*: Change comments to match common Go standarts (#3221)

pkg/dwarf/util/buf.go

@@ -36,7 +36,7 @@ type dataFormat interface {
 	addrsize() int
 }
 
-// Some parts of DWARF have no data format, e.g., abbrevs.
+// UnknownFormat is a struct for some parts of DWARF that have no data format, e.g., abbrevs.
 type UnknownFormat struct{}
 
 func (u UnknownFormat) version() int {
@@ -66,7 +66,7 @@ func (b *buf) Uint8() uint8 {
 	return val
 }
 
-// Read a varint, which is 7 bits per byte, little endian.
+// Varint reads a varint, which is 7 bits per byte, little endian.
 // the 0x80 bit means read another byte.
 func (b *buf) Varint() (c uint64, bits uint) {
 	for i := 0; i < len(b.data); i++ {
@@ -82,13 +82,13 @@ func (b *buf) Varint() (c uint64, bits uint) {
 	return 0, 0
 }
 
-// Unsigned int is just a varint.
+// Uint is just a varint.
 func (b *buf) Uint() uint64 {
 	x, _ := b.Varint()
 	return x
 }
 
-// Signed int is a sign-extended varint.
+// Int is a sign-extended varint.
 func (b *buf) Int() int64 {
 	ux, bits := b.Varint()
 	x := int64(ux)

pkg/locspec/locations.go

@@ -491,8 +491,8 @@ func SubstitutePath(path string, rules [][2]string) string {
 	// On windows paths returned from headless server are as c:/dir/dir
 	// though os.PathSeparator is '\\'
 
-	separator := "/"                  //make it default
-	if strings.Contains(path, "\\") { //dependent on the path
+	separator := "/"                  // make it default
+	if strings.Contains(path, "\\") { // dependent on the path
 		separator = "\\"
 	}
 	for _, r := range rules {

pkg/proc/arm64_arch.go

@@ -223,7 +223,7 @@ func arm64SwitchStack(it *stackIterator, callFrameRegs *op.DwarfRegisters) bool
 		it.atend = true
 		return true
 	case "crosscall2":
-		//The offsets get from runtime/cgo/asm_arm64.s:10
+		// The offsets get from runtime/cgo/asm_arm64.s:10
 		bpoff := uint64(14)
 		lroff := uint64(15)
 		if producer := it.bi.Producer(); producer != "" && goversion.ProducerAfterOrEqual(producer, 1, 19) {

pkg/proc/arm64_disasm.go

@@ -43,7 +43,7 @@ func arm64AsmDecode(asmInst *AsmInstruction, mem []byte, regs *op.DwarfRegisters
 func resolveCallArgARM64(inst *arm64asm.Inst, instAddr uint64, currentGoroutine bool, regs *op.DwarfRegisters, mem MemoryReadWriter, bininfo *BinaryInfo) *Location {
 	switch inst.Op {
 	case arm64asm.BL, arm64asm.BLR, arm64asm.B, arm64asm.BR:
-		//ok
+		// ok
 	default:
 		return nil
 	}

pkg/proc/core/core.go

@@ -396,7 +396,7 @@ func (t *thread) SetDX(uint64) error {
 	return ErrChangeRegisterCore
 }
 
-// ChangeRegs will always return an error, you cannot
+// SetReg will always return an error, you cannot
 // change register values when debugging core files.
 func (t *thread) SetReg(regNum uint64, reg *op.DwarfRegister) error {
 	return ErrChangeRegisterCore

pkg/proc/interface.go

@@ -64,7 +64,7 @@ type RecordingManipulation interface {
 	// Recorded returns true if the current process is a recording and the path
 	// to the trace directory.
 	Recorded() (recorded bool, tracedir string)
-	// Direction changes execution direction.
+	// ChangeDirection changes execution direction.
 	ChangeDirection(Direction) error
 	// GetDirection returns the current direction of execution.
 	GetDirection() Direction

pkg/proc/linutil/doc.go

@@ -1,4 +1,4 @@
-// This package contains functions and data structures used by both the
+// Package linutil 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

pkg/proc/linutil/regs_arm64_arch.go

@@ -10,11 +10,11 @@ import (
 
 // ARM64Registers is a wrapper for sys.PtraceRegs.
 type ARM64Registers struct {
-	Regs      *ARM64PtraceRegs //general-purpose registers
+	Regs      *ARM64PtraceRegs // general-purpose registers
 	iscgo     bool
 	tpidr_el0 uint64
-	Fpregs    []proc.Register //Formatted floating point registers
-	Fpregset  []byte          //holding all floating point register values
+	Fpregs    []proc.Register // Formatted floating point registers
+	Fpregset  []byte          // holding all floating point register values
 
 	loadFpRegs func(*ARM64Registers) error
 }

pkg/proc/proc_test.go

@@ -1047,7 +1047,7 @@ func TestKill(t *testing.T) {
 		}
 		if runtime.GOOS == "linux" {
 			if runtime.GOARCH == "arm64" {
-				//there is no any sync between signal sended(tracee handled) and open /proc/%d/. It may fail on arm64
+				// there is no any sync between signal sended(tracee handled) and open /proc/%d/. It may fail on arm64
 				return
 			}
 			_, err := os.Open(fmt.Sprintf("/proc/%d/", p.Pid()))
@@ -4693,7 +4693,7 @@ func TestPluginStepping(t *testing.T) {
 
 func TestIssue1601(t *testing.T) {
 	protest.MustHaveCgo(t)
-	//Tests that recursive types involving C qualifiers and typedefs are parsed correctly
+	// Tests that recursive types involving C qualifiers and typedefs are parsed correctly
 	withTestProcess("issue1601", t, func(p *proc.Target, fixture protest.Fixture) {
 		assertNoError(p.Continue(), t, "Continue")
 		evalVariable(p, t, "C.globalq")

pkg/proc/variables.go

@@ -81,7 +81,7 @@ const (
 	// the variable is the return value of a function call and allocated on a
 	// frame that no longer exists)
 	VariableFakeAddress
-	// VariableCPrt means the variable is a C pointer
+	// VariableCPtr means the variable is a C pointer
 	VariableCPtr
 	// VariableCPURegister means this variable is a CPU register.
 	VariableCPURegister