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//go:build (linux && amd64) || (linux && arm64) || (linux && ppc64le) || (linux && riscv64) || (linux && loong64)
package native
import (
"syscall"
"unsafe"
sys "golang.org/x/sys/unix"
)
// processVmRead calls process_vm_readv
func processVmRead(tid int, addr uintptr, data []byte) (int, error) {
len_iov := uint64(len(data))
local_iov := sys.Iovec{Base: &data[0], Len: len_iov}
remote_iov := remoteIovec{base: addr, len: uintptr(len_iov)}
n, _, err := syscall.Syscall6(sys.SYS_PROCESS_VM_READV, uintptr(tid), uintptr(unsafe.Pointer(&local_iov)), 1, uintptr(unsafe.Pointer(&remote_iov)), 1, 0)
if err != syscall.Errno(0) {
return 0, err
}
return int(n), nil
}
// processVmWrite calls process_vm_writev
func processVmWrite(tid int, addr uintptr, data []byte) (int, error) {
len_iov := uint64(len(data))
local_iov := sys.Iovec{Base: &data[0], Len: len_iov}
remote_iov := remoteIovec{base: addr, len: uintptr(len_iov)}
n, _, err := syscall.Syscall6(sys.SYS_PROCESS_VM_WRITEV, uintptr(tid), uintptr(unsafe.Pointer(&local_iov)), 1, uintptr(unsafe.Pointer(&remote_iov)), 1, 0)
if err != syscall.Errno(0) {
return 0, err
}
return int(n), nil
}
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