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unix: fix Pause on linux-arm64

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Pause is a legacy syscall not available on linux-arm64. Use ppoll with
all args as 0 to emulate - this is the way musl libc does Pause when the
pause syscall isn't available.

With the changes in syscall_linux* and regenerating zsyscall_linux*,
this calling Pause on linux-arm64 works and returns EINTR as expected.

Change-Id: I88236290313f18c742d826e759e86ff260a8b383
Reviewed-on: https://go-review.googlesource.com/22014
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Riku Voipio
2016-04-15 13:58:44 +00:00
committed by Brad Fitzpatrick
parent 324e137580
commit f64b50fbea
15 changed files with 83 additions and 81 deletions
Download Patch File Download Diff File Expand all files Collapse all files
unix/zsyscall_linux_arm.go
+10 -10
View File
@@ -729,16 +729,6 @@ func Nanosleep(time *Timespec, leftover *Timespec) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pause() (err error) {
_, _, e1 := Syscall(SYS_PAUSE, 0, 0, 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func PivotRoot(newroot string, putold string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(newroot)
@@ -1649,6 +1639,16 @@ func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pause() (err error) {
_, _, e1 := Syscall(SYS_PAUSE, 0, 0, 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {