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unix: add PidfdSendSignal on Linux

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This completes the pidfd_* family of syscalls and adds a test to verify that a
child process can be terminated using the new PidfdSendSignal function.

Change-Id: I71f6a1e26518f513731e20afef02030462e9a2c0
Reviewed-on: https://go-review.googlesource.com/c/sys/+/393794
Trust: Matt Layher <mdlayher@gmail.com>
Run-TryBot: Matt Layher <mdlayher@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Matt Layher
2022-03-19 13:42:39 +00:00
parent 2edf467146
commit a9b59b0215
18 changed files with 162 additions and 0 deletions
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unix/zsyscall_linux.go
+10
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@@ -1992,6 +1992,16 @@ func PidfdGetfd(pidfd int, targetfd int, flags int) (fd int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func PidfdSendSignal(pidfd int, sig Signal, info *Siginfo, flags int) (err error) {
_, _, e1 := Syscall6(SYS_PIDFD_SEND_SIGNAL, uintptr(pidfd), uintptr(sig), uintptr(unsafe.Pointer(info)), uintptr(flags), 0, 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func shmat(id int, addr uintptr, flag int) (ret uintptr, err error) {
r0, _, e1 := Syscall(SYS_SHMAT, uintptr(id), uintptr(addr), uintptr(flag))
ret = uintptr(r0)