TODO

Each release
============

- Check Debian BTS
	- bug numbers in changelog
	- mailer off tag to debian bts

- mail exmap-announce

- test on FC4 (FC5?)

- test on ARM (slug)

- check /var/log/messages during make test
	- add to tests themselves?


For 0.20
========

- Build+run on modern systems:
    - current ubuntu (x86_64)
    - current fedora (set up vm)
    - current openwrt (arm)

- Ease installing developer dependencies for each supported platform
    - add ".installed-deps" hidden target, removed by clean
    - add platform detection (ubuntu, redhat, debian, openwrt)


For 0.21
========

- build intermediate format of data
        - to decouple gtk view
        - (flat file? sqlite? how to capture elf info?)
                - how much processing to do?
        - lib with C bindings?
        - review/incorporate exmap console work?

Future
======

- ?? Add CRC checking (then contents checking) to estimate
 how many pages are identical between a group of pids

- is there value in the elf symbol resolution stuff as sep lib?

For 0.10
========

DONE - have 'make exmtool' not depend on gtk/X 

DONE - Change list labels when we select 
	(e.g. maps for process X, maps for all procs)

DONE - Review 'not selected' text as well

DONE - provide resizable columns

DONE - fix seg when clicking checkbox with no lib selected (grey checkbox)

DONE - test 'all procs' works for ELF *symbols* too

DONE - avoid very long cmdlines (see patch from Lubos) 

DONE - Add About dialogue (from button) for shameless self-promotion

DONE - File view should all (and default to) sums over all procs
	DONE - add checkbox (all procs/this proc)

DONE - mad non-linear CPU usage
	- file tab
	- select libqt (used by psi)
	- select /usr/bin/psi process
	- select .texto
	- Looks like sorting on adding to the listbox

DONE - read *dynamic* symbols from ELF files
	- does this do what we need?

DONE - text/fix dump_maps

DONE - merge 0.9 64bit work into trunk (check diffs on trunk...worth keeping?)
	- and getpagesize()
	- maybe start from 0.9 and add in...

DONE - look at the "global memory analysis tool" gmail, some good todos in there

DONE - remove leading _ on buttons

DONE - add keyboard accelerators to buttons

NO - add keyboard accelerators to tabs

DONE - update ELF sections when file changes (proc might be NULL)

OK - are some of the 'sums' with 'all processes' set invalid as sums?

DONE - need to clear all sub-sections when we change something higher up
	- e.g. picking new process clears file
		- but elf sections don't change

DONE - clear symbols when sections change?

NOTABUG? - check .got bug from Lubos
	- add auto test case before fixing
		- pick out ELF section which must have writable > 0

Sometime
========

- cross-propagate file/proc selection between tabs
	- optional?
		- allow optional checkboxes to be set by
		cmdline and/or env var. avoids cfg file?

- cmdline sorting should ignore path

- keep PID? remove pid? father-son sort?
	- can we move some info out of the 'processes' list and into 
	an 'info' area below the list?
	e.g. 'full cmdline', parent pid (clickable!), children, 

- rename 'writable' column
	- improve doc for writable column


- add some kind of in-application help

- add tooltips

- drop most boost::shared_ptr usage. We build large std::lists of these
    things, leading to lots of object creation.
	- e.g. run under gdb, select an ELF section with many symbols and
	sample backtrace (with ctrl-C, bt, c) a few times

- add an icon (does this need gnome?)

- change kernel interface to /proc/<pid>/exmap

- shrink Panes sensibly when window resized (hook signal and even up?)
	- go to 4-way split on resize? (and startup?)
	- or just set 'expand' on panes?

- write data to file, load from file (add a FileSysInfo type)
	- use this to instrument slug
	- also use in main gexmap to reduce mem footprint during analysis?

- memprof shows
	- how much is allocated during reading info?
		- use massif
		- memprof on "write data to file" tool
	- 19Mb allocated
		- 6.5Mb in Vma::add_pages, from vector.push_back
			- consider shrinking class Page?
				- wasting 30 bits/class at the moment on padding
			- could just store 'page index' into the PagePool
				- and have PagePool store the bits
				- warning if they aren't the same on all?
				- also, common case is contig indices
				into PagePool, so could store a 'Range'...
		- 2.5Mb in PagePool::inc_page_count/map[]
		- 0.7Mb in allocated class Vmas
			- could lose the selfptr nonsense
				- maybe drop the shared_ptr stuff entirely?
		- 3.9Mb in File::open_file()
			- open ifstreams!
			- need to close off open fds!
				- reopen if needed

- add dirty column from pte_dirty (suggestion from didier)

- consider having per proc/file in a seperate window (reduce clutter)

- consider byte-sized sizes for smaller items like symbols

- consider adding columns (like 'swapped') and having config file

- command line tool
  - list procs/files with summary
  - specify proc/file and get basic info
  - specify proc/file and list files/procs
  - specify proc+file and list ELF info?
  - specify file/ELF section

- consider handling totals differently
  - best would be something outside of the file/proc tab.
  - a single text string on the bottombar looks ugly
    - multiple labels?
      - too wide
    - perhaps split over two lines or something?
  - even if keep totals in proc list, perhaps add to file too?

- somehow test on 64bit
	- finish sysinfo
		- merge read_vma and read_page_info so can override
		them both in test sysinfo
			- have read /proc/x/maps as protected func
		- write TestNoModuleLinuxSysInfo
			- which reads /proc/x/maps and makes up page info
				- is there a way to make it test-compatible?
				- or skip those tests if in that mode?
		- add a switch (on ENV var?) to enable no-module mode
		for t_exmap
		- test locally
		- test on hp testdrive

- add coverage testing support to makefile
	- better Exmap coverage
	- 	mkdir -p ./coverage
	lcov --directory $STAP_OBJ --zerocounters
	runtest --tool=systemtap
	lcov --directory $STAP_OBJ --capture --output-file ./coverage/stap.info
	genhtml -o ./coverage ./coverage/stap.info

- document non-page-aligned values for files

- try and show thread stack usage
	- maybe additional info from kernel module?

- support earlier kernel versions (no pud_t. See mail from Joaquim)
	- also need to worry about [vdso] name

- we can have a map to a (deleted) file. We'll fail to open this
(d'uh). What problem does this cause? Just a "non elf" file?

- read /proc/k?mem using pfn to show hex contents?
	- I think /dev/mem is what is wanted.
	- shift pfn to get a physical address
	- seek & read /dev/mem to read data

	- add a 'RangeView' to exmap.pl
		- pfns are in Vma, so add 'read_mem_range' to that?

- Find a way to identify glibc [anon] maps as heap

- We are holding an open fd to each Elf file. We probably need it to
seek to read symbols, unless we open/close there (or make it private
and do it in the caller).

- add 'reload'
	- check for memleaks caused by shared_ptr
	- if we do 'reload', functionality then will need to explicitly break
	proc <-> file <-> vma links since the shared_ptr's are refcounting
	won't. (use weak_ptr) (also problems with selfptr nonsense)

- right justify Sizes
	- use %10.2f as the format
	- but then need fixed-width font in text renderer
		- do-able?
		- perhaps change default font for all of it?
		- could pad with leading zeros <ugh>

- doxygen
	- basic doc on all classes
	- need to mark todo's as \todo
	DONE - add TODO generation
	DONE - up and running

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