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//go:build linux && loong64
// +build linux,loong64
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 (thread *nativeThread) fpRegisters() ([]proc.Register, []byte, error) {
var err error
var loong64_fpregs linutil.LOONG64PtraceFpRegs
thread.dbp.execPtraceFunc(func() { err = ptraceGetFpRegset(thread.ID, &loong64_fpregs) })
fpregs := loong64_fpregs.Decode()
if err != nil {
err = fmt.Errorf("could not get floating point registers: %v", err.Error())
}
return fpregs, loong64_fpregs.Fregs, err
}
func (t *nativeThread) restoreRegisters(savedRegs proc.Registers) error {
var restoreRegistersErr error
sr := savedRegs.(*linutil.LOONG64Registers)
t.dbp.execPtraceFunc(func() {
restoreRegistersErr = ptraceSetGRegs(t.ID, sr.Regs)
if restoreRegistersErr != syscall.Errno(0) {
return
}
if sr.Fpregset != nil {
iov := sys.Iovec{Base: &sr.Fpregset[0], Len: uint64(len(sr.Fpregset))}
_, _, 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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