tinygo support progress overview

[leongross]

Is your feature request related to a problem? Please describe.
Currently, many of the busybox commands fail to build using tinygo.
This issue should cover the current process of enabling all subcommands to be built using tinygo.

Describe the solution you'd like
While enabling more and more commands the list of working commands in this issue will be updated. Maybe it is also a good idea to track the PRs and issues for tinygo that cover current / past changes.

Additional context

building

Since atm the tinygo support is lacking, many commands got the !tinygo build tag.
This prohibits building, so anyone recreating the build steps should be aware that this has to be removed for each command.

Further, this u-root features a tool named tinygobb which should build all the subcommands using tinygo. I had some issues with that so I built a python script that builds each command for a subfolder (here run separately in core and exp). For completeness' sake, I will add it here as well.
It also outputs build errors in csv so it can be imported to shared spreadsheet software.
Build tinygo from my fork on branch picked to get all changes (also yet unreviewd).

issues

A list of the more prevalent issues that occur during the build process that are either WIP or haven't been handled yet (not exhaustive). The majority of the work to solve this issues needs to be done in the tinygo codebase. For more details on those, see here.

• ld.lld: error: undefined symbol: golang.org/x/sys/unix.Syscall6

• ld.lld: error: undefined symbol: golang.org/x/sys/unix.Syscall

• ld.lld: error: undefined symbol: golang.org/x/sys/unix.RawSyscallNoError

• ld.lld: error: undefined symbol: golang.org/x/sys/cpu.cpuid

• lld: error: undefined symbol: github.com/klauspost/compress

• net.{UnixConn,UnixListener,ListenUnix,DialUnix,UnixAddr,UDPConn,ListenUDP,ResolveUDPAddr}

command list

core

41 tinygo build errors found.

• bind
• df
• dhclient
• dmesg
• elvish
• fusermount
• gosh
• gpgv
• gzip
• hostname
• hwclock
• init
• insmod
• ip
• kexec
• lockmsrs
• losetup
• mkfifo
• mknod
• mount
• msr
• netcat
• ntpdate
• ping
• poweroff
• rmmod
• shutdown
• sluinit
• sshd
• strace
• stty
• switch_root
• tee
• truncate
• umount
• uname
• watchdog
• watchdogd
• wget
• which
• nohup

64 cmds build successful

• backoff
• base64
• basename
• blkid
• cat
• chmod
• chroot
• cmp
• comm
• cp
• cpio
• date
• dd
• dirname
• echo
• false
• find
• free
• gpt
• grep
• hexdump
• id
• io
• kill
• lddfiles
• ln
• ls
• lsdrivers
• lsmod
• man
• md5sum
• mkdir
• mktemp
• more
• mv
• pci
• printenv
• ps
• pwd
• readlink
• rm
• rsdp
• scp
• seq
• shasum
• sleep
• sort
• strings
• sync
• tail
• tar
• time
• timeout
• touch
• tr
• true
• ts
• uniq
• unmount
• unshare
• uptime
• wc
• xargs
• yes

exp

30 tinygo build errors found.

• bootvars
• bzimage
• console
• disk_unlock
• efivarfs
• esxiboot
• getty
• hdparm
• ipmidump
• kconf
• modprobe
• netbootxyz
• newsshd
• nvme_unlock
• page
• partprobe
• pflask
• pox
• pxeserver
• run
• smbios_transfer
• ssh
• syscallfilter
• uefiboot
• vboot
• vmboot
• dumpmemmap
• fbnetboot
• localboot
• systemboot

27 cmds build successful

• acpicat
• acpigrep
• ansi
• cbmem
• crc
• dmidecode
• dumpebda
• ectool
• ed
• fbsplash
• fdtdump
• field
• fixrsdp
• forth
• freq
• lsfabric
• madeye
• readelf
• readpe
• rush
• smn
• srvfiles
• tac
• tcz
• watch
• zbi
• zimage

[10000TB]

would be good to put this evaluation into a markdown file into u-root !

[leongross]

@10000TB #2987