###########################
###  xkwy-gcc-aarch64-20200807  ###
###########################

[verify]
    $ gpg --verify xkwy-gcc-aarch64-20200807.tar.xz.sign
    > gpg: assuming signed data in 'xkwy-gcc-aarch64-20200807.tar.xz'
    > gpg: Signature made Fri Aug  7 20:31:00 2020 CST
    > gpg:                using RSA key 7D74C4A6F52A8C2A7D88FFAB1CFE6CB6E9F8894A
    > gpg: Good signature from "xkwy.xkwy <xkwy001@gmail.com>" [unknown]
    > gpg: WARNING: This key is not certified with a trusted signature!
    > gpg:          There is no indication that the signature belongs to the owner.
    > Primary key fingerprint: 7D74 C4A6 F52A 8C2A 7D88  FFAB 1CFE 6CB6 E9F8 894A

[install]
    $ sudo tar xf xkwy-gcc-aarch64-20200807.tar.xz -C /opt
    $ /opt/xkwy-gcc/aarch64-20200807/bin/aarch64-xkwy-linux-gnu-gcc -v # for check

[version]
    binutils: 2.35
    gdb: 9.2
    kernel header: 5.8
    gcc: 10.2.0
    gmp: 6.2.0
    mpfr: 4.1.0
    mpc: 1.1.0
    isl: 0.22.1
    glibc: 2.32

[checksum]
    md5: f0a48ed56bbe476ed05ac54687c65eee  xkwy-gcc-aarch64-20200807.tar.xz
    sha1: aef39c9ed06b67037f07bb35697062a5e1d7e82a  xkwy-gcc-aarch64-20200807.tar.xz
    sha256: c4b0e6e5665d528f03ead7d27a854bee35d381257bfde6313602409d9d49f7cf  xkwy-gcc-aarch64-20200807.tar.xz
    sha384: 843aa8d45bf9998a76a21fc1506fdf14ecf5553380f2e07adfae7b92ddd82c8f04a0833e66e95f30f30ffbb652f802e7  xkwy-gcc-aarch64-20200807.tar.xz
    sha512: 70f78a7c95f29855402942d38803995ba66ac51aecc4f06747be0f6d2c7dd09d9757ea765ecbf79684ce59a79d938fc6a4f5e993fe325c7b062e8451b30c6dbd  xkwy-gcc-aarch64-20200807.tar.xz


[change log]
    [2020-08-07]
        1. add aarch64 support
        2. update binutils version to 2.35
        3. update gdb version to 9.2
        4. update gcc version to 10.2.0
        5. update mpfr version to 4.1.0
        6. update kernel header version to 5.8
        7. update glibc version to 2.32
        8. gcc: enable thumb mode
        9. gcc: fpu change to vfpv3-d16
        10. gcc: float abi change to hard
        11. gdb(host): use static linking for more compatibility
    [2020-05-17]
        1. add gdb/gdbserver support, version 9.1
        2. add gpg sign for tarball package
        3. add version as sub directory to install destination
        4. update binutils version to 2.34
        5. update kernel header version to 5.6.11
        6. update glibc version to 2.31
        7. update gcc version to 10.1.0
        8. update gmp version to 6.2.0
        9. update isl version to 0.22.1
        10. binutils: enable gold,ld,libada,libssp,lto,host-shared
        11. gcc: default cpu change to cortex-a9(armv7-a), fpu=vfpv3
        12. gcc: float abi change to softfp
        13. glibc: enable stackguard-randomization,stack-protector=strong
        14. glibc: add pkgversion and bugurl
        15. optimize change log format
    [2019-08-14]
        1. gcc: using static gmp/mpc/mpfr/isl libs
        2. tar.xz: use multi-threads compress
        3. tar.xz: files' group and owner to zero (current user)
        4. glibc: compatibility kernel version down to 3.2.0
        5. binutils: strip executable file to reduce size
        6. gcc: strip executable file to reduce size
        7. update gcc&glibc build order, only need once gcc configure
        8. update gcc version to 9.2.0
        9. update kernel header version to 5.2.8
        10. update glibc version to 2.30
    [2019-05-04]
        1. update gcc version to 9.1.0
        2. update kernel header version to 5.0.12
        3. add sysroot support, fix some bugs about limits.h
        4. add custom pkgversion and bugurl
    [2019-02-23]
        1. update binutils version to 2.32
        2. update gcc version to 8.3.0
        3. gcc: using system's buildin gmp/mpc/mpfr/isl libs
        4. update kernel header version to 4.19.24
        5. update glibc version to 2.29
        6. glibc: compatibility kernel version down to 3.16.0
    [2018-05-26]
        1. update gcc version to 8.1.0
        2. fixup bug: libc.so not found


[author]
    e-mail: xkwy001(at)gmail.com
    date: 2020-08-07