func InfoScopeSubcmd(args []string) {
fr := gub.CurFrame()
scope := fr.Scope()
if scope == nil {
gub.Errmsg("No scope recorded here")
return
}
count := 0
if len(args) == 3 {
var err error
count, err = gub.GetInt(args[2],
"count", 0, gub.MAXSTACKSHOW)
if err != nil {
return
}
}
typescope := scope.Scope
for i := 0; i < count; i++ {
typescope = typescope.Parent()
if typescope == nil {
gub.Errmsg("There are only %d nested scopes", i)
return
}
scope = fr.Fn().Pkg.TypeScope2Scope[typescope]
if scope == nil {
gub.Errmsg("No parent scope; There are only %d nested scopes", i)
return
}
}
gub.Section("scope number %d", scope.ScopeId())
gub.Msg("%s", typescope)
}
// InfoBreakpointSubcmd implements the debugger command:
// info breakpoint
//
// This command shows status of user-settable breakpoints. If no
// breakpoint numbers are given, the show all breakpoints. Otherwise
// only those breakpoints listed are shown and the order given.
//
// The "Disp" column contains one of "keep", "del", the disposition of
// the breakpoint after it gets hit.
//
// The "enb" column indicates whether the breakpoint is enabled.
//
// The "Where" column indicates where the breakpoint is located.
// Status of user-settable breakpoints.
func InfoBreakpointSubcmd(args []string) {
if gub.IsBreakpointEmpty() {
gub.Msg("No breakpoints set")
return
}
bpLen := len(gub.Breakpoints)
if bpLen-gub.BrkptsDeleted == 0 {
gub.Msg("No breakpoints.")
}
if len(args) > 2 {
headerShown := false
for _, num := range args[2:] {
if bpNum, err := gub.GetInt(num,
"breakpoint number", 0, bpLen-1); err == nil {
if bp := gub.BreakpointFindById(bpNum); bp != nil {
if !headerShown {
gub.Section("Num Type Disp Enb Where")
headerShown = true
}
gub.Bpprint(*bp)
} else {
gub.Errmsg("Breakpoint %d not found.", bpNum)
}
}
}
} else {
gub.Section("Num Type Disp Enb Where")
for _, bp := range gub.Breakpoints {
if bp.Deleted {
continue
}
gub.Bpprint(*bp)
}
}
}
func DownCommand(args []string) {
count := 1
if len(args) == 2 {
var err error
count, err = gub.GetInt(args[1],
"count", -gub.MAXSTACKSHOW, gub.MAXSTACKSHOW)
if err != nil {
return
}
}
gub.AdjustFrame(-count, false)
}
func BacktraceCommand(args []string) {
count := gub.MAXSTACKSHOW
var err error
if len(args) > 1 {
count, err = gub.GetInt(args[1], "maximum count",
0, gub.MAXSTACKSHOW)
if err != nil {
return
}
}
gub.PrintStack(gub.TopFrame(), count)
}
func JumpCommand(args []string) {
fr := gub.CurFrame()
b := gub.CurBlock()
ic, err := gub.GetInt(args[1],
"instruction number", 0, len(b.Instrs)-1)
if err != nil {
return
}
// compensate for interpreter loop which does ic++ at end of loop body
fr.SetPC(ic - 1)
gub.InCmdLoop = false
}
// shows stack of all goroutines
func GoroutinesCommand(args []string) {
goTops := interp.GetInterpreter().GoTops()
var goNum int
var err error
if len(args) > 1 {
goNum, err = gub.GetInt(args[1],
"goroutine number", 0, len(goTops)-1)
if err != nil {
return
}
gub.PrintGoroutine(goNum, goTops)
return
}
for goNum := range goTops {
gub.PrintGoroutine(goNum, goTops)
}
}
func DisassembleCommand(args []string) {
fr := gub.CurFrame()
myfn := fr.Fn()
if len(args) > 1 {
what := args[1]
if what == "." {
if block := gub.CurBlock(); block != nil {
gub.DisasmBlock(myfn, block.Index, fr.PC())
} else {
gub.Errmsg("Can't get block info here")
}
return
} else if what != "+" {
if fn, err := gub.FuncLookup(what); err == nil && fn != nil {
myfn = fn
} else {
bnum, err := gub.GetInt(args[1],
"block number of function name", 0, len(myfn.Blocks)-1)
if err == nil {
lastBlock := len(myfn.Blocks) - 1
if bnum <= lastBlock {
b := myfn.Blocks[bnum]
if len(args) == 3 {
ic, err := gub.GetUInt(args[2],
"instruction number", 0, uint64(len(b.Instrs)-1))
if err == nil {
gub.DisasmInst(myfn, bnum, ic)
}
} else {
gub.DisasmBlock(myfn, bnum, -1)
}
} else {
gub.Errmsg("Block number should be between 0 and %d; got %d",
lastBlock, bnum)
}
}
return
}
}
} else {
gub.DisasmCurrentInst()
return
}
myfn.WriteTo(os.Stderr)
}
// DeleteCommand implements the debugger command:
// delete [bpnum1 ... ]
// which deletes some breakpoints by breakpoint number
//
// See also "breakpoint", "info break", "enable", and "disable".
func DeleteCommand(args []string) {
for i := 1; i < len(args); i++ {
msg := fmt.Sprintf("breakpoint number for argument %d", i)
bpnum, err := gub.GetInt(args[i], msg, 0, len(gub.Breakpoints)-1)
if err != nil {
continue
}
if gub.BreakpointExists(bpnum) {
if gub.BreakpointDelete(bpnum) {
gub.Msg(" Deleted breakpoint %d", bpnum)
} else {
gub.Errmsg("Trouble deleting breakpoint %d", bpnum)
}
} else {
gub.Errmsg("Breakpoint %d doesn't exist", bpnum)
}
}
}