diff --git a/unix/syscall_linux.go b/unix/syscall_linux.go index e50e4cb2..fad483bb 100644 --- a/unix/syscall_linux.go +++ b/unix/syscall_linux.go @@ -2122,6 +2122,18 @@ func Klogset(typ int, arg int) (err error) { return nil } +// RemoteIovec is Iovec with the pointer replaced with an integer. +// It is used for ProcessVMReadv and ProcessVMWritev, where the pointer +// refers to a location in a different process' address space, which +// would confuse the Go garbage collector. +type RemoteIovec struct { + Base uintptr + Len int +} + +//sys ProcessVMReadv(pid int, localIov []Iovec, remoteIov []RemoteIovec, flags uint) (n int, err error) = SYS_PROCESS_VM_READV +//sys ProcessVMWritev(pid int, localIov []Iovec, remoteIov []RemoteIovec, flags uint) (n int, err error) = SYS_PROCESS_VM_WRITEV + /* * Unimplemented */ diff --git a/unix/zsyscall_linux.go b/unix/zsyscall_linux.go index df217825..f6603de4 100644 --- a/unix/zsyscall_linux.go +++ b/unix/zsyscall_linux.go @@ -1847,6 +1847,52 @@ func openByHandleAt(mountFD int, fh *fileHandle, flags int) (fd int, err error) // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT +func ProcessVMReadv(pid int, localIov []Iovec, remoteIov []RemoteIovec, flags uint) (n int, err error) { + var _p0 unsafe.Pointer + if len(localIov) > 0 { + _p0 = unsafe.Pointer(&localIov[0]) + } else { + _p0 = unsafe.Pointer(&_zero) + } + var _p1 unsafe.Pointer + if len(remoteIov) > 0 { + _p1 = unsafe.Pointer(&remoteIov[0]) + } else { + _p1 = unsafe.Pointer(&_zero) + } + r0, _, e1 := Syscall6(SYS_PROCESS_VM_READV, uintptr(pid), uintptr(_p0), uintptr(len(localIov)), uintptr(_p1), uintptr(len(remoteIov)), uintptr(flags)) + n = int(r0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT + +func ProcessVMWritev(pid int, localIov []Iovec, remoteIov []RemoteIovec, flags uint) (n int, err error) { + var _p0 unsafe.Pointer + if len(localIov) > 0 { + _p0 = unsafe.Pointer(&localIov[0]) + } else { + _p0 = unsafe.Pointer(&_zero) + } + var _p1 unsafe.Pointer + if len(remoteIov) > 0 { + _p1 = unsafe.Pointer(&remoteIov[0]) + } else { + _p1 = unsafe.Pointer(&_zero) + } + r0, _, e1 := Syscall6(SYS_PROCESS_VM_WRITEV, uintptr(pid), uintptr(_p0), uintptr(len(localIov)), uintptr(_p1), uintptr(len(remoteIov)), uintptr(flags)) + n = int(r0) + if e1 != 0 { + err = errnoErr(e1) + } + return +} + +// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT + func pipe2(p *[2]_C_int, flags int) (err error) { _, _, e1 := RawSyscall(SYS_PIPE2, uintptr(unsafe.Pointer(p)), uintptr(flags), 0) if e1 != 0 {