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* pan/heart_and_times/OTP-10111:
Make heart use clock_gettime when available
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Due to various operating systems (in both the DTrace and SystemTap
worlds) not fully supporting DTrace probes (or SystemTap-compatibility
mode probes) in shared libraries, we relocate those probes to the
statically-linked virtual machine. This could be seen as pollution
of the pristine VM by a (yet) experimental feature. However:
1. This code can be eliminated completely by the C preprocessor.
2. Leaving the probes in the dyntrace NIF shared library simply
does not work correctly on too many platforms.
*Many* thanks to Macneil Shonle at Basho for assisting when my
RSI-injured fingers gave out.
Tested on:
* CentOS 5, SystemTap 1.3
* Solaris 10 (note)
* Solaris 11
* OpenIndiana 151
* SmartOS 20120809T221258Z
* FreeBSD 9.0-RELEASE (note)
I had hoped to be able to test CentOS 6 + SystemTap 1.7, but the
details of dealing with all dependencies for a 2.6.32-279.5.1.el6.x86_64
kernel are too time consuming right now.
(note: Solaris 10 and FreeBSD 9.0-RELEASE can take a long time to compile)
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Tuple funs were deprecated in R15B (in commit a4029940e309518f5500).
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Also allow mixed address families to bind, since the first address on
a multihomed sctp socket must be bound with bind, while the rest are
to be bound using sctp_bindx.
At least Linux supports adding address of mixing families.
Make inet_set_faddress function available also when HAVE_SCTP is not
defined, since we use it to find an address for bind to be able to mix
ipv4 and ipv6 addresses.
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These variables are normally declared by <netinet/in.h>,
but for instance not on Windows 7, SDK 7.1.
Work around that by using IN6ADDR_ANY_INIT and IN6ADDR_LOOPBACK_INIT
if present, fallback to using :: and ::1.
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Setting several ip addresses for an SCTP socket worked only for IPv4
on Linux. For IPv6 and for other for instance Solaris and FreeBSD, it
failed with badarg for both IPv4 and IPv6.
For the first address specified to gen_sctp:open, bind is now called,
while for any following addresses, sctp_bindx is called, repeatedly,
with one address at a time. Previously, sctp_bindx was called for all
addresses in one go, with the addresses in reverse order, and bind was
not called at all if more than one address was specified. Both
Solaris and FreeBSD requires bind to have been called before calling
sctp_bindx, and FreeBSD additionally allows at most one address at a
time in the call to sctp_bindx.
For some versions of Linux, for instance SuSE 10, the port can be 0
only for the call to bind but not for subsequent calls to sctp_bindx,
so replace with the port number assigned by the operating system.
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* sverk/ets-compressed-binary-bug/OTP-10182:
Fix corrupted binaries in compressed ETS tables
Make ETS compile with #define DEBUG_CLONE
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Incorrect window was used to calculate x position.
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Putenv and getenv needs to convert to the proper environment
strings in Unicode depending on platform and user settings for filename
encoding. Also erlexec needs to pass environment strings in an appropriate
way for kernel to pick up. All environment strings on the command
line, as well as home directory, is now passed in UTF8 on windows
and in whatever encoding you have on Unix, kernel tries to convert all
parameters and environments from UTF8 before making strings.
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* mh/doc-now-vs-timestamp/OTP-10180:
Doc fix: link from erlang:now/0 to os:timestamp/0
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Changed:
erts/preloaded/ebin/erl_prim_loader.beam
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Conflicts:
erts/preloaded/ebin/erl_prim_loader.beam
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erl_prim_loader.beam
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When correcting OTP-10071, a new error was introduced in
erl_prim_loader. In order to improve ability to detect if a file was
inside the primary archive, all paths were flattened - i.e. "." and
".." were removed. This implementation had some faults, and it did not
take symlinks into account. This has been corrected.
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* rickard/tab-unref-thr-prgr/OTP-10167:
Use thread progress instead of scheduling misc aux work were possible
Conflicts:
erts/emulator/beam/erl_process.h
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* rickard/proc-sched/OTP-9892:
Read message queue lengths while having lock
Remove development debug code
Fix bug scheduling free processes
Conflicts:
erts/emulator/beam/erl_message.c
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Functionality for scheduling operations at thread progress later
has been introduced.
Deallocation of ETS table structures were previously done by scheduling
misc aux work. Deallocation of process structures (not released yet)
was also implemented this way. Instead of using the misc aux work
functionality these implementation now use the newly introduced
functionality for scheduling operations at thread progress later. By
using this new functionaliy we reduce the amount of memory
allocation/deallocation operations needed.
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Conflicts:
erts/emulator/beam/erl_process.c
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erlang:universaltime_to_localtime is leap seconds-aware (since 2008),
however erlang:localtime_to_universaltime is not, which gives
surprising results on systems configured with leap seconds-aware
timezones:
1> erlang:universaltime_to_localtime({{2012,1,1},{0,0,0}}).
{{2012,1,1},{0,0,0}}
2> erlang:localtime_to_universaltime({{2012,1,1},{0,0,0}}).
{{2012,1,1},{0,0,24}}
and completely breaks calendar:local_time_to_universal_time_dst:
3> calendar:local_time_to_universal_time_dst({{2011,1,1},{0,0,0}}).
[]
Signed-off-by: Piotr Sikora <[email protected]>
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Commit 1eef765 introduced regression (conditional _always_ evaluates
to true) in which erlang:localtime_to_universaltime/2 stopped working
on systems configured with timezone without DST (i.e. UTC) on *BSD
platforms:
1> erlang:localtime_to_universaltime({{2012,1,1},{0,0,0}}, true).
** exception error: bad argument
Signed-off-by: Piotr Sikora <[email protected]>
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* maint:
Use annotate level 1 for 'gdb' with 'emacs' in 'cerl'
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* rickard/cerl-emacs-gdb:
Use annotate level 1 for 'gdb' with 'emacs' in 'cerl'
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* maint:
Use static allocation of process lock queues
Conflicts:
erts/emulator/beam/erl_process_lock.c
erts/emulator/beam/erl_process_lock.h
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* rickard/proc-lock-queues/OTP-10163:
Use static allocation of process lock queues
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* maint:
Improve the enqueue operation of delayed dealloc
Implement delayed aux work wake up
Conflicts:
erts/emulator/beam/erl_alloc_util.c
erts/emulator/beam/erl_process.h
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* rickard/dealloc/OTP-10162:
Improve the enqueue operation of delayed dealloc
Implement delayed aux work wake up
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Windows will send the SERVICE_CONTROL_SHUTDOWN event to the service control
handler when shutting down the system. Instead of ignoring the event, erlsrv
will now invoke the stop action. Likewise, the Erlang emulator (and it's port
drivers) must not quit upon reception of the CTRL_SHUTDOWN_EVENT event in the
console control handler.
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By using statically allocated lock queues there is no longer
any need for locking corresponding pix lock when process
locks have been transferred after a wait. This costs us 3 words
extra in process structure, but improves performance during
contention.
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The enqueue operation have been re-written to behave better
during heavy contention by spreading writes over multiple
locations. This enqueue operation also take advantage of the
delayed aux work wake up functionality and can by this omit
one memory barrier.
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By using a delayed aux work wake up approach, a memory barrier
can be omitted in the delayed dealloc enqueue operation. The
amount of operations, on the potentially contended, wake up
structure is also reduced.
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* rickard/fix-warnings/master:
Only use "gcc optimizer hack" when needed
Silence warnings
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* egil/r16/remove-vxworks-support/OTP-10146: (30 commits)
erts: Update doc to reflect VxWorks removal
erts: Remove VxWorks from documentation
Update preloaded erl_prim_loader and prim_file
snmp: Remove VxWorks
megaco: Remove VxWorks
diameter: Remove VxWorks
mnesia: Remove VxWorks
typer: Remove VxWorks
ssh: Remove VxWorks
inets: Remove VxWorks
hipe: Remove VxWorks
cosFileTransfer: Remove VxWorks
asn1: Remove VxWorks
orber: Remove VxWorks
os_mon: Remove VxWorks
runtime_tools: Remove VxWorks
test_server: Remove VxWorks references in doc
test_server: Remove VxWorks
stdlib: Remove VxWorks
kernel: Remove VxWorks from tests
...
Conflicts:
erts/emulator/test/Makefile
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Sometimes os:timestamp/0 is more appropriate than erlang:now/0. The
documentation for the former has a link to the latter; this patch adds
a link in the other direction to make os:timestamp/0 more visible.
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The previous iteration didn't work for big-endian systems. Now use
code very close to what Erts does internally.
Also, only warn when the double endianness is unknown - i.e. when
we're cross-compiling.
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