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package native
import (
"debug/elf"
"fmt"
"syscall"
"unsafe"
sys "golang.org/x/sys/unix"
"github.com/go-delve/delve/pkg/proc"
"github.com/go-delve/delve/pkg/proc/linutil"
)
func (t *nativeThread) fpRegisters() ([]proc.Register, []byte, error) {
var regs []proc.Register
var fpregs linutil.PPC64LEPtraceFpRegs
var err error
t.dbp.execPtraceFunc(func() { fpregs.Fp, err = ptraceGetFpRegset(t.ID) })
regs = fpregs.Decode()
if err != nil {
err = fmt.Errorf("could not get floating point registers: %v", err.Error())
}
return regs, fpregs.Fp, err
}
func (t *nativeThread) restoreRegisters(savedRegs proc.Registers) error {
sr := savedRegs.(*linutil.PPC64LERegisters)
var restoreRegistersErr error
t.dbp.execPtraceFunc(func() {
restoreRegistersErr = ptraceSetGRegs(t.ID, sr.Regs)
if restoreRegistersErr != syscall.Errno(0) && restoreRegistersErr != nil {
return
}
if sr.Fpregset != nil {
iov := sys.Iovec{Base: &sr.Fpregset[0], Len: _PPC64LE_FPREGS_SIZE}
_, _, restoreRegistersErr = syscall.Syscall6(syscall.SYS_PTRACE, sys.PTRACE_SETREGSET, uintptr(t.ID), uintptr(elf.NT_FPREGSET), uintptr(unsafe.Pointer(&iov)), 0, 0)
}
})
if restoreRegistersErr == syscall.Errno(0) {
restoreRegistersErr = nil
}
return restoreRegistersErr
}
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