glibc-2.33.9000 Failed to adapt loongarch

[SevDaisy]

while I run glibc-glibc-2.33.9000/configure --host=loongarch-linux-gnu, error happened as checking host system type... Invalid configuration 'loongarch-linux-gnu': machine 'loongarch-unknown' not recognized.

By reading the source code, I run as glibc-glibc-2.33.9000/scripts/config.sub loongarch-linux-gnu again, which is the line that directly caused the error. Throw adding set -x at glibc-glibc-2.33.9000/scripts/config.sub，I get the following msg:

root@9848f4ac5022:/build# /build/glibc-glibc-2.33.9000/scripts/config.sub loongarch-linux-gnu
+ timestamp=2019-01-01
+ echo /build/glibc-glibc-2.33.9000/scripts/config.sub
+ sed -e s,.*/,,
+ me=config.sub
+ usage=Usage: /build/glibc-glibc-2.33.9000/scripts/config.sub [OPTION] CPU-MFR-OPSYS or ALIAS

Canonicalize a configuration name.

Options:
  -h, --help         print this help, then exit
  -t, --time-stamp   print date of last modification, then exit
  -v, --version      print version number, then exit

Report bugs and patches to <[email protected]>.
+ version=GNU config.sub (2019-01-01)

Copyright 1992-2019 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ help=
Try `config.sub --help' for more information.
+ test 1 -gt 0
+ break
+ IFS=- read field1 field2 field3 field4
+ maybe_os=linux-gnu
+ basic_machine=loongarch
+ os=linux-gnu
+ cpu=loongarch
+ vendor=unknown
+ unset -v basic_machine
+ echo Invalid configuration `loongarch-linux-gnu': machine `loongarch-unknown' not recognized
Invalid configuration `loongarch-linux-gnu': machine `loongarch-unknown' not recognized
+ exit 1

Those msgs lead me to line [1157~1252] of glibc-glibc-2.33.9000/scripts/config.sub.There has a so long supported cpu list, without any one seem like loongson

[SevDaisy]

sorry, it's my fault.

how can I run it at tag glibc-2.33.9000....

[xen0n]

I don't know why you insist on using the 2.33 version when working 2.35 and trunk versions are available, and 2.33 having incompatible symbol versions, but you should be using loongarch64-unknown-linux-gnu as the triple.