Update vendors

vendor/github.com/derekparker/delve/pkg/proc/linutil/auxv.go

@@ -0,0 +1,39 @@
+package linutil
+
+import (
+	"bytes"
+	"encoding/binary"
+)
+
+const (
+	_AT_NULL_AMD64  = 0
+	_AT_ENTRY_AMD64 = 9
+)
+
+// EntryPointFromAuxv searches the elf auxiliary vector for the entry point
+// address.
+// For a description of the auxiliary vector (auxv) format see:
+// System V Application Binary Interface, AMD64 Architecture Processor
+// Supplement, section 3.4.3
+func EntryPointFromAuxvAMD64(auxv []byte) uint64 {
+	rd := bytes.NewBuffer(auxv)
+
+	for {
+		var tag, val uint64
+		err := binary.Read(rd, binary.LittleEndian, &tag)
+		if err != nil {
+			return 0
+		}
+		err = binary.Read(rd, binary.LittleEndian, &val)
+		if err != nil {
+			return 0
+		}
+
+		switch tag {
+		case _AT_NULL_AMD64:
+			return 0
+		case _AT_ENTRY_AMD64:
+			return val
+		}
+	}
+}

vendor/github.com/derekparker/delve/pkg/proc/linutil/doc.go

@@ -0,0 +1,4 @@
+// This package contains functions and data structures used by both the
+// linux implementation of the native backend and the core backend to deal
+// with structures used by the linux kernel.
+package linutil