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-rw-r--r--vendor/github.com/cilium/ebpf/internal/sys/ptr.go38
1 files changed, 38 insertions, 0 deletions
diff --git a/vendor/github.com/cilium/ebpf/internal/sys/ptr.go b/vendor/github.com/cilium/ebpf/internal/sys/ptr.go
new file mode 100644
index 000000000..a22100688
--- /dev/null
+++ b/vendor/github.com/cilium/ebpf/internal/sys/ptr.go
@@ -0,0 +1,38 @@
+package sys
+
+import (
+ "unsafe"
+
+ "github.com/cilium/ebpf/internal/unix"
+)
+
+// NewPointer creates a 64-bit pointer from an unsafe Pointer.
+func NewPointer(ptr unsafe.Pointer) Pointer {
+ return Pointer{ptr: ptr}
+}
+
+// NewSlicePointer creates a 64-bit pointer from a byte slice.
+func NewSlicePointer(buf []byte) Pointer {
+ if len(buf) == 0 {
+ return Pointer{}
+ }
+
+ return Pointer{ptr: unsafe.Pointer(&buf[0])}
+}
+
+// NewSlicePointer creates a 64-bit pointer from a byte slice.
+//
+// Useful to assign both the pointer and the length in one go.
+func NewSlicePointerLen(buf []byte) (Pointer, uint32) {
+ return NewSlicePointer(buf), uint32(len(buf))
+}
+
+// NewStringPointer creates a 64-bit pointer from a string.
+func NewStringPointer(str string) Pointer {
+ p, err := unix.BytePtrFromString(str)
+ if err != nil {
+ return Pointer{}
+ }
+
+ return Pointer{ptr: unsafe.Pointer(p)}
+}