suspect-devices/circuitpython/py/gc.c, branch v1.5.1CircuitPython - a Python implementation for teaching coding with microcontrollershttps://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=v1.5.12015-11-07T14:26:11+00:00py: Clear finalizer flag when calling gc_free.2015-11-07T14:26:11+00:00Dave Hylandsdhylands@gmail.com2015-11-06T22:32:47+00:00urn:sha1:7f3c0d1ea8fa21df3b2078c7189f2b26fe36da59
Currently, the only place that clears the bit is in gc_collect.
So if a block with a finalizer is allocated, and subsequently
freed, and then the block is reallocated with no finalizer then
the bit remains set.
This could also be fixed by having gc_alloc clear the bit, but
I'm pretty sure that free is called way less than alloc, so doing
it in free is more efficient.
py: Eliminate some cases which trigger unused parameter warnings.2015-09-04T15:53:46+00:00Damien Georgedamien.p.george@gmail.com2015-09-04T15:53:46+00:00urn:sha1:3a2171e4061f3a6e3f00c28edf78ff9473355887py: Improve allocation policy of qstr data.2015-07-14T21:56:32+00:00Damien Georgedamien.p.george@gmail.com2015-06-13T20:53:22+00:00urn:sha1:ade9a052365247be5ed4ce8b53c2164a576a4a05
Previous to this patch all interned strings lived in their own malloc'd
chunk. On average this wastes N/2 bytes per interned string, where N is
the number-of-bytes for a quanta of the memory allocator (16 bytes on 32
bit archs).
With this patch interned strings are concatenated into the same malloc'd
chunk when possible. Such chunks are enlarged inplace when possible,
and shrunk to fit when a new chunk is needed.
RAM savings with this patch are highly varied, but should always show an
improvement (unless only 3 or 4 strings are interned). New version
typically uses about 70% of previous memory for the qstr data, and can
lead to savings of around 10% of total memory footprint of a running
script.
Costs about 120 bytes code size on Thumb2 archs (depends on how many
calls to gc_realloc are made).
py: Convert occurrences of non-debug printf to mp_printf.2015-04-16T14:30:16+00:00Damien Georgedamien.p.george@gmail.com2015-04-11T11:15:47+00:00urn:sha1:e72cda99fd5fc9e7c6476eb8574c4401d3ef9560py: Make heap printing compatible with 16-bit word size.2015-04-03T13:11:13+00:00Damien Georgedamien.p.george@gmail.com2015-03-31T22:07:02+00:00urn:sha1:12ab9eda8dcebb166679cb3b2e8b61facedced68py: Put mp_sys_path, mp_sys_argv and gc_collected in mp_state_ctx_t.2015-02-07T17:24:10+00:00Damien Georgedamien.p.george@gmail.com2015-02-07T17:24:10+00:00urn:sha1:e1e359ff59d6bbf09441cc1f3965be63f1046182
Without mp_sys_path and mp_sys_argv in the root pointer section of the
state, their memory was being incorrectly collected by GC.
py, unix, lib: Allow to compile with -Wold-style-definition.2015-01-12T22:34:38+00:00Damien Georgedamien.p.george@gmail.com2015-01-12T22:34:38+00:00urn:sha1:abc1959e2c8170cc37d2e1fa1654f1266479d666py: Add (commented out) code to gc_dump_alloc_table for qstr info.2015-01-11T14:37:06+00:00Damien Georgedamien.p.george@gmail.com2015-01-11T14:37:06+00:00urn:sha1:ec21405821dd997d337a0f387db9b1a45b32834bRemove obsolete bss-related code/build features2015-01-08T14:29:44+00:00stijnstinos@zoho.com2015-01-08T09:32:45+00:00urn:sha1:afd6c8e1d2a2c24595194879481987cec3b57f8a
GC for unix/windows builds doesn't make use of the bss section anymore,
so we do not need the (sometimes complicated) build features and code related to it
py: Put all global state together in state structures.2015-01-07T20:33:00+00:00Damien Georgedamien.p.george@gmail.com2015-01-01T23:30:53+00:00urn:sha1:b4b10fd350852e321624d74983cca286091b55a1
This patch consolidates all global variables in py/ core into one place,
in a global structure. Root pointers are all located together to make
GC tracing easier and more efficient.