mirror of
https://github.com/golang/sys.git
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3421d5a6bb
Getdirentries is implemented with the __getdirentries64 function
in libSystem.dylib on darwin/{386,amd64}. That function can't be used in
an app store application.
Implement Getdirentries using the underlying
fdopendir/readdir_r/closedir for Go 1.13. The simulation isn't faithful,
and could be slow, but it should handle common cases.
For Go 1.12, fall back to raw syscalls since syscall.syscallPtr needed
to use fdopendir from libSystem.dylib is not available.
Follow CL 168479 and CL 170892 which did the same for syscall in the
stdlib.
Tested on darwin/amd64 with Go 1.11, Go 1.12 and Go 1.13
Fixes golang/go#34400
Change-Id: I631382aaea9ee7e0c4ed09e06ad5427efc620769
Reviewed-on: https://go-review.googlesource.com/c/sys/+/196478
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
230 lines
7.9 KiB
Bash
Executable File
230 lines
7.9 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" ]]; then
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# Use the Docker-based 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="go run mksyscall_aix_ppc.go -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="go run mksyscall_aix_ppc64.go -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="go run mksysnum.go $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
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mktypes="GOARCH=$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="go run mksysnum.go $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
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mktypes="GOARCH=$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="go run mksysnum.go $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
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mktypes="GOARCH=$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="go run mksysnum.go $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
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mktypes="GOARCH=$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="$mkerrors -m64"
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mksyscall="go run mksyscall.go -dragonfly"
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mksysnum="go run mksysnum.go 'https://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master'"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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freebsd_386)
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mkerrors="$mkerrors -m32"
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mksyscall="go run mksyscall.go -l32"
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mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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freebsd_amd64)
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mkerrors="$mkerrors -m64"
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mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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freebsd_arm)
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mkerrors="$mkerrors"
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mksyscall="go run mksyscall.go -l32 -arm"
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mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
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# Let the type of C char be signed for making the bare syscall
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# API consistent across platforms.
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mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
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;;
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freebsd_arm64)
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mkerrors="$mkerrors -m64"
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mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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netbsd_386)
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mkerrors="$mkerrors -m32"
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mksyscall="go run mksyscall.go -l32 -netbsd"
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mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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netbsd_amd64)
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mkerrors="$mkerrors -m64"
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mksyscall="go run mksyscall.go -netbsd"
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mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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netbsd_arm)
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mkerrors="$mkerrors"
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mksyscall="go run mksyscall.go -l32 -netbsd -arm"
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mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
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# Let the type of C char be signed for making the bare syscall
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# API consistent across platforms.
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mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
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;;
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netbsd_arm64)
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mkerrors="$mkerrors -m64"
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mksyscall="go run mksyscall.go -netbsd"
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mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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openbsd_386)
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mkerrors="$mkerrors -m32"
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mksyscall="go run mksyscall.go -l32 -openbsd"
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mksysctl="go run mksysctl_openbsd.go"
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mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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openbsd_amd64)
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mkerrors="$mkerrors -m64"
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mksyscall="go run mksyscall.go -openbsd"
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mksysctl="go run mksysctl_openbsd.go"
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mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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openbsd_arm)
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mkerrors="$mkerrors"
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mksyscall="go run mksyscall.go -l32 -openbsd -arm"
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mksysctl="go run mksysctl_openbsd.go"
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mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
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# Let the type of C char be signed for making the bare syscall
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# API consistent across platforms.
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mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
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;;
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openbsd_arm64)
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mkerrors="$mkerrors -m64"
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mksyscall="go run mksyscall.go -openbsd"
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mksysctl="go run mksysctl_openbsd.go"
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mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
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# Let the type of C char be signed for making the bare syscall
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# API consistent across platforms.
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mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
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;;
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solaris_amd64)
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mksyscall="go run mksyscall_solaris.go"
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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 $syscall_goos syscall_darwin_${GOARCH}.1_11.go $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.1_11.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.go";
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# 1.13 and later, syscalls via libSystem (including syscallPtr)
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echo "$mksyscall -tags $GOOS,$GOARCH,go1.13 syscall_darwin.1_13.go |gofmt >zsyscall_$GOOSARCH.1_13.go";
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else
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echo "$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 "$mktypes" ]; then echo "$mktypes types_$GOOS.go | go run mkpost.go > ztypes_$GOOSARCH.go"; fi
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if [ -n "$mkasm" ]; then echo "$mkasm $GOARCH"; fi
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) | $run
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