Date: Tue, 9 Jun 2015 16:25:50 -0400 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: Re: C++ questions On Tue, Jun 09, 2015 at 04:17:11PM -0400, John Mudd wrote: > On Fri, Jun 5, 2015 at 5:56 PM, Szabolcs Nagy <nsz@...t70.net> wrote: > > > * John Mudd <johnbmudd@...il.com> [2015-06-05 17:34:52 -0400]: > > > Error loading shared library ld-linux.so.2: No such file or directory > > > (needed by /usr/lib/i386-linux-gnu/libstdc++.so.6) > > > > > > > create an empty ld-linux.so.2 > > > > gcc -o ld-linux.so.2 -xc -shared - </dev/null > > > > (nowadays toolchains sometimes add the dynamic linker to > > elf DT_NEEDED, i dont know why, it's not really needed) > > > > > I looked at the notes about C++ in the musl faqs. For that I decided it > > > might help if I built gcc in musl. Then everything will be musl-ized? I > > > built gmp, mpfr and mpc. Started building gcc but got the following > > error. > > > > > > /home/mudd/musl/gcc-4.9.2.obj/gcc/../../gcc-4.9.2/gcc/plugin.c:579: > > > undefined reference to `dlopen' > > > > > > > you have to patch gcc and use certain options to make it work > > > > musl-cross build scripts take care of if > > (there are prebuilt toolchains too) > > > > > Before I go further, any opinions if I'm even headed in the right > > direction? > > > > you may get away without building > > Thanks again. Adding the empty ld-linux.so.2 helped. I also had to > add libgcc_s.so.1 and the following _chk stubs. > > http://pastebin.com/TeieBKCE New ABI compat coming up soon (hopefully in the next release) will eliminate the need to add these yourself -- and the ones we add will actually perform the correct overflow/etc. checks. Rich
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