blob: 08b2009b3e5cab44d241ef2549044ccead28b679 [file] [log] [blame]
David 'Digit' Turnerd6bf8f92010-01-21 15:03:26 -08001Bionic ChangeLog:
2-----------------
3
4Differences between current and Android 2.1:
5
6- Add support for SH-4 CPU architecture !
7
8- __atomic_swap(): use LDREX/STREX CPU instructions on ARMv6 and higher.
9
10- <arpa/telnet.h>: New header (declarations only, no implementation).
11
12- <err.h>: New header + implementation. GLibc compatibility.
13
14- <warn.h>: New header + implementation. GLibc compatibility.
15
16- <fts.h>: New header + implementation.
17
18- <mntent.h>: Add missing <stdio.h> include.
19
20- <regex.h>: New header + implementation.
21
22- <signal.h>: Added killpg()
23
24- <stdint.h>: Allow 64-bit type declarations on C99 builds.
25
26- <stdio.h>: Add fdprintf() and vfdprintf(). Note that GLibc provides
27 the confusing 'dprintf' and 'vdprintf()' functions instead.
28
29- <stdlib.h>: Fix ptsname_r(): the return type is int instead of char*.
30 The mistake comes from a GLibc man page bug (the man page listed a return
31 type of char*, while the implementation used int. Fixed in late 2009 only).
32 The Bionic implementation was incorrect. Technically, this is an ABI
33 breakage, but code that used this function probably never worked or
34 compiled properly anyway.
35
36- <strings.h>: Add missing <sys/types.h> include.
37
38- <sys/queue.h>: Added new header (no implementation - macro templates).
39
40- <sys/resource.h>: Add rlim_t proper definition.
41
42- <time64.h>: Add missing C++ header inclusion guards.
43
44- <unistd.h>: Add getusershell(), setusershell() and endusershell(), though
45 implementation are bogus. GLibc compatibility.
46
47- <wchar.h>: Add mbstowcs() and wcstombs()
48
David 'Digit' Turner294dd0b2010-02-12 12:18:37 -080049- add clone() implementation for ARM (x86 and SH-4 not working yet).
50
51- <sys/epoll.h>: <sys/system_properties.h>: Add missing C++ inclusion guards
52
53- fix getpwnam() and getpwgrp() to accept "app_0" as a valid user name.
54
55- fix sem_trywait() to return -1 and set errno to EAGAIN, instead of
56 returning EAGAIN directly.
David 'Digit' Turnerd6bf8f92010-01-21 15:03:26 -080057
David 'Digit' Turner4f920f62010-02-12 12:50:32 -080058- fix sem_post() to wake up multiple threads when called rapidly in
59 succession.
60
Steinar H. Gunderson9ab75d42010-02-11 15:44:55 +010061- DNS: partial implementation of RFC3484 (rule 1, 2, 5, 6, 8, 10 and
62 modified rule 9), for better address selection/sorting.
63 In the process, removed code that was previously used for "sortlist"
64 in /etc/resolv.conf. (resolv.conf is already ignored, so the latter
65 is a no-op for actual functionality.)
66
David 'Digit' Turner8f8b5312010-03-01 11:30:40 -080067- fix pthread_sigmask() to properly return an error code without touching
68 errno. Previous implementation returned -1 on error, setting errno, which
69 is not Posix compliant.
70
Andrei Popescueb9d5ed2010-02-25 13:27:46 +000071- add sigaltstack() implementation for ARM.
72
David 'Digit' Turnerd7ed1ae2010-03-05 14:17:35 -080073- <time.h>: Properly implement the 'timezone' and 'daylight' global variables
74 (they were not defined previously, though declared in the header).
75
76- <time.h>: Fix timezone management implementation to properly update
77 'tm_gmtoff' field in 'struct tm' structure.
78
David 'Digit' Turnerd378c682010-03-08 15:13:04 -080079- DNS: get rid of spurious random DNS queries when trying to resolve
80 an unknown domain name. Due to an initialization bug, a random DNS search
David 'Digit' Turneree7b0772010-03-18 14:07:42 -070081 list was generated for each thread if net.dns.search is not defined.
82
83- <pthread.h>: Add pthread_condattr_init/destroy/setpshared/getpshared functions
84 to enable proper shared conditional variable initialization.
85
David 'Digit' Turner88f06cd2010-03-18 17:13:41 -070086 Modify the pthread_mutex_t implementation to use private futexes for
87 performance reasons. Mutexes are no longer shareable between processes
88 by default anymore, unless you use PTHREAD_PROCESS_SHARED with
89 pthread_mutexattr_setpshared().
90
David 'Digit' Turneree7b0772010-03-18 14:07:42 -070091 XXX: The implementation still always uses shared condvars, independent
92 of the flags being selected. This will change in a later commit.
David 'Digit' Turnerd378c682010-03-08 15:13:04 -080093
David 'Digit' Turnerd6bf8f92010-01-21 15:03:26 -080094-------------------------------------------------------------------------------
95Differences between Android 2.1 and 2.0.1:
96
97- zoneinfo: updated data tables to version 2009s
98
99
100-------------------------------------------------------------------------------
101Differences between Android 2.0.1 and 2.0:
102
103- abort(): ARM-specific hack to preserve the 'lr' register when abort()
104 is called (GCC does not preserve it by default since it thinks that
105 abort() never returns). This improves stack traces considerably.
106
107
108-------------------------------------------------------------------------------
109Differences between Android 2.0 and 1.6:
110
111- memcmp(), memcpy(): ARMv7 optimized versions.
112
113- pthread_mutexattr_setpshared(): implementation will not return ENOTSUP
114 if PTHREAD_PROCESS_SHARED is used, because our Mutex implementation can
115 work across multiple processes.
116
117 *HOWEVER* it does not use "robust futexes" which means that held mutexes
118 *are not* automatically released by the kernel when the owner process
119 crashes or exits. This is only done to simplify communication between
120 two always-live system processes, DO NOT USE THIS IN APPLICATIONS !
121
122- pthread_mutex_lock_timeout_np(): New Android-specific function to
123 perform a timed lock (). In case of timeout, it returns EBUSY.
124
125- pthread_cond_timedwait_monotonic_np(): Same as pthread_cond_timedwait()
126 but uses the monotonic clock(). Android-specific.
127
128- pthread_cond_timedwait_relative_np(): Same as pthread_cond_timedwait()
129 but uses a relative timeout instead. Android-specific.
130
131- <netinet/in.h>: Now includes <netinet/in6.h>.
132
133- <netinet/in6.h>: Added IPV6_JOIN_GROUP, IPV6_LEAVE_GROUP, IN6ADDR_ANY_INIT
134 and ipv6mr_interface definitions.
135
136- <time.h>:
137 * Add missing tzset() declaration.
138 * Add Android-specific strftime_tz().
139
140- getaddrinfo():
141 Only perform IPv6 lookup for AF_UNSPEC if we have IPv6 connectivity.
142 This saves one DNS query per lookup on non-IPv6 systems.
143
144- mktime(): Fix an infinite loop problen that appeared when switching to
145 GCC 4.4.0.
146
147- strftime(): fix incorrect handling of dates > 2038 due to 64-bit issue
148 in original code.
149
150-------------------------------------------------------------------------------
151Differences between Android 1.6 and 1.5:
152
153- C runtime: Fix runtime initialization to be called before any static C++
154 constructors. This allows these to use pthread functions properly.
155
156- __aeabi_atexit(): Fix implementation to properly call C++ static destructors
157 when the program exits (or when a shared library is unloaded).
158
159- <sys/stat.h>: added GLibc compatibility macros definitions:
160
161 #define st_atimensec st_atime_nsec
162 #define st_mtimensec st_mtime_nsec
163 #define st_ctimensec st_ctime_nsec
164
165- getaddrinfo(): implementation will now allow numeric ports if ai_socktype is
166 set to ANY. This is to match the GLibc behaviour.
167
168- getservent(): and getservent_r() incorrectly returned the port in host-endian
169 order in the s_port field. It now returns it in big-endian order.
170
171- DNS: Allow underscore in the middle of DNS labels. While not really
172 standard, this extension is needed for some VPN configurations and is
173 supported by other operating systems.
174
175- DNS: Support for DNS domain search lists through the new net.dns.search
176 system property. The corresponding value must be a space-separated list of
177 domain suffixes.