I've posted an issue (and one bug) to GCC regarding native lto bootstrap issues with 5.1/5.1.1 (perhaps trunk also) in reference to stpcpy and sys_siglist which can be found here:
https://gcc.gnu.org/ml/gcc/2015-05/msg00084.html Essentially, slim lto bootstraps fails due to GCC swapping out the stpcpy symbol in libiberty with its builtin (using -fno-builtin-stpcpy currently as a workaround) and both slim and fat bootstraps fail due to an undefined reference to sys_siglist due to inconsistent checking during configuration (resolved by passing in "libiberty_cv_var_sys_siglist=no" during configuration of libiberty). Also, I'm experiencing a currently unresolved issue building gcc 5.1/5.1.1 natively for i686 using dw2 exceptions resulting in it failing out with the following during stage1 libgcc: M:\\msys64\\build\\staging\\mingw-w64-i686-gcc5\\src\\build-i686-w64-mingw32\\i686-w64-mingw32\\libgcc/../../../gcc-5.1.1/libgcc/libgcc2.c:2240: undefined reference to `__EH_FRAME_BEGIN__' __main_s.o: In function `_do_global_ctors': M:\\msys64\\build\\staging\\mingw-w64-i686-gcc5\\src\\build-i686-w64-mingw32\\i686-w64-mingw32\\libgcc/../../../gcc-5.1.1/libgcc/libgcc2.c:2256: undefined reference to `__EH_FRAME_BEGIN__' collect2.exe: error: ld returned 1 exit status Makefile:947: recipe for target 'libgcc_s.dll' failed I'm less experienced with this type of issue so if anyone could give me some guidance on this before I report the issue, it would be greatly appreciated. The issue does not come up unless "--disable-sjlj-exceptions" is specified during configuration. This didn't occur under 4.9.2 and appears new to 5.1. Full build logs for libgcc found here: http://pastebin.com/xMnZxmbs I mainly just want to try and eliminate other possible causes before creating a bug for it though the same configuration builds fine for gcc 4.9.2. Thanks, Matt ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
