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Document the existence of the otp_build update_primary command,
to verify that the bootstrap beam files match the source files.
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Ensure that we cannot get any dangling pointers into code that
has been purged. This is done by a two phase purge. At first
phase all fun entries pointing into the code to purge are marked
for purge. All processes trying to call these funs will be suspended
and by this we avoid getting new direct references into the code.
When all processes has been checked, these processes are resumed.
The new purge strategy now also completely ignore the existence of
indirect references to the code (funs). If such exist, they will
cause bad fun exceptions to the caller, but will not prevent a
soft purge or cause a kill of a process having such live references
during a hard purge. This since it is impossible to give any
guarantees that no processes in the system have such indirect
references. Even when the system is completely clean from such
references, new ones can appear via distribution and/or disk.
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* RicoAntonioFelix/patch-1/PR-1003:
Update INSTALL.md
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* Fixed a grammatical error.
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Remove the options:
--enable-darwin-universal
--enable-darwin-64bit
The --enable-darwin-universal option turns on universal binaries
(Intel/PPC). It does not work on modern releases of OS X, and
OTP 19 will most not likely build on an OS X release that still
supports universal builds.
The --enable-darwin-64bit option is not needed, because 64-bit builds
are default on modern OS X releases. There is also the generic
--enable-m64-build option.
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* henrik/doc-fixes:
Fix typo in INSTALL.md
Update README.md
Fix typo in 'app' documentation
s/is/are
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Found a spelling mistake -
`achived` > `achieved`
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* sverk/openssl-config-doc:
Add --with-ssl-incl and --with-ssl-rpath to docs
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* derek121/docs_fop_details:
Add details on the FOP formatter
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* appeltel/docfix_osx_install_wx_branch:
Fix osx install wxWidgets instructions
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I found that I needed to take the two steps I added to INSTALL.md for
this PR, or else fop execution when doing a "make docs" would fail with
either a Java ClassNotFoundException or command "fop" not found:
* Adding the FOP install directory to $FOP_HOME
* Adding the fop script to $PATH
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* rickard/disable-saved-compile-time/OTP-12971:
Add configure switch --disable-saved-compile-time
Conflicts:
HOWTO/INSTALL.md
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- Documented the configure switch --with-clock-resolution=<RES>
- Changed default clock source for OS system time on Darwin to
gettimeofday(). In order to use clock_get_time(CALENDER_CLOCK, ...)
on Darwin, the user has to pass --with-clock-resolution=high when
configuring the build.
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wxWidgets does not have a branch named `WX_3_0_branch`, but has
`WX_3_0_BRANCH` Trying to clone with `--branch` set to the lowercase
name fails. Fix branch name to `WX_3_0_BRANCH`.
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Forces usage of gettimeofday() for OS system time
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* Use of __atomic builtins when available.
* Improved configure test that checks for missing memory
barrier in __sync_synchronize(). The old approach was to
verify known working gcc versions and check gcc version at
compile time. Besides not being very safe, the old approach
often unnecessarily caused usage of the very expensive
workaround.
* Introduced (no overhead) workaround for missing clobber in
__sync_synchronize() when using buggy LLVM implementation of
__sync_synchronize().
* Implement native memory barriers for ARM processors supporting
the DMB instruction.
* Use of volatile store on Alpha as atomic set operation if no
__atomic_store_n() is available (already used on x86/x86_64
Sparc V9, PowerPC, and MIPS). Fallback used when not using
volatile store is typically very expensive.
* Use volatile load on Alpha and ARM as atomic read operation
if no __atomic_load_n() is available (already used on
x86/x86_64 Sparc V9, PowerPC, and MIPS). Fallback when not
using volatile load is typically very expensive.
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The master branch has incompatible changes by default. The safest
course for now is to use the WX_3_0_branch.
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In 9f57d8c4f86323cf7481c9a7e512486087bb5542, the configure option
--enable-shared-zlib. It was replaced with --enable-builtin-zlib.
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The build and install documentation was not complete
and needed some restructuring.
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Updating to reflect the instructions found on the mailing list.
http://erlang.org/pipermail/erlang-questions/2012-April/066184.html
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* rickard/configure-defaults/OTP-11723:
Always default to disabled floating point exceptions on Linux
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This since there exist unresolved stability issues in the implementation
for Linux.
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Enables build of documentation in source trees that has been cross built
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* vinoski/ds:
initial support for dirty schedulers and dirty NIFs
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Add initial support for dirty schedulers.
There are two types of dirty schedulers: CPU schedulers and I/O
schedulers. By default, there are as many dirty CPU schedulers as there are
normal schedulers and as many dirty CPU schedulers online as normal
schedulers online. There are 10 dirty I/O schedulers (similar to the choice
of 10 as the default for async threads).
By default, dirty schedulers are disabled and conditionally compiled
out. To enable them, you must pass --enable-dirty-schedulers to the
top-level configure script when building Erlang/OTP.
Current dirty scheduler support requires the emulator to be built with SMP
support. This restriction will be lifted in the future.
You can specify the number of dirty schedulers with the command-line
options +SDcpu (for dirty CPU schedulers) and +SDio (for dirty I/O
schedulers). The +SDcpu option is similar to the +S option in that it takes
two numbers separated by a colon: C1:C2, where C1 specifies the number of
dirty schedulers available and C2 specifies the number of dirty schedulers
online. The +SDPcpu option allows numbers of dirty CPU schedulers available
and dirty CPU schedulers online to be specified as percentages, similar to
the existing +SP option for normal schedulers. The number of dirty CPU
schedulers created and dirty CPU schedulers online may not exceed the
number of normal schedulers created and normal schedulers online,
respectively. The +SDio option takes only a single number specifying the
number of dirty I/O schedulers available and online. There is no support
yet for programmatically changing at run time the number of dirty CPU
schedulers online via erlang:system_flag/2. Also, changing the number of
normal schedulers online via erlang:system_flag(schedulers_online,
NewSchedulersOnline) should ensure that there are no more dirty CPU
schedulers than normal schedulers, but this is not yet implemented. You can
retrieve the number of dirty schedulers by passing dirty_cpu_schedulers,
dirty_cpu_schedulers_online, or dirty_io_schedulers to
erlang:system_info/1.
Currently only NIFs are able to access dirty scheduler
functionality. Neither drivers nor BIFs currently support dirty
schedulers. This restriction will be addressed in the future.
If dirty scheduler support is present in the runtime, the initial status
line Erlang prints before presenting its interactive prompt will include
the indicator "[ds:C1:C2:I]" where "ds" indicates "dirty schedulers", "C1"
indicates the number of dirty CPU schedulers available, "C2" indicates the
number of dirty CPU schedulers online, and "I" indicates the number of
dirty I/O schedulers.
Document The dirty NIF API in the erl_nif man page. The API closely follows
Rickard Green's presentation slides from his talk "Future Extensions to the
Native Interface", presented at the 2011 Erlang Factory held in the San
Francisco Bay Area. Rickard's slides are available online at
http://bit.ly/1m34UHB .
Document the new erl command-line options, the additions to
erlang:system_info/1, and also add the erlang:system_flag/2 dirty scheduler
documentation even though it's not yet implemented.
To determine whether the dirty NIF API is available, native code can check
to see whether the C preprocessor macro ERL_NIF_DIRTY_SCHEDULER_SUPPORT is
defined. To check if dirty schedulers are available at run time, native
code can call the boolean enif_have_dirty_schedulers() function, and Erlang
code can call erlang:system_info(dirty_cpu_schedulers), which raises
badarg if no dirty scheduler support is available.
Add a simple dirty NIF test to the emulator NIF suite.
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Remove confusing and obsolete build instructions for Lion.
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Added info how to generate configure file if building from git.
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* maint:
Refactor and change EXTRA_APPLICATIONS to use ls
Add configure option --without-$app
Conflicts:
HOWTO/INSTALL.md
lib/Makefile
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This is used to skip the specified app when building and releasing
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Build with fallback can be enabled by passing the `configure` command
line argument `--disable-smp-require-native-atomics`
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