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Giving the beam_makeops script access to the external word
size (=the size of instruction words) will allow it to pack
more operands into a word for the 64 bits emulator.
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* pan/inet6_corrections/OTP-8969:
Stop using uncertain flags for getaddrinfo()
Teach inet_test_lib to understand enetunreach
Make windows inet_gethost work for ipv6
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The AI_V4MAPPED flag is falling out of grace in modern
IPv6 stacks, for security reasons, e.g. FreeBSD do not
document it any longer. The AI_ADDRCONFIG flag have
got unclear semantics on the same OS.
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* pg/freebsd-cpu-affinity-and-topology:
Add support for CPU affinity & topology detection on FreeBSD 8
OTP-8939
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* rickard/configure-help/OTP-8859:
Cleanup configure help texts
Conflicts:
erts/aclocal.m4
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* mk/net-dragonfly-bsd-patches:
Remove unused variables
Use proper install method
Add support for DragonFly BSD
Add support for NetBSD
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* ms/inet-bug-fixes:
inet: support retrieving MAC address on BSD
inet: fix getservbyname buffer overflow
inet: fix ifr_name buffer overflow
inet: null terminate ifr_name buffer
OTP-8816
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On systems supporting getaddrinfo(), support looking up the MAC
address from inet:ifget/2. The results have the same quirks as with
Linux: if the MAC address is longer than 6 bytes (e.g., fw0 under
Mac OS X), the address is truncated; if the interface does not have
a MAC address (e.g., lo0), an address consisting of 0's is returned.
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* pan/local_univ_time_bsd/OTP-8580:
Teach erl_time_sup to handle timezones w/o DST on FreeBSD as on other platforms
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Building in a source tree without prebuilt platform independent
build results failed on the SSL examples when building on
Windows.
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Building in a source tree without prebuilt platform independent
build results failed on the SSL examples when cross building.
This has been solved by not building the SSL examples during a
cross build.
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* rickard/nptl-configure/OTP-8774:
Removed unused define
Fix propagation of nptl info
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elib_malloc is an alternate memory allocator that
is no longer possible to build.
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These are the current NetBSD pkgsrc patches.
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Large parts of the ethread library have been rewritten. The
ethread library is an Erlang runtime system internal, portable
thread library used by the runtime system itself.
Most notable improvement is a reader optimized rwlock
implementation which dramatically improve the performance of
read-lock/read-unlock operations on multi processor systems by
avoiding ping-ponging of the rwlock cache lines. The reader
optimized rwlock implementation is used by miscellaneous
rwlocks in the runtime system that are known to be read-locked
frequently, and can be enabled on ETS tables by passing the
`{read_concurrency, true}' option upon table creation. See the
documentation of `ets:new/2' for more information.
The ethread library can now also use the libatomic_ops library
for atomic memory accesses. This makes it possible for the
Erlang runtime system to utilize optimized atomic operations
on more platforms than before. Use the
`--with-libatomic_ops=PATH' configure command line argument
when specifying where the libatomic_ops installation is
located. The libatomic_ops library can be downloaded from:
http://www.hpl.hp.com/research/linux/atomic_ops/
The changed API of the ethread library has also caused
modifications in the Erlang runtime system. Preparations for
the to come "delayed deallocation" feature has also been done
since it depends on the ethread library.
Note: When building for x86, the ethread library will now use
instructions that first appeared on the pentium 4 processor. If
you want the runtime system to be compatible with older
processors (back to 486) you need to pass the
`--enable-ethread-pre-pentium4-compatibility' configure command
line argument when configuring the system.
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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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Useful for informing the Operating System about the access pattern
for a file's data, so that it can adapt the caching strategy to
maximize disk IO performance.
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file:datasync/1 invokes the POSIX system call "int fdatasync(int fd)".
This system call is similar to "fsync" but, unlike fsync, it does not
update the metadata associated with the file (like the access time for
example). It's used by many DBMSs (MySQL and SQLite of example) to
increase disk IO performance, as it avoids disk seeks and disk write
operations compared to fsync.
More details on it at:
http://linux.die.net/man/2/fdatasync
An example, from the MySQL source:
http://bazaar.launchpad.net/~mysql/mysql-server/mysql-5.1-telco-6.1/annotate/head%3A/mysys/my_sync.c#L61
This new function just calls fsync on systems not implementing fdatasync.
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If FOP is not found create PDF files with fakefop script.
Signed-off-by: Tuncer Ayaz <[email protected]>
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The use of mmap() was unnecessarily disabled when cross compiling.
The configure arguments --with-ssl, and --with-odbc refused to accept
libraries outside of $erl_xcomp_sysroot when cross compiling for no good
reason.
The configure argument --with-odbc didn't handle the value yes correct.
The configure arguments --with-odbc, and --without-odbc have also been
added to the configure help.
(Thanks to Steve Vinoski for reporting these issues)
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Store Erlang terms in 32-bit entities on the heap, expanding the
pointers to 64-bit when needed. This works because all terms are stored
on addresses in the 32-bit address range (the 32 most significant bits
of pointers to term data are always 0).
Introduce a new datatype called UWord (along with its companion SWord),
which is an integer having the exact same size as the machine word
(a void *), but might be larger than Eterm/Uint.
Store code as machine words, as the instructions are pointers to
executable code which might reside outside the 32-bit address range.
Continuation pointers are stored on the 32-bit stack and hence must
point to addresses in the low range, which means that loaded beam code
much be placed in the low 32-bit address range (but, as said earlier,
the instructions themselves are full words).
No Erlang term data can be stored on C stacks (enforced by an
earlier commit).
This version gives a prompt, but test cases still fail (and dump core).
The loader (and emulator loop) has instruction packing disabled.
The main issues has been in rewriting loader and actual virtual
machine. Subsystems (like distribution) does not work yet.
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In UNIX test command, "==" is incorrect for string comparison;
"=" is the right operator. Originally pointed out by
Giacomo Olgeni in the following article:
http://www.erlang.org/pipermail/erlang-patches/2008-November/000334.html
and available as a FreeBSD port patch.
Accordingly fixed in erts/configure.in
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* pan/enable_m32_build:
Teach configure --enable-m32-build for forcing a 32-bit build
OTP-8415 configure learned the option --enable-m32-build to force the
building of a 32-bit run-time on systems where the default C
compiler generates 64-bit executables by default.
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* gc/hipe_darwin_amd64:
Fix hipe memory allocation problems on darwin/amd64
Porting x86 darwin fixes to amd64 darwin hipe asm/m4 code
Automatically enable hipe for darwin/amd64 builds
Allow configure to enable_hipe for darwin/amd64 builds
OTP-8416 HiPE now works in the 64-bit emulator on Mac OS X. (Thanks to
Geoff Cant.)
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tile-cc 2.0.1.78377 when compiling the runtime system.
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improvements.
Most notable:
Lots of cross compilation improvements. The old cross compilation
support was more or less non-existing as well as broken. Please,
note that the cross compilation support should still be
considered as experimental. Also note that old cross compilation
configurations cannot be used without modifications. For more
information on cross compiling Erlang/OTP see the
$ERL_TOP/xcomp/README file.
Support for staged install using <url
href="http://www.gnu.org/prep/standards/html_node/DESTDIR.html">D
ESTDIR</url>. The old broken INSTALL_PREFIX has also been fixed.
For more information see the $ERL_TOP/README file.
Documentation of the release target of the top Makefile. For more
information see the $ERL_TOP/README file.
make install now by default creates relative symbolic links
instead of absolute ones. For more information see the
$ERL_TOP/README file.
$ERL_TOP/configure --help=recursive now works and prints help for
all applications with configure scripts.
Doing make install, or make release directly after make all no
longer triggers miscellaneous rebuilds.
Existing bootstrap system is now used when doing make install, or
make release without a preceding make all.
The crypto and ssl applications use the same runtime library path
when dynamically linking against libssl.so and libcrypto.so. The
runtime library search path has also been extended.
The configure scripts of erl_interface and odbc now search for
thread libraries and thread library quirks the same way as erts
do.
The configure script of the odbc application now also looks for
odbc libraries in lib64 and lib/64 directories when building on a
64-bit system.
The config.h.in file in the erl_interface application is now
automatically generated in instead of statically updated which
reduces the risk of configure tests without any effect.
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improvements.
Most notable:
Lots of cross compilation improvements. The old cross compilation
support was more or less non-existing as well as broken. Please,
note that the cross compilation support should still be
considered as experimental. Also note that old cross compilation
configurations cannot be used without modifications. For more
information on cross compiling Erlang/OTP see the
$ERL_TOP/xcomp/README file.
Support for staged install using <url
href="http://www.gnu.org/prep/standards/html_node/DESTDIR.html">D
ESTDIR</url>. The old broken INSTALL_PREFIX has also been fixed.
For more information see the $ERL_TOP/README file.
Documentation of the release target of the top Makefile. For more
information see the $ERL_TOP/README file.
make install now by default creates relative symbolic links
instead of absolute ones. For more information see the
$ERL_TOP/README file.
$ERL_TOP/configure --help=recursive now works and prints help for
all applications with configure scripts.
Doing make install, or make release directly after make all no
longer triggers miscellaneous rebuilds.
Existing bootstrap system is now used when doing make install, or
make release without a preceding make all.
The crypto and ssl applications use the same runtime library path
when dynamically linking against libssl.so and libcrypto.so. The
runtime library search path has also been extended.
The configure scripts of erl_interface and odbc now search for
thread libraries and thread library quirks the same way as erts
do.
The configure script of the odbc application now also looks for
odbc libraries in lib64 and lib/64 directories when building on a
64-bit system.
The config.h.in file in the erl_interface application is now
automatically generated in instead of statically updated which
reduces the risk of configure tests without any effect.
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checking if CC equaled gcc. That is, the makefiles failed to
detect gcc C compilers with other command line names than gcc.
`configure' now substitute GCC into the makefiles. If CC is a gcc
C compiler, GCC will have the value yes. (Thanks to
Jean-S�bastien P�dron)
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* tc/premodern-fpe:
Add -D_XOPEN_SOURCE to CPPFLAGS on Darwin platforms
Test for reliable fpes on Darwin platforms without DARWIN_MODERN_MCONTEXT
OTP-8368 The configure test for reliable floating point exceptions has
been update to work on modern versions of Mac OS X. (Thanks to
Trannie Carter.)
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ucontext routines are deprecated in Snow Leopard and defining
_XOPEN_SOURCE is the suggested remedy.
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The mcontext_t structure changed between Tiger & Leopard and the erts
configure script doesn't take this into account when testing for
reliable floating point exceptions. HiPE is not enabled when reliable
fpes are not detected.
The PPC test preserves the pre-modern mcontext_t and so builds on Tiger,
but I suspect that PPC/Leopard is broken. I don't have the header files
to check modern PPC mcontext_t so I haven't changed that part of the test.
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new mandatory configuration variable that replaces all other
previously mandatory configuration variables, and better
documentation. Note that old cross compilation configurations
cannot be used without modifications.
For more information see the $ERL_TOP/xcomp/README file.
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