On Mon, Oct 24, 2011 at 2:09 PM, Zhenqiang Chen <zhenqiang.c...@linaro.org> wrote: > Summary: > * Exercise crosstool-ng and summarize the gaps. > > Details: > * Exercise crosstool-ng > (1) Sync with lp:~linaro-toolchain-dev/crosstool-ng/linaro. > (2) Try to config linux-host-baremental-target an > mingw32-host-baremental-target. > (3) Try to build the toolchain for both embedded toolchain and > linaro-gcc-4.6-2011.10 with the config. > . C compiler for linux and mingw32 hosts and c++ compiler for > linux host can be built without any change. > . C++ compiler for mingw32 host can be built after PCH is disabled.
Yip, I saw that too. > . GDB-cross build fail due to dependence packages. > * Gaps in crosstool-ng > (1) Improve GDB-cross scripts to download and build the dependence > packages: expat and ncurses. Or put expat and ncurses as > companion_libraries. mkedwards has these scripted up at: https://github.com/mkedwards/crosstool-ng/tree/master/scripts/build/companion_libs We should add these in upstream. I'd rather focus on GCC first, get that out as a prototype, then add GDB. > (2) To remove dependence, embedded toolchain requires more > prerequisites like zlib. > New config and scripts are required to support the packages. GCC and similar ship with a copy of zlib. I wonder if we should use that? > (3) Currently, the embedded toolchain source packages are released > as a tarball, which includes gcc, gmp, etc. New scripts are required > to support it. We should check what needs to be done to meet the licenses. All of the tarballs used in building the binary are in .build/taraballs. > (4) To make sure the toolchain can run with lower version glibc like > redhat4/5, the embedded toolchain requires lower version native > gcc4.3.6 to build it. Why is this? The RHEL 5 GCC 4.1 builds the glibc compiler just fine. > To support it, > . Users can build the native gcc manually, or > . Enhance the scripts to add one step to build native gcc. > (5) All the default package configurations are different from > embedded toolchain internal build scripts. > Since the configurations in embedded toolchain had been tuned > and tested, we will change the configurations in crosstool-ng if they > do not match and not configurable. > The same rule will apply for linaro toolchain. Yip. We should make them configurable and get that upstream. -- Michael _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
