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2011-11-30Remove dependency on R12 from a qlc test caseHans Bolinder
The new file lib/stdlib/test/qlc_SUITE_data/join_info_compat.erl was created on an R12B node.
2011-11-28Merge branch 'bjorn/compiler/options/OTP-9752'Björn Gustavsson
* bjorn/compiler/options/OTP-9752: filename documentation: Recommend against using filename:find_src/1,2 Teach filename:find_src/1,2 to handle slim or stripped BEAM files filename: Eliminate failing call to Mod:module_info(source_file) filename.erl:filter_options/1: Remove handling of dead options compiler: Don't include {cwd,_} in module_info(compile) compiler: Don't include source code options in module_info(compile) hipe: Teach hipe to handle slim or stripped BEAM files
2011-11-24Teach filename:find_src/1,2 to handle slim or stripped BEAM filesBjörn Gustavsson
filename:find_src/1,2 will crash when asked to find the source corresponding to a BEAM with no compilation options. A BEAM file can be missing compilation options if it has been stripped using beam_lib:strip/1 or compiled using the undocumented 'slim' option. Why this matters: If ERL_COMPILE_OPTIONS is set to +slim before building Erlang/OTP, there will be a crash in 'igor' during the building of the public_key application. ('igor' merges several source code files, and uses filename:find_src/1,2 to find the source code.) Change filename:find_src/1,2 to return an empty option list if there are no options in the BEAM file. Noticed-by: Per Hedeland
2011-11-23tar_SUITE: Don't do symlink tests on WindowsBjörn Gustavsson
2011-11-18Merge branch 'pan/binary_match_scope/OTP-9701'Patrik Nyblom
* pan/binary_match_scope/OTP-9701: Remove remaining gcc 4.6 assigned-but-not-used warnings from erts Remove GCC 4.6 set-but-not-used warning from erl_bif_binary Make binary:match with scope return correct values
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
2011-11-18Merge branch 'siri/sasl/upgrade-erts/OTP-9438'Siri Hansen
* siri/sasl/upgrade-erts/OTP-9438: Fix bug in erts upgrade on windows Add release vsn info to erts_vsn_changed warning Check for sasl application in systools:make_script and make_relup Add syntax check of relup to check_install_release and install_release Add documentation for upgrade from pre R15 to post R15 sasl Handle upgrade from pre R15 to post R15 sasl Step version of sasl to 2.2 for R15 Document upgrade instructions restart_new_emulator and restart_emulator Wait for two restarts in upgrade_restart test Add restart_new_emulator instruction to kernel, stdlib and sasl appups Distinguish restart_new_emulator from restart_emulator in upgrade instructions Upgrade erts: merge sys.config for tmp release instead of using old Allow regexp for version in .appup Restart emulator before running upgrade script when erts is upgraded Conflicts: lib/sasl/src/release_handler.erl lib/sasl/test/release_handler_SUITE.erl
2011-11-17Add restart_new_emulator instruction to kernel, stdlib and sasl appupsSiri Hansen
The appup files for kernel, stdlib and sasl did not contain any UpFromVsn and DownToVsn. This means that it was not possible to create a relup file with systool:make_relup if any of these applications had changed. This commit adds entries in the appup files for a maximum of two major releases back - all with only one upgrade instruction: restart_new_emulator. The point is to allow relups to be generated, but ensure that no soft upgrade is done for these three applications - i.e. they will always cause a restart of the emulator prior to all other upgrade instructions from other applications. Test cases (appup_test) are added to kernel_SUITE, stdlib_SUITE and sasl_SUITE. These all check that expected versions are matched in the appups, and illegal versions (older than two major releases, or in any other way illegal) do not match. The test is written in a general way where it is assumed that the version of these applications are stepped according the the rule that major releases step the second number, maintenance releases step the third number and patches step the fourth number.
2011-11-17stdlib: Make sure qlc_SUITE:otp_6964 restores backtrace_depthSverker Eriksson
2011-11-16Make binary:match with scope return correct valuesPatrik Nyblom
2011-11-14Remove the undocumented function global:safe_whereis_name/1Hans Bolinder
2011-11-14Remove all use of global:safe_whereis_name/1Hans Bolinder
Calls to global:whereis_name/1 have been substituted for calls to global:safe_whereis_name/1 since the latter is not safe at all. The reason for not doing this earlier is that setting a global lock masked out a bug concerning the restart of supervised children. The bug has now been fixed by a modification of global:whereis_name/1. (Thanks to Ulf Wiger for code contribution.)
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
2011-11-13Optimize 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.
2011-11-07EEP-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
2011-10-21Fix a few tests that used to fail on the HiPE platformHans Bolinder
2011-10-20Merge branch 'rc/epp-include-path-fix'Henrik Nord
* rc/epp-include-path-fix: Make epp search directory of current file first when including another file OTP-9645
2011-10-20Merge branch 'hl/fix-ms_transform-scope-warn'Henrik Nord
* hl/fix-ms_transform-scope-warn: ms_transform: Fix incorrect `variable shadowed' warnings OTP-9646
2011-10-20Merge branch 'cf/simple_one_for_one_shutdown'Henrik Nord
* cf/simple_one_for_one_shutdown: Explain how dynamic child processes are stopped Stack errors when dynamic children are stopped Explicitly kill dynamic children in supervisors Conflicts: lib/stdlib/doc/src/supervisor.xml OTP-9647
2011-10-20Merge branch 'cf/supervisor_shutdown_infinity'Henrik Nord
* cf/supervisor_shutdown_infinity: Add a warning to docs about workers' shutdown strategy Allow an infinite timeout to shutdown worker processes OTP-9648
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
2011-10-17Make epp search directory of current file first when including another fileRichard Carlsson
The expected behaviour of a C-style preprocessor (such as Erlang's epp) is to allow a header file to include another header file in the same directory even though that directory is not explicitly in the include path, and even if the actual include path might reference another directory containing a file with the same name. For example, if src/foo.erl explicitly includes "../include/foo.hrl", then foo.hrl should be able to include "bar.hrl" in that same directory even though "../include" might not be in the search path, and even if another file named bar.hrl could be found using the search path it should not override the one in the same directory as foo.hrl. In Erlang, the most common situation is that a user of an installed application includes a main public header file using include_lib ("appname/include/foo.hrl") and that file includes a secondary header file "bar.hrl". However, if it does this using include_lib, it causes a bootstrapping problem - in the build environment for the application itself, the application is not necessarily found by name. On the other hand, if foo.hrl uses a plain include, then bar.hrl might be found when the application is built (if explicit paths are set in the makefils) but not later on when a user includes the main header file of the installed application via include_lib. By making -include always look in the directory of the current file before it uses the search path, this problem is remedied, and include directives behave in a more intuitive way. This completes a partial fix in R11 that only worked for include_lib().
2011-10-17Fix a bug in Dets concerning repair of almost full tablesHans Bolinder
A Dets table with sufficiently large buckets could not always be repaired. (Reported by Gordon Guthrie.) The format of Dets files has been modified. When downgrading tables created with the new system will be repaired. Otherwise the modification should not be noticeable.
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
2011-10-10Allow an infinite timeout to shutdown worker processesChristopher Faulet
Now, in child specification, the shutdown value can also be set to infinity for worker children. This restriction was removed because this is not always possible to predict the shutdown time for a worker. This is highly application-dependent.
2011-10-10Fix a minor bug in DetsHans Bolinder
If a Dets table had been properly closed but the space management data could not been read, it was not possible to repair the file.
2011-09-28Merge branch 'bjorn/line-numbers/OTP-9468' into majorBjörn Gustavsson
* bjorn/line-numbers/OTP-9468: beam_lib_SUITE: Don't assume that "Abst" is the last chunk test_server: Show line number for caller of test_server:fail()
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
2011-09-27beam_lib: Handle rare race in the crypto key server functionalityBjörn Gustavsson
In rare circumstances, there can be a race when the crypto key server is started by beam_lib:crypto_key_fun/1 shortly after stopping it using beam_lib:clear_crypto_key_fun/0. The race occurs because the crypto key server first sends back the reply to the calling process, then terminates. (The race is probably more likely to happen on CPUs with hyper threading.)
2011-09-19Merge branch 'dev' into majorBjörn Gustavsson
* dev: tar_SUITE: Work around limited pathname length on Windows Merge the fourth bootstrap stage into the third bootstrap stage Remove unused lib/orber/include/Makefile Remove lib/orber/include/* from the primary bootstrap otp_build update_primary: Don't commit generated source files primary bootstrap: Remove source files Conflicts: Makefile.in bootstrap/bin/start.script bootstrap/bin/start_clean.script bootstrap/lib/compiler/ebin/compiler.app bootstrap/lib/compiler/egen/beam_opcodes.erl bootstrap/lib/compiler/egen/core_parse.erl bootstrap/lib/kernel/ebin/kernel.app bootstrap/lib/kernel/ebin/kernel.appup bootstrap/lib/orber/include/Makefile bootstrap/lib/orber/include/corba.hrl bootstrap/lib/orber/include/orber_pi.hrl bootstrap/lib/stdlib/ebin/stdlib.app bootstrap/lib/stdlib/ebin/stdlib.appup bootstrap/lib/stdlib/egen/erl_parse.erl
2011-09-19Merge branch 'bjorn/stdlib/fix-tar_SUITE' into devBjörn Gustavsson
* bjorn/stdlib/fix-tar_SUITE: tar_SUITE: Work around limited pathname length on Windows
2011-09-16Merge branch 'dev' into majorBjörn-Egil Dahlberg
* dev: Cleanup ETS bif's in hipe:erl_bif_types.erl (for dialyzer) Conflicts: erts/emulator/beam/erl_db.c
2011-09-16Merge branch 'pan/erl-bif-types/OTP-9496' into devBjörn-Egil Dahlberg
* pan/erl-bif-types/OTP-9496: Cleanup ETS bif's in hipe:erl_bif_types.erl (for dialyzer)
2011-09-16Explicitly kill dynamic children in supervisorsChristopher Faulet
According to the supervisor's documentation: "Important note on simple-one-for-one supervisors: The dynamically created child processes of a simple-one-for-one supervisor are not explicitly killed, regardless of shutdown strategy, but are expected to terminate when the supervisor does (that is, when an exit signal from the parent process is received)." All is fine as long as we stop simple_one_for_one supervisor manually. Dynamic children catch the exit signal from the supervisor and leave. But, if this happens when we stop an application, after the top supervisor has stopped, the application master kills all remaining processes associated to this application. So, dynamic children that trap exit signals can be killed during their cleanup (here we mean inside terminate/2). This is unpredictable and highly time-dependent. In this commit, supervisor module is patched to explicitly terminate dynamic children accordingly to the shutdown strategy. NOTE: Order in which dynamic children are stopped is not defined. In fact, this is "almost" done at the same time.
2011-09-16tar_SUITE: Work around limited pathname length on WindowsBjörn Gustavsson
Ever since the test suites were converted to the common_test convention, the tests for long names started to fail on Windows. The reason is that those test cases depend on the current working directory, and that the current working directory in common_test test cases is usually set to a directory with a longer pathname than in test_server test suites. Since neither Erlang/OTP nor common_test provides a portable way to create a temporary directory with a short name, we will have to abuse priv_dir by going upwards from it. For further information, see the comment in run_in_short_tempdir/2.
2011-09-14Merge branch 'dev' into majorLukas Larsson
* dev: Add a high value to test data to catch type cast truncation errors
2011-09-14Merge branch 'lukas/erts/ets_order_testcases/OTP-9459' into devLukas Larsson
* lukas/erts/ets_order_testcases/OTP-9459: Add a high value to test data to catch type cast truncation errors
2011-09-13beam_lib_SUITE: Don't assume that "Abst" is the last chunkBjörn Gustavsson
"Line" is now the last chunk in a BEAM file, causing beam_lib_SUITE:error/1 to fail. To avoid being bitten by this problem again, don't simply change "Abst" to "Line", but use beam_lib:info/1 to find out the name of the last chunk.
2011-09-12Cleanup ETS bif's in hipe:erl_bif_types.erl (for dialyzer)Patrik Nyblom
2011-09-08ms_transform: Fix incorrect `variable shadowed' warningsHaitao Li
Compile below module resulting incorrect warning: $ cat tmp.erl -module(tmp). -export([tmp/1]). -include_lib("stdlib/include/ms_transform.hrl"). tmp(X) when X > 100 -> Y=X, Y; tmp(X) -> ets:fun2ms(fun(Y) -> {X, Y} end). $ erlc tmp.erl ./tmp.erl:8: Warning: variable 'Y' shadowed in ms_transform fun head The scope for a variable is its function clause. Variables bound in one function clause should not interfere with other function clauses. This patch removes incorrect passing of variable bindings from one function clause to another. Signed-off-by: Haitao Li <[email protected]>
2011-09-02Merge branch 'dev' into majorHans Bolinder
* dev: Fix a couple of minor bugs with hook priority Update to reflect addition of CTH priority addition Update CTH priority default to be 0 Update to reflect new cth callback api Update the return from init/2 to be {ok, NewState} or {ok,NewState,Priority} instead of NewState. Add priority functionality and tests for ct hooks Update internal hooks state to use a record instead of tuples Improve and correct types and specifications in Kernel and STDLIB
2011-08-31Add a high value to test data to catch type cast truncation errorsLukas Larsson
2011-08-31Improve and correct types and specifications in Kernel and STDLIBHans Bolinder
Running Dialyzer on the test suites revealed a few type errors.
2011-08-30Merge branch 'dev' into majorHenrik Nord
2011-08-25Merge branch 'bjorn/line-numbers-in-exceptions/OTP-9468' into majorBjörn Gustavsson
* bjorn/line-numbers-in-exceptions/OTP-9468: (51 commits) debugger: By default, only save non-tail-recursive calls debugger: Add line_number_SUITE debugger: Include line numbers in exceptions Update examples in the documentation to include line numbers Update documentation for erlang:raise/3 and erlang:get_stacktrace/0 beam_lib: Retain the "Line" chunk when stripping BEAM files erl: Add +L to suppress loading of line number information compiler: Add no_line_info for suppressing line/1 instructions exception_SUITE: Test line numbers in exceptions common_test: Use line numbers in exceptions common_test tests: Don't do detailed testing of the stack backtrace test_server: Refactor init_per_testcase/3 into two functions Implement process_info(Pid, current_{location,stacktrace}) beam_emu: Factor out saving of stack trace from save_stacktrace() compiler: Don't create filenames starting with "./" ops.tab: Remove line instructions before tail-recursive calls Lookup and include filenames and line numbers in exceptions Fix decrement of continuation pointers Refactor building of the exception stacktrace BEAM loader: Load the line table ...
2011-08-25Merge branch 'dev' into majorHenrik Nord
2011-08-23fix supervisors restarting temporary childrenFred Hebert
In the current implementation of supervisors, temporary children should never be restarted. However, when a temporary child is restarted as part of a one_for_all or rest_for_one strategy where the failing process is not the temporary child, the supervisor still tries to restart it. Because the supervisor doesn't keep some of the MFA information of temporary children, this causes the supervisor to hit its restart limit and crash. This patch fixes the behaviour by inserting a clause in terminate_children/2-3 (private function) that will omit temporary children when building a list of killed processes, to avoid having the supervisor trying to restart them again. Only supervisors in need of restarting children used the list, so the change should be of no impact for the functions that called terminate_children/2-3 only to kill all children. The documentation has been modified to make this behaviour more explicit.
2011-08-18Fix a bug in zip:zip_open/1,2.Hans Bolinder
zip:zip_open/1,2 did not accept binary archives. Also corrected the contracts of t/1 and tt/1.
2011-08-18beam_lib: Retain the "Line" chunk when stripping BEAM filesBjörn Gustavsson
2011-08-16Lookup and include filenames and line numbers in exceptionsBjörn Gustavsson