###########################
###  xkwy-gcc-arm-20200807  ###
###########################

[verify]
    $ gpg --verify xkwy-gcc-arm-20200807.tar.xz.sign
    > gpg: assuming signed data in 'xkwy-gcc-arm-20200807.tar.xz'
    > gpg: Signature made Fri Aug  7 20:17:36 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-arm-20200807.tar.xz -C /opt
    $ /opt/xkwy-gcc/arm-20200807/bin/arm-xkwy-linux-gnueabihf-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: 605c1a204cd68b5ffde2b48ced596f6d  xkwy-gcc-arm-20200807.tar.xz
    sha1: 3fd2535ddc8e85c66549b3665897cabe7392db67  xkwy-gcc-arm-20200807.tar.xz
    sha256: 74ec303be181fc1d0ab82e002db256c8b96c59f7a8b22381acb60863602e94bc  xkwy-gcc-arm-20200807.tar.xz
    sha384: 506ffcc3f6384c31eecfc2b3228e78fc11d4a424b42be35b6fefab2b71b19a24e512d5ce43237aeb8b3c03363cedf7eb  xkwy-gcc-arm-20200807.tar.xz
    sha512: 2a284f93306486fcfc752497507f167aacd77100803d4b801f7bfb5358025ffc5bcf9d611c96aa7b2f7667323b01d49606e316391f774f6fcb8d5ccbf66ac8c6  xkwy-gcc-arm-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