Paul Bone 50daad3ff7 Document a bug without fixing it. ...

I've found the cause of a long standing race condition in the parallel
runtime system.  The fix is to properly design the engine state and
notification system in the parallel runtime system.  I've worked on a design
and committed a description.  I've started implementing the changes but found
a new different race condition.  I don't currently have the time to complete
this change, therefore I will commit the documentation of the current
problem and proposed solution.

runtime/mercury_context.c:
    As above, document the current race.

    Also comment on a bug where an idle engine could be notified of a
    context to execute.  This notification could be dropped in some
    situations causing the context to be lost.

runtime/notes/par_engine_state.txt:
runtime/notes/par_engine_state.dot:
    As above, document the proposed new engine state and notification
    design.

2012-09-04 11:08:38 +00:00

..

GETOPT

…

machdeps

…

.cvsignore

…

.gdbinit

…

.gdbinit.no_reg_vars

…

.gdbinit.sparc

…

.mgnuc_copts

…

.mgnuc_opts

…

.nocopyright

…

Arrangeregs

…

autoconf.h.in

…

Bestregs

…

conf.h

…

configure.in

…

ext_signal.h

…

ext_stdio.h

…

ext_stdlib.h

…

iface_g.y

…

iface_s.l

…

iface.h

…

iface.mod

…

io.h

…

io.mod

…

list.c

…

list.h

…

Makefile.conf.in

…

mercury_accurate_gc.c

Add float registers to the Mercury abstract machine, implemented as an

2011-10-17 04:31:33 +00:00

mercury_accurate_gc.h

…

mercury_agc_debug.c

Add float registers to the Mercury abstract machine, implemented as an

2011-10-17 04:31:33 +00:00

mercury_agc_debug.h

…

mercury_array_macros.h

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_atomic_ops.c

On some systems the CPU's time stamp counter (TSC) cannot reliabily be

2012-06-20 13:13:34 +00:00

mercury_atomic_ops.h

On some systems the CPU's time stamp counter (TSC) cannot reliabily be

2012-06-20 13:13:34 +00:00

mercury_backjump.c

…

mercury_backjump.h

Improve work stealing. Spark deques have been associated with contexts so far.

2011-04-13 13:19:42 +00:00

mercury_bitmap.c

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_bitmap.h

Avoid using the __GNUC__ macro in the runtime as a test for the presence of

2011-08-01 07:06:21 +00:00

mercury_bootstrap.c

…

mercury_bootstrap.h

Avoid warnings about functions that don't return in the runtime

2011-09-12 16:29:55 +00:00

mercury_builtin_types_proc_layouts.h

…

mercury_builtin_types.c

Fix style.

2010-09-15 04:36:23 +00:00

mercury_builtin_types.h

…

mercury_calls.h

…

mercury_complexity.h

…

mercury_conf_bootstrap.h

…

mercury_conf_param.h

Fix bug #243: the management of memory zones on Windows was broken, causing a

2011-12-07 11:29:16 +00:00

mercury_conf.h.in

Fix compilation problems of the runtime under Sparc Solaris 10.

2012-07-29 10:13:17 +00:00

mercury_construct.c

…

mercury_construct.h

…

mercury_context.c

Document a bug without fixing it.

2012-09-04 11:08:38 +00:00

mercury_context.h

Modify how an idle engine with a dirty context gets new work.

2012-08-06 02:11:24 +00:00

mercury_debug.c

Fix a crash that can occur in low-level C, parallel, stack-segment grades.

2010-05-26 07:45:49 +00:00

mercury_debug.h

Fix a crash that can occur in low-level C, parallel, stack-segment grades.

2010-05-26 07:45:49 +00:00

mercury_deconstruct_macros.h

Store double-precision `float' constructor arguments in unboxed form,

2011-09-06 05:20:45 +00:00

mercury_deconstruct.c

Store double-precision `float' constructor arguments in unboxed form,

2011-09-06 05:20:45 +00:00

mercury_deconstruct.h

Store double-precision `float' constructor arguments in unboxed form,

2011-09-06 05:20:45 +00:00

mercury_deep_call_port_body.h

…

mercury_deep_copy_body.h

Allow the use of Mercury abstract machine float registers for passing

2012-02-13 00:11:57 +00:00

mercury_deep_copy.c

Allow the use of Mercury abstract machine float registers for passing

2012-02-13 00:11:57 +00:00

mercury_deep_copy.h

…

mercury_deep_leave_port_body.h

…

mercury_deep_profiling_hand.h

…

mercury_deep_profiling.c

Various changes to make feedback analysis (for automatic parallelism) easier to

2011-12-14 03:26:01 +00:00

mercury_deep_profiling.h

Make coverage profiling data 'deep'.

2010-09-21 01:09:17 +00:00

mercury_deep_rec_depth_actions.h

…

mercury_deep_rec_depth_body.h

…

mercury_deep_redo_port_body.h

…

mercury_dlist.c

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_dlist.h

…

mercury_dotnet.cs.in

Pack consecutive enumeration arguments in discriminated union types into a

2011-07-05 03:34:39 +00:00

mercury_dummy.c

…

mercury_dummy.h

…

mercury_dword.h

…

mercury_engine.c

Modify how an idle engine with a dirty context gets new work.

2012-08-06 02:11:24 +00:00

mercury_engine.h

Add float registers to the Mercury abstract machine, implemented as an

2011-10-17 04:31:33 +00:00

mercury_exception_catch_body.h

…

mercury_expanding_array.h

Correct the prefixes on the symbol and macro names provided by HGC.

2010-02-13 07:29:10 +00:00

mercury_faultaddr.h

…

mercury_file.c

…

mercury_file.h

…

mercury_float.c

Fix a bug in MR_sprintf_float where it would convert 1.8e-10

2010-07-16 07:19:12 +00:00

mercury_float.h

Fix bug #240 and bug #211. When MR_Float is wider than MR_Word, the C compiler

2011-12-08 23:24:14 +00:00

mercury_getopt1.c

…

mercury_getopt.c

Don't use MR_GNUC here since we don't #include the usual

2011-08-09 11:07:37 +00:00

mercury_getopt.h

…

mercury_goto.h

Avoid using the __GNUC__ macro in the runtime as a test for the presence of

2011-08-01 07:06:21 +00:00

mercury_grade.c

…

mercury_grade.h

Remove references to nondet foreign_proc from the definition of the data

2011-09-26 04:30:48 +00:00

mercury_hand_compare_body.h

…

mercury_hand_unify_body.h

…

mercury_hand_unify_compare_body.h

…

mercury_hash_lookup_or_add_body.h

…

mercury_hash_table.c

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_hash_table.h

…

mercury_heap_profile.c

Fix a another Visual C runtime compilation problem.

2011-07-13 01:22:54 +00:00

mercury_heap_profile.h

Fix a problem that was causing the namespace check to fail.

2011-05-21 13:59:07 +00:00

mercury_heap.h

Avoid using the __GNUC__ macro in the runtime as a test for the presence of

2011-08-01 07:06:21 +00:00

mercury_hgc.c

Correct the prefixes on the symbol and macro names provided by HGC.

2010-02-13 07:29:10 +00:00

mercury_hgc.h

Correct the prefixes on the symbol and macro names provided by HGC.

2010-02-13 07:29:10 +00:00

mercury_hlc_types.h

…

mercury_ho_call.c

Allow the use of Mercury abstract machine float registers for passing

2012-02-13 00:11:57 +00:00

mercury_ho_call.h

Allow the use of Mercury abstract machine float registers for passing

2012-02-13 00:11:57 +00:00

mercury_il.il

…

mercury_imp.h

A first step in allowing users to ask the compiler to implement the primitive

2009-06-11 08:28:32 +00:00

mercury_init.h

Correct the prefixes on the symbol and macro names provided by HGC.

2010-02-13 07:29:10 +00:00

mercury_label.c

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_label.h

…

mercury_layout_util.c

Allow the use of Mercury abstract machine float registers for passing

2012-02-13 00:11:57 +00:00

mercury_layout_util.h

Add float registers to the Mercury abstract machine, implemented as an

2011-10-17 04:31:33 +00:00

mercury_library_types.h

…

mercury_make_type_info_body.h

…

mercury_memory_handlers.c

Fix bug #243: the management of memory zones on Windows was broken, causing a

2011-12-07 11:29:16 +00:00

mercury_memory_handlers.h

Avoid problems with the inclusion of windows.h in the runtime and a few

2011-10-26 14:08:45 +00:00

mercury_memory_zones.c

It's possible for MR_zone_name to be NULL, in that case set the

2012-07-29 11:35:43 +00:00

mercury_memory_zones.h

Add support for tracking the number, and amount of memory consumed by memory

2011-11-23 10:53:01 +00:00

mercury_memory.c

Don't call a function that doesn't exist in grades that don't use conservative

2011-11-12 13:08:49 +00:00

mercury_memory.h

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_minimal_model.c

…

mercury_minimal_model.h

…

mercury_misc.c

Fix formatting of debug message.

2011-10-24 03:52:59 +00:00

mercury_misc.h

Avoid warnings about functions that don't return in the runtime

2011-09-12 16:29:55 +00:00

mercury_ml_arg_body.h

Store double-precision `float' constructor arguments in unboxed form,

2011-09-06 05:20:45 +00:00

mercury_ml_deconstruct_body.h

…

mercury_ml_expand_body.h

Allow the use of Mercury abstract machine float registers for passing

2012-02-13 00:11:57 +00:00

mercury_ml_functor_body.h

…

mercury_mm_own_stacks.c

Don't attempt to use an uninitialized local variable.

2011-11-12 12:56:02 +00:00

mercury_mm_own_stacks.h

…

mercury_overflow.h

…

mercury_par_builtin.c

Runtime changes to support tail recursion in loop controlled code.

2011-10-19 11:57:54 +00:00

mercury_par_builtin.h

Modify how an idle engine with a dirty context gets new work.

2012-08-06 02:11:24 +00:00

mercury_proc_id.h

…

mercury_prof_mem.c

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_prof_mem.h

…

mercury_prof_time.c

A step towards getting a subset of deep profiling to work on Windows.

2011-11-05 15:58:16 +00:00

mercury_prof_time.h

A step towards getting a subset of deep profiling to work on Windows.

2011-11-05 15:58:16 +00:00

mercury_prof.c

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_prof.h

…

mercury_reg_workarounds.c

…

mercury_reg_workarounds.h

…

mercury_region.c

Fix a recent XXX.

2011-11-14 06:02:37 +00:00

mercury_region.h

Fix compilation of the runtime in rbmm grades.

2011-11-12 12:29:21 +00:00

mercury_regs.c

…

mercury_regs.h

Add float registers to the Mercury abstract machine, implemented as an

2011-10-17 04:31:33 +00:00

mercury_runtime_util.c

…

mercury_runtime_util.h

…

mercury_signal.c

Re-throw unhandled signals.

2010-05-23 04:54:22 +00:00

mercury_signal.h

Re-throw unhandled signals.

2010-05-23 04:54:22 +00:00

mercury_stack_layout.c

Reduce the size of the string tables in debuggable executables by encoding

2011-09-26 04:29:37 +00:00

mercury_stack_layout.h

Give the Mercury debugger the ability to detect cliques of mutually recursive

2012-06-05 18:19:33 +00:00

mercury_stack_trace.c

Give the Mercury debugger the ability to detect cliques of mutually recursive

2012-06-05 18:19:33 +00:00

mercury_stack_trace.h

Give the Mercury debugger the ability to detect cliques of mutually recursive

2012-06-05 18:19:33 +00:00

mercury_stacks.c

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_stacks.h

Nondet stack segments didn't work properly using the placeholder frame trick

2008-08-07 01:16:19 +00:00

mercury_std.h

Fix a problem with the runtime when using GCC in C99 mode.

2012-01-04 13:56:12 +00:00

mercury_stm.c

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_stm.h

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_string.c

Optimise some UTF-8 routines in C grades and fix a few bugs.

2012-03-26 06:57:34 +00:00

mercury_string.h

Optimise some UTF-8 routines in C grades and fix a few bugs.

2012-03-26 06:57:34 +00:00

mercury_table_int_fix_index_body.h

…

mercury_table_int_start_index_body.h

…

mercury_table_type_body.h

Store double-precision `float' constructor arguments in unboxed form,

2011-09-06 05:20:45 +00:00

mercury_table_typeinfo_body.h

…

mercury_tabling_macros.h

…

mercury_tabling_preds.h

…

mercury_tabling_stats_defs.h

…

mercury_tabling_stats_nodefs.h

…

mercury_tabling_stats_undefs.h

…

mercury_tabling.c

Store double-precision `float' constructor arguments in unboxed form,

2011-09-06 05:20:45 +00:00

mercury_tabling.h

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_tags.h

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_term_size.c

Implement a type representation optimisation ("direct argument functors"),

2011-06-16 06:42:19 +00:00

mercury_term_size.h

…

mercury_thread.c

ThreadScope support improvements.

2012-06-19 11:08:16 +00:00

mercury_thread.h

Improve thread pinning:

2011-10-13 02:42:21 +00:00

mercury_threadscope.c

On some systems the CPU's time stamp counter (TSC) cannot reliabily be

2012-06-20 13:13:34 +00:00

mercury_threadscope.h

On some systems the CPU's time stamp counter (TSC) cannot reliabily be

2012-06-20 13:13:34 +00:00

mercury_timing.c

Avoid problems with the inclusion of windows.h in the runtime and a few

2011-10-26 14:08:45 +00:00

mercury_timing.h

…

mercury_trace_base.c

Fix layout.

2011-09-21 09:31:53 +00:00

mercury_trace_base.h

Remove references to nondet foreign_proc from the definition of the data

2011-09-26 04:30:48 +00:00

mercury_trace_term.c

…

mercury_trace_term.h

…

mercury_trail.c

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_trail.h

Add a mechanism for dynamically growing the trail by adding new segments to it

2008-09-05 11:19:34 +00:00

mercury_type_desc.c

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_type_desc.h

…

mercury_type_info.c

Allow the use of Mercury abstract machine float registers for passing

2012-02-13 00:11:57 +00:00

mercury_type_info.h

Allow the use of Mercury abstract machine float registers for passing

2012-02-13 00:11:57 +00:00

mercury_type_tables.c

…

mercury_type_tables.h

…

mercury_typeclass_info.h

Add pointers in each file to the other, since they contain respectively

2012-01-09 03:31:08 +00:00

mercury_types.h

Use MR_GNUC in place of __GNUC__ in some spots.

2011-08-02 08:28:19 +00:00

mercury_unify_compare_body.h

Implement a type representation optimisation ("direct argument functors"),

2011-06-16 06:42:19 +00:00

mercury_univ.h

…

mercury_windows.h

Fix several problems in the recently added mercury_windows header.

2011-10-27 14:14:10 +00:00

mercury_wrapper.c

This patch corrects a bug in my previous commit.

2012-06-22 09:24:09 +00:00

mercury_wrapper.h

Various changes to make feedback analysis (for automatic parallelism) easier to

2011-12-14 03:26:01 +00:00

mercury_wsdeque.c

Implement a new form of memory profiling, which tells the user what memory

2011-05-20 04:16:58 +00:00

mercury_wsdeque.h

Improve work stealing. Spark deques have been associated with contexts so far.

2011-04-13 13:19:42 +00:00

mercury.c

Support unboxed float fields in high-level C grades.

2011-08-22 07:56:10 +00:00

mercury.h

Fix the condition protecting the definition of MR_GC_MALLOC_INLINE,

2011-09-19 08:46:23 +00:00

Mmakefile

Fix compilation problems of the runtime under Sparc Solaris 10.

2012-07-29 10:13:17 +00:00

PORTABILITY

…

process_getopt

…

RESERVED_MACRO_NAMES

Fix several problems in the recently added mercury_windows header.

2011-10-27 14:14:10 +00:00