Example #1
0
// PackageVariables returns the name, value, and type of all package variables in the application.
func (scope *EvalScope) PackageVariables(cfg LoadConfig) ([]*Variable, error) {
	var vars []*Variable
	reader := scope.DwarfReader()

	var utypoff dwarf.Offset
	utypentry, err := reader.SeekToTypeNamed("<unspecified>")
	if err == nil {
		utypoff = utypentry.Offset
	}

	for entry, err := reader.NextPackageVariable(); entry != nil; entry, err = reader.NextPackageVariable() {
		if err != nil {
			return nil, err
		}

		if typoff, ok := entry.Val(dwarf.AttrType).(dwarf.Offset); !ok || typoff == utypoff {
			continue
		}

		// Ignore errors trying to extract values
		val, err := scope.extractVariableFromEntry(entry, cfg)
		if err != nil {
			continue
		}
		vars = append(vars, val)
	}

	return vars, nil
}
Example #2
0
func (scope *EvalScope) packageVarAddr(name string) (*Variable, error) {
	reader := scope.DwarfReader()
	for entry, err := reader.NextPackageVariable(); entry != nil; entry, err = reader.NextPackageVariable() {
		if err != nil {
			return nil, err
		}

		n, ok := entry.Val(dwarf.AttrName).(string)
		if !ok {
			continue
		}

		if n == name {
			return scope.extractVarInfoFromEntry(entry, reader)
		}
	}
	return nil, fmt.Errorf("could not find symbol value for %s", name)
}
Example #3
0
// PackageVariables returns the name, value, and type of all package variables in the application.
func (scope *EvalScope) PackageVariables() ([]*Variable, error) {
	var vars []*Variable
	reader := scope.DwarfReader()

	for entry, err := reader.NextPackageVariable(); entry != nil; entry, err = reader.NextPackageVariable() {
		if err != nil {
			return nil, err
		}

		// Ignore errors trying to extract values
		val, err := scope.extractVariableFromEntry(entry)
		if err != nil {
			continue
		}
		vars = append(vars, val)
	}

	return vars, nil
}
Example #4
0
func (thread *Thread) EvalPackageVariable(name string) (*Variable, error) {
	reader := thread.dbp.DwarfReader()

	for entry, err := reader.NextPackageVariable(); entry != nil; entry, err = reader.NextPackageVariable() {
		if err != nil {
			return nil, err
		}

		n, ok := entry.Val(dwarf.AttrName).(string)
		if !ok {
			continue
		}

		if n == name {
			return thread.extractVariableFromEntry(entry)
		}
	}

	return nil, fmt.Errorf("could not find symbol value for %s", name)
}
Example #5
0
// PackageVariables returns the name, value, and type of all package variables in the application.
func (thread *Thread) PackageVariables() ([]*Variable, error) {
	reader := thread.dbp.DwarfReader()

	vars := make([]*Variable, 0)

	for entry, err := reader.NextPackageVariable(); entry != nil; entry, err = reader.NextPackageVariable() {
		if err != nil {
			return nil, err
		}

		// Ignore errors trying to extract values
		val, err := thread.extractVariableFromEntry(entry)
		if err != nil {
			continue
		}
		vars = append(vars, val)
	}

	return vars, nil
}
Example #6
0
func (dbp *Process) EvalPackageVariable(name string) (*Variable, error) {
	reader := dbp.DwarfReader()
	scope := &EvalScope{Thread: dbp.CurrentThread, PC: 0, CFA: 0}

	for entry, err := reader.NextPackageVariable(); entry != nil; entry, err = reader.NextPackageVariable() {
		if err != nil {
			return nil, err
		}

		n, ok := entry.Val(dwarf.AttrName).(string)
		if !ok {
			continue
		}

		if n == name {
			return scope.extractVariableFromEntry(entry)
		}
	}

	return nil, fmt.Errorf("could not find symbol value for %s", name)
}