2010-01-22 00:03:26 +01:00
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Bionic ChangeLog:
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-----------------
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2010-05-12 01:39:22 +02:00
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Differences between current and Android 2.2:
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2010-06-28 23:20:22 +02:00
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- <pthread.h>: Add reader/writer locks implementation. Add sanity
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checking to pthread_mutex_destroy() (e.g. a locked mutex will return
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EBUSY).
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2010-05-12 01:39:22 +02:00
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2010-06-03 03:12:12 +02:00
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- <semaphore.h>: Use private futexes for semaphore implementation,
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unless your set 'pshared' to non-0 when calling sem_init().
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2010-06-28 23:10:14 +02:00
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Also fixed a bug in sem_post() to make it wake up all waiting
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threads, instead of one. As a consequence, the maximum semaphore
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value is now reduced to 0x3fffffff.
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2010-06-09 23:35:29 +02:00
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- <math.h>: Added sincos(), sincosf() and sincosl() (GLibc compatibility).
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2010-05-20 19:55:45 +02:00
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- <sys/sysinfo.h>: Added missing sysinfo() system call implementation
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(the function was already declared in the header though).
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2010-06-10 03:15:57 +02:00
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- sysconf() didn't work for some arguments due to a small bug in the
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/proc line parser.
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2010-06-11 22:30:25 +02:00
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- <termio.h>: added missing header (just includes <termios.h>)
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2010-06-11 23:37:34 +02:00
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- <unistd.h>: add missing declaration for truncate(). The implementation
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was already here since Android 1.5.
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2010-07-09 02:19:07 +02:00
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modify implementation of alarm() to return 0 in case of error (i.e.
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if a value larger than 0x7fffffff seconds is passed to it). This
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makes the implementation compliant with the GLibc behaviour.
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2010-06-15 02:18:35 +02:00
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- <wchar.h>: small fixes to really support wchar_t in Bionic (not there yet).
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the size of wchar_t is still 32-bit (decided by the compiler)
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WCHAR_MIN: changed from 0 to INT_MIN
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WCHAR_MAX: changed from 255 to INT_MAX
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wcpcpy(), wcpncpy(), wcscat(), wcschr(), wcscmp(),
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wcscpy(), wcscspn(), wcsdup(), wcslcat(), wcslcpy(),
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wcslen(), wcsncat(), wcsncmp(), wcsncpy(), wcsnlen(),
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wcspbrk(), wcsrchr(), wcsrchr(), wcsspn(), wcsstr(),
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wcstok(), wcswidth(), wmemchr(), wmemcmp(), wmemcpy(),
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wmemmove(), wmemset(): Added proper implementations.
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wcscasecmp(), wcsncasecmp(): Added implementation limited
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to ASCII codes for lower/upper.
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wcscoll(): added dummy implementation that calls wcscmp()
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wcsxfrm(): added dummy implementation that calls wcsncpy()
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NOTE: Technically, this breaks the ABI, but we never claimed to support
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wchar_t anyway. The wchar_t support is still *NOT* official at this
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point. We need better multi-byte support code, and wprintf/wscanf
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stuff too.
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2010-06-17 01:36:41 +02:00
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- <inttypes.h>: add missing declarations for strntoimax abd strntoumax.
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- <stdlib.h>: add missing declarations for drand48() and erand48().
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- clearerr(): fix broken implementation.
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- Feature test macros like _POSIX_C_SOURCE / _XOPEN_SOURCE / _C99_SOURCE
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are now handled correctly by our C library headers (see <sys/cdefs.h>)
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- <sys/select.h>: add missing declaration for pselect()
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2010-07-09 01:52:27 +02:00
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- <sys/vfs.h>: fixed implementation of fstatfs() (also fixes fpathconf()
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which uses it).
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2010-06-17 01:36:41 +02:00
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2010-06-25 21:36:39 +02:00
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- Added an implementation of pthread_atfork()
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2010-07-22 01:18:21 +02:00
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- <dlfcn.h>: fixed dlopen() implementation to support dlopen(NULL, ...).
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This allows one to look at the dynamic symbols exported by an executable.
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2010-07-09 02:19:07 +02:00
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2010-05-12 01:39:22 +02:00
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-------------------------------------------------------------------------------
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Differences between Android 2.2. and Android 2.1:
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2010-01-22 00:03:26 +01:00
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2010-03-25 17:54:33 +01:00
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- Support FP register save/load in setjmp()/longjmp() on ARMv7 builds.
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2010-01-22 00:03:26 +01:00
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- Add support for SH-4 CPU architecture !
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- __atomic_swap(): use LDREX/STREX CPU instructions on ARMv6 and higher.
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- <arpa/telnet.h>: New header (declarations only, no implementation).
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- <err.h>: New header + implementation. GLibc compatibility.
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- <warn.h>: New header + implementation. GLibc compatibility.
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- <fts.h>: New header + implementation.
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- <mntent.h>: Add missing <stdio.h> include.
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- <regex.h>: New header + implementation.
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- <signal.h>: Added killpg()
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- <stdint.h>: Allow 64-bit type declarations on C99 builds.
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- <stdio.h>: Add fdprintf() and vfdprintf(). Note that GLibc provides
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the confusing 'dprintf' and 'vdprintf()' functions instead.
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- <stdlib.h>: Fix ptsname_r(): the return type is int instead of char*.
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The mistake comes from a GLibc man page bug (the man page listed a return
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type of char*, while the implementation used int. Fixed in late 2009 only).
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The Bionic implementation was incorrect. Technically, this is an ABI
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breakage, but code that used this function probably never worked or
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compiled properly anyway.
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- <strings.h>: Add missing <sys/types.h> include.
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- <sys/queue.h>: Added new header (no implementation - macro templates).
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- <sys/resource.h>: Add rlim_t proper definition.
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- <time64.h>: Add missing C++ header inclusion guards.
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- <unistd.h>: Add getusershell(), setusershell() and endusershell(), though
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implementation are bogus. GLibc compatibility.
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- <wchar.h>: Add mbstowcs() and wcstombs()
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2010-02-12 21:18:37 +01:00
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- add clone() implementation for ARM (x86 and SH-4 not working yet).
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- <sys/epoll.h>: <sys/system_properties.h>: Add missing C++ inclusion guards
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- fix getpwnam() and getpwgrp() to accept "app_0" as a valid user name.
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- fix sem_trywait() to return -1 and set errno to EAGAIN, instead of
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returning EAGAIN directly.
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2010-01-22 00:03:26 +01:00
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2010-02-12 21:50:32 +01:00
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- fix sem_post() to wake up multiple threads when called rapidly in
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succession.
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Implement support for RFC 3484 (address selection/sorting) in bionic. (The
Java changes required not to mess up the ordering from bionic will arrive in a
later commit.) In particular, this will give us more correct behavior when on a
6to4 network, in that IPv4 will usually be preferred over 6to4.
Most of RFC 3484 is implemented -- what's not is rule 3 (avoid deprecated
addresses), 4 (prefer home addresses) and 7 (prefer native transport) as they
require low-level access to the kernel routing table via netlink. (glibc also
started out this way, and these rules are primarily useful in pretty obscure
circumstances, so we should be fine for the time being.)
Also, rule 9 (use longest matching prefix) has been modified so it does not try
to sort IPv4 addresses; given current IPv4 addressing practice these rules are
pretty much meaningless. Finally, I've added support for Teredo as a separate
label, with slightly lower preference than 6to4. (Vista puts the preference
below IPv4 by default. glibc puts the preference together with non-tunneled
IPv6.)
Note that this patch removes support for the "sortlist" directive in
resolv.conf; I've never seen it in actual use, it's irrelevant for Android
(since we don't use resolv.conf anyway), and it's not clear how it would be
implemented alongside RFC 3484.
2010-02-11 15:44:55 +01:00
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- DNS: partial implementation of RFC3484 (rule 1, 2, 5, 6, 8, 10 and
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modified rule 9), for better address selection/sorting.
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In the process, removed code that was previously used for "sortlist"
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in /etc/resolv.conf. (resolv.conf is already ignored, so the latter
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is a no-op for actual functionality.)
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2010-03-01 20:30:40 +01:00
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- fix pthread_sigmask() to properly return an error code without touching
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errno. Previous implementation returned -1 on error, setting errno, which
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is not Posix compliant.
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2010-02-25 14:27:46 +01:00
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- add sigaltstack() implementation for ARM.
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2010-03-05 23:17:35 +01:00
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- <time.h>: Properly implement the 'timezone' and 'daylight' global variables
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(they were not defined previously, though declared in the header).
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- <time.h>: Fix timezone management implementation to properly update
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'tm_gmtoff' field in 'struct tm' structure.
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2010-03-09 00:13:04 +01:00
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- DNS: get rid of spurious random DNS queries when trying to resolve
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an unknown domain name. Due to an initialization bug, a random DNS search
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2010-03-18 22:07:42 +01:00
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list was generated for each thread if net.dns.search is not defined.
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- <pthread.h>: Add pthread_condattr_init/destroy/setpshared/getpshared functions
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to enable proper shared conditional variable initialization.
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2010-03-20 01:59:23 +01:00
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Modify the pthread_mutex_t and pthread_cond_t implementation to use private
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futexes for performance reasons. Mutexes and Condvars are no longer shareable
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between processes by default anymore, unless you use PTHREAD_PROCESS_SHARED
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with pthread_mutexattr_setpshared() and/or pthread_condattr_setpshared().
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2010-03-09 00:13:04 +01:00
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2010-01-22 00:03:26 +01:00
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-------------------------------------------------------------------------------
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Differences between Android 2.1 and 2.0.1:
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- zoneinfo: updated data tables to version 2009s
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-------------------------------------------------------------------------------
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Differences between Android 2.0.1 and 2.0:
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- abort(): ARM-specific hack to preserve the 'lr' register when abort()
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is called (GCC does not preserve it by default since it thinks that
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abort() never returns). This improves stack traces considerably.
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-------------------------------------------------------------------------------
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Differences between Android 2.0 and 1.6:
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- memcmp(), memcpy(): ARMv7 optimized versions.
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- pthread_mutexattr_setpshared(): implementation will not return ENOTSUP
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if PTHREAD_PROCESS_SHARED is used, because our Mutex implementation can
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work across multiple processes.
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*HOWEVER* it does not use "robust futexes" which means that held mutexes
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*are not* automatically released by the kernel when the owner process
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crashes or exits. This is only done to simplify communication between
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two always-live system processes, DO NOT USE THIS IN APPLICATIONS !
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- pthread_mutex_lock_timeout_np(): New Android-specific function to
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perform a timed lock (). In case of timeout, it returns EBUSY.
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- pthread_cond_timedwait_monotonic_np(): Same as pthread_cond_timedwait()
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but uses the monotonic clock(). Android-specific.
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- pthread_cond_timedwait_relative_np(): Same as pthread_cond_timedwait()
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but uses a relative timeout instead. Android-specific.
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- <netinet/in.h>: Now includes <netinet/in6.h>.
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- <netinet/in6.h>: Added IPV6_JOIN_GROUP, IPV6_LEAVE_GROUP, IN6ADDR_ANY_INIT
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and ipv6mr_interface definitions.
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- <time.h>:
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* Add missing tzset() declaration.
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* Add Android-specific strftime_tz().
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- getaddrinfo():
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Only perform IPv6 lookup for AF_UNSPEC if we have IPv6 connectivity.
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This saves one DNS query per lookup on non-IPv6 systems.
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- mktime(): Fix an infinite loop problen that appeared when switching to
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GCC 4.4.0.
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- strftime(): fix incorrect handling of dates > 2038 due to 64-bit issue
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in original code.
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-------------------------------------------------------------------------------
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Differences between Android 1.6 and 1.5:
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- C runtime: Fix runtime initialization to be called before any static C++
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constructors. This allows these to use pthread functions properly.
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- __aeabi_atexit(): Fix implementation to properly call C++ static destructors
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when the program exits (or when a shared library is unloaded).
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- <sys/stat.h>: added GLibc compatibility macros definitions:
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#define st_atimensec st_atime_nsec
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#define st_mtimensec st_mtime_nsec
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#define st_ctimensec st_ctime_nsec
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- getaddrinfo(): implementation will now allow numeric ports if ai_socktype is
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set to ANY. This is to match the GLibc behaviour.
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- getservent(): and getservent_r() incorrectly returned the port in host-endian
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order in the s_port field. It now returns it in big-endian order.
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- DNS: Allow underscore in the middle of DNS labels. While not really
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standard, this extension is needed for some VPN configurations and is
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supported by other operating systems.
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- DNS: Support for DNS domain search lists through the new net.dns.search
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system property. The corresponding value must be a space-separated list of
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domain suffixes.
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