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This change handles erlang:localtime_to_universaltime(...,true) in timezones
without DST in a consistent way over platforms. Specifically BSD did return
an (accurate) -1 from mktime, which blew things up. Now all platforms regard
no DST as a DST with delta zero. Linux, SunOS, MacOS etc already did this,
why the behaviour on BSD was updated to the slightly incorrect one instead
of breaking backward compatibility on most other platforms.
Before this change, erlang:localtime_to_universaltime({{2008, 8, 1},
{0, 0, 0}},true) would return {1969, 12, 31}, {23, 59, 59}} when
TZ=UTC on FreeBSD, now it mimics the behaviour of other systems and returns
{{2008, 8, 1},{0, 0, 0}}.
The problem was originally reported by Paul Guyot on erlang-bugs mailing list:
http://www.erlang.org/pipermail/erlang-bugs/2008-November/001077.html
This correction replaces earlier BSD specific open source patches for this
problem.
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Final merge of all unexpected differences from dev to release.
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A user defined CPU topology set via a call to <seealso
marker="erlang#system_flag_cpu_topology">erlang:system_flag(cpu_topology,
CPUTopology)</seealso> was not properly verified, and could in worst case
cause an emulator crash. The emulator crash could only occur when a user
defined CPU topology already existed and was redefined.
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* se/port_SUITE_env:
fix open_port with many unset env vars
allow open_port with env vars with trailing '=' on Windows
OTP-8701 se/port_SUITE_env
open_port/2 with the spawn and spawn_executable options can include an
{env,Env} option. In some cases unsetting variables would not work on Unix
(typically if more variables were unset than were actually present in the
environment).
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* peppe/common_test_r14_dev_2:
Misc documentation updates
Add documentation for run_test program
Step vsn for test_server to 3.4
Make {repeat*,N} property in group execute the group N times exactly
Fix so that ct_run converts relative diretories in the code path to absolute
Fix bug in handling framework:end_tc timeouts
Fix bug that prevents the interactive shell mode to start properly
Fix failing multiply timetrap test case
Minor fixes in code and test suites
Add support for executing pre-loaded suites (e.g. modules loaded as binaries)
Add test suite for remote loading of binary suites
Fix error with {repeat,0} property in groups causing double iterations
Add support for config info functions (e.g. init_per_suite/0)
Add support for dynamic timetrap handling
Have end_per_testcase run even after timetrap_timeout and abort_testcase
Flush old DOWN messages in demonitor
Add groups in test specifications
Add new tests for test case groups and test specifications
Improve and fix various test suites
Add event_handler_init start flag that can pass init arguments to event handlers
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OTP-8703 peppe/common_test_r14_dev_2
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The erlang:open_port spawn and spawn_executable directives can include
an {env, Env} directive to set up environment variables for the
spawned process. Variables can be unset with {"NameOfVariable",false}.
A bug in ert/emulator/sys/unix/sys.c could cause unset variables
to not be unset. This would typically happen if there where more
variables to be unset than there where already set variables in the
destination evironment.
Fix this problem for unix and add a new regression test for it to
the port test suite. Windows does not seem to have the same problem.
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Same problem that Steve Vinoski fixed for Unix. Similar fix done in
erts/emulator/sys/win32/sys_env.c for Windows.
Copy-paste from his commit-message:
The erlang:open_port spawn and spawn_executable directives can include
an {env, Env} directive to set up environment variables for the
spawned process. A bug in ert/emulator/sys/unix/sys.c prevented
applications from using {env, Env} to set an environment variable
whose value ended with a '=' (equal sign) character; the code mistook
the trailing equal sign as an indication that an environment variable
was to be cleared from the environment of the spawned process.
For example, passing an {env, Env} of
{env, [{"foo", "bar="}]}
would result in the code in sys.c seeing a string of the form
"foo=bar="
The code would see the final '=' character and assume the directive
wanted to clear a variable named "foo=bar" from the environment of the
spawned process, rather than seeing it as a directive to set the
environment variable "foo" to the value "bar=".
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With -erl_args it's possible to divide the start options on the command line and this way specify explicitly which options are meant for Common Test, and which are meant for other OTP applications (or ERTS).
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Common Test may now be started with the program run_test instead of the legacy shell script with the same name.
Minor updates have also been made to the Webtool application.
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* pan/otp_8692_static_config_cache:
Teach rc.sh to use tail -n +2 instead of tail +2
Make win32.config.cache static and copied when doing otp_build configure
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* pan/otp_8669_doc_autoimported:
Change documentation for erlang:min/2,max/2 and port_command/3 to
OTP-8669 erlang:min, erlang:max and erlang:port_command/3 autoimported
The recently added BIFs erlang:min/2, erlang:max/2 and
erlang:port_command/3 are now auto-imported (as they were originally
intended to be). Due to the recent compiler change (OTP-8579), the only
impact on old code defining it's own min/2, max/2 or port_command/3
functions will be a warning, the local functions will still be used. The
warning can be removed by using
-compile({no_auto_import,[min/2,max/2,port_command/3]}). in the source
file.
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* bg/bif-types:
Add type information for erlang:garbage_collect_message_area/0
Add type information for erts_debug:* BIFs
Add type information for erlang:port_call/2
Add type information for erlang:display* BIFs
Add type information for the BIFs in the binary module
Introduce and use the t_endian() helper
Add type information for erlang:binary_part/2,3
Add type info for erlang:append/2 and erlang:subtract/2
Add type information for the erlang:adler32* BIFs
Add ppc64 return for erlang:system_info(hipe_architecture)
Test that all BIFs have known types
erl_types: Export is_erl_type/1
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* commit 'bg/nif_error':
crypto: Add type specs for all documented functions
crypto: Use erlang:nif_error/1 to squelch false Dialyzer warnings
Add erlang:nif_error/1,2
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* pg/fix_erts_bld_string_n:
Fix erts_bld_string_n (called by enif_make_string and erlang:decode_packet/3) to work with 8 bits characters
OTP-8685 pg/fix_erts_bld_string_n
Fix bug causing erlang:decode_packet and enif_make_string to generate
faulty strings with negative character values for ascii values larger than
127. (Thanks to Paul Guyot)
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Add a test that will verify that BIFs have type information in
hiper/cerl/erl_bif_types.erl.
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* ms/file-exclusive-mode:
Update preloaded modules
Support opening files in exclusive mode
OTP-8670 ms/file-exclusive-mode
There is a new option 'exclusive' to file:open/2 that uses the OS O_EXCL
flag where supported to open the file in exclusive mode.
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erlang:decode_packet/3) to work with 8 bits characters
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* egil/call-time-trace-patterns:
Fix ops.tab to include i_return_time_trace
Let trace_call_time_SUITE scheduling test be more relaxed
Add documentation for call time breakpoints
Fix bp_hash_put to do hash value after rehash
Extend trace_call_time_SUITE with bif-tests
Fix assertion in trace_pattern for bifs
Teach erlang:system_info/1 to list snifs
Add bif tests to call time trace tests
Teach call time trace patterns to include bifs
Fix BeamInstr code array in export.h
Add trace call_time tests for nifs and bifs
Teach call count tracing to use atomics
Add first phase of trace call time test suite
Add a scheduler array for BpData at BeamInstr[-4]
Add search keys in breakpoints and a searchfunction
Fix BeamInstr for call_time
Teach call_time trace to use intruction pointers
Add return_time trace and PSD deletions
Remove trailing character in beam_bif_load
Fix set_function_break to use correct breakpoint
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OTP-8677 egil/call-time-trace-patterns
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reflect auto-import
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Add an option that atomically tests for the existence of a file and
creates it if the file does not exist, by passing the O_EXCL flag
to open() on Unix and CREATE_NEW flag on Windows. Support for O_EXCL
varies across platforms and filesystems.
{ok, Fd} = file:open("/tmp/foo", [write,exclusive]),
{error, eexist} = file:open("/tmp/foo", [write,exclusive]).
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of schedulers
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Without the instruction defined in ops the interpreter will not
compile when using NO_JUMPTABLE.
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Documented call time breakpoints in
- erlang:trace_pattern/3
- erlang:trace_info/2
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If a rehash was done the old hash value was used. This was incorrect.
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erlang:system_info(snifs) lists all static native implemented
functions. The function presents the lists with three tuple
values containing MFAs [{Module, Function, Arity}, ...].
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Call count previously used a global lock for accessing and writing
its counter in the breakpoint. This is now changed to atomics instead.
The change will let call count tracing and cprof to scale better
when increasing the number of schedulers.
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To solve the issue of multiple schedulers constantly updating the
head pointer to the bp data wheel, each scheduler now has its own
entrypoint to the wheel. This head pointer can be updated without
a locking being taken. Previously there were no lock ...
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call_time trace will use instruction pointers instead of
breakpoint data pointers. More costly lookup but the bdt
structure might be deallocated, we do not want that.
Remove unnecessary pattern lock.
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op_i_time_breakpoint is now used
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Call time breakpoint tracing traces per call trace per process.
- Add hashes to support the extra dimension.
- Teach trace_info/2 to handle the extra information dimension.
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