Date: Sun, 20 Oct 2013 22:49:59 +0600 From: agent <agentprog@...il.com> To: musl@...ts.openwall.com Subject: Re: ELLCC has self hosted. I understand my question is rather stupid, but what is the most preferable way to use ecc as a compiler to build itself? Even if I set cc and cxx variables in the root configure script, it still builds everything with gcc. Is setting CC and CXX environment variables sufficient? Dmitry 19.10.2013 05:02, Richard Pennington ?????: > The clang/LLVM based ELLCC project (http://ellcc.org), after having > reached a huge milestone (http://ellcc.org/blog/?p=231) has now > successfully compiled itself. > > The steps were: > 1. Use gcc to build the compiler with Linux standard libraries. > 2. Use ecc to build itself with libc++, libc++ABI, libunwind, musl, > and compiler-rt > 3. Use the newly built compiler to build itself again. > > One interesting side note: The compiler was 12MB smaller after it > built itself. > > ct-fw-88 ellcc 622 % size */Release+Asserts/bin/ecc > > text data bss dec hex filename > > 52415858 2152024 84768 54652650 341eeea > llvm-build/Release+Asserts/bin/ecc > > 40222706 2117136 135416 42475258 2881efa > llvm-build-self/Release+Asserts/bin/ecc > > Even more interesting, it was compiled statically. No dynamic > libraries needed: > > ct-fw-88 ellcc 623 % ldd */Release+Asserts/bin/ecc > > llvm-build/Release+Asserts/bin/ecc: > > linux-vdso.so.1 => (0x00007fff2ffff000) > > libz.so.1 => /lib64/libz.so.1 (0x00007facd87e1000) > > libpthread.so.0 => /lib64/libpthread.so.0 (0x00007facd85c4000) > > libncurses.so.5 => /lib64/libncurses.so.5 (0x00007facd837c000) > > librt.so.1 => /lib64/librt.so.1 (0x00007facd8173000) > > libdl.so.2 => /lib64/libdl.so.2 (0x00007facd7f6f000) > > libstdc++.so.6 => /home/de023789/gnulocal/lib64/libstdc++.so.6 > (0x00007facd7c6e000) > > libm.so.6 => /lib64/libm.so.6 (0x00007facd7a18000) > > libgcc_s.so.1 => /home/de023789/gnulocal/lib64/libgcc_s.so.1 > (0x00007facd7803000) > > libc.so.6 => /lib64/libc.so.6 (0x00007facd74a5000) > > /lib64/ld-linux-x86-64.so.2 (0x00007facd89f7000) > > llvm-build-self/Release+Asserts/bin/ecc: > > not a dynamic executable > > ct-fw-88 ellcc 624 % > > That is very cool. > > -Rich > Content of type "text/html" skipped
Powered by blists - more mailing lists
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.