Message ID | 20161104141647.231bb720b4679f7fe57bd81a@danny.cz |
---|---|
State | New |
Headers | show |
On Fri, 4 Nov 2016, Dan Horák wrote: > On Fri, 4 Nov 2016 13:06:05 +0000 > Joseph Myers <joseph@codesourcery.com> wrote: > > > On Fri, 4 Nov 2016, Adhemerval Zanella wrote: > > > > > I faced the same issue and the solution I found was to configure > > > gcc with '--disable-shared'. It is not an optimal approach for a > > > complete toolchain, but it is at least suffice to correctly build > > > glibc. > > > > The first GCC (whose build fails) *is* configured with > > --disable-shared (and --without-headers --with-newlib to get > > inhibit_libc defined). It still tries to build unwind code that > > includes libc headers unconditionally. > > we used to have the following patch in the Fedora cross-gcc > http://pkgs.fedoraproject.org/cgit/rpms/cross-gcc.git/log/cross-gcc-with-libgcc.patch Thanks. I see that stdlib.h include was removed by r231697 | edlinger | 2015-12-16 15:24:52 +0000 (Wed, 16 Dec 2015) | 5 lines 2015-12-16 Bernd Edlinger <bernd.edlinger@hotmail.de> * unwind-generic.h (_Unwind_GetTextRelBase): Call __builtin_abort instead of abort to avoid dependency on stdlib.h. so I'll see if the problem goes away with newer GCC (I'm initially trying to clean up results with GCC 5 branch before going on to GCC 6 and mainline).
diff -up gcc-4.7.0/libgcc/unwind-generic.h.cross-libgcc-ia64 gcc-4.7.0/libgcc/unwind-generic.h --- gcc-4.7.0/libgcc/unwind-generic.h.cross-libgcc-ia64 2012-06-01 18:14:22.552450391 +0200 +++ gcc-4.7.0libgcc/unwind-generic.h 2012-06-01 18:14:42.523121821 +0200 @@ -211,7 +211,9 @@ _Unwind_SjLj_Resume_or_Rethrow (struct _ compatible with the standard ABI for IA-64, we inline these. */ #ifdef __ia64__ +#ifndef inhibit_libc #include <stdlib.h> +#endif static inline _Unwind_Ptr _Unwind_GetDataRelBase (struct _Unwind_Context *_C)