view ToDo @ 84:67961454902b

- bigger cleanup in callvm code * changed init of most callvms to reuse code and for consistency * removed unused functions * general changes for consistency * added some missing cconv defines do mode calls - fixed potential buffer overrun on arm64 - fixed sparc and x64 mode setting (only one mode, but wasn't (pointlessly) resettable) - error code handling (dcGetError) changes, flag is now cleared (work still underway) - Changelog update
author cslag
date Wed, 06 Apr 2016 00:21:51 +0200
parents 54930a037e8a
children 8439d9e57d08
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1.0:
----
- !!! the CallVM-free functions are per VTable, however the latter can be changed out
      at runtime... which basically changes potentially the deallocator...
      same goes for functions setting the mode. think about how to make this safer - currently
      we have a higher flexibility and we need to potentially clean up from the mode we are in,
      however, this is open to misuse
- !!! dcGetError flags get set, but not unset after successful calls
- check all vararg calling conv implementations if they promote correctly
  (e.g. float to double); we used to not care as it was the user's job to
  think of that, but we allow users to use ArgFloat, etc. on "..." now,
  taking care of the promotion; so it should be consistent all across the
  implementations -> also write testcode specifically for that
- autovar was never really pushed all the way through and still plays second
  fiddle to dyncall_macros.h, clean this all up, eventually (Tassilo: for now, I
  removed out of sync files to avoid confusion; but still probably duped code)
- ppc32 callback fixes on bsd
- add portable "make install"
  * make install should also install manpages
- mailing list announcements (html email?)
- fix for NDS:
  * ARM:
    - callback_plain retval wrong (not only platform)
  * THUMB:
    - ellipsis (might be test itself, not respecting fixed part of args)
    - callback_plain retval
    - callf
- fix Minix/x86 callbacks (see callback_suite)
- armhf ellipsis: fix weirdness with long long as first ... arg
- support Solaris11 CFLAGS with -D_FILE_OFFSET_BITS=64
- make sure selinux works (esp. regarding NX bits, asm might need (or similar): .section .note.GNU-stack,"",@progbits)
  Daniel has a patch for it, if needed, implementing allocwx with two memory blocks, one for w^x, mmaped to one for r|x
- support /SAFESEH on cl/win32
- test code functions should be in .so files, optionally, so the suites can directly
  be used to test dycnall bindings
- pkg-config support?

portasm:
--------
- add solaris support for x64

dyncall:
--------
- support for return values: aggregate return values
- support for argument values: structures, half-precision, vector types, long double
- varargs for mips (might exist, but test all ABIs)
- consider automatic type-promotion for arguments passed through DC_CALL_C_ELLIPSIS_VARARGS;
  this would make it easier to just pass arguments instead of having to know about the C
  type promotions
- syscalls for x64
  * bsd
  * linux
- other syscalls

dynload:
--------
- bug: test/nm crashes on qemu mips linux o32 debian etch
- test/resolve_self crashes/asserts on windows and bsds
- rename SymsInit to InitSyms and similar for cleanup function to reflect naming
  in dyncall
- get rid of Dl_info and friends (_GNU_SOURCE) in dynload/dynload_syms_elf.c
  for implementation of dlSymsNameFromValue(..)
- check if PSP can support dynload (missing elf.h, dlfcn.h, etc.); fixup readme if successful
- some functionality like java's System.mapLibraryName('name') might be helpful?

dyncallback:
------------
- callback_plain's return value not correct anymore on NDS (maybe just broken testcode?)
- add MIPS callbacks for eabi, n32, o32 (thunks are working)
- finish PPC32 callbacks (see bugs section, below, BSD not working)

bindings:
---------
- release bindings as standalone packages (already done for rbdc as a gem and rdyncall on cran)
  * add note to documentation, where bindings are and that some bindings are svn-only ATM
- add rdoc documentation to ruby gem
- add pydoc for python
- add manpage for shdc
- expose callf-convenience functions to go
- add godoc for godc
- add javadoc to java
- add more bindings
- add callback support for erlang, go, java, lua, python and ruby (and shell? how?)
- add call-conv-mode-support for rbdc through signature

manual:
-------
- finish tex4ht manual generation (use \ifhtml and \ifnhtml, ...)
- provide more examples on how to use dyncall, dynload and dyncallback
  * e.g. enhance manual with a couple of examples (e.g. calling MessageBoxA on windows, etc.)
- manuals for bindings (as stated in bindings-section, above)

urgent issues:
--------------
- finish SPARC/SPARC64 calling conventions in doc's callconv-appendix !!!
- Haiku/gmake build doesn't build dynload due to the fact, that elf.h is not found
  on default installations (one has to install the system headers)
  * add to doc
- Solaris/gmake build doesn't build dynload and tests anymore (maybe not even dyncallback)
- test arm32/ATPCS/THUMB (and then change Status in doc Appendix)
- look over code and fix TODO or @@@ marks
- add ppc-support to doc (both, 32 and 64, as well as little and big endian remarks)

nice to have:
-------------
- update: microsoft visual c++ build files - integrate all test suites in solution file
- consistency: on x64 platforms: make both ABIs available ('win64','sysv') for all x64 OS ports
- microsoft build enhancement: autodetect assembly via C preprocessor (like with .S gcc files)
- test/thunk: some platforms do not allow for allocation of executable code on heap and stack -- 
  currently this test will crash, maybe we should collect information which platforms allow and which not.

bugs:
-----
- callconv set specifically for platform that has only one (default) excepts for some
  platforms, eg. setting X64_sysv on amd64/Linux - keeping cdecl which is the same in
  this case, works
- callbacks on ppc32 only work on linux and apple (osx abi), but not BSD
- vararg function calls don't work for ARM THUMB mode (Daniel's new interface for modesetting for varag
  args should be used); adapt test/ellipsis and/or retest

missing implementations (descending priority):
----------------------------------------------
- riscv
- itanium
- 68k, 88k, 6502, etc.
- alpha
- superh
- cell
- blackfin
- s/390
- z80
- hppa
- vax
- atmel avr
- propeller
- amd29k
- arc
- seaforth