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* bjorn/kernel/code-loading:
kernel application: Start code server first
code: Reduce overhead of native code checking for loaded modules
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When the code server has started, it will read the .beam files
for all loaded modules to see whether they contain native code
that should be loaded. To make that as fast as possible when
we have no native code, start the code server as early as possible
to minimize the number .beam files that must be read from disk.
The code server does not use the 'file' module, so it is OK to
start the code server before starting the file_server process.
On my computer, the time for checking the loaded modules for
native code is reduced from roughly 2 ms to 1.5 ms.
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When the code server has been started, the function
load_native_code_for_all_loaded/0 will check whether the .beam
files for all loaded modules contain any native code. If there
is native code, it will be loaded.
If there is no native code, on my computer the check will take about
10 ms. That time can be reduced to about 2 ms if we replace the call
to code beam_lib:chunks/2 with a call to prim_file:read_file/1 to read
the file and a call to code:get_chunk/2 to check whether the chunk for
native code is present.
Furthermore, the entire check can be spawned off to a separate
process and done in parallel with OTP starting up.
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* peppe/jcl_mode_improvements:
Fix problem with unitialized edlin text buffer
Fix shell crash when in switch command mode
OTP-12673
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* egil/opt-instructions/OTP-12690:
erts: Specialize minus and plus instruction
erts: Add move2 specialization for common move patterns
erts: Specialize rem instruction for common case
erts: Specialize band instruction for common case
erts: Batch loads and stores for move_window
erts: Fix loader increment from minus instruction
erts: Add move window instruction
erts: Add instruction move3 for xy and xx
erts: Specialize compare instructions
kernel: Add instruction_count helper to erts_debug
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Also make it possible to copy text buffer from current group
process to the JCL mode
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The user_drv process can crash if ctrl-y is pressed when in switch command mode (ctrl-g).
This is due to switch mode using edlin to parse the input.
And edlin uses the process dictionary to store the kill_buffer.
However the kill_buffer is undefined if not initialized by edlin:init/0
which makes the user_drv process crash since edlin is calling list:reverse/2 with undefined.
Fix calles edlin:init/0 once before server_loop is entered.
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=== OTP-17.5 ===
Changed Applications:
- asn1-3.0.4
- common_test-1.10
- compiler-5.0.4
- crypto-3.5
- debugger-4.0.3
- dialyzer-2.7.4
- diameter-1.9
- eldap-1.1.1
- erts-6.4
- hipe-3.11.3
- inets-5.10.6
- kernel-3.2
- mnesia-4.12.5
- observer-2.0.4
- os_mon-2.3.1
- public_key-0.23
- runtime_tools-1.8.16
- ssh-3.2
- ssl-6.0
- stdlib-2.4
- syntax_tools-1.6.18
- test_server-3.8
- tools-2.7.2
- wx-1.3.3
Unchanged Applications:
- cosEvent-2.1.15
- cosEventDomain-1.1.14
- cosFileTransfer-1.1.16
- cosNotification-1.1.21
- cosProperty-1.1.17
- cosTime-1.1.14
- cosTransactions-1.2.14
- edoc-0.7.16
- erl_docgen-0.3.7
- erl_interface-3.7.20
- et-1.5
- eunit-2.2.9
- gs-1.5.16
- ic-4.3.6
- jinterface-1.5.12
- megaco-3.17.3
- odbc-2.10.22
- orber-3.7.1
- ose-1.0.2
- otp_mibs-1.0.10
- parsetools-2.0.12
- percept-0.8.10
- reltool-0.6.6
- sasl-2.4.1
- snmp-5.1.1
- typer-0.9.8
- webtool-0.8.10
- xmerl-1.3.7
Conflicts:
OTP_VERSION
erts/vsn.mk
lib/ssl/vsn.mk
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* rickard/time_api/OTP-11997: (22 commits)
Update primary bootstrap
inets: Suppress deprecated warning on erlang:now/0
inets: Cleanup of multiple copies of functions Add inets_lib with common functions used by multiple modules
inets: Update comments
Suppress deprecated warning on erlang:now/0
Use new time API and be back-compatible in inets Remove unused functions and removed redundant test
asn1 test SUITE: Eliminate use of now/0
Disable deprecated warning on erlang:now/0 in diameter_lib
Use new time API and be back-compatible in ssh
Replace all calls to now/0 in CT with new time API functions
test_server: Replace usage of erlang:now() with usage of new API
Replace usage of erlang:now() with usage of new API
Replace usage of erlang:now() with usage of new API
Replace usage of erlang:now() with usage of new API
Replace usage of erlang:now() with usage of new API
otp_SUITE: Warn for calls to erlang:now/0
Replace usage of erlang:now() with usage of new API
Multiple timer wheels
Erlang based BIF timer implementation for scalability
Implement ethread events with timeout
...
Conflicts:
bootstrap/bin/start.boot
bootstrap/bin/start_clean.boot
bootstrap/lib/compiler/ebin/beam_asm.beam
bootstrap/lib/compiler/ebin/compile.beam
bootstrap/lib/kernel/ebin/auth.beam
bootstrap/lib/kernel/ebin/dist_util.beam
bootstrap/lib/kernel/ebin/global.beam
bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
bootstrap/lib/kernel/ebin/inet_db.beam
bootstrap/lib/kernel/ebin/inet_dns.beam
bootstrap/lib/kernel/ebin/inet_res.beam
bootstrap/lib/kernel/ebin/os.beam
bootstrap/lib/kernel/ebin/pg2.beam
bootstrap/lib/stdlib/ebin/dets.beam
bootstrap/lib/stdlib/ebin/dets_utils.beam
bootstrap/lib/stdlib/ebin/erl_tar.beam
bootstrap/lib/stdlib/ebin/escript.beam
bootstrap/lib/stdlib/ebin/file_sorter.beam
bootstrap/lib/stdlib/ebin/otp_internal.beam
bootstrap/lib/stdlib/ebin/qlc.beam
bootstrap/lib/stdlib/ebin/random.beam
bootstrap/lib/stdlib/ebin/supervisor.beam
bootstrap/lib/stdlib/ebin/timer.beam
erts/aclocal.m4
erts/emulator/beam/bif.c
erts/emulator/beam/erl_bif_info.c
erts/emulator/beam/erl_db_hash.c
erts/emulator/beam/erl_init.c
erts/emulator/beam/erl_process.h
erts/emulator/beam/erl_thr_progress.c
erts/emulator/beam/utils.c
erts/emulator/sys/unix/sys.c
erts/preloaded/ebin/erlang.beam
erts/preloaded/ebin/erts_internal.beam
erts/preloaded/ebin/init.beam
erts/preloaded/src/erts_internal.erl
lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl
lib/diameter/src/base/diameter_lib.erl
lib/kernel/src/os.erl
lib/ssh/test/ssh_basic_SUITE.erl
system/doc/efficiency_guide/advanced.xml
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The old time API is based on erlang:now/0. The major issue with
erlang:now/0 is that it was intended to be used for so many
unrelated things. This tied these unrelated operations together
and unnecessarily caused performance, scalability as well as
accuracy, and precision issues for operations that do not need
to have such issues. The new API spreads different functionality
over multiple functions in order to improve on this.
The new API consists of a number of new BIFs:
- erlang:convert_time_unit/3
- erlang:monotonic_time/0
- erlang:monotonic_time/1
- erlang:system_time/0
- erlang:system_time/1
- erlang:time_offset/0
- erlang:time_offset/1
- erlang:timestamp/0
- erlang:unique_integer/0
- erlang:unique_integer/1
- os:system_time/0
- os:system_time/1
and a number of extensions of existing BIFs:
- erlang:monitor(time_offset, clock_service)
- erlang:system_flag(time_offset, finalize)
- erlang:system_info(os_monotonic_time_source)
- erlang:system_info(time_offset)
- erlang:system_info(time_warp_mode)
- erlang:system_info(time_correction)
- erlang:system_info(start_time)
See the "Time and Time Correction in Erlang" chapter of the
ERTS User's Guide for more information.
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* egil/maps/hamt/OTP-12585: (113 commits)
erts: Fix bug in ESTACK and WSTACK
kernel: Add spec for erts_debug:map_info/1
mnesia: Update mnesia tests to reflect new ETS hash
erts: Ensure maps uses _rel functions in halfword
erts: Do not treat errors as fatal in erl_printf_term
erts: Update preloaded erts_internal.beam
erts: Add map decomposition wrappers
erts: Ensure halfword has correct temp-heap for maps
hipe: Handle separate hashmap tag correctly
erts: Fix map bug in dec_term for 32-bit debug VM
stdlib: Update qlc tests to reflect new ETS hash
stdlib: Remove obsolete hashmap references in io_lib
erts: Enhance maps ordering tests
hipe: Fix maps sort order testcase
erts: Remove unused variable in crashdump creation
erts: Fix typo in copy_struct for halfword emulator
erts: Restrict GCC intrinsics by compiler version
erts: Fix windows bug in hashmap_info
erts: Fix typo in make_hash2 for 32-bit arch
Fix beam_load assert
...
Conflicts:
erts/emulator/beam/bif.tab
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* wmalik/minor-fixes:
Fix proc_lib doc
Remove commented out code
Fix make_hash description
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* essen/zlib-windowbits:
Update zlib:zwindowbits/0 type to accept 8 and -8
OTP-12564
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* raimo/infinite-loop-gethostbyname/OTP-12133:
Restore lookup order after test
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This commit introduces two BIFs:
* erts_internal:map_type/1
* erts_internal:map_hashmap_children/1
erts_internal:map_hashmap_children/1 is only intended for use within
erts_debug:size/1 since the internal hashmap node is not allowed to
leak anywhere.
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* dgud/kernel/unicode_file_read/OTP-12144:
kernel: Add test for unicode mode in file
kernel: Fix file:read_line/1 unicode error handling
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When a file was opened with some unicode encoding, file:read_line/1
could return unicode codepoints > 255 in list mode and wrong error
message in bin mode.
Chose to break out 'get_line' functionality from get_chars/5 since
'get_until' handling is different (comes from io module which should
return unicode lists) and seems to have its own (doc?) problems.
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* seriyps/zlib-inflate-bound:
Add zlib limited output buffer size functionality
Conflicts:
erts/preloaded/ebin/zlib.beam
OTP-12548
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Commit 7e8f5a776cbfa376e03369d058a90c8dd9f217fc (importing R11B-3)
updated zlib, which had changed what values it accepts for window
bits from 9-15 to 8-15.
From deflate.c:
- windowBits < 9 || windowBits > 15 || level < 0 || level > 9 ||
- strategy < 0 || strategy > Z_HUFFMAN_ONLY) {
+ windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
+ strategy < 0 || strategy > Z_FIXED) {
return Z_STREAM_ERROR;
}
+ if (windowBits == 8) windowBits = 9; /* until 256-byte window bug fixed */
In inflate.c 8 was already an accepted value.
This commit updates OTP to also accept the values 8 and -8.
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* raimo/inet_tcp_dist-priority-option/OTP-12476:
Document kernel inet_dist_{listen,connect}_options
Test kernel inet_dist_{listen,connect}_options
Implement kernel inet_dist_{listen,connect}_options
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* rokob/eliminate-duplication-app-controller:
Add helper function to reduce code duplication
OTP-12524
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* nifoc/inet_doc_fixes:
Fix typos ("received to the socket")
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* raimo/infinite-loop-gethostbyname/OTP-12133:
Remove infinite loop in inet:gethostbyname_tm/4
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* ethercrow/export_gen_udp_socket:
Export type gen_udp:socket/0
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An erroneous lookup option is needed to trigger the bug, and that can only
enter the system from a parsed file e.g .inetrc.
Pinpointed by Emil Holmström
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I was going through application_controller.erl looking for why
something was behaving a certain way, saw a comment about removing
this duplicated code one day, and decided to move that a step forward.
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This functionality may be useful for compressed streams with high
compression ratio (in case of gzip it may be up to x1000), when
small amount of compressed data will produce large amount of
uncompressed output. This may lead to DoS attacks, because
server easily goes out of memory.
Example of such high compression ratio stream:
```
dd if=/dev/zero of=sparse.bin bs=1MB count=100 # 100mb of zeroes
gzip sparse.bin # 95kb sparse.bin.gz
$ erl
> {ok, Compressed} = file:read_file("sparse.bin.gz"),
> 97082 = size(Compressed),
> Uncompressed = zlib:gunzip(Compressed),
> 100000000 = iolist_size(Uncompressed).
```
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The hipe_bifs:make_native_stub/2 and hipe_bifs:get_emu_address/1
BIFs were originally used by hipe_unified_loader.erl, but the
code been obsolete and disabled for ages.
Remove the BIFs and all references to them.
In hipe_unified_loader.erl, remove the no-op emu_make_stubs/1
function.
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* nox/standard_error/OTP-12424:
Test standard_error
Properly handle broken input in standard_error
Fix io:getopts(standard_error)
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