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Refactor: split read* into seperate functions

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This commit is contained in:
Derek Parker
2014-08-04 13:25:00 -05:00
parent 2b83a1f3ca
commit a22d563252
1 changed files with 26 additions and 19 deletions
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45
proctl/proctl_linux_amd64.go
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@ -373,33 +373,40 @@ func (dbp *DebuggedProcess) extractValue(instructions []byte, typ interface{}) (
return "", err return "", err
} }
offset := uintptr(int64(regs.Rsp) + off)
switch typ.(type) { switch typ.(type) {
case *dwarf.IntType: case *dwarf.IntType:
addr := uintptr(int64(regs.Rsp) + off) return dbp.readInt(offset)
val, err := dbp.readMemory(addr, 8)
if err != nil {
return "", err
}
n := binary.LittleEndian.Uint64(val)
return strconv.Itoa(int(n)), nil
case *dwarf.FloatType: case *dwarf.FloatType:
var n float64 return dbp.readFloat64(offset)
addr := uintptr(int64(regs.Rsp) + off)
val, err := dbp.readMemory(addr, 8)
if err != nil {
return "", err
}
buf := bytes.NewBuffer(val)
binary.Read(buf, binary.LittleEndian, &n)
return strconv.FormatFloat(n, 'f', -1, 64), nil
} }
return "", fmt.Errorf("could not find value for type %s", typ) return "", fmt.Errorf("could not find value for type %s", typ)
} }
func (dbp *DebuggedProcess) readInt(addr uintptr) (string, error) {
val, err := dbp.readMemory(addr, 8)
if err != nil {
return "", err
}
n := binary.LittleEndian.Uint64(val)
return strconv.Itoa(int(n)), nil
}
func (dbp *DebuggedProcess) readFloat64(addr uintptr) (string, error) {
var n float64
val, err := dbp.readMemory(addr, 8)
if err != nil {
return "", err
}
buf := bytes.NewBuffer(val)
binary.Read(buf, binary.LittleEndian, &n)
return strconv.FormatFloat(n, 'f', -1, 64), nil
}
func (dbp *DebuggedProcess) readMemory(addr uintptr, size uintptr) ([]byte, error) { func (dbp *DebuggedProcess) readMemory(addr uintptr, size uintptr) ([]byte, error) {
buf := make([]byte, size) buf := make([]byte, size)