###############################
###  xkwy-gcc-arm-20220529  ###
###############################

[verify]
    $ gpg --verify xkwy-gcc-arm-20220529.tar.xz.sign
    > gpg: assuming signed data in 'xkwy-gcc-arm-20220529.tar.xz'
    > gpg: Signature made Sun 29 May 2022 12:21:15 AM 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-20220529.tar.xz -C /opt
    $ sudo ln -s -T arm-20220529 /opt/xkwy-gcc/arm-latest
    $ /opt/xkwy-gcc/arm-20220529/bin/arm-xkwy-linux-gnueabihf-gcc -v # for check

[version]
    gcc: 12.1.0
    glibc: 2.35
    kernel header: 5.15.43
    built-in: gmp-6.2.1, mpfr-4.1.0, mpc-1.2.1, isl-0.24
    gdb: 12.1
    binutils: 2.38

[checksum]
    md5: 0661099f82f34c70ff658d8d9bf107e0  xkwy-gcc-arm-20220529.tar.xz
    sha1: 48bc1fbc38f038bb666194914f9ff1854701e7ee  xkwy-gcc-arm-20220529.tar.xz
    sha256: 2596f4631df3d72f3299915feb3f1f9f472d5aa0adefa7db16f51433d459ac4b  xkwy-gcc-arm-20220529.tar.xz
    sha384: 93eaecc83943ad1b2d3f914e61f7c4b4fa95f78905dd097ff850727549eea3533e53cca9635725d1e7b208c4e0a9b970  xkwy-gcc-arm-20220529.tar.xz
    sha512: f0961c70f5ca042306f6adf2739e6eded264e6ee37eda126b446efc97e011a83858aa62c466539abc7b2390cc0a7d43b285e142426dc1600e6e56488989b63a4  xkwy-gcc-arm-20220529.tar.xz


[change log]
    [2022-05-29]
        1. update gcc version to 12.1.0 (2022-05-06)
        2. update binutils version to 2.38 (2022-02-09)
        3. update glibc version to 2.35 (2022-02-03)
        4. update kernel header version to 5.15.43 (2022-05-25)
        5. update gdb version to 12.1 (2022-05-01)
        6. host: all configured with empty prefix so that could be installed to anywhere
        7. host: all executables statically linked for maximum compatibility
        8. host: add without vendor middle name symbolic links for executables
        9. gcc: configured with sysroot and build-sysroot
        10. gcc: add fortran language support
        11. gcc: enable-gnu-indirect-function
        12. gcc: fpu changed from vfpv3-d16 to neon(neon-vfpv3) (arm only)
        13. target: enable *sysroot*/usr/ directory
        14. target: all configured with prefix=/usr
        15. target: add install prebuilt libgmp (required by target gdbserver)
        16. tar.xz: format changed to posix: POSIX 1003.1-2001 (pax) format.
    [2021-12-18]
        1. update gcc version to 11.2.0
        2. update binutils version to 2.37
        3. update glibc version to 2.34
        4. update kernel header version to 5.15.10
        5. update isl version to 0.24
    [2021-04-28]
        1. update gdb version to 10.2
        2. update gcc version to 11.1.0
        3. update kernel header version to 5.12
    [2021-04-09]
        1. update binutils version to 2.36.1
        2. update gdb version to 10.1
        3. update gcc version to 10.3.0
        4. update gmp version to 6.2.1
        5. update mpc version to 1.2.1
        6. update isl version to 0.23
        7. update kernel header version to 5.11.12
        8. update glibc version to 2.33
    [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: 2022-05-29