<!-- go.dev/issue/74667 -->
`cmd/doc`, and `go tool doc` have been deleted. `go doc` can be used as
a replacement for `go tool doc`: it takes the same flags and arguments and
has the same behavior.

pkg syscall (openbsd-386-cgo), const SYS_UTIMENSAT = 326
pkg syscall (openbsd-386-cgo), const SYS_UTIMES = 138
pkg syscall (openbsd-386-cgo), const SYS_WAIT4 = 7
pkg syscall (openbsd-386-cgo), const SYS___THRSLEEP = 300
pkg syscall (openbsd-386-cgo), const SizeofIfData = 208
pkg syscall (openbsd-386-cgo), const SizeofIfMsghdr = 232
pkg syscall (openbsd-386-cgo), const SizeofRtMetrics = 48

pkg runtime/cgo (linux-amd64-cgo), type Incomplete struct #46731
pkg runtime/cgo (linux-arm-cgo), type Incomplete struct #46731
pkg runtime/cgo (netbsd-386-cgo), type Incomplete struct #46731
pkg runtime/cgo (netbsd-amd64-cgo), type Incomplete struct #46731
pkg runtime/cgo (netbsd-arm64-cgo), type Incomplete struct #46731
pkg runtime/cgo (netbsd-arm-cgo), type Incomplete struct #46731

pkg runtime/cgo (darwin-arm64-cgo), type Handle uintptr
pkg runtime/cgo (freebsd-386-cgo), func NewHandle(interface{}) Handle
pkg runtime/cgo (freebsd-386-cgo), method (Handle) Delete()
pkg runtime/cgo (freebsd-386-cgo), method (Handle) Value() interface{}
pkg runtime/cgo (freebsd-386-cgo), type Handle uintptr
pkg runtime/cgo (freebsd-amd64-cgo), func NewHandle(interface{}) Handle

environment variable when running the go tool: set it to 1 to enable
the use of cgo, and to 0 to disable it. The go tool will set the
build constraint "cgo" if cgo is enabled. The special import "C"
implies the "cgo" build constraint, as though the file also said
"//go:build cgo".  Therefore, if cgo is disabled, files that import
"C" will not be built by the go tool. (For more about build constraints

*.pyc
._*
.nfs.*
[56789a].out
*~
*.orig
*.rej
*.exe
.*.swp
core
*.cgo*.go
*.cgo*.c
_cgo_*
_obj
_test
_testmain.go

/VERSION.cache
/bin/
/build.out
/doc/articles/wiki/*.bin
/goinstall.log
/last-change
/misc/cgo/life/run.out
/misc/cgo/stdio/run.out
/misc/cgo/testso/main
/pkg/
/src/*.*/
/src/cmd/cgo/zdefaultcc.go
/src/cmd/dist/dist
/src/cmd/go/internal/cfg/zdefaultcc.go

pkg syscall (openbsd-386-cgo), const EBADMSG = 92 #67998
pkg syscall (openbsd-386-cgo), const ELAST = 95 #67998
pkg syscall (openbsd-386-cgo), const ENOTRECOVERABLE = 93 #67998
pkg syscall (openbsd-386-cgo), const ENOTRECOVERABLE Errno #67998
pkg syscall (openbsd-386-cgo), const EOWNERDEAD = 94 #67998
pkg syscall (openbsd-386-cgo), const EOWNERDEAD Errno #67998
pkg syscall (openbsd-386-cgo), const EPROTO = 95 #67998

pkg syscall (freebsd-arm64-cgo), const AF_ISO = 7
pkg syscall (freebsd-arm64-cgo), const AF_ISO ideal-int
pkg syscall (freebsd-arm64-cgo), const AF_LAT = 14
pkg syscall (freebsd-arm64-cgo), const AF_LAT ideal-int
pkg syscall (freebsd-arm64-cgo), const AF_LINK = 18
pkg syscall (freebsd-arm64-cgo), const AF_LINK ideal-int
pkg syscall (freebsd-arm64-cgo), const AF_LOCAL = 1

pkg syscall (darwin-amd64-cgo), func CheckBpfVersion //deprecated
pkg syscall (darwin-amd64-cgo), func FlushBpf //deprecated
pkg syscall (darwin-amd64-cgo), func ParseRoutingMessage //deprecated
pkg syscall (darwin-amd64-cgo), func ParseRoutingSockaddr //deprecated
pkg syscall (darwin-amd64-cgo), func RouteRIB //deprecated
pkg syscall (darwin-amd64-cgo), func SetBpf //deprecated

## Tools {#tools}

### Go command {#go-command}