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2016-01-22Merge branch 'siri/document-path-flag/OTP-13060' into maintSiri Hansen
* siri/document-path-flag/OTP-13060: Add documentation of '-path' flag to 'erl'
2016-01-22Merge branch 'siri/cover/nofile/OTP-13200' into maintSiri Hansen
* siri/cover/nofile/OTP-13200: [cover] Don't crash when compiling beam without 'file' attribute [cover] Simplify module cc in cover test to avoid confusion
2016-01-22Merge branch 'rickard/test-fix' into maintRickard Green
* rickard/test-fix: Fix HL timer hard debug implementation Fix stack alignment problem in ethread test on arm Skip time_SUITE:timestamp on timewarp test
2016-01-22Merge branch 'bjorn/asn1/fix-per-crash/OTP-13257' into maintBjörn Gustavsson
* bjorn/asn1/fix-per-crash/OTP-13257: PER: Correct compilation of named INTEGERs
2016-01-21PER: Correct compilation of named INTEGERsBjörn Gustavsson
When a constrained INTEGER has more than 16536 values and named values, the compiler would crash when compiling to the PER format. Example: Longitude ::= INTEGER { oneMicrodegreeEast(10), oneMicrodegreeWest(-10), unavailable(1800000001) } (-1799999999..1800000001) Reported-by: Ingars
2016-01-21Merge branch 'ia/ssl/version_support_check' into maintIngela Anderton Andin
* ia/ssl/version_support_check: ssl: In interop tests always check if SSL/TLS version is supported by OpenSSL
2016-01-21ssl: In interop tests always check if SSL/TLS version is supported by OpenSSLIngela Anderton Andin
As sslv3 is being faced out we need to test for old version support as well as newer versions.
2016-01-20Merge branch 'vinoski/check-awdp-esdp' into maintRickard Green
* vinoski/check-awdp-esdp: Fix dirty scheduler check in handle_aux_work
2016-01-19Merge branch 'sverk/crypto-aec-ecb-multiblock' into maintSverker Eriksson
OTP-13249 * sverk/crypto-aec-ecb-multiblock: crypto: Fix bug for multiple blocks for AES-ECB
2016-01-19Merge branch 'sverk/armata-memset-bug' into maintSverker Eriksson
* sverk/armata-memset-bug: erts: Workaround memset bug in test case
2016-01-18Fix dirty scheduler check in handle_aux_workSteve Vinoski
2016-01-18Merge branch 'hans/ssh/ssh_benchmark_SUITE' into maintHans Nilsson
2016-01-18ssh: encode/decode benchmark suitesHans Nilsson
2016-01-18ssh: added cipher name to transfer speed reportHans Nilsson
2016-01-18ssh: added sftp server benchmarkHans Nilsson
2016-01-18Merge branch 'egil/improve-map-cerl-prettypr/OTP-13238' into maintBjörn-Egil Dahlberg
* egil/improve-map-cerl-prettypr/OTP-13238: compiler, hipe: Fix pretty printing of Core Maps hipe: Fix map pretty printing of pairs dialyzer: Update Maps tests
2016-01-18Merge branch 'hb/edoc/fix_argument_names/OTP-13234' into maintHans Bolinder
* hb/edoc/fix_argument_names/OTP-13234: edoc: Assign correct names to list arguments
2016-01-18edoc: Assign correct names to list argumentsHans Bolinder
Bug reported by Josemic. See also ERL-63.
2016-01-15Merge branch 'hb/dialyzer/fix_opaque_type_parms/OTP-13237' into maintHans Bolinder
* hb/dialyzer/fix_opaque_type_parms/OTP-13237: dialyzer: Correct handling of parameters of opaque types
2016-01-15dialyzer: Correct handling of parameters of opaque typesHans Bolinder
Correction of commit d57f5e.
2016-01-14crypto: Fix bug for multiple blocks for AES-ECBAndrew Bennett
2016-01-14Merge branch 'sverk/trace-doc-typo' into maintSverker Eriksson
* sverk/trace-doc-typo: erts: Correct faulty doc for erlang:trace/3
2016-01-14erts: Correct faulty doc for erlang:trace/3Sverker Eriksson
The entire MFA tuple is replaced with 0, not just Arity.
2016-01-14compiler, hipe: Fix pretty printing of Core MapsBjörn-Egil Dahlberg
Literal maps could cause dialyzer to crash when pretty printing the results. Reported-by: Chris McGrath <[email protected]>
2016-01-14hipe: Fix map pretty printing of pairsBjörn-Egil Dahlberg
In commit f667931e2905797ffab63e224e56eaf07f77178a the core format changed for map pairs. Let dialyzer and hipe pretty printing of maps also adhere to those changes. An Erlang map update, M#{foo := 1, bar => 2} will now be printed as: ~{ 'foo' := 1, 'bar' => 2 | M }~
2016-01-14dialyzer: Update Maps testsBjörn-Egil Dahlberg
2016-01-14Add documentation of '-path' flag to 'erl'Siri Hansen
This flag replaces the path specified in the boot script. It has always existed, but was earlier only documented in SASL (script).
2016-01-14Merge branch 'vinoski/dirty-sched-no-aux-work/OTP-13236' into maintRickard Green
* vinoski/dirty-sched-no-aux-work/OTP-13236: Do not allow aux work on dirty schedulers
2016-01-13Merge branch 'bjorn/compiler/map-bug/OTP-13231' into maintBjörn Gustavsson
* bjorn/compiler/map-bug/OTP-13231: Fix crash when attempting to update a fun as if it were a map
2016-01-13Merge branch 'hb/stdlib/fix_linter_no_module/OTP-13230' into maintHans Bolinder
* hb/stdlib/fix_linter_no_module/OTP-13230: stdlib: Fix linter crash due to missing -module declaration
2016-01-13stdlib: Fix linter crash due to missing -module declarationHans Bolinder
The Erlang Code Linter no longer crashes if there is a -deprecated() attribute but no -module() declaration. See also ERL-62 at bugs.erlang.org.
2016-01-13Merge branch 'hb/stdlib/fix_erl_eval/OTP-13228' into maintHans Bolinder
* hb/stdlib/fix_erl_eval/OTP-13228: stdlib: fix erl_eval not using non-local function handler
2016-01-13stdlib: fix erl_eval not using non-local function handlerHans Bolinder
See also ERL-32 at bugs.erlang.org. Thanks to Ben Paxton.
2016-01-12Fix crash when attempting to update a fun as if it were a mapBjörn Gustavsson
The following example would cause an internal consistency failure in the compiler: f() -> ok. update() -> (fun f/0)#{u => 42}. The reason is that internally, v3_core will (incorrectly) rewrite update/0 to code similar to this: update() -> if is_map(fun f/0) -> maps:update(u, 42, fun f/0) end. Since funs are not allowed to be created in guards, incorrect and unsafe code would be generated. It is easy to fix the bug. There already is a is_valid_map_src/1 function in v3_core that tests whether the argument for the map update operation can possibly be a valid map. A fun is represented as a variable with a special name in Core Erlang, so it would not be recognized as unsafe. All we'll need to do to fix the bug is to look closer at variables to ensure they don't represent funs. That will ensure that the code is rewritten in the correct way: update() -> error({badmap,fun f/0}) end. Reported-by: Thomas Arts
2016-01-11erts: Workaround memset bug in test caseSverker Eriksson
memset seen to fail with values larger than 255 on (armata) 32-bit ARM Debian with EGLIBC 2.13-38+rpi2+deb7u8 and gcc 4.6.3-14+rpi1.
2016-01-11Merge branch 'maint-18' into maintHenrik Nord
2016-01-11Eliminate crash in v3_codegenBjörn Gustavsson
The following code would crash v3_codegen: order(From) -> catch if From#{[] => sufficient} -> saint end. Before explaining the crash, first some background on the stack frame and the Y registers. Certain instructions, most notably the 'call' instructions, clobber all X registers. Before any such instruction, all X registers that have values that will be used after the call must be saved to Y registers (i.e. to the stack frame). adjust_stack/4 will be called when X registers must be saved. There is also another situation when X registers must be saved, namely within a 'catch' if we are about to execute any instruction that may cause an exception. Examples of such instructions are some guard BIFs (such as length/1) and construction of binaries or maps. Within a 'catch', X registers must be be saved because if an exception is thrown and catched all X registers will be destroyed. The same adjust_stack/4 function will be called for those instructions, but only if they occur within a 'catch'. There is actually one more complication. If there is code in a guard within a catch, the X registers should not be saved, because the code in a guard never clobbers any X registers that were alive before the guard code was entered. v3_codegen is written with the implicit assumption that code in guards never cause anything to be saved to Y registers. The code for building maps and binaries would incorrectly save X registers within a guard inside a 'catch'. For construction of binaries, that would mean that a useless but harmelss 'move' instruction was generated. But for construction of maps, the saving of the Y register would not be harmless. There would be a crash when attempting to merge #sr{} records. #sr{} records keeps track of the contents of X and Y registers. When two separate code paths are joined (e.g. at the end of 'case' statement), the register descriptors must be reconciled. Basically, the register descriptors for both paths must be identical. The #sr{} record for one path must not claim that {y,0} contains a certain value, while another path claims that {y,0} is dead. Thus, the crash occurs in sr_merge/2 when failing to reconcile the Y registers. To fix this bug this bug we will introduce a new function called maybe_adjust_stack/5. It will save X registers on the stack only if the code is inside a catch but not inside a guard. We will change all existing code to use this new function when appropriate. Reported-by: Thomas Arts
2016-01-08Updated OTP versionOTP-18.2.2Erlang/OTP
2016-01-08Update release notesErlang/OTP
2016-01-08Merge branch 'hans/ssh/keyboard_interactive0/OTP-13255' into maint-18Erlang/OTP
* hans/ssh/keyboard_interactive0/OTP-13255: ssh: update vsn.mk to 4.2.1 ssh: handle secondary ssh_msg_userauth_info_request message ssh: testcase for abnormal keyboard-interactive authentication
2016-01-08ssh: update vsn.mk to 4.2.1Hans Nilsson
2016-01-08ssh: handle secondary ssh_msg_userauth_info_request messageHans Nilsson
2016-01-08ssh: testcase for abnormal keyboard-interactive authenticationHans Nilsson
2016-01-07Merge branch 'bjorn/compiler/beam_bool/OTP-13208' into maintBjörn Gustavsson
* bjorn/compiler/beam_bool/OTP-13208: beam_bool: Fix unsafe optimization
2016-01-07beam_bool: Fix unsafe optimizationBjörn Gustavsson
beam_bool would make the following code unsafe (which would be reported by beam_validator): scotland(Echo) -> found(case Echo of Echo when true; Echo, Echo, Echo -> Echo; echo -> [] end, Echo = placed). found(_, _) -> million. Basically, beam_bool would see that the 'case' would always return the value of Echo. Thus: scotland(Echo) -> found(Echo, Echo = placed). The only problem is that beam_bool would also remove a 'move' instruction that would save Echo to the stack. Here is the assembly code for part of the function: {allocate_zero,1,1}. {move,{x,0},{y,0}}. %% Save Echo on stack. {bif,'=:=',{f,7},[{x,0},{atom,true}],{x,1}}. {bif,'=:=',{f,7},[{x,0},{atom,true}],{x,2}}. {bif,'=:=',{f,7},[{x,0},{atom,true}],{x,3}}. {bif,'and',{f,7},[{x,2},{x,3}],{x,2}}. {bif,'and',{f,7},[{x,1},{x,2}],{x,1}}. {jump,{f,8}}. {label,7}. {move,{atom,false},{x,1}}. {label,8}. {bif,'or',{f,6},[{atom,true},{x,1}],{x,1}}. {test,is_eq_exact,{f,6},[{x,1},{atom,true}]}. %% Jump never taken. {jump,{f,5}}. {label,6}. {test,is_eq_exact,{f,9},[{x,0},{atom,echo}]}. {move,nil,{x,0}}. {jump,{f,5}}. {label,9}. {test_heap,3,0}. {put_tuple,2,{x,0}}. {put,{atom,case_clause}}. {put,{y,0}}. {line,[{location,"t.erl",5}]}. {call_ext,1,{extfunc,erlang,error,1}}. {jump,{f,5}}. {label,5}. {test,is_eq_exact,{f,12},[{atom,placed},{y,0}]}. beam_bool would see that the is_eq_exact test at label 8 would always succeed. It could therefore remove most of the code before the jump to label 5. Unfortunately it also removed the essential move of Echo to the stack: {allocate_zero,1,1}. %% Instruction incorrectly removed: {move,{x,0},{y,0}}. {jump,{f,5}}. {label,5}. {test,is_eq_exact,{f,12},[{atom,placed},{y,0}]}. The root cause of the problem is that the 'move' instruction is included in the block of 'bif' instructions before label 8. Normally the 'move' instruction would not have been discarded, but because the left operand to the 'or' BIF is 'true', the entire block with 'bif' instructions are dropped. As far as I can see, there is no gain by including 'move' instructions in the first place. There is no way that better code will be produced. In fact, the entire optimization can be given up if 'move' instructions are found in the block. Thus we can fix this bug by never including any 'move' instructions in the block of 'bif' instructions. We can also remove all the code that deals with 'move' instructions within blocks. Reported-by: Thomas Arts
2015-12-30Merge branch 'rickard/rq-len/OTP-13201' into maintRickard Green
* rickard/rq-len/OTP-13201: Light weight statistics of run queue lengths
2015-12-30Light weight statistics of run queue lengthsRickard Green
- statistics(total_run_queue_lengths) - statistics(run_queue_lengths) - statistics(total_active_tasks) - statistics(active_tasks) Conflicts: erts/emulator/beam/erl_process.c
2015-12-30Merge branch 'rickard/trace_call_time/OTP-13216' into maintRickard Green
* rickard/trace_call_time/OTP-13216: Use monotonic time for call_time trace
2015-12-30Fix HL timer hard debug implementationRickard Green
2015-12-30Fix stack alignment problem in ethread test on armRickard Green
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