stijn
bbcea3f62b
gc: More verbose debugging
...
Add more DEBUG_printf statements to trace gc behaviour
2014-06-16 12:43:35 +02:00
Damien George
c037694957
py, gc: Revert ret_ptr to void*, casting to byte* for memset.
2014-06-13 22:33:31 +01:00
stijn
f33385f56d
gc: Use byte* pointers instead of void* for pointer arithmetic
...
void* is of unknown size
2014-06-13 20:42:06 +02:00
Paul Sokolovsky
755a55f507
modgc: Implement return value for gc.collect(), enable on Unix.
2014-06-05 22:48:02 +03:00
Damien George
0fb80c303a
py: Compress a little the bytecode emitter structure.
2014-05-10 18:16:21 +01:00
Damien George
04b9147e15
Add license header to (almost) all files.
...
Blanket wide to all .c and .h files. Some files originating from ST are
difficult to deal with (license wise) so it was left out of those.
Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
2014-05-03 23:27:38 +01:00
Damien George
32bef315be
py, gc: Only zero out the extra bytes at the end of the heap chunk.
...
This is a small optimisation to zero out only the additional bytes that
the caller did not ask for.
2014-04-26 22:23:42 +01:00
Damien George
c492cf1f44
Merge branch 'master' of github.com:micropython/micropython
2014-04-25 23:45:52 +01:00
Damien George
daab651c5c
py, gc: Zero out newly allocated blocks in the GC.
...
Also add some more debugging output to gc_dump_alloc_table().
Now that newly allocated heap is always zero'd, maybe we just make this
a policy for the uPy API to keep it simple (ie any new implementation of
memory allocation must zero all allocations). This follows the D
language philosophy.
Before this patch, a previously used memory block which had pointers in
it may still retain those pointers if the new user of that block does
not actually use the entire block. Eg, if I want 5 blocks worth of
heap, I actually get 8 (round up to nearest 4). Then I never use the
last 3, so they keep their old values, which may be pointers pointing to
the heap, hence preventing GC.
In rare (or maybe not that rare) cases, this leads to long, unintentional
"linked lists" within the GC'd heap, filling it up completely. It's
pretty rare, because you have to reuse exactly that memory which is part
of this "linked list", and reuse it in just the right way.
This should fix issue #522 , and might have something to do with
issue #510 .
2014-04-25 23:37:55 +01:00
Damien George
410f30772f
py, gc: Fix old gc_realloc for case when NULL is passed in as ptr.
2014-04-25 11:44:53 +00:00
Paul Sokolovsky
5b991ae2d3
gc: gc_realloc(): Fix byte-to-block calculation.
2014-04-20 20:46:39 +03:00
Damien George
dde739d364
py, gc: Further simplify coding-style of gc_realloc.
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No logic changes, just coding style to make it easy to read.
2014-04-20 18:16:25 +01:00
Paul Sokolovsky
c86889dafb
gc: "new" gc_realloc: Rewrite in plain C, fixing bunch of bugs.
...
There were typos, various rounding errors trying to do concurrent counting
in bytes vs blocks, complex conditional paths, superfluous variables, etc.,
etc., all leading to obscure segfaults.
2014-04-20 13:08:33 +03:00
Paul Sokolovsky
ed162b5ef2
gc: Recover simple gc_realloc implementation, make easier to switch between.
2014-04-20 13:08:33 +03:00
Paul Sokolovsky
03b9ad7b01
gc.c: Remove superfluous typedef (bute defined in misc.h).
2014-04-09 04:13:21 +03:00
Damien George
443e018a3f
py: Improve GC locking/unlocking, and make it part of the API.
2014-04-08 11:31:21 +00:00
Damien George
12bab72d93
Improve GC finalisation code; add option to disable it.
2014-04-05 20:35:48 +01:00
Damien George
8123a3339d
Merge pull request #425 from iabdalkader/del
...
Implement del
2014-04-05 18:49:39 +01:00
mux
cc849f70f4
Move del to locals
2014-04-05 15:49:03 +02:00
mux
4f7e9f5c44
Implement del
2014-04-03 23:55:12 +02:00
Paul Sokolovsky
e807fa8d60
gc: Uses uint defined in misc.h.
2014-04-02 20:36:32 +03:00
Damien George
70f33cde48
py: Fix up so that it can compile without float.
2014-04-02 17:06:05 +01:00
xbe
efe3422394
py: Clean up includes.
...
Remove unnecessary includes. Add includes that improve portability.
2014-03-17 02:43:40 -07:00
Damien George
470184e2c3
py: Cosmetic changes.
2014-03-12 22:44:11 +00:00
mux
8782676514
Fix realloc
2014-03-12 21:00:23 +02:00
Damien George
6fc765c928
py: Revert to old gc_realloc for now.
2014-03-07 00:21:51 +00:00
Damien George
f08ddef676
py: Add comments to new gc_realloc, it has some bugs.
2014-03-06 23:59:01 +00:00
Damien George
73d579354b
py: Small cosmetic changes to gc_realloc.
2014-03-06 00:02:16 +00:00
mux
fbaa1479f4
Fix gc_realloc to expand in place
...
* Issue #322
2014-03-05 23:23:04 +02:00
Damien George
ce1162ab15
GC: Fix printf formats for debugging; add gc_dump_alloc_table.
2014-02-26 22:55:59 +00:00
Damien George
41eb6086b7
py: Remove more var arg names fro macros with var args.
2014-02-26 22:40:35 +00:00
Paul Sokolovsky
44739e280e
Make DEBUG_printf() a proper function, implementation is port-dependent.
...
In particular, unix outputs to stderr, to allow to run testsuite against
micropython built with debug output (by redirecting stderr to /dev/null).
2014-02-16 18:20:49 +02:00
Paul Sokolovsky
520e2f58a5
Replace global "static" -> "STATIC", to allow "analysis builds". Part 2.
2014-02-12 18:31:30 +02:00
Paul Sokolovsky
723a6ed371
More GC debugging improvements.
2014-02-11 18:09:50 +02:00
Paul Sokolovsky
c0a8374103
gc: Don't segfault if gc_realloc() fails.
2014-02-11 15:34:32 +02:00
Paul Sokolovsky
af19cbd201
gc: Make debug output configurable, revamp test function.
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Test function needs to be called by something else. Test heap size reduced so
its dump fits on a screenful of a typical terminal.
2014-02-11 02:31:28 +02:00
Damien George
0004a84ec0
Revert "Move gc_collect to py/gc.c"
...
This reverts commit a215b09c0d
2014-01-24 22:54:09 +00:00
mux
a215b09c0d
Move gc_collect to py/gc.c
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* Move gc_collect from main to py/gc.c
* Define GC's memory boundaries in linker script
* Issue #220
2014-01-24 21:33:19 +02:00
Paul Sokolovsky
fc5aac82cb
Move BITS_PER_BYTE, BITS_PER_WORD to mpconfig.h for reuse.
2014-01-12 22:04:20 +02:00
Damien George
d3ebe4829d
Factor and simplify Makefile's and mpconfig, part 2.
2014-01-07 15:20:33 +00:00
Damien
d99b05282d
Change object representation from 1 big union to individual structs.
...
A big change. Micro Python objects are allocated as individual structs
with the first element being a pointer to the type information (which
is itself an object). This scheme follows CPython. Much more flexible,
not necessarily slower, uses same heap memory, and can allocate objects
statically.
Also change name prefix, from py_ to mp_ (mp for Micro Python).
2013-12-21 18:17:45 +00:00
Damien
d2c1a732e5
Call gc_free in gc_realloc after allocating new block.
2013-10-23 21:03:27 +01:00
Damien
8b3a7c2237
Fix func decls with no arguments: () -> (void).
2013-10-23 20:20:17 +01:00
Damien
bb5316b905
gc: reserve first block; lexer: free vstr.
2013-10-22 21:12:29 +01:00
Damien
fd8b6bcf55
Add gc_free function to force a block to be freed.
2013-10-22 20:26:36 +01:00
Damien
eefcc79022
Clear ATBs on gc_init; better gc_info.
2013-10-22 15:25:25 +01:00
Damien
dcced92c26
Add mark-sweep garbage collector.
2013-10-21 23:45:08 +01:00
