diff options
Diffstat (limited to 'pkg/abi/linux/linux_abi_autogen_unsafe.go')
| -rwxr-xr-x | pkg/abi/linux/linux_abi_autogen_unsafe.go | 794 |
1 files changed, 794 insertions, 0 deletions
diff --git a/pkg/abi/linux/linux_abi_autogen_unsafe.go b/pkg/abi/linux/linux_abi_autogen_unsafe.go index 59290f5a0..69bfe135f 100755 --- a/pkg/abi/linux/linux_abi_autogen_unsafe.go +++ b/pkg/abi/linux/linux_abi_autogen_unsafe.go @@ -14,7 +14,382 @@ import ( // Marshallable types used by this file. var _ marshal.Marshallable = (*RSeqCriticalSection)(nil) +var _ marshal.Marshallable = (*SignalSet)(nil) +var _ marshal.Marshallable = (*Statfs)(nil) +var _ marshal.Marshallable = (*Statx)(nil) +var _ marshal.Marshallable = (*StatxTimestamp)(nil) var _ marshal.Marshallable = (*Timespec)(nil) +var _ marshal.Marshallable = (*Timeval)(nil) +var _ marshal.Marshallable = (*Utime)(nil) + +// SizeBytes implements marshal.Marshallable.SizeBytes. +func (s *Statx) SizeBytes() int { + return 80 + + (*StatxTimestamp)(nil).SizeBytes() + + (*StatxTimestamp)(nil).SizeBytes() + + (*StatxTimestamp)(nil).SizeBytes() + + (*StatxTimestamp)(nil).SizeBytes() +} + +// MarshalBytes implements marshal.Marshallable.MarshalBytes. +func (s *Statx) MarshalBytes(dst []byte) { + usermem.ByteOrder.PutUint32(dst[:4], uint32(s.Mask)) + dst = dst[4:] + usermem.ByteOrder.PutUint32(dst[:4], uint32(s.Blksize)) + dst = dst[4:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.Attributes)) + dst = dst[8:] + usermem.ByteOrder.PutUint32(dst[:4], uint32(s.Nlink)) + dst = dst[4:] + usermem.ByteOrder.PutUint32(dst[:4], uint32(s.UID)) + dst = dst[4:] + usermem.ByteOrder.PutUint32(dst[:4], uint32(s.GID)) + dst = dst[4:] + usermem.ByteOrder.PutUint16(dst[:2], uint16(s.Mode)) + dst = dst[2:] + // Padding: dst[:sizeof(uint16)] ~= uint16(0) + dst = dst[2:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.Ino)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.Size)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.Blocks)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.AttributesMask)) + dst = dst[8:] + s.Atime.MarshalBytes(dst[:s.Atime.SizeBytes()]) + dst = dst[s.Atime.SizeBytes():] + s.Btime.MarshalBytes(dst[:s.Btime.SizeBytes()]) + dst = dst[s.Btime.SizeBytes():] + s.Ctime.MarshalBytes(dst[:s.Ctime.SizeBytes()]) + dst = dst[s.Ctime.SizeBytes():] + s.Mtime.MarshalBytes(dst[:s.Mtime.SizeBytes()]) + dst = dst[s.Mtime.SizeBytes():] + usermem.ByteOrder.PutUint32(dst[:4], uint32(s.RdevMajor)) + dst = dst[4:] + usermem.ByteOrder.PutUint32(dst[:4], uint32(s.RdevMinor)) + dst = dst[4:] + usermem.ByteOrder.PutUint32(dst[:4], uint32(s.DevMajor)) + dst = dst[4:] + usermem.ByteOrder.PutUint32(dst[:4], uint32(s.DevMinor)) + dst = dst[4:] +} + +// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes. +func (s *Statx) UnmarshalBytes(src []byte) { + s.Mask = uint32(usermem.ByteOrder.Uint32(src[:4])) + src = src[4:] + s.Blksize = uint32(usermem.ByteOrder.Uint32(src[:4])) + src = src[4:] + s.Attributes = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.Nlink = uint32(usermem.ByteOrder.Uint32(src[:4])) + src = src[4:] + s.UID = uint32(usermem.ByteOrder.Uint32(src[:4])) + src = src[4:] + s.GID = uint32(usermem.ByteOrder.Uint32(src[:4])) + src = src[4:] + s.Mode = uint16(usermem.ByteOrder.Uint16(src[:2])) + src = src[2:] + // Padding: var _ uint16 ~= src[:sizeof(uint16)] + src = src[2:] + s.Ino = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.Size = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.Blocks = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.AttributesMask = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.Atime.UnmarshalBytes(src[:s.Atime.SizeBytes()]) + src = src[s.Atime.SizeBytes():] + s.Btime.UnmarshalBytes(src[:s.Btime.SizeBytes()]) + src = src[s.Btime.SizeBytes():] + s.Ctime.UnmarshalBytes(src[:s.Ctime.SizeBytes()]) + src = src[s.Ctime.SizeBytes():] + s.Mtime.UnmarshalBytes(src[:s.Mtime.SizeBytes()]) + src = src[s.Mtime.SizeBytes():] + s.RdevMajor = uint32(usermem.ByteOrder.Uint32(src[:4])) + src = src[4:] + s.RdevMinor = uint32(usermem.ByteOrder.Uint32(src[:4])) + src = src[4:] + s.DevMajor = uint32(usermem.ByteOrder.Uint32(src[:4])) + src = src[4:] + s.DevMinor = uint32(usermem.ByteOrder.Uint32(src[:4])) + src = src[4:] +} + +// Packed implements marshal.Marshallable.Packed. +func (s *Statx) Packed() bool { + return s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() +} + +// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. +func (s *Statx) MarshalUnsafe(dst []byte) { + if s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() { + safecopy.CopyIn(dst, unsafe.Pointer(s)) + } else { + s.MarshalBytes(dst) + } +} + +// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. +func (s *Statx) UnmarshalUnsafe(src []byte) { + if s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() { + safecopy.CopyOut(unsafe.Pointer(s), src) + } else { + s.UnmarshalBytes(src) + } +} + +// CopyOut implements marshal.Marshallable.CopyOut. +func (s *Statx) CopyOut(task marshal.Task, addr usermem.Addr) error { + if !s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() { + // Type Statx doesn't have a packed layout in memory, fall back to MarshalBytes. + buf := task.CopyScratchBuffer(s.SizeBytes()) + s.MarshalBytes(buf) + _, err := task.CopyOutBytes(addr, buf) + return err + } + + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + _, err := task.CopyOutBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the CopyOutBytes. + runtime.KeepAlive(s) + return err +} + +// CopyIn implements marshal.Marshallable.CopyIn. +func (s *Statx) CopyIn(task marshal.Task, addr usermem.Addr) error { + if !s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() { + // Type Statx doesn't have a packed layout in memory, fall back to UnmarshalBytes. + buf := task.CopyScratchBuffer(s.SizeBytes()) + _, err := task.CopyInBytes(addr, buf) + if err != nil { + return err + } + s.UnmarshalBytes(buf) + return nil + } + + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + _, err := task.CopyInBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the CopyInBytes. + runtime.KeepAlive(s) + return err +} + +// WriteTo implements io.WriterTo.WriteTo. +func (s *Statx) WriteTo(w io.Writer) (int64, error) { + if !s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() { + // Type Statx doesn't have a packed layout in memory, fall back to MarshalBytes. + buf := make([]byte, s.SizeBytes()) + s.MarshalBytes(buf) + n, err := w.Write(buf) + return int64(n), err + } + + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + len, err := w.Write(buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the Write. + runtime.KeepAlive(s) + return int64(len), err +} + +// SizeBytes implements marshal.Marshallable.SizeBytes. +func (s *Statfs) SizeBytes() int { + return 120 +} + +// MarshalBytes implements marshal.Marshallable.MarshalBytes. +func (s *Statfs) MarshalBytes(dst []byte) { + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.Type)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.BlockSize)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.Blocks)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.BlocksFree)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.BlocksAvailable)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.Files)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.FilesFree)) + dst = dst[8:] + for idx := 0; idx < 2; idx++ { + usermem.ByteOrder.PutUint32(dst[:4], uint32(s.FSID[idx])) + dst = dst[4:] + } + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.NameLength)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.FragmentSize)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.Flags)) + dst = dst[8:] + for idx := 0; idx < 4; idx++ { + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.Spare[idx])) + dst = dst[8:] + } +} + +// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes. +func (s *Statfs) UnmarshalBytes(src []byte) { + s.Type = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.BlockSize = int64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.Blocks = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.BlocksFree = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.BlocksAvailable = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.Files = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.FilesFree = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + for idx := 0; idx < 2; idx++ { + s.FSID[idx] = int32(usermem.ByteOrder.Uint32(src[:4])) + src = src[4:] + } + s.NameLength = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.FragmentSize = int64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.Flags = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + for idx := 0; idx < 4; idx++ { + s.Spare[idx] = uint64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + } +} + +// Packed implements marshal.Marshallable.Packed. +func (s *Statfs) Packed() bool { + return true +} + +// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. +func (s *Statfs) MarshalUnsafe(dst []byte) { + safecopy.CopyIn(dst, unsafe.Pointer(s)) +} + +// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. +func (s *Statfs) UnmarshalUnsafe(src []byte) { + safecopy.CopyOut(unsafe.Pointer(s), src) +} + +// CopyOut implements marshal.Marshallable.CopyOut. +func (s *Statfs) CopyOut(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + _, err := task.CopyOutBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the CopyOutBytes. + runtime.KeepAlive(s) + return err +} + +// CopyIn implements marshal.Marshallable.CopyIn. +func (s *Statfs) CopyIn(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + _, err := task.CopyInBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the CopyInBytes. + runtime.KeepAlive(s) + return err +} + +// WriteTo implements io.WriterTo.WriteTo. +func (s *Statfs) WriteTo(w io.Writer) (int64, error) { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + len, err := w.Write(buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the Write. + runtime.KeepAlive(s) + return int64(len), err +} // SizeBytes implements marshal.Marshallable.SizeBytes. func (r *RSeqCriticalSection) SizeBytes() int { @@ -134,6 +509,106 @@ func (r *RSeqCriticalSection) WriteTo(w io.Writer) (int64, error) { } // SizeBytes implements marshal.Marshallable.SizeBytes. +func (s *SignalSet) SizeBytes() int { + return 8 +} + +// MarshalBytes implements marshal.Marshallable.MarshalBytes. +func (s *SignalSet) MarshalBytes(dst []byte) { + usermem.ByteOrder.PutUint64(dst[:8], uint64(*s)) +} + +// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes. +func (s *SignalSet) UnmarshalBytes(src []byte) { + *s = SignalSet(uint64(usermem.ByteOrder.Uint64(src[:8]))) +} + +// Packed implements marshal.Marshallable.Packed. +func (s *SignalSet) Packed() bool { + // Scalar newtypes are always packed. + return true +} + +// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. +func (s *SignalSet) MarshalUnsafe(dst []byte) { + safecopy.CopyIn(dst, unsafe.Pointer(s)) +} + +// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. +func (s *SignalSet) UnmarshalUnsafe(src []byte) { + safecopy.CopyOut(unsafe.Pointer(s), src) +} + +// CopyOut implements marshal.Marshallable.CopyOut. +func (s *SignalSet) CopyOut(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + _, err := task.CopyOutBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the CopyOutBytes. + runtime.KeepAlive(s) + return err +} + +// CopyIn implements marshal.Marshallable.CopyIn. +func (s *SignalSet) CopyIn(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + _, err := task.CopyInBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the CopyInBytes. + runtime.KeepAlive(s) + return err +} + +// WriteTo implements io.WriterTo.WriteTo. +func (s *SignalSet) WriteTo(w io.Writer) (int64, error) { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + len, err := w.Write(buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the Write. + runtime.KeepAlive(s) + return int64(len), err +} + +// SizeBytes implements marshal.Marshallable.SizeBytes. func (t *Timespec) SizeBytes() int { return 16 } @@ -238,3 +713,322 @@ func (t *Timespec) WriteTo(w io.Writer) (int64, error) { return int64(len), err } +// SizeBytes implements marshal.Marshallable.SizeBytes. +func (t *Timeval) SizeBytes() int { + return 16 +} + +// MarshalBytes implements marshal.Marshallable.MarshalBytes. +func (t *Timeval) MarshalBytes(dst []byte) { + usermem.ByteOrder.PutUint64(dst[:8], uint64(t.Sec)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(t.Usec)) + dst = dst[8:] +} + +// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes. +func (t *Timeval) UnmarshalBytes(src []byte) { + t.Sec = int64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + t.Usec = int64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] +} + +// Packed implements marshal.Marshallable.Packed. +func (t *Timeval) Packed() bool { + return true +} + +// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. +func (t *Timeval) MarshalUnsafe(dst []byte) { + safecopy.CopyIn(dst, unsafe.Pointer(t)) +} + +// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. +func (t *Timeval) UnmarshalUnsafe(src []byte) { + safecopy.CopyOut(unsafe.Pointer(t), src) +} + +// CopyOut implements marshal.Marshallable.CopyOut. +func (t *Timeval) CopyOut(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on t. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on t. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(t) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by t's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = t.SizeBytes() + hdr.Cap = t.SizeBytes() + + _, err := task.CopyOutBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that t + // must live until after the CopyOutBytes. + runtime.KeepAlive(t) + return err +} + +// CopyIn implements marshal.Marshallable.CopyIn. +func (t *Timeval) CopyIn(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on t. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on t. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(t) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by t's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = t.SizeBytes() + hdr.Cap = t.SizeBytes() + + _, err := task.CopyInBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that t + // must live until after the CopyInBytes. + runtime.KeepAlive(t) + return err +} + +// WriteTo implements io.WriterTo.WriteTo. +func (t *Timeval) WriteTo(w io.Writer) (int64, error) { + // Bypass escape analysis on t. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on t. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(t) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by t's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = t.SizeBytes() + hdr.Cap = t.SizeBytes() + + len, err := w.Write(buf) + // Since we bypassed the compiler's escape analysis, indicate that t + // must live until after the Write. + runtime.KeepAlive(t) + return int64(len), err +} + +// SizeBytes implements marshal.Marshallable.SizeBytes. +func (s *StatxTimestamp) SizeBytes() int { + return 16 +} + +// MarshalBytes implements marshal.Marshallable.MarshalBytes. +func (s *StatxTimestamp) MarshalBytes(dst []byte) { + usermem.ByteOrder.PutUint64(dst[:8], uint64(s.Sec)) + dst = dst[8:] + usermem.ByteOrder.PutUint32(dst[:4], uint32(s.Nsec)) + dst = dst[4:] + // Padding: dst[:sizeof(int32)] ~= int32(0) + dst = dst[4:] +} + +// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes. +func (s *StatxTimestamp) UnmarshalBytes(src []byte) { + s.Sec = int64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + s.Nsec = uint32(usermem.ByteOrder.Uint32(src[:4])) + src = src[4:] + // Padding: var _ int32 ~= src[:sizeof(int32)] + src = src[4:] +} + +// Packed implements marshal.Marshallable.Packed. +func (s *StatxTimestamp) Packed() bool { + return true +} + +// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. +func (s *StatxTimestamp) MarshalUnsafe(dst []byte) { + safecopy.CopyIn(dst, unsafe.Pointer(s)) +} + +// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. +func (s *StatxTimestamp) UnmarshalUnsafe(src []byte) { + safecopy.CopyOut(unsafe.Pointer(s), src) +} + +// CopyOut implements marshal.Marshallable.CopyOut. +func (s *StatxTimestamp) CopyOut(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + _, err := task.CopyOutBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the CopyOutBytes. + runtime.KeepAlive(s) + return err +} + +// CopyIn implements marshal.Marshallable.CopyIn. +func (s *StatxTimestamp) CopyIn(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + _, err := task.CopyInBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the CopyInBytes. + runtime.KeepAlive(s) + return err +} + +// WriteTo implements io.WriterTo.WriteTo. +func (s *StatxTimestamp) WriteTo(w io.Writer) (int64, error) { + // Bypass escape analysis on s. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on s. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(s) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by s's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = s.SizeBytes() + hdr.Cap = s.SizeBytes() + + len, err := w.Write(buf) + // Since we bypassed the compiler's escape analysis, indicate that s + // must live until after the Write. + runtime.KeepAlive(s) + return int64(len), err +} + +// SizeBytes implements marshal.Marshallable.SizeBytes. +func (u *Utime) SizeBytes() int { + return 16 +} + +// MarshalBytes implements marshal.Marshallable.MarshalBytes. +func (u *Utime) MarshalBytes(dst []byte) { + usermem.ByteOrder.PutUint64(dst[:8], uint64(u.Actime)) + dst = dst[8:] + usermem.ByteOrder.PutUint64(dst[:8], uint64(u.Modtime)) + dst = dst[8:] +} + +// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes. +func (u *Utime) UnmarshalBytes(src []byte) { + u.Actime = int64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] + u.Modtime = int64(usermem.ByteOrder.Uint64(src[:8])) + src = src[8:] +} + +// Packed implements marshal.Marshallable.Packed. +func (u *Utime) Packed() bool { + return true +} + +// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. +func (u *Utime) MarshalUnsafe(dst []byte) { + safecopy.CopyIn(dst, unsafe.Pointer(u)) +} + +// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. +func (u *Utime) UnmarshalUnsafe(src []byte) { + safecopy.CopyOut(unsafe.Pointer(u), src) +} + +// CopyOut implements marshal.Marshallable.CopyOut. +func (u *Utime) CopyOut(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on u. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on u. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(u) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by u's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = u.SizeBytes() + hdr.Cap = u.SizeBytes() + + _, err := task.CopyOutBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that u + // must live until after the CopyOutBytes. + runtime.KeepAlive(u) + return err +} + +// CopyIn implements marshal.Marshallable.CopyIn. +func (u *Utime) CopyIn(task marshal.Task, addr usermem.Addr) error { + // Bypass escape analysis on u. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on u. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(u) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by u's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = u.SizeBytes() + hdr.Cap = u.SizeBytes() + + _, err := task.CopyInBytes(addr, buf) + // Since we bypassed the compiler's escape analysis, indicate that u + // must live until after the CopyInBytes. + runtime.KeepAlive(u) + return err +} + +// WriteTo implements io.WriterTo.WriteTo. +func (u *Utime) WriteTo(w io.Writer) (int64, error) { + // Bypass escape analysis on u. The no-op arithmetic operation on the + // pointer makes the compiler think val doesn't depend on u. + // See src/runtime/stubs.go:noescape() in the golang toolchain. + ptr := unsafe.Pointer(u) + val := uintptr(ptr) + val = val^0 + + // Construct a slice backed by u's underlying memory. + var buf []byte + hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf)) + hdr.Data = val + hdr.Len = u.SizeBytes() + hdr.Cap = u.SizeBytes() + + len, err := w.Write(buf) + // Since we bypassed the compiler's escape analysis, indicate that u + // must live until after the Write. + runtime.KeepAlive(u) + return int64(len), err +} + |