aboutsummaryrefslogtreecommitdiffstats
path: root/erts
AgeCommit message (Collapse)Author
2017-11-30Add a mutable binary buffer type (prim_buffer)John Högberg
2017-11-30Change resource_monitors' lock orderJohn Högberg
If a NIF monitor fired while the resource was present in an ETS table, the lock checker would erroneously report a lock order violation. This has no effect outside of debug builds.
2017-11-30Add enif_ioq_peek_headJohn Högberg
This introduces a way to retrieve erlang terms from NIF IO queues without having to resort to copying. OTP-14797
2017-11-30Merge branch 'maint'Sverker Eriksson
2017-11-30Merge PR-1636 from nox/enif-reallocSverker Eriksson
Document enif_realloc and pointer alignment guarantees
2017-11-30Merge branch 'maint'Björn Gustavsson
* maint: Fix max atom size overflow on 64-bits Erlang by lowering the MAX_ATOM_TABLE_SIZE Fix integer overflow when set a large maximum value for atom table
2017-11-30Merge pull request #1633 from sunboshan/atom-size-fixBjörn Gustavsson
Fix integer overflow when set a large maximum value for atom table OTP-14796
2017-11-27Merge branch 'maint'Sverker Eriksson
2017-11-27Merge branch 'sverker/run_erl-log-gen-doc' into maintSverker Eriksson
2017-11-27erts: Fix bad merge of PR #1644Björn Gustavsson
2017-11-27Merge branch 'maint'John Högberg
2017-11-27Merge branch 'john/erts/fix-nif-ioq-version/OTP-14779' into maintJohn Högberg
2017-11-24Fix purging of modules with "fake literals"Björn Gustavsson
When compiling Erlang source code, the literal area for the module can only contain data types that have a literal syntax. However, it is possible to sneak in other data types (such as references) in the literal pool by compiling from abstract or assembly code. Those "fake literals" would work fine, but would crash the runtime system when the module containing the literals was purged. Although fake literals are not officially supported, the runtime should not crash when attempting to use them. Therefore, fix the garbage collection of literals and releasing of literal areas. https://bugs.erlang.org/browse/ERL-508
2017-11-24Merge branch 'maint'Björn Gustavsson
* maint: Use base64 encoding in crash dumps Correct parsing of sub binaries Generalize passing of options for decoding
2017-11-24Merge branch 'bjorn/base64-in-dumps/OTP-14686' into maintBjörn Gustavsson
* bjorn/base64-in-dumps/OTP-14686: Use base64 encoding in crash dumps Correct parsing of sub binaries Generalize passing of options for decoding
2017-11-23run_erl: Cleanup buggy retry of closeSverker Eriksson
The retry loop wasn't working anyway as it tested fd<0 instead of res. So, there is no real semantic change here.
2017-11-23Merge branch 'sverker/async-auto-connect/OTP-14370' AGAINSverker Eriksson
2017-11-23erts: Fix erlang:monitor toward c-nodesSverker Eriksson
by suppressing DOP_MONITOR_P, DOP_MONITOR_P_EXIT and DOP_DEMONITOR_P if not supported by the remote node. In 17e198d6ee60f7dec9abfed272cf4226aea44535 I changed the behavior of erlang:monitor to not raise badarg for c-nodes but instead create a monitor to only supervise the connection. But I forgot to prevent DOP_MONITOR_P and friends from being sent to the node that does not expect them. Note: We test both DFLAG_DIST_MONITOR and DFLAG_DIST_MONITOR_NAME for the node to support process monitoring. This is because erl_interface is buggy as it sets DFLAG_DIST_MONITOR without really supporting it. ToDo: Should erl_interface stop setting DFLAG_DIST_MONITOR or should we change the meaning of these flags?
2017-11-23Document alignment guarantees of enif_alloc and enif_reallocAnthony Ramine
2017-11-21Document enif_reallocAnthony Ramine
2017-11-21Merge branch 'maint'Sverker Eriksson
2017-11-21Merge branch 'sverker/nif-debug-bin-check' into maintSverker Eriksson
2017-11-21erts: Fix preemption bug in erts_dist_commandSverker Eriksson
We should break out when out of reductions.
2017-11-21erts: Remove obsolete commentsSverker Eriksson
2017-11-21Use base64 encoding in crash dumpsBjörn Gustavsson
This will reduce the size of crash dumps, especially if there are large binaries.
2017-11-20Fix max atom size overflow on 64-bits Erlang by lowering theBoshan Sun
MAX_ATOM_TABLE_SIZE Currently, the max atom size on 64-bits Erlang is ((UWORD_CONSTANT(1) << 32) = 4294967296 This number will cause the range of atom size to be displayed as [8192-0]. Also, the +t option for max atom size will be parsed as a long type, and assigned to a int variable erts_atom_table_size (erl_init.c), which will cause integer overflow if the number is larger than the maximum value a 4-bytes signed integer can hold ((1 << 31) - 1) = 2147483647 Therefore, during the comparison erts_atom_table_size < MIN_ATOM_TABLE_SIZE any number above 2147483647 will be come negative, and causing the condition to be true, which then errored out as bad atom table size. Hence, the actual max atom size is same as the max signed int value.
2017-11-20Fix integer overflow when set a large maximum value for atom tableBoshan Sun
When setting maximum atom table size using +t option, there will be a integer overflow for a large size. $ erl +t2147482625 ll_alloc: Cannot allocate 18446744073692774400 bytes of memory (of type "atom_tab"). The overflow is caused by the arithmetic operations on int type. When 2147482625 + 1024 it will become -2147483647 due to the signed integerger overflow. Then the result will be resized to Uint type, which is a unsigned long type, the negative int will first be expand to 64 bits long via sign extension, then change to unsigned type, which becomes 18446744073692774400. The fix is done by convert `limit` to Uint type before doing any arithmetic operation. This will expand variable to 64 bits long type via zero extension, then the following operation are all positive, therefore no overflow will happen. Note: here we assume the int `limit` passed in is always positive. If some future change cause the `limit` passed in maybe negative, then the current fix will also cause overflow.
2017-11-20Merge PR-1632 from margnus1/hipe-receive-opt OTP-14785Sverker Eriksson
HiPE: Optimise receives matching unique references
2017-11-20Merge branch 'maint'Hans Nilsson
* maint: Updated OTP version Prepare release ssh: testcases for space trailing Hello msg ssh: Don't remove trailing WS in Hello msg ssh: dialyzer fixes ssh: Fix broken error handling during session setup Remove invalid EINTR loop around close(2) Conflicts: OTP_VERSION
2017-11-20Merge branch 'maint-20' into maintHans Nilsson
* maint-20: Updated OTP version Prepare release ssh: testcases for space trailing Hello msg ssh: Don't remove trailing WS in Hello msg ssh: dialyzer fixes ssh: Fix broken error handling during session setup Remove invalid EINTR loop around close(2) Conflicts: lib/ssh/test/ssh_options_SUITE.erl
2017-11-20Merge branch 'maint'Lukas Larsson
2017-11-20Merge branch 'lukas/system/improve_profile_docs/OTP-14633' into maintLukas Larsson
* lukas/system/improve_profile_docs/OTP-14633: erts: Add term2bin note about encoding guarantee Fix broken link in INSTALL howto system: Add info to profiling effeciency guide Update message queue and pinfo binary docs kernel: Clarify gen_tcp:listen documentation system: Add External OSS tools section to profiling guilde
2017-11-20Merge branch 'maint'Lukas Larsson
2017-11-20Merge branch 'lukas/docs/xmllint_fixes/OTP-14721' into maintLukas Larsson
* lukas/docs/xmllint_fixes/OTP-14721: ssl/ssh: Remove/ignore unused XML_FILES doc files Refactor xmllint check and make it fail on failure Add toplevel xmllint make target Conflicts: lib/crypto/doc/src/Makefile
2017-11-20Merge branch 'bjorn/make_port/OTP-14704'Björn Gustavsson
* bjorn/make_port/OTP-14704: Avoid using the efile driver in test suites
2017-11-20Merge branch 'lukas/stdlib/maps_iterators/OTP-14012'Lukas Larsson
* lukas/stdlib/maps_iterators/OTP-14012: erts: Limit size of first iterator for hashmaps Update primary bootstrap Update preloaded modules erts: Remove erts_internal:maps_to_list/2 stdlib: Make io_lib and io_lib_pretty use maps iterator erts: Implement batching maps:iterator erts: Implement maps path iterator erts: Implement map iterator using a stack stdlib: Introduce maps iterator API Conflicts: bootstrap/lib/stdlib/ebin/io_lib.beam bootstrap/lib/stdlib/ebin/io_lib_pretty.beam erts/emulator/beam/bif.tab erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/erts_internal.beam erts/preloaded/ebin/zlib.beam
2017-11-20erts: Limit size of first iterator for hashmapsLukas Larsson
2017-11-20Update preloaded modulesLukas Larsson
2017-11-20erts: Remove erts_internal:maps_to_list/2Lukas Larsson
This function is no longer needed as maps:iterator has now been implemented.
2017-11-20erts: Implement batching maps:iteratorLukas Larsson
This iterator implementation fetches multiple elements to iterate over in one call to erts_internal:maps_next instead of one at a time. This means that the memory usage will go up for the iterator as we are buffering elements, but the usage is still bounded. In this implementation the max memory usage is 1000 words. Using this approach makes the iterator as fast as using maps:to_list, so maps:iterator/2 has been removed.
2017-11-17erts: Clarify RUN_ERL_LOG_GENERATIONSSverker Eriksson
2017-11-17Avoid using the efile driver in test suitesBjörn Gustavsson
The efile driver will soon be reimplemented as a BIF. Instead of opening a port based on efile, use hd(erlang:ports()). It is a reasonable safe assumption that the runtime will continue to use use at least some ports.
2017-11-17Prepare releaseErlang/OTP
2017-11-17Merge branch 'rickard/node-mon-proc-exit-race/maint-20/OTP-14781' into maint-20Erlang/OTP
* rickard/node-mon-proc-exit-race/maint-20/OTP-14781: Fix triggering of node monitors
2017-11-17Merge branch 'john/erts/fix-close-eintr/OTP-14775' into maint-20Erlang/OTP
* john/erts/fix-close-eintr/OTP-14775: Remove invalid EINTR loop around close(2)
2017-11-17Merge branch 'sverker/async-auto-connect/OTP-14370'Sverker Eriksson
* sverker/async-auto-connect/OTP-14370: (37 commits) Move new|abort_connection_id to erts_internal Refactor erts_dsig_prepare argument dep(p) Cleanup net_kernel Improve connection aborting Abort all pending connections if net_kernel terminates erts: Put pending DistrEntry in separate list Refactor auto_connect into an outline function Remove unused ERTS_DSP_RWLOCK fix erlang specs and preloaded erts: Keep magic ref to DistEntry in net_kernel Allow DistEntries in ETS Remove faulty assert erts: Transcode tuple fallbacks erts: Ensure enc_term_int() always do progress erl_interface: Add tuple fallback tests erl_interface: Refactor ei_accept_SUITE Add optimistic DFLAG_DIST_HOPEFULLY for pending connections erts: Fix auto-connect toward erl_interface/jinterface erts: Let send(_,_,[noconnect]) enqueue msg on pending connection. Remove obsolete erlang:dgroup_leader ...
2017-11-16Merge branch 'maint' of github.com:erlang/otp into maintHans Nilsson
2017-11-16Merge branch 'maint'Hans Nilsson
2017-11-16Merge branch 'maint-18' into maintHans Nilsson
* maint-18: Updated OTP version Prepare release ssh: Unicode encoding fix ssh: testcases for space trailing Hello msg Remove unused test include file from test suites eldap: Repair Makefile ssh: Don't remove trailing WS in Hello msg Conflicts: OTP_VERSION erts/doc/src/notes.xml erts/vsn.mk lib/compiler/doc/src/notes.xml lib/compiler/vsn.mk lib/crypto/test/blowfish_SUITE.erl lib/eldap/doc/src/notes.xml lib/eldap/vsn.mk lib/inets/test/httpd_load.erl lib/inets/test/httpd_mod.erl lib/inets/test/old_httpd_SUITE.erl lib/ssh/doc/src/notes.xml lib/ssh/vsn.mk lib/stdlib/test/zip_SUITE.erl otp_versions.table
2017-11-16Fix triggering of node monitorsRickard Green