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// Copyright 2019 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ptrace
import (
"syscall"
"gvisor.dev/gvisor/pkg/abi/linux"
)
// fpRegSet returns the GETREGSET/SETREGSET register set type to be used.
func fpRegSet(useXsave bool) uintptr {
if useXsave {
return linux.NT_X86_XSTATE
}
return linux.NT_PRFPREG
}
func stackPointer(r *syscall.PtraceRegs) uintptr {
return uintptr(r.Rsp)
}
// x86 use the fs_base register to store the TLS pointer which can be
// get/set in "func (t *thread) get/setRegs(regs *syscall.PtraceRegs)".
// So both of the get/setTLS() operations are noop here.
// getTLS gets the thread local storage register.
func (t *thread) getTLS(tls *uint64) error {
return nil
}
// setTLS sets the thread local storage register.
func (t *thread) setTLS(tls *uint64) error {
return nil
}
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