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all: add GOOS=ios

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Introduce GOOS=ios for iOS systems. GOOS=ios matches "darwin"
build tag, like GOOS=android matches "linux" and GOOS=illumos
matches "solaris". Only ios/arm64 is supported (ios/amd64 is
not).

GOOS=ios and GOOS=darwin remain essentially the same at this
point. They will diverge at later time, to differentiate macOS
and iOS.

Uses of GOOS=="darwin" are changed to (GOOS=="darwin" || GOOS=="ios"),
except if it clearly means macOS (e.g. GOOS=="darwin" && GOARCH=="amd64"),
it remains GOOS=="darwin".

Updates #38485.

Change-Id: I4faacdc1008f42434599efb3c3ad90763a83b67c
Reviewed-on: https://go-review.googlesource.com/c/go/+/254740
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
This commit is contained in:
Cherry Zhang 2020-09-16 16:59:58 -04:00
parent bc320fc1f5
commit a413908dd0
99 changed files with 215 additions and 125 deletions
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4
src/os/file_unix.go
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@ -129,7 +129,7 @@ func newFile(fd uintptr, name string, kind newFileKind) *File {
// used with kqueue.
if kind == kindOpenFile {
switch runtime.GOOS {
case "darwin", "dragonfly", "freebsd", "netbsd", "openbsd":
case "darwin", "ios", "dragonfly", "freebsd", "netbsd", "openbsd":
var st syscall.Stat_t
err := ignoringEINTR(func() error {
return syscall.Fstat(fdi, &st)
@ -150,7 +150,7 @@ func newFile(fd uintptr, name string, kind newFileKind) *File {
// on Darwin, kqueue does not work properly with fifos:
// closing the last writer does not cause a kqueue event
// for any readers. See issue #24164.
if runtime.GOOS == "darwin" && typ == syscall.S_IFIFO {
if (runtime.GOOS == "darwin" || runtime.GOOS == "ios") && typ == syscall.S_IFIFO {
pollable = false
}
}