#!/usr/bin/env bash

# Copyright 2009 The Go Authors. All rights reserved.

# Use of this source code is governed by a BSD-style

# license that can be found in the LICENSE file.

# This script runs or (given -n) prints suggested commands to generate files for

# the Architecture/OS specified by the GOARCH and GOOS environment variables.

# See README.md for more information about how the build system works.

GOOSARCH="${GOOS}_${GOARCH}"

# defaults

mksyscall="go run mksyscall.go"

mkerrors="./mkerrors.sh"

zerrors="zerrors_$GOOSARCH.go"

mksysctl=""

zsysctl="zsysctl_$GOOSARCH.go"

mksysnum=

mktypes=

mkasm=

run="sh"

cmd=""

case "$1" in

-syscalls)

	for i in zsyscall*go

	do

		# Run the command line that appears in the first line

		# of the generated file to regenerate it.

		sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i

		rm _$i

	done

	exit 0

	;;

-n)

	run="cat"

	cmd="echo"

	shift

esac

case "$#" in

0)

	;;

*)

	echo 'usage: mkall.sh [-n]' 1>&2

	exit 2

esac

if [[ "$GOOS" = "linux" ]]; then

	# Use the Docker-based build system

	# Files generated through docker (use $cmd so you can Ctl-C the build or run)

	$cmd docker build --tag generate:$GOOS $GOOS

	exit

fi

GOOSARCH_in=syscall_$GOOSARCH.go

case "$GOOSARCH" in

_* | *_ | _)

	echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2

	exit 1

	;;

aix_ppc)

	mkerrors="$mkerrors -maix32"

	mksyscall="go run mksyscall_aix_ppc.go -aix"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

aix_ppc64)

	mkerrors="$mkerrors -maix64"

	mksyscall="go run mksyscall_aix_ppc64.go -aix"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

darwin_amd64)

	mkerrors="$mkerrors -m64"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

darwin_arm64)

	mkerrors="$mkerrors -m64"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

dragonfly_amd64)

	mkerrors="$mkerrors -m64"

	mksyscall="go run mksyscall.go -dragonfly"

	mksysnum="go run mksysnum.go 'https://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master'"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

freebsd_386)

	mkerrors="$mkerrors -m32"

	mksyscall="go run mksyscall.go -l32"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

freebsd_amd64)

	mkerrors="$mkerrors -m64"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

freebsd_arm)

	mkerrors="$mkerrors"

	mksyscall="go run mksyscall.go -l32 -arm"

	# Let the type of C char be signed for making the bare syscall

	# API consistent across platforms.

	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"

	;;

freebsd_arm64)

	mkerrors="$mkerrors -m64"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"

	;;

netbsd_386)

	mkerrors="$mkerrors -m32"

	mksyscall="go run mksyscall.go -l32 -netbsd"

	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

netbsd_amd64)

	mkerrors="$mkerrors -m64"

	mksyscall="go run mksyscall.go -netbsd"

	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

netbsd_arm)

	mkerrors="$mkerrors"

	mksyscall="go run mksyscall.go -l32 -netbsd -arm"

	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"

	# Let the type of C char be signed for making the bare syscall

	# API consistent across platforms.

	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"

	;;

netbsd_arm64)

	mkerrors="$mkerrors -m64"

	mksyscall="go run mksyscall.go -netbsd"

	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

openbsd_386)

	mkerrors="$mkerrors -m32"

	mksysctl="go run mksysctl_openbsd.go"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

openbsd_amd64)

	mkerrors="$mkerrors -m64"

	mksysctl="go run mksysctl_openbsd.go"

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

openbsd_arm)

	mkerrors="$mkerrors"

	mksysctl="go run mksysctl_openbsd.go"

	# Let the type of C char be signed for making the bare syscall

	# API consistent across platforms.

	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"

	;;

openbsd_arm64)

	mkerrors="$mkerrors -m64"

	mksysctl="go run mksysctl_openbsd.go"

	# Let the type of C char be signed for making the bare syscall

	# API consistent across platforms.

	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"

	;;

openbsd_mips64)

	mkerrors="$mkerrors -m64"

	mksyscall="go run mksyscall.go -openbsd"

	mksysctl="go run mksysctl_openbsd.go"

	mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"

	# Let the type of C char be signed for making the bare syscall

	# API consistent across platforms.

	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"

	;;

solaris_amd64)

	mksyscall="go run mksyscall_solaris.go"

	mkerrors="$mkerrors -m64"

	mksysnum=

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

illumos_amd64)

        mksyscall="go run mksyscall_solaris.go"

	mkerrors=

	mksysnum=

	mktypes="GOARCH=$GOARCH go tool cgo -godefs"

	;;

*)

	echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2

	exit 1

	;;

esac

(

	if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi

	case "$GOOS" in

	*)

		syscall_goos="syscall_$GOOS.go"

		case "$GOOS" in

		darwin | dragonfly | freebsd | netbsd | openbsd)

			syscall_goos="syscall_bsd.go $syscall_goos"

			;;

		esac

		if [ -n "$mksyscall" ]; then

			if [ "$GOOSARCH" == "aix_ppc64" ]; then

				# aix/ppc64 script generates files instead of writing to stdin.

				echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in && gofmt -w zsyscall_$GOOSARCH.go && gofmt -w zsyscall_"$GOOSARCH"_gccgo.go && gofmt -w zsyscall_"$GOOSARCH"_gc.go " ;

			elif [ "$GOOS" == "darwin" ]; then

			        # 1.12 and later, syscalls via libSystem

				echo "$mksyscall -tags $GOOS,$GOARCH,go1.12 $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go";

				# 1.13 and later, syscalls via libSystem (including syscallPtr)

				echo "$mksyscall -tags $GOOS,$GOARCH,go1.13 syscall_darwin.1_13.go |gofmt >zsyscall_$GOOSARCH.1_13.go";

			elif [ "$GOOS" == "illumos" ]; then

			        # illumos code generation requires a --illumos switch

			        echo "$mksyscall -illumos -tags illumos,$GOARCH syscall_illumos.go |gofmt > zsyscall_illumos_$GOARCH.go";

			        # illumos implies solaris, so solaris code generation is also required

				echo "$mksyscall -tags solaris,$GOARCH syscall_solaris.go syscall_solaris_$GOARCH.go |gofmt >zsyscall_solaris_$GOARCH.go";

			else

				echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go";

			fi

		fi

	esac

	if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi

	if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi

	if [ -n "$mktypes" ]; then echo "$mktypes types_$GOOS.go | go run mkpost.go > ztypes_$GOOSARCH.go"; fi

) | $run