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2011-12-07Merge branch 'bjorn/erts/code-loading/OTP-9720'Björn Gustavsson
* bjorn/erts/code-loading/OTP-9720: BEAM loader: Fix bug that allowed loading of more than two versions Add code_SUITE:versions/1
2011-12-07Add code_SUITE:versions/1Björn Gustavsson
We did not have test case that ensures that the loader refuses to load a module if there already exists old code for the module.
2011-12-06Unlink test-proc instead of ensuring that it has died before stopping nodeRickard Green
Unlink the test-proc instead of monitoring it and waiting for it to terminate before stopping the node. This since an unlink is faster, simpler and in this case more stable.
2011-12-06Ensure test-proc is dead before stopping nodeRickard Green
2011-12-06Give slow machines more time to compute resultRickard Green
2011-12-06Allow more CPU time in waiting test-casesRickard Green
2011-12-05Skip thread_mseg_alloc_cache_clean() when no mseg_allocRickard Green
2011-12-02sensitive_SUITE: Fix spuriously failing recv_trace/1Björn Gustavsson
Only three messages are guaranteed to be in message queue of the tracer process. The second {trace_delivered,_,_} message may or may not be there.
2011-12-02Iron out bugs in Win64 found in daily buildsPatrik Nyblom
Almost all uses of the 'long' datatype is removed from VM and tests Emulator test now runs w/o drivers crashing Nasty abs bug fixed in VM as well as type errors in allocator debug functions Still one allocator test that fails, domain knowledge is needed to fix that. Fix type inconsistency in beam_load causing crashes
2011-11-29big_SUITE: Eliminate use of tuple funBjörn Gustavsson
It seems that a tuple fun was used only because erl_eval:expr/3 did not support passing in a real fun at the time that the test case was originally written.
2011-11-24emulator tests: Test compatibility with R13, not R12Björn Gustavsson
2011-11-18Merge branch 'sverk/hipe-without-fpe/OTP-9724'Sverker Eriksson
* sverk/hipe-without-fpe/OTP-9724: otp_build: Disable FPE by default on Linux stdlib: Make sure qlc_SUITE:otp_6964 restores backtrace_depth erts: Add test for inf/NaN intermediate float results hipe,erts: Allow hipe without floating point exceptions hipe: Fix bug in hipe_rtl_lcm:calc_killed_expr_bb erts: Rename macros used by float instructions without FPE
2011-11-17erts: Add test for inf/NaN intermediate float resultsSverker Eriksson
Make sure that badarith is thrown even if end result is not inf/NaN
2011-11-17Allow refc binaries in literal poolsBjörn Gustavsson
To simplify the implementation of literal pools (constant pools) for the R12 release, a shortcut was taken regarding binaries -- all binaries would be stored as heap binaries regardless of size. To allow a module containing literals to be unloaded, literal terms are copied when sent to another process. That means that huge literal binaries will also be copied if they are sent to another process, which could be surprising. Another problem is that the arity field in the header for the heap object may not be wide enough to handle big binaries. Therefore, bite the bullet and allow refc binaries to be stored in literal pools. In short, the following need to be changed: * Each loaded module needs a MSO list, linking all refc binaries in the literal pool. * When check_process_code/2 copies literals to a process heap, it must link each referenced binary into the MSO list for the process and increment the reference counter for the binary. * purge_module/1 must decrement the reference counter for each refc binary in the literal pool.
2011-11-17code_SUITE clean-up: Remove experimental 'constant_pool' optionBjörn Gustavsson
2011-11-13Merge branch 'rickard/generic-thr-queue/OTP-9632'Rickard Green
* rickard/generic-thr-queue/OTP-9632: Use generic lock-free queue for async threads Use generic lock-free queue for misc aux work Implement generic lock-free queue
2011-11-13Merge branch 'rickard/alloc-opt/OTP-7775'Rickard Green
* rickard/alloc-opt/OTP-7775: Optimize memory allocation Conflicts: erts/aclocal.m4 erts/emulator/hipe/hipe_bif_list.m4 erts/preloaded/ebin/erl_prim_loader.beam erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/init.beam erts/preloaded/ebin/otp_ring0.beam erts/preloaded/ebin/prim_file.beam erts/preloaded/ebin/prim_inet.beam erts/preloaded/ebin/prim_zip.beam erts/preloaded/ebin/zlib.beam
2011-11-13Use generic lock-free queue for async threadsRickard Green
Queues used for communication between async threads and scheduler threads have been replaced with lock-free queues. Drivers using the driver_async functionality are not automatically locked to the system anymore, and can be unloaded as any dynamically linked in driver. Scheduling of ready async jobs is now also interleaved in between other jobs. Previously all ready async jobs was performed at once.
2011-11-13Optimize memory allocationRickard Green
A number of memory allocation optimizations have been implemented. Most optimizations reduce contention caused by synchronization between threads during allocation and deallocation of memory. Most notably: * Synchronization of memory management in scheduler specific allocator instances has been rewritten to use lock-free synchronization. * Synchronization of memory management in scheduler specific pre-allocators has been rewritten to use lock-free synchronization. * The 'mseg_alloc' memory segment allocator now use scheduler specific instances instead of one instance. Apart from reducing contention this also ensures that memory allocators always create memory segments on the local NUMA node on a NUMA system.
2011-11-09Merge branch 'sverk/enif_inspect-memleak/OTP-9668'Sverker Eriksson
* sverk/enif_inspect-memleak/OTP-9668: erts: Fix memory leak of enif_inspect_* on independent environment
2011-11-07Merge branch 'bjorn/fun-improvements/OTP-9667'Björn Gustavsson
* bjorn/fun-improvements/OTP-9667: sys_pre_expand: Remove incorrect comment compiler: Eliminate use of deprecated erlang:hash/2 beam_asm: Fix broken NewIndex in fun entries beam_asm: Strenghten the calculation of Uniq for funs
2011-11-07beam_asm: Strenghten the calculation of Uniq for funsBjörn Gustavsson
Funs are identified by a triple, <Module,Uniq,Index>, where Module is the module name, Uniq is a 27 bit hash value of some intermediate representation of the code for the fun, and index is a small integer. When a fun is loaded, the triple for the fun will be compared to previously loaded funs. If all elements in the triple in the newly loaded fun are the same, the newly loaded fun will replace the previous fun. The idea is that if Uniq are the same, the code for the fun is also the same. The problem is that Uniq is only based on the intermediate representation of the fun itself. If the fun calls local functions in the same module, Uniq may remain the same even if the behavior of the fun has been changed. See http://erlang.org/pipermail/erlang-bugs/2007-June/000368.htlm for an example. As a long-term plan to fix this problem, the NewIndex and NewUniq fields was added to each fun in the R8 release (where NewUniq is the MD5 of the BEAM code for the module). Unfortunately, it turns out that the compiler does not assign unique value to NewIndex (if it isn't tested, it doesn't work), so we cannot use the <Module,NewUniq,NewIndex> triple as identification. It would be possible to use <Module,NewUniq,Index>, but that seems ugly. Therefore, fix the problem by making Uniq more unique by taking 27 bits from the MD5 for the BEAM code. That only requires a change to the compiler. Also update a test case for cover, which now fails because of the stronger Uniq calculation. (The comment in test case about why the Pid2 process survived is not correct.)
2011-11-07EEP-23: Allow variables in fun M:F/ABjörn Gustavsson
Currently, the external fun syntax "fun M:F/A" only supports literals. That is, "fun lists:reverse/1" is allowed but not "fun M:F/A". In many real-life situations, some or all of M, F, A are not known until run-time, and one is forced to either use the undocumented erlang:make_fun/3 BIF or to use a "tuple fun" (which is deprecated). EEP-23 suggests that the parser (erl_parse) should immediately transform "fun M:F/A" to "erlang:make_fun(M, F, A)". We have not followed that approach in this implementation, because we want the abstract code to mirror the source code as closely as possible, and we also consider erlang:make_fun/3 to be an implementation detail that we might want to remove in the future. Instead, we will change the abstract format for "fun M:F/A" (in a way that is not backwards compatible), and while we are at it, we will move the translation from "fun M:F/A" to "erlang:make_fun(M, F, A)" from sys_pre_expand down to the v3_core pass. We will also update the debugger and xref to use the new format. We did consider making the abstract format backward compatible if no variables were used in the fun, but decided against it. Keeping it backward compatible would mean that there would be different abstract formats for the no-variable and variable case, and tools would have to handle both formats, probably forever. Reference: http://www.erlang.org/eeps/eep-0023.html
2011-11-01Merge branch 'lukas/erts/large_float_cmp/OTP-9497'Lukas Larsson
* lukas/erts/large_float_cmp/OTP-9497: Update documentation after changes in integer and float comparison Do small optimisation on platforms with 32 bit Eterm Add tests for equality checking Optimize comparison of huge floats and smaller bignums Add tests for comparing large floats and small bignums Cleanup double_to_bignum conversion code Update size of tmp cmp bignum buffer Expand tests for float and number comparison Update heauristic to work on halfword Add heauristics bignum vs float checks Optimise bugnum and small comparison Add float vs integer comparison tests Update integer and floating point number comparisons
2011-10-31erts: Fix memory leak of enif_inspect_* on independent environmentSverker Eriksson
Affects enif_inspect_iolist_as_binary() on iolists and enif_inspect_binary() on byte-unaligned binaries. Also need to allocate inspection buffers in ERTS_ALC_T_NIF for process independent environments, as we don't know when and where the environment will be freed.
2011-10-20Merge branch 'bjorn/unicode-noncharacters/OTP-9624'Björn Gustavsson
* bjorn/unicode-noncharacters/OTP-9624: Allow noncharacter code points in unicode encoding and decoding
2011-10-18Merge branch 'fm/enif_is_number'Henrik Nord
* fm/enif_is_number: Add NIF function enif_is_number Conflicts: erts/emulator/beam/erl_nif_api_funcs.h OTP-9629
2011-10-13Allow noncharacter code points in unicode encoding and decodingBjörn Gustavsson
The two noncharacter code points 16#FFFE and 16#FFFF were not allowed to be encoded or decoded using the unicode module or bit syntax. That causes an inconsistency, since the noncharacters 16#FDD0 to 16#FDEF could be encoded/decoded. There is two ways to fix that inconsistency. We have chosen to allow 16#FFFE and 16#FFFF to be encoded and decoded, because the noncharacters could be useful internally within an application and it will make encoding and decoding slightly faster. Reported-by: Alisdair Sullivan
2011-10-11Add tests for equality checkingLukas Larsson
Test for checking equality on all float exponents Test in equality for all comparison tests
2011-10-11Add tests for comparing large floats and small bignumsLukas Larsson
2011-10-11Expand tests for float and number comparisonLukas Larsson
2011-10-11Add float vs integer comparison testsLukas Larsson
2011-09-29Merge branch 'dev' into majorBjörn-Egil Dahlberg
* dev: Update copyright years
2011-09-29Update copyright yearsBjörn-Egil Dahlberg
2011-09-29Merge branch 'dev' into majorLukas Larsson
* dev: Skip create_big_boot on platforms without crypto Remove test_server path instead of cwd for clash test Skip getaddr_v6 test if on the ipv4_only host Use static port for old solaris versions Extend time to wait for zone files to be loaded Allow out of memory exception for max_port checks Extend slave start timeout for windows tests Double timeout to make sure debug builds pass Use now instead of os:timestamp Increase timeout in scheduler_suspend for slow platforms Skip update_cpu_info if 'taskset' cannot be found
2011-09-29Merge branch 'lukas/fix_erts_testcases/OTP-9596' into devLukas Larsson
* lukas/fix_erts_testcases/OTP-9596: Skip create_big_boot on platforms without crypto Remove test_server path instead of cwd for clash test Skip getaddr_v6 test if on the ipv4_only host Use static port for old solaris versions Extend time to wait for zone files to be loaded Allow out of memory exception for max_port checks Extend slave start timeout for windows tests Double timeout to make sure debug builds pass Use now instead of os:timestamp Increase timeout in scheduler_suspend for slow platforms Skip update_cpu_info if 'taskset' cannot be found
2011-09-29Allow out of memory exception for max_port checksLukas Larsson
2011-09-29Double timeout to make sure debug builds passLukas Larsson
2011-09-29Use now instead of os:timestampLukas Larsson
This is done in order to improve timing when testing debug builds, especially ppc debug builds.
2011-09-28Merge branch 'dev' into majorBjörn Gustavsson
* dev: distribution_SUITE:bulk_send_bigbig/1: Fail with more information distribution_SUITE: Use unique slave node names beam_lib: Handle rare race in the crypto key server functionality busy_port_SUITE: Avoid crash in register/2 [wx] Re-generate code [wx] Remove optional shadowing clauses [wx] Remove warning [wx] Fix trailing whitespace [wx] Test colors in textctrl [wx] Fix cleanup memory references
2011-09-27distribution_SUITE:bulk_send_bigbig/1: Fail with more informationBjörn Gustavsson
2011-09-27distribution_SUITE: Use unique slave node namesBjörn Gustavsson
bad_dist_ext_connection_id/1 used the same names for the slave nodes as bad_dist_ext_receive/1, which would cause it to fail if bad_dist_ext_receive/1 failed.
2011-09-26busy_port_SUITE: Avoid crash in register/2Björn Gustavsson
Add an end_per_testcase/2 function to ensure that the process with the name 'busy_drv_server' has been killed before the next test case attempts to register a process with the same name.
2011-09-21Increase timeout in scheduler_suspend for slow platformsLukas Larsson
2011-09-21Skip update_cpu_info if 'taskset' cannot be foundLukas Larsson
2011-09-20Merge branch 'dev' into majorHenrik Nord
Conflicts: erts/aclocal.m4 erts/include/internal/ethread_header_config.h.in
2011-09-15Fix misspelling of accommodateTuncer Ayaz
2011-09-15Fix misspelling of exceedTuncer Ayaz
2011-09-08Merge branch 'dev' into majorHenrik Nord
2011-09-08Merge branch 'fm/enif_compare-64-to-32bits-cast' into devHenrik Nord
* fm/enif_compare-64-to-32bits-cast: Fix enif_compare on 64bits machines OTP-9533