Time_Key    time
    Time_Format %b %d %H:%M:%S

[PARSER]
    Name        glog
    Format      regex
    Regex       ^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source_file>[^ \]]+)\:(?<source_line>\d+)\]\s(?<message>.*)$
    Time_Key    time
    Time_Format %m%d %H:%M:%S.%L

[PARSER]
    Name        network-log
    Format      json
    Time_Key    timestamp

	// BuildID returns the GNU build ID of the file, or an empty string.
	BuildID() string

	// SourceLine reports the source line information for a given
	// address in the file. Due to inlining, the source line information
	// is in general a list of positions representing a call stack,
	// with the leaf function first.
	SourceLine(addr uint64) ([]Frame, error)

	// Symbols returns a list of symbols in the object file.

	// BuildID returns the GNU build ID of the file, or an empty string.
	BuildID() string

	// SourceLine reports the source line information for a given
	// address in the file. Due to inlining, the source line information
	// is in general a list of positions representing a call stack,
	// with the leaf function first.
	SourceLine(addr uint64) ([]Frame, error)

	// Symbols returns a list of symbols in the object file.

	if f.baseErr != nil {
		return 0, f.baseErr
	}
	return addr - f.base, nil
}

func (f *file) BuildID() string {
	return f.buildID
}

func (f *file) SourceLine(addr uint64) ([]plugin.Frame, error) {
	f.baseOnce.Do(func() { f.baseErr = f.computeBase(addr) })
	if f.baseErr != nil {
		return nil, f.baseErr
	}
	return nil, nil
}

func (f *file) Close() error {

	}
	return nil
}

func symbolizeOneMapping(m *profile.Mapping, locs []*profile.Location, obj plugin.ObjFile, addFunction func(*profile.Function) *profile.Function) {
	for _, l := range locs {
		stack, err := obj.SourceLine(l.Address)
		if err != nil || len(stack) == 0 {
			// No answers from addr2line.
			continue
		}

		l.Line = make([]profile.Line, len(stack))
		l.IsFolded = false
		for i, frame := range stack {

}

func (f *file) ObjAddr(addr uint64) (uint64, error) {
	return addr - f.offset, nil
}

func (f *file) BuildID() string {
	// No support for build ID.
	return ""
}

func (f *file) SourceLine(addr uint64) ([]driver.Frame, error) {
	if f.pcln == nil {
		pcln, err := f.file.PCLineTable()
		if err != nil {
			return nil, err
		}
		f.pcln = pcln
	}
	addr -= f.offset

			if i+1 < len(insts) && insts[i+1].Addr > inst.Addr {
				// Extend to next instruction.
				length = int(insts[i+1].Addr - inst.Addr)
			}

			// Get inlined-call-stack for address.
			frames, err := r.obj.SourceLine(addr)
			if err != nil {
				// Construct a frame from disassembler output.
				frames = []plugin.Frame{{Func: inst.Function, File: inst.File, Line: inst.Line}}
			}