mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-08-04 02:57:46 +00:00
Ayke van Laethem
86f8778748
Go 1.12 switched to using libSystem.dylib for system calls, because Apple recommends against doing direct system calls that Go 1.11 and earlier did. For more information, see: https://github.com/golang/go/issues/17490 https://developer.apple.com/library/archive/qa/qa1118/_index.html While the old syscall package was relatively easy to support in TinyGo (just implement syscall.Syscall*), this got a whole lot harder with Go 1.12 as all syscalls now go through CGo magic to call the underlying libSystem functions. Therefore, this commit overrides the stdlib syscall package with a custom package that performs calls with libc (libSystem). This may be useful not just for darwin but for other platforms as well that do not place the stable ABI at the syscall boundary like Linux but at the libc boundary. Only a very minimal part of the syscall package has been implemented, to get the tests to pass. More calls can easily be added in the future.
124 lines
2.8 KiB
Go
124 lines
2.8 KiB
Go
// +build avr cortexm
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package syscall
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// Most code here has been copied from the Go sources:
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// https://github.com/golang/go/blob/go1.12/src/syscall/syscall_js.go
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// It has the following copyright note:
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//
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// Copyright 2018 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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// A Signal is a number describing a process signal.
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// It implements the os.Signal interface.
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type Signal int
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const (
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_ Signal = iota
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SIGCHLD
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SIGINT
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SIGKILL
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SIGTRAP
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SIGQUIT
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SIGTERM
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)
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// File system
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const (
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Stdin = 0
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Stdout = 1
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Stderr = 2
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)
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const (
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O_RDONLY = 0
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O_WRONLY = 1
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O_RDWR = 2
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O_CREAT = 0100
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O_CREATE = O_CREAT
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O_TRUNC = 01000
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O_APPEND = 02000
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O_EXCL = 0200
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O_SYNC = 010000
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O_CLOEXEC = 0
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)
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func Getenv(key string) (value string, found bool) {
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return "", false // stub
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}
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func Open(path string, mode int, perm uint32) (fd int, err error) {
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return 0, ENOSYS
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}
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func Read(fd int, p []byte) (n int, err error) {
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return 0, ENOSYS
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}
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func Seek(fd int, offset int64, whence int) (off int64, err error) {
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return 0, ENOSYS
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}
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func Close(fd int) (err error) {
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return ENOSYS
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}
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// Processes
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type WaitStatus uint32
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func (w WaitStatus) Exited() bool { return false }
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func (w WaitStatus) ExitStatus() int { return 0 }
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func (w WaitStatus) Signaled() bool { return false }
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func (w WaitStatus) Signal() Signal { return 0 }
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func (w WaitStatus) CoreDump() bool { return false }
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func (w WaitStatus) Stopped() bool { return false }
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func (w WaitStatus) Continued() bool { return false }
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func (w WaitStatus) StopSignal() Signal { return 0 }
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func (w WaitStatus) TrapCause() int { return 0 }
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// XXX made up
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type Rusage struct {
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Utime Timeval
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Stime Timeval
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}
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// XXX made up
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type ProcAttr struct {
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Dir string
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Env []string
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Files []uintptr
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Sys *SysProcAttr
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}
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type SysProcAttr struct {
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}
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func Getegid() int { return 1 }
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func Geteuid() int { return 1 }
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func Getgid() int { return 1 }
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func Getgroups() ([]int, error) { return []int{1}, nil }
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func Getppid() int { return 2 }
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func Getpid() int { return 3 }
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func Gettimeofday(tv *Timeval) error { return ENOSYS }
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func Getuid() int { return 1 }
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func Kill(pid int, signum Signal) error { return ENOSYS }
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func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
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return 0, ENOSYS
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}
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func StartProcess(argv0 string, argv []string, attr *ProcAttr) (pid int, handle uintptr, err error) {
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return 0, 0, ENOSYS
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}
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func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) {
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return 0, ENOSYS
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}
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type Timeval struct {
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Sec int64
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Usec int64
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}
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