[Buildroot] [PATCH 3/3] gcc: xtensa: fix __builtin_frame_address use with shared libgcc

[Peter Korsgaard]

>>>>> "Baruch" == Baruch Siach <baruch at tkos.co.il> writes:

 > The xtensa port uses __xtensa_libgcc_window_spill in libgcc to implement
 > __builtin_frame_address. This symbol is local/hidden in libgcc. This is not a
 > problem when linking against static libgcc. But g++ defaults to
 > -shared-libgcc, thus breaking link against C++ shared libraries that are using
 > __builtin_frame_address as follows:

 > ld: test: hidden symbol `__xtensa_libgcc_window_spill' in .../libgcc.a(lib2funcs.o) is referenced by DSO

 > Add upstream patches that make libgcc_s.so a linker script that links in
 > unresolved symbols from the static libgcc, similar to the ARM and PowerPC
 > ports.

 > Fixes:
 > http://autobuild.buildroot.net/results/e2d/e2d1a763fa86b8575e2e48e6d73c018175f43e7c/

Committed, thanks.

-- 
Bye, Peter Korsgaard