 4.5.3, 4.6.3 (and 4.7 at some point). if 4.6 goes to ~arch, i dont care about 4.5; what is important to me is that i get a working compiler by 'emerge -1 gcc' so that i can continue keywording packages that rely on pie (eg cups).

[Comment 4 SpanKY 2012-05-11 08:47:47 UTC]

i've queued it in all 4.5.x and 4.6.x dirs, and released it in 4.5.3 and 4.6.3

http://sources.gentoo.org/gentoo/src/patchsets/gcc/4.6.3/gentoo/92_all_freebsd-pie.patch?rev=1.1

[Comment 5 SpanKY 2012-05-11 08:49:38 UTC]

should be all set now in the tree; thanks for the report!

Commit message: Push out FreeBSD PIE fix
http://sources.gentoo.org/sys-devel/gcc/gcc-4.5.3-r2.ebuild?r1=1.13&r2=1.14
http://sources.gentoo.org/sys-devel/gcc/gcc-4.6.3.ebuild?r1=1.2&r2=1.3