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2016-11-23erts: Secure abi backward compat for tracer nifsSverker Eriksson
and simplify the code by handling the compatibility stuff at loading by creating modern struct copies in create_lib().
2016-11-07Merge branch 'sverker/distr-debug/PR-1174'Sverker Eriksson
2016-11-03Merge branch 'gandrade/fmod/PR-1216/OTP-14000'Björn Gustavsson
* gandrade/fmod/PR-1216/OTP-14000: Add test cases for math:fmod/2 BIF Support math:fmod/2 BIF on compiler Add math:fmod/2 BIF
2016-11-02Add math:fmod/2 BIFGuilherme Andrade
Returns the (floating point) remainder of first argument divided by second argument.
2016-11-02Merge branch 'sverker/hipe-load_nif-error/OTP-14002'Sverker Eriksson
2016-11-01erts: Add notsup error for load_nif/2 from hipe codeSverker Eriksson
2016-10-31Merge branch 'sverker/hipe-fun-purge'Sverker Eriksson
2016-10-27Merge branch 'maint'Sverker Eriksson
2016-10-27Merge branch 'sverker/purge-fix/OTP-13925' into maintSverker Eriksson
2016-10-26erts: Fix new fun purge strategy for hipeSverker Eriksson
2016-10-26erts: Remove unused argument to hipe_set_closure_stubSverker Eriksson
2016-10-26Merge branch 'master' into sverker/hipe-fun-purgeSverker Eriksson
2016-10-26erts: Avoid delayed fun undef raceSverker Eriksson
Avoid suspending fun caller not just if purge is already done but also if purge of another module has started. Another purge of the same module again cannot happen as making current to old transition includes thread progress.
2016-10-26Merge branch 'maint'Lukas Larsson
2016-10-26Merge branch 'lukas/erts/tracing/fix_dead_tracer_check/ERL-274/OTP-13928' ↵Lukas Larsson
into maint * lukas/erts/tracing/fix_dead_tracer_check/ERL-274/OTP-13928: erts: Do tracer liveness check on current tracer
2016-10-19Merge branch 'gsantomaggio/erts/system_info_atoms/PR-1198/OTP-13976'Lukas Larsson
* gsantomaggio/erts/system_info_atoms/PR-1198/OTP-13976: erts: Fix some system_info docs inconsistencies Add system_info(atom_limit)
2016-10-17Merge branch 'sverker/hipe-code-loadnpurge/OTP-13968'Sverker Eriksson
* sverker/hipe-code-loadnpurge: (35 commits) erts: Cleanup dead code kernel,hipe: Fix dialyzer warnings erts: Replace unsafe Module.first_hipe_ref erts: Disable DBG_TRACE_MFA for debug build kernel: Fix code_SUITE:upgrade for non-hipe erts: Cleanup hipe trampoline code erts: Remove dead alloc stats in hipe_amd64.c erts: Remove code_SUITE:make_stub and make_stub_many_funs erts: Let code:make_stub_module raise 'notsup' erts: Fix bug in stack walk on risc erts: Fix old leak for ppc hipe code erts: Fix old leak for arm hipe code erts: Fix old leak of sparc hipe code erts: Fix old leak of hipe code on x86 32-bit erts: Enable exec_alloc for all hipe architectures erts: Remove debug printout for hipe loader state erts: Free hipe_refs and hipe_sdesc of a failed load erts: Refactor out hipe_purge_refs/sdesc erts: Refactor hipe_loader_state_dtor into a true destructor hipe: TRY fix llvm external calls to own module ...
2016-10-17erts: Cleanup dead codeSverker Eriksson
2016-10-14Merge branch 'sverker/proc-dict-atom-hash/PR-1194'Sverker Eriksson
* sverker/proc-dict-atom-hash: kernel: Add test pdict_SUITE:literals erts: Refactor process dict hash pre-calculation Use atom value as hash value in process dictionary
2016-10-14Merge branch 'sverker/fix-alloc-asserts'Sverker Eriksson
2016-10-14Merge branch 'master' into sverker/hipe-code-loadnpurgeSverker Eriksson
Conflicts: erts/emulator/beam/beam_bif_load.c erts/emulator/beam/beam_load.c and added macro DBG_TRACE_MFA_P in beam_load.h
2016-10-14erts: Replace unsafe Module.first_hipe_refSverker Eriksson
with hash table mod2mfa_tab
2016-10-14erts: Disable DBG_TRACE_MFA for debug buildSverker Eriksson
2016-10-14erts: Let code:make_stub_module raise 'notsup'Sverker Eriksson
if hipe is disabled. Makes the code simpler to just ifdef away a lot of hipe stuff.
2016-10-14erts: Enable exec_alloc for all hipe architecturesSverker Eriksson
For non-amd64 it's a "normal" allocator with a wrapper around mseg_alloc to call mprotect(PROT_EXEC).
2016-10-14erts: Refactor hipe_loader_state_dtor into a true destructorSverker Eriksson
that is only called once. Basically switch hipe_free_loader_state and hipe_loader_state_dtor.
2016-10-14hipe,erts: Remove cached fun 'native_address'Sverker Eriksson
Did not work with purge and made worse by new purge strategy. Did yield terrible performance when fun thing is created *before* fun code is loaded. Like when receiving not yet loaded fun from other node. The cached 'native_address' in ErlFunThing will not be updated leading to mode switch and error_handler being called for every call to the fun from native code.
2016-10-14erts: Fix early hipe patch loadingSverker Eriksson
by introducing hipe_bifs:commit_patch_load/1 that creates the HipeModule.
2016-10-14erts: Move new hipe ref and sdesc lists to loader stateSverker Eriksson
2016-10-14erts: Fill freed EXEC memory with illegal instructions on DEBUGSverker Eriksson
to get a nice SIGILL crash. For x86 and x86_64 only.
2016-10-14erts: Check hipe stack in check_process_codeMagnus Lång
This is part of commit 1bd508921dd93086b05e7d0038b816b36c421d86. I did not include the fun-checking as we have a new purge strategy for funs in OTP 20. That remains to be solved some other way for hipe.
2016-10-14Add a loader state for HiPE code loadingMagnus Lång
Just like the BEAM loader state (as returned by erlang:prepare_loading/2), the HiPE loader state is contained in a magic binary. Eventually, we will separate HiPE loading into a prepare and a finalise phase, like the BEAM loader, where the prepare phase will be implemented by hipe_unified_loader and the finalise phase be implemented in C by hipe_load.c and beam_load.c, making prepare side-effect free and finalise atomic. The finalise phase will be exposed through the erlang:finish_loading/1 API, just like the BEAM loader, as this will allow HiPE and BEAM modules to be mixed in the same atomic "commit". The usage of a loader state makes it easier to keep track of all resources allocated during loading, and will not only make it easy to prevent leaks when hipe_unified_loader crashes, but also paves the way for proper, leak-free, unloading of HiPE modules.
2016-10-13Add system_info(atom_limit)Gabriele Santomaggio
Add system_info(atom_limit) to provide a way to retrieve the maximum number of atoms allowed. Add tests and documentation for it too. Also split system_info_SUITE:start_node/2 to start_node_ets/2 and start_node_atm/2 to avoid code duplication.
2016-10-12Merge branch 'lukas/erts/beam_func_info_struct/OTP-13821'Lukas Larsson
* lukas/erts/beam_func_info_struct/OTP-13821: erts: Fix some dtrace related compile issues erts: Refactor rename Export.code[] to Export.beam[] erts: Improve printouts for some etp commands erts: Fix erts_debug:df with new func_info erts: Refactor find_function_from_pc to return MFA erts: Refactor out func_info into struct
2016-10-12erts: Add strict size assert to fix allocSverker Eriksson
and remove outdated min size adjustment. The is similar to lost commit 31bc414dc9639ccf94f9011ed32 except we now assume and assert strict size equality.
2016-10-12erts: Fix some dtrace related compile issuesLukas Larsson
2016-10-12erts: Refactor rename Export.code[] to Export.beam[]Sverker Eriksson
to avoid scary merge errors.
2016-10-12erts: Fix erts_debug:df with new func_infoLukas Larsson
2016-10-12erts: Refactor find_function_from_pc to return MFALukas Larsson
2016-10-12erts: Refactor out func_info into structLukas Larsson
This commit adds two new structs to be used to represent erlang code in erts. ErtsCodeInfo is used to describe the i_func_info header that is part of all Export entries and the prelude of each function. This replaces all the BeamInstr * that were previously used to point to these locations. After this change the code should never use BeamInstr * with offsets to figure out different parts of the func_info header. ErtsCodeMFA is a struct that is used to descripe a MFA in code. It is used within ErtsCodeInfo and also in Process->current. All function that previously took Eterm * or BeamInstr * to identify a MFA now use the ErtsCodeMFA or ErtsCodeInfo where appropriate. The code has been tested to work when adding a new field to the ErtsCodeInfo struct, but some updates are needed in ops.tab to make it work.
2016-10-10erts: Refactor process dict hash pre-calculationSverker Eriksson
with new function erts_pd_make_hx()
2016-10-10Use atom value as hash value in process dictionaryVictor Ren
In the origin implementation, the hash value of atom term is retrieved from the atom table. Reading the atom table is expensive since it is in memory and leads to more cache missing. The size of a process dictionary is usually small. The atom value (the index) is unique and can be hash value for it. Using the atom value directly should be more efficient.
2016-10-10erts: Improve hipe load/upgrade/purge machinerySverker Eriksson
A step toward better integration of hipe load and purge Highlights: * code_server no longer needs to call hipe_unified_loader:post_beam_load/1 Instead new internal function hipe_redirect_to_module() is called by loading BIFs to patch native call sites if needed. * hipe_purge_module() is called by erts_internal:purge_module/2 to purge any native code. * struct hipe_mfa_info redesigned and only used for exported functions that are called from or implemented by native code. A list of native call sites (struct hipe_ref) are kept for each hipe_mfa_info. * struct hipe_sdesc used by hipe_find_mfa_from_ra() to build native stack traces.
2016-10-10erts: Refactor module_start_stagingSverker Eriksson
with a copy_module() function.
2016-10-05Merge branch 'master' into sverker/master/load_nif-print-init-errorSverker Eriksson
2016-10-04erts: Print error code from failed NIF load/upgrade/reloadSverker Eriksson
in Text part of error tuple, like {error, {load, "Library load-call unsuccessful (606)}}
2016-10-04erts: Do tracer liveness check on current tracerLukas Larsson
This fixes a fault introduced in 19.0 where an invalid tracer would block setting of a new tracer on a process.
2016-09-29Fix minor soft purge bugRickard Green
A process calling a fun from a module currently being soft-purged could race with failure of the soft purge. When this happened the call triggered loading of the module which erroneously would load new code for the module in the case no new generation was currently loaded.
2016-09-23Merge branch 'sverker/remove-nif-reload/OTP-13908'Sverker Eriksson
* sverker/remove-nif-reload: erts: Cuddle nif_SUITE:consume_timeslice erts: Remove old doc note for erlang:load_nif erts: Remove deprecated nif 'reload' feature erts: Fix trace_nif_SUITE to load nif lib only once
2016-09-21Merge branch 'sverker/ets-load-factor/OTP-13903'Sverker Eriksson
* sverker/ets-load-factor: erts: Unify reduction count for ets:select stdlib: Cuddle ets_SUITE for valgrind stdlib: Fix ets_SUITE:smp_select_delete erts: Tweak ets grow/shrink to keep up at contention erts: Fix ets_SUITE:memory erts: Suppress failed ETS memory checks erts: Reduce ets hash load factor erts: Enable a smaller first hash segment for ets erts: Redesign ets with separate segment tables erts: Remove unnecessary access of 'is_resizing' erts: Add ErtsSizeofMember macro erts: Add ErtsContainerStruct_ for array members