mirror of
https://github.com/beego/bee.git
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275 lines
9.0 KiB
Bash
275 lines
9.0 KiB
Bash
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#!/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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# The unix package provides access to the raw system call
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# interface of the underlying operating system. Porting Go to
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# a new architecture/operating system combination requires
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# some manual effort, though there are tools that automate
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# much of the process. The auto-generated files have names
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# beginning with z.
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#
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# This script runs or (given -n) prints suggested commands to generate z files
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# for the current system. Running those commands is not automatic.
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# This script is documentation more than anything else.
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#
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# * asm_${GOOS}_${GOARCH}.s
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#
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# This hand-written assembly file implements system call dispatch.
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# There are three entry points:
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#
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# func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
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# func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr);
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# func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
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#
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# The first and second are the standard ones; they differ only in
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# how many arguments can be passed to the kernel.
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# The third is for low-level use by the ForkExec wrapper;
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# unlike the first two, it does not call into the scheduler to
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# let it know that a system call is running.
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#
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# * syscall_${GOOS}.go
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#
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# This hand-written Go file implements system calls that need
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# special handling and lists "//sys" comments giving prototypes
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# for ones that can be auto-generated. Mksyscall reads those
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# comments to generate the stubs.
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#
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# * syscall_${GOOS}_${GOARCH}.go
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#
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# Same as syscall_${GOOS}.go except that it contains code specific
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# to ${GOOS} on one particular architecture.
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#
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# * types_${GOOS}.c
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#
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# This hand-written C file includes standard C headers and then
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# creates typedef or enum names beginning with a dollar sign
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# (use of $ in variable names is a gcc extension). The hardest
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# part about preparing this file is figuring out which headers to
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# include and which symbols need to be #defined to get the
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# actual data structures that pass through to the kernel system calls.
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# Some C libraries present alternate versions for binary compatibility
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# and translate them on the way in and out of system calls, but
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# there is almost always a #define that can get the real ones.
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# See types_darwin.c and types_linux.c for examples.
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#
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# * zerror_${GOOS}_${GOARCH}.go
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#
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# This machine-generated file defines the system's error numbers,
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# error strings, and signal numbers. The generator is "mkerrors.sh".
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# Usually no arguments are needed, but mkerrors.sh will pass its
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# arguments on to godefs.
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#
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# * zsyscall_${GOOS}_${GOARCH}.go
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#
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# Generated by mksyscall.pl; see syscall_${GOOS}.go above.
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#
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# * zsysnum_${GOOS}_${GOARCH}.go
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#
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# Generated by mksysnum_${GOOS}.
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#
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# * ztypes_${GOOS}_${GOARCH}.go
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#
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# Generated by godefs; see types_${GOOS}.c above.
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GOOSARCH="${GOOS}_${GOARCH}"
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# defaults
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mksyscall="./mksyscall.pl"
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mkerrors="./mkerrors.sh"
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zerrors="zerrors_$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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run="sh"
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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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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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shift
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esac
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case "$#" in
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0)
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;;
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*)
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echo 'usage: mkall.sh [-n]' 1>&2
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exit 2
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esac
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GOOSARCH_in=syscall_$GOOSARCH.go
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case "$GOOSARCH" in
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_* | *_ | _)
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echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
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exit 1
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;;
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darwin_386)
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mkerrors="$mkerrors -m32"
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mksyscall="./mksyscall.pl -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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;;
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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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;;
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darwin_arm)
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mkerrors="$mkerrors"
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mksysnum="./mksysnum_darwin.pl /usr/include/sys/syscall.h"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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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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;;
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dragonfly_386)
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mkerrors="$mkerrors -m32"
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mksyscall="./mksyscall.pl -l32 -dragonfly"
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mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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dragonfly_amd64)
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mkerrors="$mkerrors -m64"
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mksyscall="./mksyscall.pl -dragonfly"
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mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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freebsd_386)
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mkerrors="$mkerrors -m32"
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mksyscall="./mksyscall.pl -l32"
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mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
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mktypes="GOARCH=$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="$mkerrors"
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mksyscall="./mksyscall.pl -l32 -arm"
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mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
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# Let the type of C char be singed for making the bare syscall
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# API consistent across over platforms.
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mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
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;;
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linux_386)
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mkerrors="$mkerrors -m32"
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mksyscall="./mksyscall.pl -l32"
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mksysnum="./mksysnum_linux.pl /usr/include/asm/unistd_32.h"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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linux_amd64)
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unistd_h=$(ls -1 /usr/include/asm/unistd_64.h /usr/include/x86_64-linux-gnu/asm/unistd_64.h 2>/dev/null | head -1)
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if [ "$unistd_h" = "" ]; then
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echo >&2 cannot find unistd_64.h
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exit 1
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fi
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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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linux_arm)
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mkerrors="$mkerrors"
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mksyscall="./mksyscall.pl -l32 -arm"
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mksysnum="curl -s 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/plain/arch/arm/include/uapi/asm/unistd.h' | ./mksysnum_linux.pl -"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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linux_arm64)
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unistd_h=$(ls -1 /usr/include/asm/unistd.h /usr/include/asm-generic/unistd.h 2>/dev/null | head -1)
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if [ "$unistd_h" = "" ]; then
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echo >&2 cannot find unistd_64.h
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exit 1
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fi
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mksysnum="./mksysnum_linux.pl $unistd_h"
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# Let the type of C char be singed for making the bare syscall
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# API consistent across over platforms.
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mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
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;;
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linux_ppc64)
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GOOSARCH_in=syscall_linux_ppc64x.go
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unistd_h=/usr/include/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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linux_ppc64le)
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GOOSARCH_in=syscall_linux_ppc64x.go
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unistd_h=/usr/include/powerpc64le-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="$mkerrors -m32"
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mksyscall="./mksyscall.pl -l32 -netbsd"
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mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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netbsd_amd64)
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mkerrors="$mkerrors -m64"
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mksyscall="./mksyscall.pl -netbsd"
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mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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openbsd_386)
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mkerrors="$mkerrors -m32"
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mksyscall="./mksyscall.pl -l32 -openbsd"
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mksysctl="./mksysctl_openbsd.pl"
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zsysctl="zsysctl_openbsd.go"
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mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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openbsd_amd64)
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mkerrors="$mkerrors -m64"
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mksyscall="./mksyscall.pl -openbsd"
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mksysctl="./mksysctl_openbsd.pl"
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zsysctl="zsysctl_openbsd.go"
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mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
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mktypes="GOARCH=$GOARCH go tool cgo -godefs"
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;;
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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 echo "$mksyscall $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go"; fi
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;;
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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 "echo // +build $GOARCH,$GOOS > ztypes_$GOOSARCH.go";
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echo "$mktypes types_$GOOS.go | gofmt >>ztypes_$GOOSARCH.go";
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fi
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) | $run
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