mirror of
https://github.com/rwinkhart/sys.git
synced 2026-08-29 05:16:30 -04:00
Keith Randall
45d26eb94b
Call into libSystem (Darwin's libc equivalent) to do system calls. Raw syscalls are not a supported ABI on Darwin, they want us to use libSystem calls instead. The stdlib has already been converted to this new regime. This package is vendored into the stdlib, so we need to fix it also, then vendor it in again. Because this package isn't tied to a Go release, we need to keep the old code around and use the new code only for 1.12 and up. Update golang/go#17490 Change-Id: Idbcacff096b5bfeac871aa75dfd971570ac93322 Reviewed-on: https://go-review.googlesource.com/c/154179 Reviewed-by: Ian Lance Taylor <iant@golang.org>
217 lines
7.2 KiB
Bash
Executable File
217 lines
7.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2009 The Go Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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# This script runs or (given -n) prints suggested commands to generate files for
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# the Architecture/OS specified by the GOARCH and GOOS environment variables.
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# See README.md for more information about how the build system works.
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GOOSARCH="${GOOS}_${GOARCH}"
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# defaults
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mksyscall="go run mksyscall.go"
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mkerrors="./mkerrors.sh"
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zerrors="zerrors_$GOOSARCH.go"
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mksysctl=""
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zsysctl="zsysctl_$GOOSARCH.go"
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mksysnum=
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mktypes=
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mkasm=
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run="sh"
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cmd=""
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case "$1" in
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-syscalls)
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for i in zsyscall*go
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do
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# Run the command line that appears in the first line
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# of the generated file to regenerate it.
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sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
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rm _$i
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done
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exit 0
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;;
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-n)
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run="cat"
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cmd="echo"
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shift
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esac
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case "$#" in
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0)
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;;
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*)
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echo 'usage: mkall.sh [-n]' 1>&2
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exit 2
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esac
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if [[ "$GOOS" = "linux" ]] && [[ "$GOARCH" != "sparc64" ]]; then
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# Use then new build system
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# Files generated through docker (use $cmd so you can Ctl-C the build or run)
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$cmd docker build --tag generate:$GOOS $GOOS
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$cmd docker run --interactive --tty --volume $(dirname "$(readlink -f "$0")"):/build generate:$GOOS
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exit
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fi
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GOOSARCH_in=syscall_$GOOSARCH.go
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case "$GOOSARCH" in
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_* | *_ | _)
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echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
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exit 1
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;;
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aix_ppc)
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mkerrors="$mkerrors -maix32"
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mksyscall="./mksyscall_aix_ppc.pl -aix"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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aix_ppc64)
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mkerrors="$mkerrors -maix64"
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mksyscall="./mksyscall_aix_ppc64.pl -aix"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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darwin_386)
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mkerrors="$mkerrors -m32"
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mksyscall="go run mksyscall.go -l32"
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mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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mkasm="go run mkasm_darwin.go"
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;;
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darwin_amd64)
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mkerrors="$mkerrors -m64"
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mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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mkasm="go run mkasm_darwin.go"
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;;
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darwin_arm)
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mkerrors="$mkerrors"
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mksyscall="go run mksyscall.go -l32"
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mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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mkasm="go run mkasm_darwin.go"
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;;
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darwin_arm64)
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mkerrors="$mkerrors -m64"
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mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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mkasm="go run mkasm_darwin.go"
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;;
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dragonfly_amd64)
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mkerrors="$mkerrors -m64"
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mksyscall="go run mksyscall.go -dragonfly"
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mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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freebsd_386)
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mkerrors="$mkerrors -m32"
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mksyscall="go run mksyscall.go -l32"
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mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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freebsd_amd64)
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mkerrors="$mkerrors -m64"
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mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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freebsd_arm)
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mkerrors="$mkerrors"
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mksyscall="go run mksyscall.go -l32 -arm"
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mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
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# Let the type of C char be signed for making the bare syscall
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# API consistent across platforms.
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mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
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;;
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linux_sparc64)
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GOOSARCH_in=syscall_linux_sparc64.go
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unistd_h=/usr/include/sparc64-linux-gnu/asm/unistd.h
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mkerrors="$mkerrors -m64"
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mksysnum="./mksysnum_linux.pl $unistd_h"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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netbsd_386)
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mkerrors="$mkerrors -m32"
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mksyscall="go run mksyscall.go -l32 -netbsd"
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mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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netbsd_amd64)
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mkerrors="$mkerrors -m64"
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mksyscall="go run mksyscall.go -netbsd"
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mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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netbsd_arm)
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mkerrors="$mkerrors"
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mksyscall="go run mksyscall.go -l32 -netbsd -arm"
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mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
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# Let the type of C char be signed for making the bare syscall
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# API consistent across platforms.
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mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
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;;
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openbsd_386)
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mkerrors="$mkerrors -m32"
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mksyscall="go run mksyscall.go -l32 -openbsd"
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mksysctl="./mksysctl_openbsd.pl"
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mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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openbsd_amd64)
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mkerrors="$mkerrors -m64"
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mksyscall="go run mksyscall.go -openbsd"
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mksysctl="./mksysctl_openbsd.pl"
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mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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openbsd_arm)
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mkerrors="$mkerrors"
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mksyscall="go run mksyscall.go -l32 -openbsd -arm"
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mksysctl="./mksysctl_openbsd.pl"
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mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
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# Let the type of C char be signed for making the bare syscall
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# API consistent across platforms.
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mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
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;;
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solaris_amd64)
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mksyscall="./mksyscall_solaris.pl"
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mkerrors="$mkerrors -m64"
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mksysnum=
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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*)
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echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
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exit 1
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;;
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esac
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(
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if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
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case "$GOOS" in
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*)
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syscall_goos="syscall_$GOOS.go"
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case "$GOOS" in
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darwin | dragonfly | freebsd | netbsd | openbsd)
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syscall_goos="syscall_bsd.go $syscall_goos"
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;;
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esac
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if [ -n "$mksyscall" ]; then
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if [ "$GOOSARCH" == "aix_ppc64" ]; then
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# aix/ppc64 script generates files instead of writing to stdin.
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echo "$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 " ;
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elif [ "$GOOS" == "darwin" ]; then
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# pre-1.12, direct syscalls
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echo "$mksyscall -tags $GOOS,$GOARCH,!go1.12 $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go";
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# 1.12 and later, syscalls via libSystem
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echo "$mksyscall -tags $GOOS,$GOARCH,go1.12 $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.1_12.go";
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else
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echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go";
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fi
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fi
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esac
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if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
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if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
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if [ -n "$mktypes" ]; then
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echo "$mktypes types_$GOOS.go | go run mkpost.go > ztypes_$GOOSARCH.go";
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if [ -n "$mkasm" ]; then echo "$mkasm $GOARCH"; fi
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fi
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) | $run
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