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2017-08-11Break out most instructions from beam_emu.cBjörn Gustavsson
2017-08-08beam_makeops: Pretty-print the generated codeBjörn Gustavsson
2017-08-08beam_makeops: Define ARCH_32 and ARCH_64Björn Gustavsson
2017-08-08Introduce micro instructionsBjörn Gustavsson
beam_makeops will place all micro instructions in a block and generate goto instructions from one micro instruction to the next. It will also add adjustments of 'I' if necessary (if the micro instructions have different length).
2017-08-08Simplify specifying implementation of instructionsBjörn Gustavsson
Eliminate the need to write pre-processor macros for each instruction. Instead allow the implementation of instruction to be written in C directly in the .tab files. Rewrite all existing macros in this way and remove the %macro directive.
2017-07-27Merge branch 'maint'John Högberg
* maint: Updated OTP version Update release notes Update version numbers Fix doc for the 'quiet' option; it defaults to false asn1: Fix missing quotes of external encoding call Add a dedicated close function for TCP ports to prevent issues like ERL-430/448 Close TCP ports properly on send timeout erts: Add missing release note
2017-07-27Merge branch 'maint-20' into maintJohn Högberg
* maint-20: Updated OTP version Update release notes Update version numbers Fix doc for the 'quiet' option; it defaults to false asn1: Fix missing quotes of external encoding call Add a dedicated close function for TCP ports to prevent issues like ERL-430/448 Close TCP ports properly on send timeout erts: Add missing release note
2017-07-26Merge branch 'sverker/big-bxor-bug/ERL-450/OTP-14514' into maint-20Erlang/OTP
* sverker/big-bxor-bug/ERL-450/OTP-14514: erts: Fix bug in bxor of a big negative number
2017-07-26Merge branch 'john/erts/fix-tcp-send-timeout/OTP-14509/ERL-448' into maint-20Erlang/OTP
* john/erts/fix-tcp-send-timeout/OTP-14509/ERL-448: Add a dedicated close function for TCP ports to prevent issues like ERL-430/448 Close TCP ports properly on send timeout
2017-07-25Merge branch 'maint'Sverker Eriksson
2017-07-25Merge branch 'sverker/enif_whereis-bug/OTP-14523' into maintSverker Eriksson
* sverker/enif_whereis-bug: erts: Fix bug in enif_whereis_pid/port
2017-07-25Merge branch 'maint'John Högberg
2017-07-25Merge branch 'john/erts/use-lock-flags-in-lc' into maintJohn Högberg
2017-07-17erts: Replace usage of all erts_smp prefixes to just ertsLukas Larsson
2017-07-17Fix testcases after removal of non-smp emulatorLukas Larsson
2017-07-17erts: Cleanup alloc.types after non-smp removalLukas Larsson
2017-07-17erts: Cleanup configure and makefiles after non-smp removalLukas Larsson
2017-07-17erts: Cleanup removal of non-smp emulatorsLukas Larsson
2017-07-17erts: Remove ERTS_SMP and USE_THREAD definesLukas Larsson
This refactor was done using the unifdef tool like this: for file in $(find erts/ -name *.[ch]); do unifdef -t -f defile -o $file $file; done where defile contained: #define ERTS_SMP 1 #define USE_THREADS 1 #define DDLL_SMP 1 #define ERTS_HAVE_SMP_EMU 1 #define SMP 1 #define ERL_BITS_REENTRANT 1 #define ERTS_USE_ASYNC_READY_Q 1 #define FDBLOCK 1 #undef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT #define ERTS_POLL_ASYNC_INTERRUPT_SUPPORT 0 #define ERTS_POLL_USE_WAKEUP_PIPE 1 #define ERTS_POLL_USE_UPDATE_REQUESTS_QUEUE 1 #undef ERTS_HAVE_PLAIN_EMU #undef ERTS_SIGNAL_STATE
2017-07-16Fix a typo in comment in beam_emu : purpouses -> purposesAlexandre Manuel
2017-07-13Merge branch 'maint'Sverker Eriksson
2017-07-13Merge branch 'sverker/big-bxor-bug/ERL-450/OTP-14514' into maintSverker Eriksson
* sverker/big-bxor-bug/ERL-450/OTP-14514: erts: Fix bug in bxor of a big negative number
2017-07-12erts: Fix bug in bxor of a big negative numberSverker Eriksson
Wrong result for (X bsl WS) bxor Y. where X is any negative integer Y is any integer that does not require more words than X WS is erlang:system_info(wordsize) or larger Fix: The subtraction of 1 (for 2-complement conversion) must be carried along all the way to the last words.
2017-07-11erts: Fix bug in enif_whereis_pid/portSverker Eriksson
that could cause heap corruption if whereis lookup conflicts with other register updater AND other thread sends on-heap message while main lock is released. Also improved enif_whereis from dirty nifs by passing c_p as NULL.
2017-07-11Use erl_lock_flags in lock checkingJohn Högberg
2017-07-10Merge pull request #1505 from mikpe/erts-alignmentJohn Högberg
erts: ensure alignment of VM core types
2017-07-10josevalim/jv-op-stacktrace-entry/PR-1478/OTP-14508Lukas Larsson
Add stacktrace entries to BIF calls from emulator
2017-07-10Add a dedicated close function for TCP ports to prevent issues like ERL-430/448John Högberg
2017-07-10Close TCP ports properly on send timeoutJohn Högberg
2017-07-07Add a proper type for lock optionsJohn Högberg
2017-07-07Add stacktrace entries to BIF calls from emulatorJosé Valim
The goal of this change is to improve debugging of emulator calls. For example, the following code rem(1, y) will error with atom `badarith` when y is 0 and the stacktrace has no entry for `erlang:rem/2`, making such cases very hard to debug. This patch makes it so the stacktrace includes `erlang:rem(1, 0)`. The following emulator BIFs have been changed: * band/2 * bnot/1 * bor/2 * bsl/2 * bsr/2 * bxor/2 * div/2 * element/2 * int_div/2 * rem/2 * sminus/2 * splus/2 * stimes/2
2017-07-07Merge pull request #1498 from michalmuskala/new_map_litBjörn Gustavsson
Introduce new_map_lit operation in the loader OTP-14502
2017-07-07erts: ensure alignment of VM core typesMikael Pettersson
2017-07-06Merge branch 'maint'John Högberg
2017-07-06Merge branch 'john/erts/runtime-lcnt' into maintJohn Högberg
* john/erts/runtime-lcnt: Document rt_mask and add warnings about copy_save Add an emulator test suite for lock counting Break erts_debug:lock_counters/1 into separate BIFs Allow toggling lock counting at runtime Move lock flags to a common header Enable register_SUITE for lcnt builds Enable lcnt smoke test on all builds that have lcnt enabled Make lock counter info independent of the locks being counted OTP-14412 OTP-13170 OTP-14413
2017-07-06Add an emulator test suite for lock countingJohn Högberg
OTP-14413
2017-07-06Break erts_debug:lock_counters/1 into separate BIFsJohn Högberg
2017-07-06Allow toggling lock counting at runtimeJohn Högberg
The implementation is still hidden behind ERTS_ENABLE_LOCK_COUNT, and all categories are still enabled by default, but the actual counting can be toggled at will. OTP-13170
2017-07-06Move lock flags to a common headerJohn Högberg
2017-07-06Enable register_SUITE for lcnt buildsJohn Högberg
It was disabled for performance reasons, and the new implementation handles it just fine (roughly half as fast as without lcnt).
2017-07-06Merge branch 'maint'Sverker Eriksson
2017-07-06Merge branch 'sverker/prealloc-race-bug/maint' into maintSverker Eriksson
* sverker/prealloc-race-bug/maint: erts: Increase pre-allocated blocks #ifdef DEBUG
2017-07-06Introduce new_small_map_lit opMichal Muskala
Take advantage of the fact that small maps have a tuple for keys. When new map is constructed and all keys are literals, we can construct the entire keys tuple as a literal. This should reduce the memory of maps created with literal keys almost by half, since they all can share the same keys tuple.
2017-07-06Merge pull request #1499 from josevalim/jv-tuple-callsBjörn Gustavsson
Make tuple calls opt-in OTP-14497
2017-07-04Make tuple calls opt-inJosé Valim
Tuple calls is the ability to invoke a function on a tuple as first argument: 1> Var = dict:new(). {dict,0,16,16,8,80,48, {[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[]}, {{[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[]}}} 2> Var:size(). 0 This behaviour is considered by most to be undesired and confusing, especially when it comes to errors. For example, imagine you invoke "Mod:new()" where a Mod is an atom and you accidentally pass {ok, dict}. It raises: {undef,[{ok,new,[{ok,dict}],[]},...]} As it attempts to invoke ok:new/1, which is really hard to debug as there is no call to new/1 on the source code. Furthemore, this behaviour is implemented at the VM level, which imposes such semantics on all languages running on BEAM. Since we cannot remove the behaviour above, this proposal makes the behaviour opt-in with a compiler flag: -compile(tuple_calls). This means that, if a codebase relies on this functionality, they can keep compatibility by adding configuring their build tool to always use the 'tuple_calls' flag or explicitly on each module. As long as the compile attribute above is listed, the codebase will work on old and new Erlang versions alike. The only downside of the current implementation is that modules compiled on OTP 20 that rely on 'tuple_calls' will have to be recompiled to run with 'tuple_calls' on OTP 21+.
2017-07-04Merge branch 'maint'John Högberg
* maint: Updated OTP version Update release notes Update version numbers erts: Fix bug in quick alloc Fix old length usage in string stdlib: Fix bug in proc_lib Support arbitrary crash report in proc_lib.
2017-07-04Merge branch 'maint-20' into maintJohn Högberg
* maint-20: Updated OTP version Update release notes Update version numbers erts: Fix bug in quick alloc Fix old length usage in string stdlib: Fix bug in proc_lib Support arbitrary crash report in proc_lib.
2017-07-03Merge pull request #1491 from eltex-ecss/e2k_supportLukas Larsson
Support e2k platform OTP-14492
2017-06-30erts: Increase pre-allocated blocks #ifdef DEBUGSverker Eriksson
Choose a "lagom" low value to provoke both fallback on erts_alloc AND thread racing in lockless deallocation queue.
2017-06-30Merge branch 'sverker/prealloc-race-bug/OTP-14491' into maint-20Erlang/OTP
* sverker/prealloc-race-bug/OTP-14491: erts: Fix bug in quick alloc
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