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-rw-r--r--pkg/abi/linux/linux_abi_autogen_unsafe.go138
-rw-r--r--pkg/abi/linux/linux_state_autogen.go35
-rw-r--r--pkg/abi/linux/signal.go15
3 files changed, 188 insertions, 0 deletions
diff --git a/pkg/abi/linux/linux_abi_autogen_unsafe.go b/pkg/abi/linux/linux_abi_autogen_unsafe.go
index b77c2c972..b9f7f24da 100644
--- a/pkg/abi/linux/linux_abi_autogen_unsafe.go
+++ b/pkg/abi/linux/linux_abi_autogen_unsafe.go
@@ -101,6 +101,7 @@ var _ marshal.Marshallable = (*Sembuf)(nil)
var _ marshal.Marshallable = (*ShmInfo)(nil)
var _ marshal.Marshallable = (*ShmParams)(nil)
var _ marshal.Marshallable = (*ShmidDS)(nil)
+var _ marshal.Marshallable = (*SigAction)(nil)
var _ marshal.Marshallable = (*Sigevent)(nil)
var _ marshal.Marshallable = (*SignalSet)(nil)
var _ marshal.Marshallable = (*SignalfdSiginfo)(nil)
@@ -10809,6 +10810,143 @@ func (s *ShmidDS) WriteTo(writer io.Writer) (int64, error) {
}
// SizeBytes implements marshal.Marshallable.SizeBytes.
+func (s *SigAction) SizeBytes() int {
+ return 24 +
+ (*SignalSet)(nil).SizeBytes()
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (s *SigAction) MarshalBytes(dst []byte) {
+ hostarch.ByteOrder.PutUint64(dst[:8], uint64(s.Handler))
+ dst = dst[8:]
+ hostarch.ByteOrder.PutUint64(dst[:8], uint64(s.Flags))
+ dst = dst[8:]
+ hostarch.ByteOrder.PutUint64(dst[:8], uint64(s.Restorer))
+ dst = dst[8:]
+ s.Mask.MarshalBytes(dst[:s.Mask.SizeBytes()])
+ dst = dst[s.Mask.SizeBytes():]
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (s *SigAction) UnmarshalBytes(src []byte) {
+ s.Handler = uint64(hostarch.ByteOrder.Uint64(src[:8]))
+ src = src[8:]
+ s.Flags = uint64(hostarch.ByteOrder.Uint64(src[:8]))
+ src = src[8:]
+ s.Restorer = uint64(hostarch.ByteOrder.Uint64(src[:8]))
+ src = src[8:]
+ s.Mask.UnmarshalBytes(src[:s.Mask.SizeBytes()])
+ src = src[s.Mask.SizeBytes():]
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (s *SigAction) Packed() bool {
+ return s.Mask.Packed()
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (s *SigAction) MarshalUnsafe(dst []byte) {
+ if s.Mask.Packed() {
+ gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(s), uintptr(s.SizeBytes()))
+ } else {
+ // Type SigAction doesn't have a packed layout in memory, fallback to MarshalBytes.
+ s.MarshalBytes(dst)
+ }
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (s *SigAction) UnmarshalUnsafe(src []byte) {
+ if s.Mask.Packed() {
+ gohacks.Memmove(unsafe.Pointer(s), unsafe.Pointer(&src[0]), uintptr(s.SizeBytes()))
+ } else {
+ // Type SigAction doesn't have a packed layout in memory, fallback to UnmarshalBytes.
+ s.UnmarshalBytes(src)
+ }
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (s *SigAction) CopyOutN(cc marshal.CopyContext, addr hostarch.Addr, limit int) (int, error) {
+ if !s.Mask.Packed() {
+ // Type SigAction doesn't have a packed layout in memory, fall back to MarshalBytes.
+ buf := cc.CopyScratchBuffer(s.SizeBytes()) // escapes: okay.
+ s.MarshalBytes(buf) // escapes: fallback.
+ return cc.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+ }
+
+ // Construct a slice backed by dst's underlying memory.
+ var buf []byte
+ hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+ hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(s)))
+ hdr.Len = s.SizeBytes()
+ hdr.Cap = s.SizeBytes()
+
+ length, err := cc.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+ // Since we bypassed the compiler's escape analysis, indicate that s
+ // must live until the use above.
+ runtime.KeepAlive(s) // escapes: replaced by intrinsic.
+ return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (s *SigAction) CopyOut(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
+ return s.CopyOutN(cc, addr, s.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (s *SigAction) CopyIn(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
+ if !s.Mask.Packed() {
+ // Type SigAction doesn't have a packed layout in memory, fall back to UnmarshalBytes.
+ buf := cc.CopyScratchBuffer(s.SizeBytes()) // escapes: okay.
+ length, err := cc.CopyInBytes(addr, buf) // escapes: okay.
+ // Unmarshal unconditionally. If we had a short copy-in, this results in a
+ // partially unmarshalled struct.
+ s.UnmarshalBytes(buf) // escapes: fallback.
+ return length, err
+ }
+
+ // Construct a slice backed by dst's underlying memory.
+ var buf []byte
+ hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+ hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(s)))
+ hdr.Len = s.SizeBytes()
+ hdr.Cap = s.SizeBytes()
+
+ length, err := cc.CopyInBytes(addr, buf) // escapes: okay.
+ // Since we bypassed the compiler's escape analysis, indicate that s
+ // must live until the use above.
+ runtime.KeepAlive(s) // escapes: replaced by intrinsic.
+ return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (s *SigAction) WriteTo(writer io.Writer) (int64, error) {
+ if !s.Mask.Packed() {
+ // Type SigAction doesn't have a packed layout in memory, fall back to MarshalBytes.
+ buf := make([]byte, s.SizeBytes())
+ s.MarshalBytes(buf)
+ length, err := writer.Write(buf)
+ return int64(length), err
+ }
+
+ // Construct a slice backed by dst's underlying memory.
+ var buf []byte
+ hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+ hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(s)))
+ hdr.Len = s.SizeBytes()
+ hdr.Cap = s.SizeBytes()
+
+ length, err := writer.Write(buf)
+ // Since we bypassed the compiler's escape analysis, indicate that s
+ // must live until the use above.
+ runtime.KeepAlive(s) // escapes: replaced by intrinsic.
+ return int64(length), err
+}
+
+// SizeBytes implements marshal.Marshallable.SizeBytes.
func (s *Sigevent) SizeBytes() int {
return 20 +
1*44
diff --git a/pkg/abi/linux/linux_state_autogen.go b/pkg/abi/linux/linux_state_autogen.go
index 780edd2ee..6ff83b358 100644
--- a/pkg/abi/linux/linux_state_autogen.go
+++ b/pkg/abi/linux/linux_state_autogen.go
@@ -74,6 +74,40 @@ func (b *BPFInstruction) StateLoad(stateSourceObject state.Source) {
stateSourceObject.Load(3, &b.K)
}
+func (s *SigAction) StateTypeName() string {
+ return "pkg/abi/linux.SigAction"
+}
+
+func (s *SigAction) StateFields() []string {
+ return []string{
+ "Handler",
+ "Flags",
+ "Restorer",
+ "Mask",
+ }
+}
+
+func (s *SigAction) beforeSave() {}
+
+// +checklocksignore
+func (s *SigAction) StateSave(stateSinkObject state.Sink) {
+ s.beforeSave()
+ stateSinkObject.Save(0, &s.Handler)
+ stateSinkObject.Save(1, &s.Flags)
+ stateSinkObject.Save(2, &s.Restorer)
+ stateSinkObject.Save(3, &s.Mask)
+}
+
+func (s *SigAction) afterLoad() {}
+
+// +checklocksignore
+func (s *SigAction) StateLoad(stateSourceObject state.Source) {
+ stateSourceObject.Load(0, &s.Handler)
+ stateSourceObject.Load(1, &s.Flags)
+ stateSourceObject.Load(2, &s.Restorer)
+ stateSourceObject.Load(3, &s.Mask)
+}
+
func (c *ControlMessageIPPacketInfo) StateTypeName() string {
return "pkg/abi/linux.ControlMessageIPPacketInfo"
}
@@ -182,6 +216,7 @@ func (w *WindowSize) StateLoad(stateSourceObject state.Source) {
func init() {
state.Register((*IOEvent)(nil))
state.Register((*BPFInstruction)(nil))
+ state.Register((*SigAction)(nil))
state.Register((*ControlMessageIPPacketInfo)(nil))
state.Register((*KernelTermios)(nil))
state.Register((*WindowSize)(nil))
diff --git a/pkg/abi/linux/signal.go b/pkg/abi/linux/signal.go
index 6ca57ffbb..cedae3014 100644
--- a/pkg/abi/linux/signal.go
+++ b/pkg/abi/linux/signal.go
@@ -227,6 +227,21 @@ type Sigevent struct {
UnRemainder [44]byte
}
+// LINT.IfChange
+
+// SigAction represents struct sigaction.
+//
+// +marshal
+// +stateify savable
+type SigAction struct {
+ Handler uint64
+ Flags uint64
+ Restorer uint64
+ Mask SignalSet
+}
+
+// LINT.ThenChange(../../safecopy/safecopy_unsafe.go)
+
// Possible values for Sigevent.Notify, aka struct sigevent::sigev_notify.
const (
SIGEV_SIGNAL = 0
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 02:32:32 +0000