aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator
AgeCommit message (Collapse)Author
2017-10-27Correct erlang:is_builtin/3 for apply/2 and yield/0Björn Gustavsson
erlang:is_builtin(erlang, M, F) returns false for apply/2 and yield/0. The documentation for erlang:is_builtin/3 says that it returns true for BIFs that are implemented in C. apply/2 and yield/0 are implemented in C (as BEAM instructions), and therefore the correct return value is true. Also see a similar argument that was made for apply/3 in the past: http://erlang.org/pipermail/erlang-bugs/2015-October/005101.html https://bugs.erlang.org/browse/ERL-500
2017-10-25Merge branch 'maint'John Högberg
* maint: Updated OTP version Update release notes Update version numbers erts: Fix so that bind correct schedulers Update version Fix error handling when decoding an AVP with an alternate dictionary Remove unused function arguments Fix faulty recursion vsn -> 2.1.2 Update appup for ERIERL-14684 Fix speling error 'sndbuf' -> 'recbuf' Add zlib:set_controlling_process/2
2017-10-25Merge branch 'maint-20' into maintJohn Högberg
* maint-20: Updated OTP version Update release notes Update version numbers erts: Fix so that bind correct schedulers Update version Fix error handling when decoding an AVP with an alternate dictionary Remove unused function arguments Fix faulty recursion vsn -> 2.1.2 Update appup for ERIERL-14684 Fix speling error 'sndbuf' -> 'recbuf' Add zlib:set_controlling_process/2
2017-10-25Merge branch 'lukas/erts/fix-cpu-bind-w-modifies-scheduler-avail/OTP-14694' ↵Erlang/OTP
into maint-20 * lukas/erts/fix-cpu-bind-w-modifies-scheduler-avail/OTP-14694: erts: Fix so that bind correct schedulers
2017-10-23erts: Fix so that bind correct schedulersLukas Larsson
When the cpu ids and scheduler ids don't match, the end schedulers could end up not being bound when they should be. example: > taskset -c 1-3 erl +S 4 +sbts > erlang:system_info(scheduler_bindings). {1,2,3,unbound} This fix makes it so that all cores are used to bind schedulers.
2017-10-23Merge branch 'bjorn/compiler/match-literals'Björn Gustavsson
* bjorn/compiler/match-literals: Optimize instructions for comparing a register with a literal Optimize matching of literals for single-valued types
2017-10-21Optimize instructions for comparing a register with a literalBjörn Gustavsson
We can avoid calling eq() from the is_eq_exact_literal/3 and is_ne_exact_literal/3 instructions if the source operand is an immediate (since a literal is either a boxed or a list, never an immediate).
2017-10-20Merge branch 'maint'Björn Gustavsson
* maint: Bump version of crash dumps to 0.4 Verify that binaries of different sizes are dumped correctly Don't dump literal areas that are not referenced at all Dump literals separately to avoid incomplete heap data Implement dumping of maps in crash dumps Buffer writing of crash dumps Conflicts: erts/emulator/beam/erl_alloc.types
2017-10-18Merge branch 'bjorn/erts/cuddle-with-tests'Björn Gustavsson
* bjorn/erts/cuddle-with-tests: Eliminate use of deprecated functions in string Eliminate warnings for ignoring the result of an expression
2017-10-18Bump version of crash dumps to 0.4Björn Gustavsson
2017-10-18Don't dump literal areas that are not referenced at allBjörn Gustavsson
2017-10-18Dump literals separately to avoid incomplete heap dataBjörn Gustavsson
When a literal was used from several processes, the literal would be dumped in only one of the processes. The other processes that referenced the literals would have incomplete heap data.
2017-10-18Implement dumping of maps in crash dumpsBjörn Gustavsson
Maps would be dumped as the atom 'undefined', which is not very informative.
2017-10-18Buffer writing of crash dumpsBjörn Gustavsson
Writing of crash dumps were done using unbuffered IO. This is slow since many small writes are done. Use a FILE* with an allocated buffer to obtain buffered IO. I wrote a small test program that created 50000 binaries of 200 bytes each and then created a crash dump. The crash dumping was an order of magnitude faster with buffered IO than without.
2017-10-17Merge branch 'sverker/on_load-nonblocking/OTP-14680'Sverker Eriksson
* sverker/on_load-nonblocking/OTP-14680: erts: Remove scheduler blocking during finish_after_on_load_2
2017-10-17Merge branch 'maint'Sverker Eriksson
2017-10-17Merge branch 'sverker/dist-send-noreply-opt/OTP-14689' into maintSverker Eriksson
* sverker/dist-send-noreply-opt/OTP-14689: erts: Improve distribution send operations
2017-10-13Eliminate use of deprecated functions in stringBjörn Gustavsson
2017-10-13Merge pull request #1596 from bjorng/bjorn/enhance-try-catchBjörn Gustavsson
(Slightly) optimize catch and try/catch OTP-14683
2017-10-13Merge pull request #1599 from kostis/exception_SUITEBjörn Gustavsson
Explicitly disable HiPE's range analysis
2017-10-12Merge branch 'lukas/erts/use_SIGRTMIN_for_sys_suspend/OTP-14682'Lukas Larsson
* lukas/erts/use_SIGRTMIN_for_sys_suspend/OTP-14682: erts: Use SIGRTMIN on linux for sys_suspend
2017-10-12erts: Use SIGRTMIN on linux for sys_suspendLukas Larsson
The Linux real-time signal is better used on Linux for suspending schedulers during shutdown as it doesn't collide with SIGUSR2 usage of other applications.
2017-10-12Merge branch 'lukas/erts/poll-thread/OTP-14346'Lukas Larsson
* lukas/erts/poll-thread/OTP-14346: erts: Make a copy of erl_poll.c to help debuggers
2017-10-12Merge branch 'rickard/null-chars/ERL-370/OTP-14543'Rickard Green
* rickard/null-chars/ERL-370/OTP-14543: Don't allow null chars in various strings Conflicts: erts/emulator/beam/erl_alloc.types erts/preloaded/ebin/erlang.beam
2017-10-12Merge branch 'maint'Rickard Green
* maint: Revert "Merge branch 'rickard/null-char-filenames/ERL-370/OTP-14543' into maint"
2017-10-12Revert "Merge branch 'rickard/null-char-filenames/ERL-370/OTP-14543' into maint"Rickard Green
This reverts commit 0717a2194e863f3a78595184ccc5637697f03353, reversing changes made to 71a40658a0cef8b3e25df3a8e48a72d0563a89bf.
2017-10-12erts: Remove scheduler blocking during finish_after_on_load_2Sverker Eriksson
for normal case. We still block for default trace and hipe.
2017-10-12Merge branch 'maint'Lukas Larsson
Conflicts: erts/emulator/beam/beam_bp.c erts/emulator/beam/erl_process.c
2017-10-12Merge branch 'lukas/erts/tracing/recv_exit_signal_deadlock/OTP-14678' into maintLukas Larsson
* lukas/erts/tracing/recv_exit_signal_deadlock/OTP-14678: erts: Fix lock order when recv tracing trapped exit signal
2017-10-12Merge branch 'lukas/erts/fix_caller_trace_for_apply_bifs/OTP-14677' into maintLukas Larsson
* lukas/erts/fix_caller_trace_for_apply_bifs/OTP-14677: erts: Fix caller trace for apply bifs
2017-10-12erts: Fix lock order when recv tracing trapped exit signalLukas Larsson
2017-10-11Don't allow null chars in various stringsRickard Green
Various places that now reject null chars inside strings - Primitive file operations reject it in filenames. - Primitive environment variable operations reject it in names and values. - os:cmd() reject it in its input. Also '=' characters are rejected by primitive environment variable operations in environment variable names. Documentation has been updated to document null characters in these types of data as invalid. Currently these operations accept null chars at the end of strings, but that will change in the future.
2017-10-11Add zlib:set_controlling_process/2John Högberg
2017-10-11Eliminate warnings for ignoring the result of an expressionBjörn Gustavsson
2017-10-10Explicitly disable HiPE's range analysisKostis Sagonas
when/if compiling this file to native code to check its exception behaiour. Related to the discussion in #1586.
2017-10-09Slightly speed up try/catchBjörn Gustavsson
The try_end and try_case instructions are implemented the same way (try_case is translated to try_end by the loader). We can do better than that. We know that try_case will only be executed when an exception has been caught. Therefore, we know that x(0) is the non-value and that x(1) through x(3) need to be shifted down to x(0) through x(2). There is no need to test x(0) before shifting down. try_end does not need the register shifting code at all.
2017-10-09Merge branch 'sverker/bad-dist-msg-bug/ERIERL-80/OTP-14661' into maint-20Erlang/OTP
* sverker/bad-dist-msg-bug/ERIERL-80/OTP-14661: erts: Fix bug when detecting bad dist message Add distribution_SUITE:bad_dist_ext_size
2017-10-09erts: Make a copy of erl_poll.c to help debuggersLukas Larsson
Especially lldb seems to get very confused when the same source file is used by two different object files.
2017-10-09erts: Fix caller trace for apply bifsLukas Larsson
Bifs that are called through the export entry using i_call_last could have their cp set to return_trace, just like any other call. So we have to unwind the trace stack to get the correct cp. Not doing this creates a lot of issues for fprof.
2017-10-09Merge branch 'bjorn/erts/pack-with-opcode/OTP-14325'Björn Gustavsson
OTP-14327 OTP-14340 * bjorn/erts/pack-with-opcode/OTP-14325: Pack operands for combined instructions into the instruction word beam_makeops: Use named arguments for the code generation functions Optimize packing for "optional use" operands beam_makeops: Print the instruction name for fatal packing errors Introduce a syntax for marking operands as "optional use" beam_makeops: Refactor parsing of specific instructions Optimize instruction prefetch Pack operands into the instruction word Use 32-bits pointers to C code Move LD flags for hipe from Makefile.in to configure.in beam_disasm: Correct printing of y registers ops.tab: Slightly optimize badmatch on a Y register macros.tab: Fix assertion in SET_I_REL()
2017-10-09Pack operands for combined instructions into the instruction wordBjörn Gustavsson
The operands for the first part of a combined instruction (the entry point following the OpCase() label) can safely be packed into the instruction word. This commit will make each of the following instructions one word shorter: bs_context_to_binary_x i_band_xcjtd i_bs_get_binary_all_reuse_xft i_bs_get_integer_imm_xWtftx i_bs_get_integer_small_imm_xWftx i_bs_init_bits_fail_xjtx i_bs_init_bits_fail_yjtx i_bs_init_bits_fail_heap_sIjtx i_bs_init_bits_heap_WItx i_bs_init_fail_xjtx i_bs_init_fail_yjtx i_bs_init_fail_heap_sIjtx i_bs_init_heap_WItx i_bs_start_match2_xfttx i_bs_start_match2_yfttx i_element_xjsd i_element_yjsd i_fast_element_xjId i_fast_element_yjId i_increment_xWtd i_increment_yWtd i_jump_on_val_xfIW i_jump_on_val_yfIW i_jump_on_val_zero_xfI i_jump_on_val_zero_yfI i_minus_xxjtd i_plus_xxjtd i_plus_xyjtd i_put_tuple_xI i_put_tuple_yI i_rem_xxjtd i_select_tuple_arity_xfI i_select_tuple_arity_yfI i_select_tuple_arity2_xfAA i_select_tuple_arity2_yfAA i_select_val2_xfcc i_select_val2_yfcc i_select_val_bins_xfI i_select_val_bins_yfI i_select_val_lins_xfI i_select_val_lins_yfI
2017-10-09beam_makeops: Use named arguments for the code generation functionsBjörn Gustavsson
The number of arguments has become unwieldy.
2017-10-05Merge branch 'lukas/erts/beam-emu-vars'Lukas Larsson
* lukas/erts/beam-emu-vars: erts: Add makefile target to check emu register allocation
2017-10-05Optimize packing for "optional use" operandsBjörn Gustavsson
Operands that are marked with a "?" are not always used when an instruction is executed. Enhance the packing algorithm to place optional use operands into the instruction word even they are not the first operand (as long as the total instruction size stays the same). Here are the instructions that will be packed differently because of this change: allocate_heap t I t? allocate_heap_zero t I t? test_heap I t? i_bs_get_integer_8 x f? x i_bs_get_integer_16 x f? x i_bs_get_integer_32 x f? x
2017-10-05beam_makeops: Print the instruction name for fatal packing errorsBjörn Gustavsson
Having the instruction name available in the functions that implement packing also simplifies debugging.
2017-10-05Introduce a syntax for marking operands as "optional use"Björn Gustavsson
Introduce a syntax to mark an operand that is not always used when an instrution is executed. Example of such operands are the fail label for is_nil or the number of live registers for an allocate instruction. Use a question mark to annotate optional use: is_nil f? xy allocate t t?
2017-10-05beam_makeops: Refactor parsing of specific instructionsBjörn Gustavsson
2017-10-05Optimize instruction prefetchBjörn Gustavsson
2017-10-05Pack operands into the instruction wordBjörn Gustavsson
On 64-bit machines where the C code is always at address below 4Gb, pack one or more operands into the instruction word.
2017-10-05Use 32-bits pointers to C codeBjörn Gustavsson
On a 64-bit machine, we only need 32 bits to store a pointer to the C code that implements a BEAM instruction. Refactor the code to only use the lower 32 bits of each instruction word, and take care to preserve the high 32 bits.
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-21 06:20:03 +0000