[[!meta copyright="Copyright © 2010, 2011 Free Software Foundation, Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable id="license" text="Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled [[GNU Free Documentation License|/fdl]]."]]"""]] [[!tag open_issue_binutils open_issue_gcc open_issue_glibc]] Needs porting / support in [[/binutils]] and [[/glibc]], and then some target configure magic for [[/GCC]]. has a short summary about how to use it from GCC. * binutils Already passes the ifunc testsuite bits for GAS, but notably for LD (`ld/testsuite/ld-ifunc/ifunc.exp`), too, but that one contains a bunch of stuff explicitly tailored towards Linux. For example, we get *OS/ABI: UNIX - Linux*. (This should be fixed through using [[toolchain/ELFOSABI_GNU]].) Most of the executables that the testsuite generates don't actually execute. (Though, this is partly due to the [[static issue|binutils#static]].) $ tmpdir/local_prog ifunc working correctly $ tmpdir/static_prog Killed $ tmpdir/dynamic_prog tmpdir/dynamic_prog: error while loading shared libraries: ./tmpdir/libshared_ifunc.so: ELF file OS ABI invalid $ tmpdir/static_nonifunc_prog Killed $ tmpdir/test-1 tmpdir/test-1: error while loading shared libraries: tmpdir/libshared_ifunc.so: ELF file OS ABI invalid * [[glibc]] * [[libc_variant_selection]] * [[GCC]] In `gcc/config.gcc`, set `default_gnu_indirect_function=yes` for us, like done for GNU/Linux. See thread starting at [[!message-id "CAFULd4YZsAQ6ckFjXtU5-yyv=3tYQwTJOPhU9zmJxFOrnotj8g@mail.gmail.com"]].