Fill out historical "what was added when" information.

Bug: N/A
Test: N/A
Change-Id: Ifa1807c6bb61dea2a4831785492b13118c66490d
This commit is contained in:
Elliott Hughes 2018-08-30 14:25:32 -07:00
parent 003521af47
commit 3876ade842

View file

@ -37,11 +37,11 @@ list of POSIX functions implemented by glibc but not by bionic.
Current libc symbols: https://android.googlesource.com/platform/bionic/+/master/libc/libc.map.txt
New libc functions in Q:
New libc functions in Q (API level 29):
* `timespec_get` (C11 `<time.h>` addition)
* `res_randomid` (in `<resolv.h>`)
New libc functions in P:
New libc functions in P (API level 28):
* `__freading`/`__fwriting` (completing <stdio_ext.h>)
* `endhostent`/`endnetent`/`endprotoent`/`getnetent`/`getprotoent`/`sethostent`/`setnetent`/`setprotoent` (completing <netdb.h>)
* `fexecve`
@ -58,12 +58,12 @@ New libc functions in P:
* `swab`
* `syncfs`
New libc behavior in P:
New libc behavior in P (API level 28):
* `%C` and `%S` support in the printf family (previously only the wprintf family supported these)
* `%mc`/`%ms`/`%m[` support in the scanf family
* `%s` support in strptime (strftime already supported it)
New libc functions in O:
New libc functions in O (API level 26):
* `sendto` FORTIFY support
* `__system_property_read_callback`/`__system_property_wait`
* legacy `bsd_signal`
@ -86,18 +86,90 @@ New libc functions in O:
* `strtod_l`/`strtof_l`/`strtol_l`/`strtoul_l`
* <wctype.h> `towctrans`/`towctrans_l`/`wctrans`/`wctrans_l`
New libc functions in N:
New libc functions in N (API level 24):
* more FORTIFY support functions (`fread`/`fwrite`/`getcwd`/`pwrite`/`write`)
* all remaining `_FILE_OFFSET_BITS=64` functions, completing `_FILE_OFFSET_BITS=64` support in bionic (8)
* all 7 `pthread_barrier*` functions
* all 5 `pthread_spin*` functions
* `lockf`/`preadv`/`pwritev`/`scandirat` and `off64_t` variants
* `adjtimex`/`clock_adjtime`
* `getifaddrs`/`freeifaddrs`/`if_freenameindex`/`if_nameindex`
* <ifaddrs.h> `getifaddrs`/`freeifaddrs`/`if_freenameindex`/`if_nameindex`
* `getgrgid_r`/`getgrnam_r`
* GNU extensions `fileno_unlocked`/`strchrnul`
* 32-bit `prlimit`
New libc functions in M (API level 23):
* <dirent.h> `telldir`, `seekdir`.
* <malloc.h> `malloc_info`.
* <netdb.h> `gethostbyaddr_r`, `gethostbyname2_r`.
* <pthread.h> `pthread_rwlockattr_getkind_np`/`pthread_rwlockattr_setkind_np`.
* <pty.h> `forkpty`, `openpty`.
* <signal.h> `sigqueue`, `sigtimedwait`, `sigwaitinfo`.
* <stdio.h> `fmemopen`, `open_memstream`, `feof_unlocked`, `ferror_unlocked`, `clearerr_unlocked`.
* <stdio_ext.h> `__flbf`, `__freadable`, `__fsetlocking`, `__fwritable`, `__fbufsize`, `__fpending`, `_flushlbf`, `__fpurge`.
* <stdlib.h> `mkostemp`/`mkostemps`, `lcong48`.
* <string.h> `basename`, `strerror_l`, `strerror_r`, `mempcpy`.
* <sys/sysinfo.h> `get_nprocs_conf`/`get_nprocs`, `get_phys_pages`, `get_avphys_pages`.
* <sys/uio.h> `process_vm_readv`/`process_vm_writev`.
* `clock_getcpuclockid`, `login_tty`, `mkfifoat`, `posix_madvise`, `sethostname`, `strcasecmp_l`/`strncasecmp_l`.
* <wchar.h> `open_wmemstream`, `wcscasecmp_l`/`wcsncasecmp_l`, `wmempcpy`.
* all of <error.h>.
* re-introduced various <resolv.h> functions: `ns_format_ttl`, `ns_get16`, `ns_get32`, `ns_initparse`, `ns_makecanon`, `ns_msg_getflag`, `ns_name_compress`, `ns_name_ntol`, `ns_name_ntop`, `ns_name_pack`, `ns_name_pton`, `ns_name_rollback`, `ns_name_skip`, `ns_name_uncompress`, `ns_name_unpack`, `ns_parserr`, `ns_put16`, `ns_put32`, `ns_samename`, `ns_skiprr`, `ns_sprintrr`, and `ns_sprintrrf`.
New libc functions in L (API level 21):
* <android/dlext.h>.
* <android/set_abort_message.h>.
* <arpa/inet.h> `inet_lnaof`, `inet_netof`, `inet_network`, `inet_makeaddr`.
* <wctype.h> `iswblank`.
* <ctype.h> `isalnum_l`, `isalpha_l`, `isblank_l`, `icntrl_l`, `isdigit_l`, `isgraph_l`, `islower_l`, `isprint_l`, `ispunct_l`, `isspace_l`, `isupper_l`, `isxdigit_l`, `_tolower`, `tolower_l`, `_toupper`, `toupper_l`.
* <fcntl.h> `fallocate`, `posix_fadvise`, `posix_fallocate`, `splice`, `tee`, `vmsplice`.
* <inttypes.h> `wcstoimax`, `wcstoumax`.
* <link.h> `dl_iterate_phdr`.
* <mntent.h> `setmntent`, `endmntent`, `getmntent_r`.
* <poll.h> `ppoll`.
* <pthread.h> `pthread_condattr_getclock`, `pthread_condattr_setclock`, `pthread_mutex_timedlock`, `pthread_gettid_np`.
* <sched.h> `setns`.
* <search.h> `insque`, `remque`, `lfind`, `lsearch`, `twalk`.
* <stdio.h> `dprintf`, `vdprintf`.
* <stdlib.h> `initstate`, `setstate`, `getprogname`/`setprogname`, `atof`/`strtof`, `at_quick_exit`/`_Exit`/`quick_exit`, `grantpt`, `mbtowc`/`wctomb`, `posix_openpt`, `rand_r`/`rand`/`random`/`srand`/`srandom`, `strtold_l`/`strtoll_l`/`strtoull_l`.
* <string.h> `strcoll_l`/`strxfrm_l`, `stpcpy`/`stpncpy`.
* <sys/resource.h> `prlimit`.
* <sys/socket.h> `accept4`, `sendmmsg`.
* <sys/stat.h> `mkfifo`/`mknodat`.
* <time.h> `strftime_l`.
* <unistd.h> `dup3`, `execvpe`, `getpagesize`, `linkat`/`symlinkat`/`readlinkat`, `truncate`.
* <wchar.h> `wcstof`, `vfwscanf`/`vswscanf`/`vwscanf`, `wcstold_l`/`wcstoll`/`wcstoll_l`/`wcstoull`/`wcstoull_l`, `mbsnrtowcs`/`wcsnrtombs`, `wcscoll_l`/`wcsxfrm_l`.
* <wctype.h> `iswalnum_l`/`iswalpha_l`/`iswblank_l`/`iswcntrl_l`/`iswctype_l`/`iswdigit_l`/`iswgraph_l`/`iswlower_l`/`iswprint_l`/`iswpunct_l`/`iswspace_l`/`iswupper_l`/`iswxdigit_l`, `wctype_l`, `towlower_l`/`towupper_l`.
* all of <fts.h>.
* all of <locale.h>.
* all of <sys/epoll.h>.
* all of <sys/fsuid.h>.
* all of <sys/inotify.h>.
* all of <uchar.h>.
New libc functions in K (API level 19):
* <inttypes.h> `imaxabs`, `imaxdiv`.
* <stdlib.h> `abs`, `labs`, `llabs`.
* <sys/stat.h> `futimens`.
* all of <sys/statvfs.h>.
* all of <sys/swap.h>.
* all of <sys/timerfd.h>.
New libc functions in J-MR2 (API level 18):
* <stdio.h> `getdelim` and `getline`.
* <sys/auxv.h> `getauxval`.
* <sys/signalfd.h> `signalfd`.
New libc functions in J-MR1 (API level 17):
* <ftw.h>.
* <signal.h> `psiginfo` and `psignal`.
* `getsid`, `malloc_usable_size`, `mlockall`/`munlockall`, `posix_memalign`, `unshare`.
New libc functions in J (API level 16):
* the <search.h> tree functions `tdelete`, `tdestroy`, `tfind`, and `tsearch`.
* `faccessat`, `readahead`, `tgkill`.
* all of <sys/xattr.h>.
libc function count over time:
G 803, H 825, I 826, J 846, J-MR1 873, J-MR2 881, K 896, L 1116, M 1181, N 1226, O 1278
@ -112,7 +184,19 @@ Current libm symbols: https://android.googlesource.com/platform/bionic/+/master/
0 remaining missing POSIX libm functions.
19 new libm functions in O: complex trig/exp/log functions.
New libm functions in O (API level 26):
* <complex.h> `clog`/`clogf`, `cpow`/`cpowf` functions.
New libm functions in M (API level 23):
* <complex.h> `cabs`, `carg`, `cimag`, `cacos`, `cacosh`, `casin`, `casinh`, `catan`, `catanh`, `ccos`, `ccosh`, `cexp`, `conj`, `cproj`, `csin`, `csinh`, `csqrt`, `ctan`, `ctanh`, `creal`, `cabsf`, `cargf`, `cimagf`, `cacosf`, `cacoshf`, `casinf`, `casinhf`, `catanf`, `catanhf`, `ccosf`, `ccoshf`, `cexpf`, `conjf`, `cprojf`, `csinf`, `csinhf`, `csqrtf`, `ctanf`, `ctanhf`, `crealf`, `cabsl`, `cprojl`, `csqrtl`.
* <math.h> `lgammal_r`.
New libm functions in L (API level 21):
* <complex.h> `cabsl`, `cprojl`, `csqrtl`.
* <math.h> `isinf`, `significandl`.
New libm functions in J-MR2 (API level 18):
* <math.h> `log2`, `log2f`.
libm function count over time:
G 158, J-MR2 164, L 220, M 265, O 284