> Deal all, > > I'm very pleased to announce that arm64 platform for Tizen:Common is > released. Now, we could have one more architecture besides arm/i586/x86_64 > for tizen platform. Actually, the snapshot image was generated since > December but crosswalk/crosswalk-bin were excluded due to build failure. > Finally, I've resolved the build failure of crosswalk/crosswalk-bin for > arm64[1].
Great! Well Done! Thank you so much. > > To enable arm64 platform, we upgraded toolchain packages(gcc,glibc,binutils > and so on) to the latest version because they have many/much improvements > for arm64. > > * Updated toolchain packages list: > - gcc: 4.8.2 -> 4.9.2 > - binutils: 2.23.1 -> 2.24.90 > - glibc: 2.18 -> 2.20 > - gdb: 7.5.1 -> 7.8.1 > - gmp: 5.1.3 -> 6.0 > - qemu: 1.6.0 -> 2.1.0 > - llvm: 3.1 -> 3.5.0 > I think this upgrade can be really helpful because we can get performance > improvements not only arm64 but also other architectures(arm/i586/x86_64). > You can see the release notes from gcc 4.9 version[2]. > > You can see the guide how to run the image on qemu and ARM Juno board[3]. > Unfortunately, qemu-aarch64 can only emulate a mach-virt machine, thus it > can't support a display stuff. > > To build your package for aarch64(arm64) using GBS tool, you just type > 'aarch64' in the architecture field. > $ gbs build -A aarch64 > And you can specify the architecture option in the spec file like below: > %ifarch aarch64 > In the source code, you can use below definition to detect the arm64: > #if defined(__aarch64__) > > Please note the aarch64 uses LP64 data model which is identical with x86_64. > The main differences between ILP32(arm/i586) and LP64(aarch64/x86_64) are > size of pointer and long data types. The LP64 model uses 64bit long type and > 64bit pointer type. So, do not allow conversion of pointer type(8bytes) to > int type(4bytes). > > Thanks to Philippe Coval's effort, libav and some multimedia packages were > upgraded to support arm64 well. I think there is still many packages waiting > for upgrade especially architecture specific packages. Please upgrade your > packages if possible :) > > Thanks to special guys who made an effort to enable arm64 platform. > (Vyachelav, Ilya, Yury, Stephane, Phillipe and ...) > > [1]: > https://review.tizen.org/gerrit/gitweb?p=platform/framework/web/crosswalk.gi > t;a=shortlog;h=refs/heads/tizen > [2]: https://gcc.gnu.org/gcc-4.9/changes.html > [3]: https://wiki.tizen.org/wiki/Tizen_ARM64_Development > > _______________________________________________ > Dev mailing list > Dev@lists.tizen.org > https://lists.tizen.org/listinfo/dev > > _______________________________________________ Dev mailing list Dev@lists.tizen.org https://lists.tizen.org/listinfo/dev
