Hello;
GNU RELRO support was committed in r230784 (2012-01-30) but we never
enabled it by default.
There was some discussion about it on
https://reviews.freebsd.org/D3001
By now, all Linux distributions, NetBSD and DragonFly support it and
it is the default for most systems in binutils 2.27.
This doesn't affect performance, I ran it through an exp-run last
year, no other OS has had issues etc ... seems safe and can be
disabled if needed when linking.
I think it's time to enable it be default in our base binutils. If
there are no objections, I will just commit the attached patch over
the weekend.
Regards,
Pedro.
Index: contrib/binutils/ld/emultempl/elf32.em
===================================================================
--- contrib/binutils/ld/emultempl/elf32.em (revision 304807)
+++ contrib/binutils/ld/emultempl/elf32.em (working copy)
@@ -97,6 +97,7 @@
ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
config.dynamic_link = ${DYNAMIC_LINK-TRUE};
config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
+ link_info.relro = TRUE;
}
EOF
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