package herdtools7

CHANGES.txt

7.56
  * Experimental -variant 'deps': computes dependencies in cat.
7.55
  * X86_64 support (Credit Antoine Hacquard)
  * Numerous AArch86 extensions, including regisions and scope definitions.
  * RISCV amo support.
7.47+3
  * Correct double labelling of rf edges: -doshow rf is now a no-operation
  * RISCV support for herd
7.47+2
  * RISCV support for litmus and generators.
7.47+1
  * Some cleanup in options while documenting klitmus.
7.47
  * Add many Linux C atomic primitives.
7.46+3
  * lock primitive actions take part to dependencies.
  * herd/linux: serious semantical work on compare exchange and add_unless
  * herd/linux: failed fenced atomics do not generate fence events.
  * herd: uniform handling of indivudual events and relational pairs.
  * litmus: accept void * in argument types.
  * tools: Introduce mlisa2c, a tool to produce C11/Linux versions from
    Linux LISA
7.46+2
  * New linux locks, simulate load-acquire write release behaviour more
    closely.
7.46
  * C better lock integration. NB: POSIX locks used by litmus.
  * herd: correct PR #3 [semantics of C11 CAS]
  * linux: complete (?) implementation of atomic.h
  * tools, add -int32 <bool> command-line option.
  * gen Arch64, for -ua 0, now emit a LDXR/STXR pair and observe result
   register of STXR.
  * herd, global behaviour for 'show' instruction (no purge of state show component at procedure return)
  * Add AArch64 instruction csel
7.45
  * New ARMv8 model
  * klitmus tool
7.44
  * herd: add atomic_compare_exchange_..._explicit in C parser.
  * Suppress " in mcond output.
7.43+3
  * gen/litmus/herd: add ARMv8 LDAPR instruction (contribution by Will Deacon)
  * herd: cos-opt.cat, bug ! --> Do not redefine RMW
  * herd: PPC, avoid data or address dependencies from lwarx to matchin stwcx.
7.43+2
 * Correct C semantics bug if (e) was understood as direct boolean 0/1 test.
   Now understood as if (e != 0), as it should.
7.43+1
 * New tool mlock
7.43
 * opam release
7.42+1
 * Add -cycles names option, to display cycles of failing checks.
 * Add support for C11 atomic_compare_exchange_... primitives.
7.42
 * Fix license, add README, publish as an OPAM package
 * gen: avoid pseudo-instruction li in generated tests.
 * tools: option -alloc <bool> for mprog [allocate symbolic registers].
 * herd: the match constructs also applies to relation.
 * Correct libdir definition for gen: same as herd, as it may parse bell
   files and  would thus include stdlib.cat
7.41
 * More opam
7.40
 * Opam build
7.39
 * herd: enable matching over event sets.
 * tools: add msethashes, for changing *test* hashes.
7.38
 * gen: list all global variables in init when type is non-default
 * new mselect: specify intervals for number of ins and number of threads.
 * Data dependencies are through registers only.
7.37
 * Add array access as a location, meaningfull only for litmus at present
7.36
 * herd: support for linux spin_lock and spin_unlock.
7.35
 * herd: Correct LISA rmw "exchange" -> same semantics as X86 xch
7.34
 * suppress some 32 bits constants -> 31 bits
 * gen : follow -realdep true option for AArch64 and ARM
7.33
 * herd: reformulate C load and store to use expressions as locations.
   Brittle (cf. jingle)
7.32
 * Specific internal dependencies for C exchange and LISA Rmw...
 * X86, correct data ports for the exchange instruction.
7.31
 * Backward compatibility
7.30
 * herd: bug LISA, parsing, add one-letter instruction as possible annotations.
7.29
 * herd: bug stdlib.cat (old fromto).
7.28
 * herd: correcy fromto ? At least compatible with article.
7.27
 * linux: lock -> rcu_read_lock; unlock -> rcu_read_unlock
7.26
 * AArch64, add logical and instruction.
 * Generators, implement -obs three,four,infinity
7.25
 * litmus bug, strh instruction were parsed as strb (copy-paste bug)
 * Linux atomic operations, xchg only.
7.24
 * Add AArch64 instruction STP/STNP (litmus only)
 * Correct msum7 -hexa ---> Conditions are also in hexa.
 * Add AArch64 instruction LDNP (litmus only).
7.23
 * Add AArch64 instruction LDP (litmus only).
 * Set X is also RMW (Lisa)
7.22
  * litmus option -exit true --> exit status reflects final condition success
    or failure.
  * qemu mode for litmus
  * add  -force option to mrcu forces translation in all conditions.
  * handle the CALL[sync] -> f[sync] change un mrcu
7.21
  * LISA: CALL instructuction reversed to  F instruction. Compatibility
    mode present.
7.20
  * C arch, correct stupid bug in control dependencies
   (forgot if without else....)
7.19
  * herd/cat : empty check also operates on sets.
  * Litmus: noalign meta information
7.18
  * Add a set of data ports to event structures, in order to separate
    data and address dependencies. Brittle on RMW.
  * Add intruction level control dependency (for C).
  * Suppress deprecaton warnings, by writing code in misc...
7.17
  * More Linux macros
  * Locked instructions for X86, simplify setting: 1. suppress atomicity
    component of event structures + set atomicity at event creation time.
7.16
  * Oups trivial bug in filters.cat
7.15
  * Add M. Batty et all's models and take the most advanced
   (with partial orders) one as the C default.
  * Add macros to C arch and bell support
  * Correct x86tso bug + use A in filters as atomic.
7.14
  * <correct> mrcu (check that call[sync] L...U ran at most once
    (replace condition on shared location by specific register, because
     of "last write" problem)
7.13
  * <correct> mrcu (check that call[sync] L...U ran at most once.
7.12
  * tools added mrcu (for rcu translation) => add "filter" component to tests.
7.11
  * tools: correct mcmp (normalize_simple in logState), so as to accept
           flowing model output.
  * tools: add mshowhashes to list test hashes + share code with mdiag
7.10
  * Correct bug in computing ne (not equal): was 1 (true) for two different
    "S" vars...
7.09
  * Internal change of mdiag: diagnostics are more precise.
  * All lexers, ignore '\r'.
  * CAT: make the initial "identity" string optional.
7.08
  * C11: add NA for non-atomics events (needed by popl15c11 models from the catalogue)
  * LISA: change rmw sematics as fetch_and_op , was op_and_fetch
7.07
  * herd: set 'Atom' -> set 'X' (compatibility)
7.06
  * herd: Add set 'Atom' for LISA atimic events.
  * Dependencies for C, always "real".
  * generators: -realdep <bool> option
  * LISA, non-conditional branch.
7.05
  * litmus -noalign option
7.04
7.03
7.02

  * LISA :backward compatibility: f[sync] -> call[sync]
  * LISA : introduce call instructions.
  * herd : make exchange an expression (was an instruction !)
  * herd : use short memory model names in pictures
  * lib : C make exchange and fetch expressions, as they should be.
  * tools : handle C arch completely
7.01

  * herd: Add minimal atomicity to LL/SS (PPC and ARM).
  * herd: Recursive procedure + match instruction.

7.00 Release 'Seven'
  * herd: refactored release.
  * litmus:  -driver optiopn to generate standalone C programs or Objective C
  * litmus:  More configuration files (nexus10..)
  * litmus:  Refactoring: avoid mutable internal flags.


5.01 Release
  * litmus:  litmus option -crossrun adb -> run.sh connects to device using adb
    (Android Debugging Bridge)

5.00 Release
   * gen: Added classify tool
   * gen: Uniform naming scheme, clarify usage and document
   * gen: Refactor diyone second mode, in the same style as diy/diycross
   * gen: Support for atomic accesses (undocumented)

  * litmus:  added the mcycles tool
  * litmus:  iPad and asus TF300T configuration files.
  * litmus:  New user synchronisation mode userfence (suggested by Javi Merino)
  * litmus:  More POSIX compliant code in two occasions (malloc/errno and
    use thread level affinity functions, suggested by Javi Merino)
  * litmus:  Runtime option +fix, to cancel out changing launch mode
  * litmus:  Make timebase delay settable (option -delay)
  * litmus:  Timebase synchronisation mode (-barrier timebase).
  * litmus:  option -crossrun <host> -> run.sh run executables on distant machine <host>.
  * litmus:  add -stride mode (memory scanned by increments > 1), useful ? Very useful.
  * litmus:  -linkopt option
  * litmus:  -kind false option, to suppress kind and validation information from output
  * litmus:  -gcc option
  * litmus:  ARM and cortex9 (cross-compilation) configuration files

4.00 Release
   * gen: ARM support.
   * gen: Generalize -o option, as for litmus.
   * gen: option -var for diycross for nice variables.,
   * gen: new tool diycross, similar to diyvar, but let user
     specify  the list of alternatives eg:
     diycross -name SB PodWR,SyncdWR Fre PodWR,SyncdWR Fre
     For 3 MP-like tests (MP, MP+sync+po, MP+syncs)
     diyvar behavior is still here with the pseudo-relaxation all(R|W)(R|W)
     eg: diycross -name SB allWR Fre allWR Fre
   * gen: Add a new functionality for diyone: generate tests from a list
     of cycles given in stdin.
   * Mode precise edge dependencies, DpdR, DpdW, CltrdR, CtrldW
     are still recognised by parser and are default values
     (backward compatibility).
     However, Dpd* and Ctrld* are not available anymore.
   * gen: dont: uncompress archive with gunzip (AIX: tar z.. not accepted)
   * gen: diy: -cumul false also acts on RfStar
   * gen: dont: Corrected bug in default safe_conform list for PPC.
   * gen: dont: Use compressed archive

  * litmus:  new -o support -> dir/tar/tgz
  * litmus:  ARM support, tested on uniproc only
  * litmus:  -loop option, for time measurement
  * litmus:  power7.32 config file, [used for shipped testcases]
  * litmus:  power7 config file
  * litmus:  If affinity is enabled, avail=0 instructs binaries to
    detects available logical processors.
  * litmus:  add optional shuffle in indirect mode (similar to direct mode)
  * litmus:  add random affinity mode (-ra true/+ra)
  * litmus:  added chianti config file
  * litmus:  added vargas16 config file
  * litmus:  -o name.tgz produce compressed archives

3.00 Release

  * litmus:  There is now a Makefile in archives produced with -o <name>.tar.
    Best way to provide parallel compilation (make -j N).
  * litmus:  added -index <@name>, for dumping an index of compiled tests.
  * litmus:  added the -no <cyclelist> option (used by dont).

2.99 Release (beta)

   * gen: Introduce dont, for automating testing.
   * gen: Additional mode for diy: critical, for generating critical cycles
     (no Po/Po consing)
   * gen: Additional option for diy: -cumul, for avoiding ambiguous tests.

2.00 Release

   * gen: -mix option (default false, for backward compatibility)
   * gen: Clarification of observers and documentation
     [three modes accept/avoid/force, three sorts straight/fenced/loop]
     Defaults avoid/fenced.
   * gen: Added PPO pseudo-relaxation, very ad-hoc.
   * gen: Added RfStar edge (ie Rf to a read by lwarx)
   * gen: various -fno mode
   * gen: -sta mode
   * gen: PPO macro
   * gen: Arch independant readRelax

  * litmus:  Added affinity control
  * litmus:  Added prealloc mode.
  * litmus:  -o a.tar and -cross a.tar behave slightly differently.
    (-cross is for released tests, with Makefile & README
  * litmus:  Added call mode.
  * litmus:  Added cache mode.

1.0   Initial release.