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path: root/ext/objspace/object_tracing.c
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2024-12-23use `st_update` to prevent table extensionKoichi Sasada
to prevent the following scenario: 1. `delete_unique_str()` can be called while GC (sweeping) 2. it calls `st_insert()` to decrement the counter 3. `st_insert()` can try to extend the table even if the key exists 4. `xmalloc` while GC and cause BUG Notes: Merged: https://github.com/ruby/ruby/pull/12407
2024-12-16Check whether object is valid in allocation_info_tracer_compactPeter Zhu
When reference updating ObjectSpace.trace_object_allocations, we need to check whether the object is valid or not because it does not mark the object so the object may be dead. This can cause a segmentation fault if the object is on a free heap page. For example, the following script crashes: require "objspace" objs = [] ObjectSpace.trace_object_allocations do 1_000_000.times do objs << Object.new end end objs = nil # Free pages that the objs were on GC.start # Run compaction and check that it doesn't crash GC.compact Notes: Merged: https://github.com/ruby/ruby/pull/12360
2024-12-16Fix ObjectSpace.trace_object_allocations for compactionPeter Zhu
We need to reinsert into the ST table when an object moves because it is a numtable that hashes on the object address, so when an object moves we need to reinsert it rather than just updating the key. Notes: Merged: https://github.com/ruby/ruby/pull/12339
2024-12-16Fix compaction check for ObjectSpace.trace_object_allocationsPeter Zhu
We should be checking for key for moved objects rather than the value because the key is a Ruby object and the value is malloc'd memory. Notes: Merged: https://github.com/ruby/ruby/pull/12339
2023-02-09Merge gc.h and internal/gc.hMatt Valentine-House
[Feature #19425] Notes: Merged: https://github.com/ruby/ruby/pull/7273
2023-01-04Fix crash in tracing object allocationsPeter Zhu
ObjectSpace.trace_object_allocations_start could crash since it adds a TracePoint for when objects are freed. However, TracePoint could crash since it modifies st tables while inside the GC that is trying to free the object. This could cause a memory allocation to happen which would crash if it triggers another GC. See a crash log: http://ci.rvm.jp/results/trunk@ruby-sp1/4373707 Notes: Merged: https://github.com/ruby/ruby/pull/7058
2022-07-21Expand tabs [ci skip]Takashi Kokubun
[Misc #18891] Notes: Merged: https://github.com/ruby/ruby/pull/6094
2021-12-02[Bug #18382] Fix crash in compaction for ObjectSpace.trace_object_allocationsPeter Zhu
ObjectSpace.trace_object_allocations can crash when auto-compaction is enabled. Notes: Merged: https://github.com/ruby/ruby/pull/5202
2020-08-19Fix ObjectSpace.trace_object_allocations_stop to not raise if the tracepoint ↵Jean Boussier
were not initialized Notes: Merged: https://github.com/ruby/ruby/pull/3001
2020-08-18Update references when tracing allocationsAaron Patterson
The allocation tracing code keeps essentially a weak reference to objects that have been allocated (storing the allocation information along with the weak ref). Compacting the heap would break references in this weak map, so the wrong values could be returned. This commit just updates the values in the weak ref in order to fix the allocation tracing book keeping Notes: Merged: https://github.com/ruby/ruby/pull/3429
2019-08-27st_foreach now free from ANYARGS卜部昌平
After 5e86b005c0f2ef30df2f9906c7e2f3abefe286a2, I now think ANYARGS is dangerous and should be extinct. This commit deletes ANYARGS from st_foreach. I strongly believe that this commit should have had come with b0af0592fdd9e9d4e4b863fde006d67ccefeac21, which added extra parameter to st_foreach callbacks.
2018-09-07ext/objspace/object_tracing.c (freeobj_i): fix missing assignmentnobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64657 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-07object_tracing.c: register TracePoint objectsnobu
* ext/objspace/object_tracing.c (trace_object_allocations_start): to prevent TracePoint objects from GC, register them in the VM, since they are unique per VM. http://ci.rvm.jp/results/trunk-test@ruby-sky3/1291901 * ext/objspace/object_tracing.c (trace_object_allocations_stop): reuse TracePoint objects. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64655 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-07ext/objspace/object_tracing.c (freeobj_i): no lookup before deletenobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64652 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-07ext/objspace/object_tracing.c: get rid of aliasing pointersnobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64650 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-08-14Fix a class of a returned valueyui-knk
* ext/objspace/object_tracing.c (allocation_sourceline): Fix a class of a returned value. allocation_sourceline returns an integer. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59587 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-10-26[DOC] replace Fixnum with Integer [ci skip]nobu
* numeric.c: [DOC] update document for Integer class. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56492 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-11-15* internal.h: Include ruby.h and ruby/encoding.h to beakr
includable without prior inclusion. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48447 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-08-03ext: get rid of inadvertent ID creationnobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47043 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-12-17* ext/objspace/object_tracing.c: Fix typo in a variable namea_matsuda
s/registerd/registered/ git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44264 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-12-09object_tracing.c: fix allocation from NEWOBJ hooknobu
* ext/objspace/object_tracing.c (newobj_i): use cached class path only to get rid object allocation during NEWOBJ hook. [ruby-core:58853] [Bug #9212] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44088 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-11-26* ext/objspace/object_tracing.c (newobj_i): skip class_path if classko1
is frozen. rb_class_path() can modify frozen classes (and causes errors). This patch is temporary. We need no-modification/no-allocation class path function. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43856 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-11-09* ext/objspace/object_tracing.c: use declarations in internal.h.nari
* ext/objspace/objspace.c: ditto git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43613 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-11-08* ext/objspace/object_tracing.c: Add experimental methods to dumptmm1
objectspace as json: ObjectSpace.dump_all and ObjectSpace.dump(obj). These methods are useful for debugging reference leaks and memory growth in large ruby applications. [Bug #9026] [ruby-core:57893] [Fixes GH-423] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43585 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-11-07* ext/objspace/object_tracing.c: [DOC] trace_object_allocations_stopzzak
By @srawlins [Fixes GH-421] https://github.com/ruby/ruby/pull/421 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43572 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-10-17* ext/objspace/object_tracing.c (newobj_i): fix memory leak.ko1
There is possibility to remain info due to missing FREEOBJ event. FREEOBJ events are skipped while suppress_tracing state, for example, during trace events are invoking. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43327 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-10-16* ext/objspace/object_tracing.c (newobj_i): add workaround.ko1
some bugs hits this check. * ext/objspace/object_tracing.c (object_allocations_reporter_i): cast as pointer. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43318 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-10-16* ext/objspace/object_tracing.c: add new methodko1
ObjectSpace.trace_object_allocations_debug_start for GC debugging. If you encounter the BUG "... is T_NONE" (and so on) on your application, please try this method at the beggining of your app. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43310 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-09-30* ext/objspace/object_tracing.c: [DOC] Adjust rdoc formatting and fixzzak
small grammar typo git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43097 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-09-30* ext/objspace/object_tracing.c: [DOC] add some nots forko1
ObjectSpace::trace_object_allocations. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43096 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-09-30* ext/objspace/object_tracing.c: add new 3 methods to control tracing.ko1
* ObjectSpace::trace_object_allocations_start * ObjectSpace::trace_object_allocations_stop * ObjectSpace::trace_object_allocations_clear And some refactoring. * test/objspace/test_objspace.rb: add a test for new methods. * NEWS: add a description for new methods. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43095 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-06-18* ext/objspace/object_tracing.c: Return for ::allocation_generationzzak
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41387 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-06-18* ext/objspace/object_tracing.c: Document object_tracing methods.zzak
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41385 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-06-18* ext/objspace/object_tracing.c: Teach rdoc object_tracing.c [Bug #8537]zzak
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41382 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-06-06* ext/objspace/object_tracing.c: rename allocation_info tonari
lookup_allocation_info. At times I confused "struct allocation_info" with "function allocation_info". git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41104 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-06-06* ext/objspace/object_tracing.c: allocation_info function isn'tnari
called by any other file. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41103 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-05-28fix typotmm1
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40977 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-05-28object_tracing.c: fix argument typenobu
* ext/objspace/object_tracing.c (make_unique_str): fix argument type. use long for string length. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40975 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-05-28* ext/objspace/object_tracing.c: fix a bug reported atko1
"[ruby-core:55182] [ruby-trunk - Bug #8456][Open] Sugfault in Ruby Head" Care about the case TracePoint#path #=> `nil'. * ext/objspace/object_tracing.c: add two new methods: * ObjectSpace.allocation_class_path(o) * ObjectSpace.allocation_method_id(o) They are not useful for Object.new because they are always "Class" and :new. To trace more useful information, we need to maintain call-tree using call/return hooks, which is implemented by ll-prof <http://sunagae.net/wiki/doku.php?id=software:llprof> * test/objspace/test_objspace.rb: add a test. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40974 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-05-28ext/objspace: unexpand Author keywordsnobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40972 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-05-27suppress warningsnobu
* ext/-test-/postponed_job/postponed_job.c (pjob_register), (pjob_call_direct): none void function. * ext/-test-/tracepoint/tracepoint.c (tracepoint_track_objspace_events): adjust type to get rid of implicit cast. * ext/objspace/object_tracing.c (newobj_i): ditto. * ext/tk/tkutil/tkutil.c (tk_conv_args): adjust type against RHASH_SIZE(). git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40965 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-05-27* include/ruby/ruby.h: rename RUBY_INTERNAL_EVENT_FREE toko1
RUBY_INTERNAL_EVENT_FREEOBJ. * ext/-test-/tracepoint/tracepoint.c, ext/objspace/object_tracing.c, gc.c, vm_trace.c: catch up this change. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40959 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-05-27* ext/objspace/objspace.c: support ObjectSpace.trace_object_allocations.ko1
Read the following test to know HOWTO. This feature is a sample of RUBY_INTERNAL_EVENT. * test/objspace/test_objspace.rb: add a test. * ext/objspace/object_tracing.c: ditto. * gc.c (rb_gc_count): add. THis function returns GC count. * internal.h: add decl. of rb_gc_count(). Same as `GC.count'. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40957 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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