0d8a05c38e
The three patches allow to compile applications using TLS emulation from libgcc or C++ applications. The patches 892-libgcc-mkmap-symver-support-skip_underscore.patch and 893-libgcc-config-bfin-use-the-generic-linker-version-in.patch fixes how libgcc is generated, by making the necessary libgcc symbols declared "GLOBAL", and therefore visible outside of libgcc. This fixes a large number of undefined reference issues (for either C++ applications or applications using TLS emulation). This was reported as gcc PR74748. The patch 894-libgcc-fix-DWARF-compilation-with-FDPIC-targets.patch allows to build DWARF in FDPIC mode. This patch replaces the older 892-disable-dwarf-bfin.patch, as instead of disabling DWARF support, it fixes it. This was reported as gcc PR68468. In order to get C++ working without unresolved symbols, we also need to disable symbol versioning (--disable-symvers). This is a remaining issue in gcc which will be investigated at a later point. Since this commit fixes C++ support in Blackfin, it re-enables the selection of C++ support for this architecture. Fixes: (alsa-lib emutls) http://autobuild.buildroot.net/results/8544ce58d75820666579db93a25ca5656a8efa8e/ (cairo emutls) http://autobuild.buildroot.net/results/88b02a5dd5408318941ccbfcea0a9cbaa331500a/ (audiofile c++) http://autobuild.buildroot.net/results/394e530c5dcd9ccb590eb151aeaadb37d11e0e39/ (assimp c++) http://autobuild.buildroot.net/results/01f4be126c2d786a5ad7f220c2cf60539888a480/ (bellagio c++) http://autobuild.buildroot.net/results/ada/ada44228bf13ec05382275bd6571396f5ba2b1f7/ Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Tested-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> |
||
|---|---|---|
| .. | ||
| gcc-final.hash | ||
| gcc-final.mk | ||