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This automatically-generated patch converts 703 function definitions
in glibc from old-style K&R to prototype-style.
This conversion is deliberately simplistic, excluding any tricky cases
as even a patch covering only simple cases is still very large.
Currently excluded are: sysdeps files (to improve test coverage for
the initial patch); files containing assertions (to avoid line number
changes so that generated libraries can be compared); any cases where
the generated function declaration would involve lines over 79
characters and so need to be wrapped; any cases with array parameters
or other cases where parameter declarators don't end with the
parameter name; any other cases that my script didn't parse.
I didn't try to make the ChangeLog generation indicate when function
definitions are conditional; it just lists the functions changed
without regard to that.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
* crypt/cert.c (good_bye): Convert to prototype-style function
definition.
(get8): Likewise.
(put8): Likewise.
* crypt/crypt-entry.c (crypt): Likewise.
(__fcrypt): Likewise.
* crypt/crypt_util.c (_ufc_prbits): Likewise.
(_ufc_set_bits): Likewise.
(_ufc_clearmem): Likewise.
(__init_des_r): Likewise.
(shuffle_sb): Likewise.
(shuffle_sb): Likewise.
(_ufc_setup_salt_r): Likewise.
(_ufc_mk_keytab_r): Likewise.
(_ufc_dofinalperm_r): Likewise.
(encrypt): Likewise.
(__setkey_r): Likewise.
(setkey): Likewise.
* crypt/md5.c (md5_init_ctx): Likewise.
(md5_read_ctx): Likewise.
(md5_finish_ctx): Likewise.
(md5_stream): Likewise.
(md5_buffer): Likewise.
(md5_process_bytes): Likewise.
* crypt/sha256.c (__sha256_init_ctx): Likewise.
(__sha256_finish_ctx): Likewise.
(__sha256_process_bytes): Likewise.
* crypt/sha512.c (__sha512_init_ctx): Likewise.
(__sha512_finish_ctx): Likewise.
(__sha512_process_bytes): Likewise.
* ctype/isctype.c (__isctype): Likewise.
* debug/backtrace.c (__backtrace): Likewise.
* debug/backtracesymsfd.c (__backtrace_symbols_fd): Likewise.
* debug/fgets_chk.c (__fgets_chk): Likewise.
* debug/fgets_u_chk.c (__fgets_unlocked_chk): Likewise.
* debug/memcpy_chk.c (__memcpy_chk): Likewise.
* debug/memmove_chk.c (MEMMOVE_CHK): Likewise.
* debug/mempcpy_chk.c (__mempcpy_chk): Likewise.
* debug/memset_chk.c (__memset_chk): Likewise.
* debug/strcat_chk.c (__strcat_chk): Likewise.
* debug/strncat_chk.c (__strncat_chk): Likewise.
* debug/strncpy_chk.c (__strncpy_chk): Likewise.
* debug/vsprintf_chk.c (_IO_str_chk_overflow): Likewise.
* dirent/dirfd.c (dirfd): Likewise.
* dirent/getdents.c (__getdirentries): Likewise.
* dirent/getdents64.c (getdirentries64): Likewise.
* dirent/rewinddir.c (__rewinddir): Likewise.
* dirent/seekdir.c (seekdir): Likewise.
* dirent/telldir.c (telldir): Likewise.
* elf/sln.c (makesymlinks): Likewise.
(makesymlink): Likewise.
* gmon/gmon.c (__moncontrol): Likewise.
(__monstartup): Likewise.
(write_hist): Likewise.
(write_call_graph): Likewise.
(write_bb_counts): Likewise.
* grp/setgroups.c (setgroups): Likewise.
* inet/inet_lnaof.c (inet_lnaof): Likewise.
* inet/inet_net.c (inet_network): Likewise.
* inet/inet_netof.c (inet_netof): Likewise.
* inet/rcmd.c (rresvport_af): Likewise.
(rresvport): Likewise.
* io/access.c (__access): Likewise.
* io/chdir.c (__chdir): Likewise.
* io/chmod.c (__chmod): Likewise.
* io/chown.c (__chown): Likewise.
* io/close.c (__close): Likewise.
* io/creat.c (creat): Likewise.
* io/creat64.c (creat64): Likewise.
* io/dup.c (__dup): Likewise.
* io/dup2.c (__dup2): Likewise.
* io/dup3.c (__dup3): Likewise.
* io/euidaccess.c (__euidaccess): Likewise.
* io/faccessat.c (faccessat): Likewise.
* io/fchmod.c (__fchmod): Likewise.
* io/fchmodat.c (fchmodat): Likewise.
* io/fchown.c (__fchown): Likewise.
* io/fchownat.c (fchownat): Likewise.
* io/fcntl.c (__fcntl): Likewise.
* io/flock.c (__flock): Likewise.
* io/fts.c (fts_load): Likewise.
(fts_close): Likewise.
(fts_read): Likewise.
(fts_set): Likewise.
(fts_children): Likewise.
(fts_build): Likewise.
(fts_stat): Likewise.
(fts_sort): Likewise.
(fts_alloc): Likewise.
(fts_lfree): Likewise.
(fts_palloc): Likewise.
(fts_padjust): Likewise.
(fts_maxarglen): Likewise.
(fts_safe_changedir): Likewise.
* io/getwd.c (getwd): Likewise.
* io/isatty.c (__isatty): Likewise.
* io/lchown.c (__lchown): Likewise.
* io/link.c (__link): Likewise.
* io/linkat.c (linkat): Likewise.
* io/lseek.c (__libc_lseek): Likewise.
* io/mkdir.c (__mkdir): Likewise.
* io/mkdirat.c (mkdirat): Likewise.
* io/mkfifo.c (mkfifo): Likewise.
* io/mkfifoat.c (mkfifoat): Likewise.
* io/open.c (__libc_open): Likewise.
* io/open64.c (__libc_open64): Likewise.
* io/readlink.c (__readlink): Likewise.
* io/readlinkat.c (readlinkat): Likewise.
* io/rmdir.c (__rmdir): Likewise.
* io/symlink.c (__symlink): Likewise.
* io/symlinkat.c (symlinkat): Likewise.
* io/ttyname.c (ttyname): Likewise.
* io/ttyname_r.c (__ttyname_r): Likewise.
* io/umask.c (__umask): Likewise.
* io/unlink.c (__unlink): Likewise.
* io/unlinkat.c (unlinkat): Likewise.
* io/utime.c (utime): Likewise.
* libio/clearerr.c (clearerr): Likewise.
* libio/clearerr_u.c (clearerr_unlocked): Likewise.
* libio/feof.c (_IO_feof): Likewise.
* libio/feof_u.c (feof_unlocked): Likewise.
* libio/ferror.c (_IO_ferror): Likewise.
* libio/ferror_u.c (ferror_unlocked): Likewise.
* libio/filedoalloc.c (_IO_file_doallocate): Likewise.
* libio/fileno.c (__fileno): Likewise.
* libio/fputc.c (fputc): Likewise.
* libio/fputc_u.c (fputc_unlocked): Likewise.
* libio/fputwc.c (fputwc): Likewise.
* libio/fputwc_u.c (fputwc_unlocked): Likewise.
* libio/freopen.c (freopen): Likewise.
* libio/freopen64.c (freopen64): Likewise.
* libio/fseek.c (fseek): Likewise.
* libio/fseeko.c (fseeko): Likewise.
* libio/fseeko64.c (fseeko64): Likewise.
* libio/ftello.c (__ftello): Likewise.
* libio/ftello64.c (ftello64): Likewise.
* libio/fwide.c (fwide): Likewise.
* libio/genops.c (_IO_un_link): Likewise.
(_IO_link_in): Likewise.
(_IO_least_marker): Likewise.
(_IO_switch_to_main_get_area): Likewise.
(_IO_switch_to_backup_area): Likewise.
(_IO_switch_to_get_mode): Likewise.
(_IO_free_backup_area): Likewise.
(_IO_switch_to_put_mode): Likewise.
(__overflow): Likewise.
(__underflow): Likewise.
(__uflow): Likewise.
(_IO_setb): Likewise.
(_IO_doallocbuf): Likewise.
(_IO_default_underflow): Likewise.
(_IO_default_uflow): Likewise.
(_IO_default_xsputn): Likewise.
(_IO_sgetn): Likewise.
(_IO_default_xsgetn): Likewise.
(_IO_sync): Likewise.
(_IO_default_setbuf): Likewise.
(_IO_default_seekpos): Likewise.
(_IO_default_doallocate): Likewise.
(_IO_init): Likewise.
(_IO_old_init): Likewise.
(_IO_default_sync): Likewise.
(_IO_default_finish): Likewise.
(_IO_default_seekoff): Likewise.
(_IO_sputbackc): Likewise.
(_IO_sungetc): Likewise.
(_IO_set_column): Likewise.
(_IO_set_column): Likewise.
(_IO_adjust_column): Likewise.
(_IO_get_column): Likewise.
(_IO_init_marker): Likewise.
(_IO_remove_marker): Likewise.
(_IO_marker_difference): Likewise.
(_IO_marker_delta): Likewise.
(_IO_seekmark): Likewise.
(_IO_unsave_markers): Likewise.
(_IO_nobackup_pbackfail): Likewise.
(_IO_default_pbackfail): Likewise.
(_IO_default_seek): Likewise.
(_IO_default_stat): Likewise.
(_IO_default_read): Likewise.
(_IO_default_write): Likewise.
(_IO_default_showmanyc): Likewise.
(_IO_default_imbue): Likewise.
(_IO_iter_next): Likewise.
(_IO_iter_file): Likewise.
* libio/getc.c (_IO_getc): Likewise.
* libio/getwc.c (_IO_getwc): Likewise.
* libio/iofclose.c (_IO_new_fclose): Likewise.
* libio/iofdopen.c (_IO_new_fdopen): Likewise.
* libio/iofflush.c (_IO_fflush): Likewise.
* libio/iofflush_u.c (__fflush_unlocked): Likewise.
* libio/iofgetpos.c (_IO_new_fgetpos): Likewise.
* libio/iofgetpos64.c (_IO_new_fgetpos64): Likewise.
* libio/iofgets.c (_IO_fgets): Likewise.
* libio/iofgets_u.c (__fgets_unlocked): Likewise.
* libio/iofgetws.c (fgetws): Likewise.
* libio/iofgetws_u.c (fgetws_unlocked): Likewise.
* libio/iofopen64.c (_IO_fopen64): Likewise.
* libio/iofopncook.c (_IO_cookie_read): Likewise.
(_IO_cookie_write): Likewise.
(_IO_cookie_seek): Likewise.
(_IO_cookie_close): Likewise.
(_IO_cookie_seekoff): Likewise.
(_IO_old_cookie_seek): Likewise.
* libio/iofputs.c (_IO_fputs): Likewise.
* libio/iofputs_u.c (__fputs_unlocked): Likewise.
* libio/iofputws.c (fputws): Likewise.
* libio/iofputws_u.c (fputws_unlocked): Likewise.
* libio/iofread.c (_IO_fread): Likewise.
* libio/iofread_u.c (__fread_unlocked): Likewise.
* libio/iofsetpos.c (_IO_new_fsetpos): Likewise.
* libio/iofsetpos64.c (_IO_new_fsetpos64): Likewise.
* libio/ioftell.c (_IO_ftell): Likewise.
* libio/iofwrite.c (_IO_fwrite): Likewise.
* libio/iogetdelim.c (_IO_getdelim): Likewise.
* libio/iogets.c (_IO_gets): Likewise.
* libio/iopadn.c (_IO_padn): Likewise.
* libio/iopopen.c (_IO_new_proc_open): Likewise.
(_IO_new_popen): Likewise.
(_IO_new_proc_close): Likewise.
* libio/ioputs.c (_IO_puts): Likewise.
* libio/ioseekoff.c (_IO_seekoff_unlocked): Likewise.
(_IO_seekoff): Likewise.
* libio/ioseekpos.c (_IO_seekpos_unlocked): Likewise.
(_IO_seekpos): Likewise.
* libio/iosetbuffer.c (_IO_setbuffer): Likewise.
* libio/iosetvbuf.c (_IO_setvbuf): Likewise.
* libio/ioungetc.c (_IO_ungetc): Likewise.
* libio/ioungetwc.c (ungetwc): Likewise.
* libio/iovdprintf.c (_IO_vdprintf): Likewise.
* libio/iovsscanf.c (_IO_vsscanf): Likewise.
* libio/iowpadn.c (_IO_wpadn): Likewise.
* libio/libc_fatal.c (__libc_fatal): Likewise.
* libio/memstream.c (__open_memstream): Likewise.
(_IO_mem_sync): Likewise.
(_IO_mem_finish): Likewise.
* libio/oldfileops.c (_IO_old_file_init): Likewise.
(_IO_old_file_close_it): Likewise.
(_IO_old_file_finish): Likewise.
(_IO_old_file_fopen): Likewise.
(_IO_old_file_attach): Likewise.
(_IO_old_file_setbuf): Likewise.
(_IO_old_do_write): Likewise.
(old_do_write): Likewise.
(_IO_old_file_underflow): Likewise.
(_IO_old_file_overflow): Likewise.
(_IO_old_file_sync): Likewise.
(_IO_old_file_seekoff): Likewise.
(_IO_old_file_write): Likewise.
(_IO_old_file_xsputn): Likewise.
* libio/oldiofclose.c (_IO_old_fclose): Likewise.
* libio/oldiofdopen.c (_IO_old_fdopen): Likewise.
* libio/oldiofgetpos.c (_IO_old_fgetpos): Likewise.
* libio/oldiofgetpos64.c (_IO_old_fgetpos64): Likewise.
* libio/oldiofopen.c (_IO_old_fopen): Likewise.
* libio/oldiofsetpos.c (_IO_old_fsetpos): Likewise.
* libio/oldiofsetpos64.c (_IO_old_fsetpos64): Likewise.
* libio/oldiopopen.c (_IO_old_proc_open): Likewise.
(_IO_old_popen): Likewise.
(_IO_old_proc_close): Likewise.
* libio/oldpclose.c (__old_pclose): Likewise.
* libio/pclose.c (__new_pclose): Likewise.
* libio/peekc.c (_IO_peekc_locked): Likewise.
* libio/putc.c (_IO_putc): Likewise.
* libio/putc_u.c (putc_unlocked): Likewise.
* libio/putchar.c (putchar): Likewise.
* libio/putchar_u.c (putchar_unlocked): Likewise.
* libio/putwc.c (putwc): Likewise.
* libio/putwc_u.c (putwc_unlocked): Likewise.
* libio/putwchar.c (putwchar): Likewise.
* libio/putwchar_u.c (putwchar_unlocked): Likewise.
* libio/rewind.c (rewind): Likewise.
* libio/setbuf.c (setbuf): Likewise.
* libio/setlinebuf.c (setlinebuf): Likewise.
* libio/vasprintf.c (_IO_vasprintf): Likewise.
* libio/vscanf.c (_IO_vscanf): Likewise.
* libio/vsnprintf.c (_IO_strn_overflow): Likewise.
* libio/vswprintf.c (_IO_wstrn_overflow): Likewise.
* libio/wfiledoalloc.c (_IO_wfile_doallocate): Likewise.
* libio/wgenops.c (_IO_least_wmarker): Likewise.
(_IO_switch_to_main_wget_area): Likewise.
(_IO_switch_to_wbackup_area): Likewise.
(_IO_wsetb): Likewise.
(_IO_wdefault_pbackfail): Likewise.
(_IO_wdefault_finish): Likewise.
(_IO_wdefault_uflow): Likewise.
(__woverflow): Likewise.
(__wuflow): Likewise.
(__wunderflow): Likewise.
(_IO_wdefault_xsputn): Likewise.
(_IO_wdefault_xsgetn): Likewise.
(_IO_wdoallocbuf): Likewise.
(_IO_wdefault_doallocate): Likewise.
(_IO_switch_to_wget_mode): Likewise.
(_IO_free_wbackup_area): Likewise.
(_IO_switch_to_wput_mode): Likewise.
(_IO_sputbackwc): Likewise.
(_IO_sungetwc): Likewise.
(_IO_adjust_wcolumn): Likewise.
(_IO_init_wmarker): Likewise.
(_IO_wmarker_delta): Likewise.
(_IO_seekwmark): Likewise.
(_IO_unsave_wmarkers): Likewise.
* libio/wmemstream.c (open_wmemstream): Likewise.
(_IO_wmem_sync): Likewise.
(_IO_wmem_finish): Likewise.
* locale/nl_langinfo.c (nl_langinfo): Likewise.
* locale/nl_langinfo_l.c (__nl_langinfo_l): Likewise.
* locale/programs/simple-hash.c (init_hash): Likewise.
(delete_hash): Likewise.
(insert_entry): Likewise.
(set_entry): Likewise.
(next_prime): Likewise.
(is_prime): Likewise.
* locale/programs/xmalloc.c (fixup_null_alloc): Likewise.
(xmalloc): Likewise.
(xrealloc): Likewise.
* locale/programs/xstrdup.c (xstrdup): Likewise.
* localedata/collate-test.c (xstrcoll): Likewise.
* localedata/xfrm-test.c (xstrcmp): Likewise.
* login/getlogin_r.c (__getlogin_r): Likewise.
* login/getpt.c (__posix_openpt): Likewise.
* login/login_tty.c (login_tty): Likewise.
* login/setlogin.c (setlogin): Likewise.
* mach/msg-destroy.c (__mach_msg_destroy): Likewise.
(mach_msg_destroy_port): Likewise.
(mach_msg_destroy_memory): Likewise.
* malloc/mcheck.c (flood): Likewise.
* misc/acct.c (acct): Likewise.
* misc/brk.c (__brk): Likewise.
* misc/chflags.c (chflags): Likewise.
* misc/chroot.c (chroot): Likewise.
* misc/fchflags.c (fchflags): Likewise.
* misc/fstab.c (getfsspec): Likewise.
(getfsfile): Likewise.
* misc/fsync.c (fsync): Likewise.
* misc/ftruncate.c (__ftruncate): Likewise.
* misc/ftruncate64.c (__ftruncate64): Likewise.
* misc/getdomain.c (getdomainname): Likewise.
(getdomainname): Likewise.
* misc/gethostname.c (__gethostname): Likewise.
* misc/getpass.c (getpass): Likewise.
* misc/getttyent.c (skip): Likewise.
(value): Likewise.
* misc/gtty.c (gtty): Likewise.
* misc/hsearch.c (hsearch): Likewise.
(hcreate): Likewise.
* misc/hsearch_r.c (__hcreate_r): Likewise.
(__hdestroy_r): Likewise.
* misc/ioctl.c (__ioctl): Likewise.
* misc/mkdtemp.c (mkdtemp): Likewise.
* misc/mkostemp.c (mkostemp): Likewise.
* misc/mkostemp64.c (mkostemp64): Likewise.
* misc/mkostemps.c (mkostemps): Likewise.
* misc/mkostemps64.c (mkostemps64): Likewise.
* misc/mkstemp.c (mkstemp): Likewise.
* misc/mkstemp64.c (mkstemp64): Likewise.
* misc/mkstemps.c (mkstemps): Likewise.
* misc/mkstemps64.c (mkstemps64): Likewise.
* misc/mktemp.c (__mktemp): Likewise.
* misc/preadv.c (preadv): Likewise.
* misc/preadv64.c (preadv64): Likewise.
* misc/pwritev.c (pwritev): Likewise.
* misc/pwritev64.c (pwritev64): Likewise.
* misc/readv.c (__readv): Likewise.
* misc/revoke.c (revoke): Likewise.
* misc/setdomain.c (setdomainname): Likewise.
* misc/setegid.c (setegid): Likewise.
* misc/seteuid.c (seteuid): Likewise.
* misc/sethostid.c (sethostid): Likewise.
* misc/sethostname.c (sethostname): Likewise.
* misc/setregid.c (__setregid): Likewise.
* misc/setreuid.c (__setreuid): Likewise.
* misc/sstk.c (sstk): Likewise.
* misc/stty.c (stty): Likewise.
* misc/syscall.c (syscall): Likewise.
* misc/syslog.c (setlogmask): Likewise.
* misc/truncate.c (__truncate): Likewise.
* misc/truncate64.c (truncate64): Likewise.
* misc/ualarm.c (ualarm): Likewise.
* misc/usleep.c (usleep): Likewise.
* misc/ustat.c (ustat): Likewise.
* misc/writev.c (__writev): Likewise.
* nptl/cleanup_compat.c (_pthread_cleanup_pop): Likewise.
* nptl/old_pthread_cond_broadcast.c
(__pthread_cond_broadcast_2_0): Likewise.
* nptl/old_pthread_cond_destroy.c (__pthread_cond_destroy_2_0):
Likewise.
* nptl/old_pthread_cond_signal.c (__pthread_cond_signal_2_0):
Likewise.
* nptl/old_pthread_cond_wait.c (__pthread_cond_wait_2_0):
Likewise.
* nptl/pt-raise.c (raise): Likewise.
* nptl/pthread_barrier_destroy.c (pthread_barrier_destroy):
Likewise.
* nptl/pthread_barrier_wait.c (__pthread_barrier_wait): Likewise.
* nptl/pthread_barrierattr_destroy.c
(pthread_barrierattr_destroy): Likewise.
* nptl/pthread_barrierattr_init.c (pthread_barrierattr_init):
Likewise.
* nptl/pthread_barrierattr_setpshared.c
(pthread_barrierattr_setpshared): Likewise.
* nptl/pthread_cond_broadcast.c (__pthread_cond_broadcast):
Likewise.
* nptl/pthread_cond_destroy.c (__pthread_cond_destroy): Likewise.
* nptl/pthread_cond_init.c (__pthread_cond_init): Likewise.
* nptl/pthread_cond_signal.c (__pthread_cond_signal): Likewise.
* nptl/pthread_condattr_destroy.c (__pthread_condattr_destroy):
Likewise.
* nptl/pthread_condattr_getclock.c (pthread_condattr_getclock):
Likewise.
* nptl/pthread_condattr_getpshared.c
(pthread_condattr_getpshared): Likewise.
* nptl/pthread_condattr_init.c (__pthread_condattr_init):
Likewise.
* nptl/pthread_condattr_setpshared.c
(pthread_condattr_setpshared): Likewise.
* nptl/pthread_detach.c (pthread_detach): Likewise.
* nptl/pthread_equal.c (__pthread_equal): Likewise.
* nptl/pthread_getcpuclockid.c (pthread_getcpuclockid): Likewise.
* nptl/pthread_getspecific.c (__pthread_getspecific): Likewise.
* nptl/pthread_key_delete.c (pthread_key_delete): Likewise.
* nptl/pthread_mutex_consistent.c (pthread_mutex_consistent):
Likewise.
* nptl/pthread_mutex_destroy.c (__pthread_mutex_destroy):
Likewise.
* nptl/pthread_mutex_getprioceiling.c
(pthread_mutex_getprioceiling): Likewise.
* nptl/pthread_mutexattr_destroy.c (__pthread_mutexattr_destroy):
Likewise.
* nptl/pthread_mutexattr_getprotocol.c
(pthread_mutexattr_getprotocol): Likewise.
* nptl/pthread_mutexattr_getpshared.c
(pthread_mutexattr_getpshared): Likewise.
* nptl/pthread_mutexattr_getrobust.c
(pthread_mutexattr_getrobust): Likewise.
* nptl/pthread_mutexattr_gettype.c (pthread_mutexattr_gettype):
Likewise.
* nptl/pthread_mutexattr_init.c (__pthread_mutexattr_init):
Likewise.
* nptl/pthread_mutexattr_setprioceiling.c
(pthread_mutexattr_setprioceiling): Likewise.
* nptl/pthread_mutexattr_setprotocol.c
(pthread_mutexattr_setprotocol): Likewise.
* nptl/pthread_mutexattr_setpshared.c
(pthread_mutexattr_setpshared): Likewise.
* nptl/pthread_mutexattr_setrobust.c
(pthread_mutexattr_setrobust): Likewise.
* nptl/pthread_mutexattr_settype.c (__pthread_mutexattr_settype):
Likewise.
* nptl/pthread_rwlock_destroy.c (__pthread_rwlock_destroy):
Likewise.
* nptl/pthread_rwlockattr_destroy.c (pthread_rwlockattr_destroy):
Likewise.
* nptl/pthread_rwlockattr_getkind_np.c
(pthread_rwlockattr_getkind_np): Likewise.
* nptl/pthread_rwlockattr_getpshared.c
(pthread_rwlockattr_getpshared): Likewise.
* nptl/pthread_rwlockattr_init.c (pthread_rwlockattr_init):
Likewise.
* nptl/pthread_rwlockattr_setkind_np.c
(pthread_rwlockattr_setkind_np): Likewise.
* nptl/pthread_rwlockattr_setpshared.c
(pthread_rwlockattr_setpshared): Likewise.
* nptl/pthread_setcancelstate.c (__pthread_setcancelstate):
Likewise.
* nptl/pthread_setcanceltype.c (__pthread_setcanceltype):
Likewise.
* nptl/pthread_setconcurrency.c (pthread_setconcurrency):
Likewise.
* nptl/pthread_setschedprio.c (pthread_setschedprio): Likewise.
* nptl/pthread_setspecific.c (__pthread_setspecific): Likewise.
* nptl/pthread_spin_destroy.c (pthread_spin_destroy): Likewise.
* nptl/pthread_tryjoin.c (pthread_tryjoin_np): Likewise.
* nptl/sem_close.c (sem_close): Likewise.
* nptl/sem_destroy.c (__new_sem_destroy): Likewise.
* nptl/sem_init.c (__old_sem_init): Likewise.
* nptl/sigaction.c (__sigaction): Likewise.
* nptl/unregister-atfork.c (__unregister_atfork): Likewise.
* posix/_exit.c (_exit): Likewise.
* posix/alarm.c (alarm): Likewise.
* posix/confstr.c (confstr): Likewise.
* posix/fpathconf.c (__fpathconf): Likewise.
* posix/getgroups.c (__getgroups): Likewise.
* posix/getpgid.c (__getpgid): Likewise.
* posix/group_member.c (__group_member): Likewise.
* posix/pathconf.c (__pathconf): Likewise.
* posix/sched_getaffinity.c (sched_getaffinity): Likewise.
* posix/sched_setaffinity.c (sched_setaffinity): Likewise.
* posix/setgid.c (__setgid): Likewise.
* posix/setpgid.c (__setpgid): Likewise.
* posix/setuid.c (__setuid): Likewise.
* posix/sleep.c (__sleep): Likewise.
* posix/sysconf.c (__sysconf): Likewise.
* posix/times.c (__times): Likewise.
* posix/uname.c (__uname): Likewise.
* posix/waitid.c (__waitid): Likewise.
* pwd/getpw.c (__getpw): Likewise.
* resolv/base64.c (b64_pton): Likewise.
* resolv/gai_sigqueue.c (__gai_sigqueue): Likewise.
* resolv/gethnamaddr.c (Dprintf): Likewise.
(gethostbyname): Likewise.
(gethostbyname2): Likewise.
(gethostbyaddr): Likewise.
(_sethtent): Likewise.
(_gethtbyname): Likewise.
(_gethtbyname2): Likewise.
(_gethtbyaddr): Likewise.
(map_v4v6_address): Likewise.
(map_v4v6_hostent): Likewise.
(addrsort): Likewise.
(ht_sethostent): Likewise.
(ht_gethostbyname): Likewise.
(ht_gethostbyaddr): Likewise.
* resolv/inet_net_ntop.c (inet_net_ntop): Likewise.
(inet_net_ntop_ipv4): Likewise.
* resolv/inet_neta.c (inet_neta): Likewise.
* resolv/inet_ntop.c (inet_ntop): Likewise.
(inet_ntop4): Likewise.
(inet_ntop6): Likewise.
* resolv/inet_pton.c (__inet_pton): Likewise.
(inet_pton4): Likewise.
(inet_pton6): Likewise.
* resolv/res_debug.c (loc_aton): Likewise.
(loc_ntoa): Likewise.
* resource/getpriority.c (__getpriority): Likewise.
* resource/getrusage.c (__getrusage): Likewise.
* resource/nice.c (nice): Likewise.
* resource/setpriority.c (__setpriority): Likewise.
* resource/setrlimit64.c (setrlimit64): Likewise.
* resource/vlimit.c (vlimit): Likewise.
* resource/vtimes.c (vtimes): Likewise.
* rt/aio_error.c (aio_error): Likewise.
* rt/aio_return.c (aio_return): Likewise.
* rt/aio_sigqueue.c (__aio_sigqueue): Likewise.
* signal/kill.c (__kill): Likewise.
* signal/killpg.c (killpg): Likewise.
* signal/raise.c (raise): Likewise.
* signal/sigaction.c (__sigaction): Likewise.
* signal/sigaddset.c (sigaddset): Likewise.
* signal/sigaltstack.c (sigaltstack): Likewise.
* signal/sigandset.c (sigandset): Likewise.
* signal/sigblock.c (__sigblock): Likewise.
* signal/sigdelset.c (sigdelset): Likewise.
* signal/sigempty.c (sigemptyset): Likewise.
* signal/sigfillset.c (sigfillset): Likewise.
* signal/sighold.c (sighold): Likewise.
* signal/sigignore.c (sigignore): Likewise.
* signal/sigintr.c (siginterrupt): Likewise.
* signal/sigisempty.c (sigisemptyset): Likewise.
* signal/sigismem.c (sigismember): Likewise.
* signal/signal.c (signal): Likewise.
* signal/sigorset.c (sigorset): Likewise.
* signal/sigpause.c (__sigpause): Likewise.
* signal/sigpending.c (sigpending): Likewise.
* signal/sigprocmask.c (__sigprocmask): Likewise.
* signal/sigrelse.c (sigrelse): Likewise.
* signal/sigreturn.c (__sigreturn): Likewise.
* signal/sigset.c (sigset): Likewise.
* signal/sigsetmask.c (__sigsetmask): Likewise.
* signal/sigstack.c (sigstack): Likewise.
* signal/sigsuspend.c (__sigsuspend): Likewise.
* signal/sigvec.c (sigvec_wrapper_handler): Likewise.
* signal/sysv_signal.c (__sysv_signal): Likewise.
* socket/accept.c (accept): Likewise.
* socket/accept4.c (__libc_accept4): Likewise.
* socket/bind.c (__bind): Likewise.
* socket/connect.c (__connect): Likewise.
* socket/getpeername.c (getpeername): Likewise.
* socket/getsockname.c (__getsockname): Likewise.
* socket/getsockopt.c (getsockopt): Likewise.
* socket/listen.c (__listen): Likewise.
* socket/recv.c (__recv): Likewise.
* socket/recvmsg.c (__recvmsg): Likewise.
* socket/send.c (__send): Likewise.
* socket/sendmsg.c (__sendmsg): Likewise.
* socket/shutdown.c (shutdown): Likewise.
* socket/sockatmark.c (sockatmark): Likewise.
* socket/socket.c (__socket): Likewise.
* stdio-common/ctermid.c (ctermid): Likewise.
* stdio-common/cuserid.c (cuserid): Likewise.
* stdio-common/printf-prs.c (parse_printf_format): Likewise.
* stdio-common/remove.c (remove): Likewise.
* stdio-common/rename.c (rename): Likewise.
* stdio-common/renameat.c (renameat): Likewise.
* stdio-common/tempname.c (__gen_tempname): Likewise.
* stdio-common/xbug.c (InitBuffer): Likewise.
(AppendToBuffer): Likewise.
(ReadFile): Likewise.
* stdlib/a64l.c (a64l): Likewise.
* stdlib/drand48_r.c (drand48_r): Likewise.
* stdlib/getcontext.c (getcontext): Likewise.
* stdlib/getenv.c (getenv): Likewise.
* stdlib/l64a.c (l64a): Likewise.
* stdlib/llabs.c (llabs): Likewise.
* stdlib/lldiv.c (lldiv): Likewise.
* stdlib/lrand48_r.c (lrand48_r): Likewise.
* stdlib/mrand48_r.c (mrand48_r): Likewise.
* stdlib/putenv.c (putenv): Likewise.
* stdlib/random.c (__srandom): Likewise.
(__initstate): Likewise.
(__setstate): Likewise.
* stdlib/random_r.c (__srandom_r): Likewise.
(__setstate_r): Likewise.
(__random_r): Likewise.
* stdlib/secure-getenv.c (__libc_secure_getenv): Likewise.
* stdlib/setcontext.c (setcontext): Likewise.
* stdlib/setenv.c (setenv): Likewise.
(unsetenv): Likewise.
* stdlib/srand48.c (srand48): Likewise.
* stdlib/srand48_r.c (__srand48_r): Likewise.
* stdlib/swapcontext.c (swapcontext): Likewise.
* stdlib/system.c (__libc_system): Likewise.
* stdlib/tst-strtod.c (expand): Likewise.
* stdlib/tst-strtol.c (expand): Likewise.
* stdlib/tst-strtoll.c (expand): Likewise.
* streams/fattach.c (fattach): Likewise.
* streams/fdetach.c (fdetach): Likewise.
* streams/getmsg.c (getmsg): Likewise.
* streams/isastream.c (isastream): Likewise.
* string/ffs.c (__ffs): Likewise.
* string/ffsll.c (ffsll): Likewise.
* string/memcmp.c (memcmp_common_alignment): Likewise.
(memcmp_not_common_alignment): Likewise.
(MEMCMP): Likewise.
* string/memcpy.c (memcpy): Likewise.
* string/memmove.c (MEMMOVE): Likewise.
* string/memset.c (memset): Likewise.
* string/rawmemchr.c (RAWMEMCHR): Likewise.
* string/strchrnul.c (STRCHRNUL): Likewise.
* string/strerror.c (strerror): Likewise.
* string/strndup.c (__strndup): Likewise.
* string/strverscmp.c (__strverscmp): Likewise.
* sunrpc/clnt_raw.c (clntraw_freeres): Likewise.
* sunrpc/clnt_tcp.c (clnttcp_geterr): Likewise.
(clnttcp_freeres): Likewise.
* sunrpc/clnt_unix.c (clntunix_freeres): Likewise.
* sunrpc/pmap_prot.c (xdr_pmap): Likewise.
* sunrpc/pmap_prot2.c (xdr_pmaplist): Likewise.
* sunrpc/pmap_rmt.c (xdr_rmtcallres): Likewise.
* sunrpc/rpc_prot.c (xdr_replymsg): Likewise.
(xdr_callhdr): Likewise.
* sunrpc/rpcinfo.c (udpping): Likewise.
(tcpping): Likewise.
(pstatus): Likewise.
(pmapdump): Likewise.
(brdcst): Likewise.
(deletereg): Likewise.
(getprognum): Likewise.
(getvers): Likewise.
(get_inet_address): Likewise.
* sunrpc/svc_raw.c (svcraw_recv): Likewise.
* sunrpc/svc_udp.c (svcudp_create): Likewise.
(svcudp_stat): Likewise.
(svcudp_recv): Likewise.
(svcudp_reply): Likewise.
(svcudp_getargs): Likewise.
(svcudp_freeargs): Likewise.
(svcudp_destroy): Likewise.
* sunrpc/xdr.c (xdr_bytes): Likewise.
(xdr_netobj): Likewise.
(xdr_string): Likewise.
(xdr_wrapstring): Likewise.
* sunrpc/xdr_float.c (xdr_float): Likewise.
(xdr_double): Likewise.
* sunrpc/xdr_mem.c (xdrmem_setpos): Likewise.
* sunrpc/xdr_ref.c (xdr_pointer): Likewise.
* sysvipc/ftok.c (ftok): Likewise.
* sysvipc/msgctl.c (msgctl): Likewise.
* sysvipc/msgget.c (msgget): Likewise.
* sysvipc/msgrcv.c (msgrcv): Likewise.
* sysvipc/msgsnd.c (msgsnd): Likewise.
* sysvipc/semget.c (semget): Likewise.
* sysvipc/semop.c (semop): Likewise.
* sysvipc/shmat.c (shmat): Likewise.
* sysvipc/shmctl.c (shmctl): Likewise.
* sysvipc/shmdt.c (shmdt): Likewise.
* sysvipc/shmget.c (shmget): Likewise.
* termios/cfmakeraw.c (cfmakeraw): Likewise.
* termios/speed.c (cfgetospeed): Likewise.
(cfgetispeed): Likewise.
(cfsetospeed): Likewise.
(cfsetispeed): Likewise.
* termios/tcflow.c (tcflow): Likewise.
* termios/tcflush.c (tcflush): Likewise.
* termios/tcgetattr.c (__tcgetattr): Likewise.
* termios/tcgetpgrp.c (tcgetpgrp): Likewise.
* termios/tcgetsid.c (tcgetsid): Likewise.
* termios/tcsendbrk.c (tcsendbreak): Likewise.
* termios/tcsetpgrp.c (tcsetpgrp): Likewise.
* time/adjtime.c (__adjtime): Likewise.
* time/dysize.c (dysize): Likewise.
* time/ftime.c (ftime): Likewise.
* time/getitimer.c (__getitimer): Likewise.
* time/gettimeofday.c (__gettimeofday): Likewise.
* time/gmtime.c (__gmtime_r): Likewise.
(gmtime): Likewise.
* time/localtime.c (__localtime_r): Likewise.
(localtime): Likewise.
* time/offtime.c (__offtime): Likewise.
* time/settimeofday.c (__settimeofday): Likewise.
* time/stime.c (stime): Likewise.
* time/strftime_l.c (tm_diff): Likewise.
(iso_week_days): Likewise.
* time/strptime.c (strptime): Likewise.
* time/time.c (time): Likewise.
* time/timespec_get.c (timespec_get): Likewise.
* time/tzset.c (tzset_internal): Likewise.
(compute_change): Likewise.
(__tz_compute): Likewise.
* wcsmbs/btowc.c (__btowc): Likewise.
* wcsmbs/mbrlen.c (__mbrlen): Likewise.
* wcsmbs/mbsinit.c (__mbsinit): Likewise.
* wcsmbs/mbsrtowcs.c (__mbsrtowcs): Likewise.
* wcsmbs/wcpcpy.c (__wcpcpy): Likewise.
* wcsmbs/wcpncpy.c (__wcpncpy): Likewise.
* wcsmbs/wcscat.c (__wcscat): Likewise.
* wcsmbs/wcschrnul.c (__wcschrnul): Likewise.
* wcsmbs/wcscmp.c (WCSCMP): Likewise.
* wcsmbs/wcscpy.c (WCSCPY): Likewise.
* wcsmbs/wcscspn.c (wcscspn): Likewise.
* wcsmbs/wcsdup.c (wcsdup): Likewise.
* wcsmbs/wcslen.c (__wcslen): Likewise.
* wcsmbs/wcsncat.c (WCSNCAT): Likewise.
* wcsmbs/wcsncmp.c (WCSNCMP): Likewise.
* wcsmbs/wcsncpy.c (__wcsncpy): Likewise.
* wcsmbs/wcsnlen.c (__wcsnlen): Likewise.
* wcsmbs/wcspbrk.c (wcspbrk): Likewise.
* wcsmbs/wcsrchr.c (WCSRCHR): Likewise.
* wcsmbs/wcsspn.c (wcsspn): Likewise.
* wcsmbs/wcsstr.c (wcsstr): Likewise.
* wcsmbs/wcstok.c (wcstok): Likewise.
* wcsmbs/wctob.c (wctob): Likewise.
* wcsmbs/wmemchr.c (__wmemchr): Likewise.
* wcsmbs/wmemcmp.c (WMEMCMP): Likewise.
* wcsmbs/wmemcpy.c (__wmemcpy): Likewise.
* wcsmbs/wmemmove.c (__wmemmove): Likewise.
* wcsmbs/wmempcpy.c (__wmempcpy): Likewise.
* wcsmbs/wmemset.c (__wmemset): Likewise.
* wctype/wcfuncs.c (__towlower): Likewise.
(__towupper): Likewise.
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Tested for i386.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h
(lll_unlock_elision): Add adapt_count parameter.
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sysdeps/nptl/configure.ac has code to give errors if certain tests in
the top-level configure failed. However, all those failure conditions
also produce errors in the top-level configure, so the errors in the
NPTL configure are completely redundant; this patch removes them.
(As suggested in
<https://sourceware.org/ml/libc-alpha/2015-10/msg00510.html>, I think
the top-level tests in question can be completely removed as
unnecessary given the version tests. But even without that there is
clearly no point in duplicating code that gives an error if the test
fails.)
Tested for x86_64 (testsuite, and that installed shared libraries are
unchanged by the patch).
* sysdeps/nptl/configure.ac: Do not give errors based on the
results of top-level configure tests.
* sysdeps/nptl/configure: Regenerated.
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There is a configure test for the -Bgroup linker option whose results
aren't used anywhere. This patch removes that test.
Tested for x86_64 (testsuite, and that installed shared libraries are
unchanged by the patch).
* configure.ac (libc_cv_Bgroup): Remove configure test.
* configure: Regenerated.
* config.make.in (have-Bgroup): Remove variable.
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There is a configure test for sizeof (long double) whose results
aren't used anywhere. This patch removes that test.
Tested for x86_64 (testsuite, and that installed shared libraries are
unchanged by the patch).
* configure.ac (sizeof_long_double): Remove configure test.
* configure: Regenerated.
* config.make.in (sizeof-long-double): Remove variable.
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There is a configure test for -fexceptions. This option was added in
GCC 2.8, so the test is obsolete - and indeed plenty of code is using
-fexceptions directly. This patch removes the configure test and
makes all uses of $(exceptions) use -fexceptions directly.
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
* configure.ac (libc_cv_gcc_exceptions): Remove configure test.
* configure: Regenerated.
* sysdeps/arm/configure.ac (libc_cv_gcc_exceptions): Do not set
variable.
(exceptions): Likewise.
* sysdeps/arm/configure: Regenerated.
* config.make.in (exceptions): Remove variable.
* Makeconfig (uses-callbacks): Use -fexceptions instead of
$(exceptions).
* debug/Makefile (CFLAGS-dprintf_chk.c): Likewise.
(CFLAGS-vdprintf_chk.c): Likewise.
(CFLAGS-printf_chk.c): Likewise.
(CFLAGS-fprintf_chk.c): Likewise.
(CFLAGS-vprintf_chk.c): Likewise.
(CFLAGS-vfprintf_chk.c): Likewise.
(CFLAGS-gets_chk.c): Likewise.
(CFLAGS-fgets_chk.c): Likewise.
(CFLAGS-fgets_u_chk.c): Likewise.
(CFLAGS-fread_chk.c): Likewise.
(CFLAGS-fread_u_chk.c): Likewise.
(CFLAGS-wprintf_chk.c): Likewise.
(CFLAGS-fwprintf_chk.c): Likewise.
(CFLAGS-vwprintf_chk.c): Likewise.
(CFLAGS-vfwprintf_chk.c): Likewise.
(CFLAGS-fgetws_chk.c): Likewise.
(CFLAGS-fgetws_u_chk.c): Likewise.
* libio/Makefile (CFLAGS-fileops.c): Likewise.
(CFLAGS-fputc.c): Likewise.
(CFLAGS-fputwc.c): Likewise.
(CFLAGS-freopen64.c): Likewise.
(CFLAGS-freopen.c): Likewise.
(CFLAGS-fseek.c): Likewise.
(CFLAGS-fseeko64.c): Likewise.
(CFLAGS-fseeko.c): Likewise.
(CFLAGS-ftello64.c): Likewise.
(CFLAGS-ftello.c): Likewise.
(CFLAGS-fwide.c): Likewise.
(CFLAGS-genops.c): Likewise.
(CFLAGS-getc.c): Likewise.
(CFLAGS-getchar.c): Likewise.
(CFLAGS-getwc.c): Likewise.
(CFLAGS-getwchar.c): Likewise.
(CFLAGS-iofclose.c): Likewise.
(CFLAGS-iofflush.c): Likewise.
(CFLAGS-iofgetpos64.c): Likewise.
(CFLAGS-iofgetpos.c): Likewise.
(CFLAGS-iofgets.c): Likewise.
(CFLAGS-iofgetws.c): Likewise.
(CFLAGS-iofputs.c): Likewise.
(CFLAGS-iofputws.c): Likewise.
(CFLAGS-iofread.c): Likewise.
(CFLAGS-iofsetpos64.c): Likewise.
(CFLAGS-iofsetpos.c): Likewise.
(CFLAGS-ioftell.c): Likewise.
(CFLAGS-iofwrite.c): Likewise.
(CFLAGS-iogetdelim.c): Likewise.
(CFLAGS-iogetline.c): Likewise.
(CFLAGS-iogets.c): Likewise.
(CFLAGS-iogetwline.c): Likewise.
(CFLAGS-ioputs.c): Likewise.
(CFLAGS-ioseekoff.c): Likewise.
(CFLAGS-ioseekpos.c): Likewise.
(CFLAGS-iosetbuffer.c): Likewise.
(CFLAGS-iosetvbuf.c): Likewise.
(CFLAGS-ioungetc.c): Likewise.
(CFLAGS-ioungetwc.c): Likewise.
(CFLAGS-oldfileops.c): Likewise.
(CFLAGS-oldiofclose.c): Likewise.
(CFLAGS-oldiofgetpos64.c): Likewise.
(CFLAGS-oldiofgetpos.c): Likewise.
(CFLAGS-oldiofsetpos64.c): Likewise.
(CFLAGS-oldiofsetpos.c): Likewise.
(CFLAGS-peekc.c): Likewise.
(CFLAGS-putc.c): Likewise.
(CFLAGS-putchar.c): Likewise.
(CFLAGS-putwc.c): Likewise.
(CFLAGS-putwchar.c): Likewise.
(CFLAGS-rewind.c): Likewise.
(CFLAGS-wfileops.c): Likewise.
(CFLAGS-wgenops.c): Likewise.
(CFLAGS-oldiofopen.c): Likewise.
(CFLAGS-iofopen.c): Likewise.
(CFLAGS-iofopen64.c): Likewise.
(CFLAGS-oldtmpfile.c): Likewise.
* stdio-common/Makefile (CFLAGS-vfprintf.c): Likewise.
(CFLAGS-fprintf.c): Likewise.
(CFLAGS-printf.c): Likewise.
(CFLAGS-vfwprintf.c): Likewise.
(CFLAGS-vfscanf.c): Likewise.
(CFLAGS-vfwscanf.c): Likewise.
(CFLAGS-fscanf.c): Likewise.
(CFLAGS-scanf.c): Likewise.
(CFLAGS-isoc99_vfscanf.c): Likewise.
(CFLAGS-isoc99_vscanf.c): Likewise.
(CFLAGS-isoc99_fscanf.c): Likewise.
(CFLAGS-isoc99_scanf.c): Likewise.
* wcsmbs/Makefile (CFLAGS-isoc99_wscanf.c): Likewise.
(CFLAGS-isoc99_fwscanf.c): Likewise.
(CFLAGS-isoc99_vwscanf.c): Likewise.
(CFLAGS-isoc99_vfwscanf.c): Likewise.
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I noticed that glibc testsuite runs left several files behind in /tmp
(or TMPDIR, if different). The problem was testcases that generate a
template for mkstemp / mkstemp64, ending with XXXXXX, then pass that
template to add_temp_file before calling mkstemp / mkstemp64, meaning
that the template ending with XXXXXX is stored in the list of
temporary files to delete (add_temp_file uses strdup so that the
original string doesn't need to stay live), not the actual filename as
determined by mkstemp / mkstemp64. This patch fixes those tests to
call add_temp_file later.
Tested for x86_64 (that the files are no longer left behind by a
testsuite run and the modified tests still pass).
* io/test-lfs.c (do_prepare): Do not call add_temp_file until
after mkstemp64.
* login/tst-utmp.c (do_prepare): Likewise.
* rt/tst-aio.c (do_prepare): Likewise.
* rt/tst-aio64.c (do_prepare): Likewise.
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With TLE enabled, the adapt count variable update incurs
an 8% overhead before entering the critical section of an
elided mutex.
Instead, if it is done right after leaving the critical
section, this serialization can be avoided.
This alters the existing behavior of __lll_trylock_elision
as it will only decrement the adapt_count if it successfully
acquires the lock.
* sysdeps/unix/sysv/linux/powerpc/elision-lock.c
(__lll_lock_elision): Remove adapt_count decrement...
* sysdeps/unix/sysv/linux/powerpc/elision-trylock.c
(__lll_trylock_elision): Likewise.
* sysdeps/unix/sysv/linux/powerpc/elision-unlock.c
(__lll_unlock_elision): ... to here. And utilize
new adapt_count parameter.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
(__lll_unlock_elision): Update to include adapt_count
parameter.
(lll_unlock_elision): Pass pointer to adapt_count
variable.
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Adding this parameter will give architectures more freedom in
how they choose to update this variable. This change has no
effect on architectures which choose not to use it.
* nptl/pthread_mutex_unlock.c(lll_unlock_elision):
Add elision adapt_count parameter to list of arguments.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
(lll_unlock_elision): Update with new parameter list
* sysdeps/unix/sysv/linux/s390/lowlevellock.h
(lll_unlock_elision): Likewise
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
(lll_unlock_elision): Likewise
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Since ld.so internel __uname is only used internally in ld.so, it can
be made hidden.
[BZ #19122]
* include/sys/utsname.h [IS_IN (rtld)] (__uname): Add
attribute_hidden.
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Since ld.so internel string functions are only used internally in
ld.so, they can be made hidden.
[BZ #19122]
* include/string.h [IS_IN (rtld)] (__stpcpy): Add
attribute_hidden.
[IS_IN (rtld)] (__strdup): Likewise.
[IS_IN (rtld)] (__strerror_r): Likewise.
[IS_IN (rtld)] (__strsep_g): Likewise.
[IS_IN (rtld)] (memchr): Likewise.
[IS_IN (rtld)] (memcmp): Likewise.
[IS_IN (rtld)] (memcpy): Likewise.
[IS_IN (rtld)] (memmove): Likewise.
[IS_IN (rtld)] (memset): Likewise.
[IS_IN (rtld)] (rawmemchr): Likewise.
[IS_IN (rtld)] (stpcpy): Likewise.
[IS_IN (rtld)] (strchr): Likewise.
[IS_IN (rtld)] (strcmp): Likewise.
[IS_IN (rtld)] (strlen): Likewise.
[IS_IN (rtld)] (strnlen): Likewise.
[IS_IN (rtld)] (strsep): Likewise.
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Since ld.so internel stdlib functions are only used internally in
ld.so, they can be made hidden.
[BZ #19122]
* include/stdlib.h [IS_IN (rtld)] (unsetenv): Add
attribute_hidden.
[IS_IN (rtld)] (__strtoul_internal): Likewise.
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Since ld.so internel sigaction functions are only used internally in
ld.so, they can be made hidden.
[BZ #19122]
* include/signal.h [IS_IN (rtld)] (__sigaction): Add
attribute_hidden.
[IS_IN (rtld)] (__libc_sigaction): Likewise.
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Since internal dirent functions are only used internally in ld.so and
libc.so, they can be made hidden.
[BZ #19122]
* include/setjmp.h (__longjmp): Add attribute_hidden.
[IS_IN (rtld)] (__sigsetjmp): Likewise.
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Since ld.so internel __profile_frequency is only used internally in
ld.so, it can be made hidden.
[BZ #19122]
* include/libc-internal.h [IS_IN (rtld)] (__profile_frequency):
Add attribute_hidden.
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Since internal fcntl functions are only used internally in ld.so and
libc.so, they can be made hidden.
[BZ #19122]
* include/fcntl.h (__libc_fcntl): Add attribute_hidden.
[IS_IN (rtld)] (__open): Likewise.
[IS_IN (rtld)] (__fcntl): Likewise.
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Since internal dirent functions are only used internally in ld.so and
libc.so, they can be made hidden.
[BZ #19122]
* include/dirent.h (__opendirat): Add attribute_hidden.
(__getdents): Likewise.
(__getdents64): Likewise.
(__alloc_dir): Likewise.
[IS_IN (rtld)] (__closedir): Likewise.
[IS_IN (rtld)] (__fdopendir): Likewise.
[IS_IN (rtld)] (__readdir): Likewise.
[IS_IN (rtld)] (__readdir64): Likewise.
[IS_IN (rtld)] (__rewinddir): Likewise.
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Since _dl_catch_error is only used internally in ld.so, it should be
declared in sysdeps/generic/ldsodefs.h, not include/dlfcn.h and it can
be made hidden.
[BZ #19122]
* include/dlfcn.h (_dl_catch_error): Moved to ...
* sysdeps/generic/ldsodefs.h (_dl_catch_error): Add
attribute_hidden.
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Since internal _itoa functions are only used internally in ld.so and
libc.so, they can be made hidden.
[BZ #19122]
* sysdeps/generic/_itoa.h (_itoa): Add attribute_hidden.
(_itoa_word): Likewise.
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Since internal _dl_XXX functions are only used internally in ld.so,
they can be made hidden.
[BZ #19122]
* elf/dl-runtime.c (_dl_fixup): Add attribute_hidden.
* elf/dynamic-link.h (_dl_try_allocate_static_tls): Likewise.
* sysdeps/generic/dl-cache.h (_dl_cache_libcmp): Likewise.
* sysdeps/generic/ldsodefs.h (_dl_name_match_p): Likewise.
(_dl_higher_prime_number): Likewise.
(_dl_debug_printf_c): Likewise.
(_dl_signal_cerror): Likewise.
(_dl_receive_error): Likewise.
(_dl_reloc_bad_type): Likewise.
(_dl_resolve_conflicts): Likewise.
(_dl_check_all_versions): Likewise.
(_dl_check_map_versions): Likewise.
(_dl_sort_fini): Likewise.
(_dl_debug_initialize): Likewise.
(_dl_init_paths): Likewise.
(_dl_show_auxv): Likewise.
(_dl_next_ld_env_entry): Likewise.
(_dl_important_hwcaps): Likewise.
(_dl_load_cache_lookup): Likewise.
(_dl_update_slotinfo): Likewise.
(_dl_show_scope): Likewise.
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Since _wordcopy_XXX functions are only used internally in ld.so and
libc.so, they can be made hidden.
[BZ #19122]
* sysdeps/generic/memcopy.h (_wordcopy_fwd_aligned): Add
attribute_hidden.
(_wordcopy_fwd_dest_aligned): Likewise.
(_wordcopy_bwd_aligned): Likewise.
(_wordcopy_bwd_dest_aligned): Likewise.
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Since x86 _dl_unmap and _dl_make_tlsdesc_dynamic are only used
internally in ld.so, they can be made hidden.
[BZ #19122]
* sysdeps/i386/dl-lookupcfg.h (_dl_unmap): Add attribute_hidden.
* sysdeps/i386/dl-tlsdesc.h (_dl_make_tlsdesc_dynamic):
Likewise.
* sysdeps/x86_64/dl-tlsdesc.h (_dl_make_tlsdesc_dynamic):
Likewise.
* sysdeps/x86_64/dl-lookupcfg.h (_dl_unmap): Likewise.
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* sysdeps/unix/sysv/linux/i386/sysdep.h: Add comments for
GCC 5 requirement.
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There is a configure test for assembler support for -mtune=i686. This
option was added in binutils 2.18 so the test is obsolete; this patch
removes it.
Tested for x86 (testsuite, and that installed shared libraries are
unchanged by the patch).
* sysdeps/i386/configure.ac (libc_cv_as_i686): Remove configure
test.
* sysdeps/i386/configure: Regenerated.
* sysdeps/i386/i686/Makefile [$(config-asflags-i686) = yes]: Make
code unconditional.
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There is a configure test for the assembler .previous directive, and,
as a fallback, for .popsection.
glibc now only supports ELF. For ELF, the GNU assembler has supported
.previous since version 2.2 (support added by
Mon Jul 19 15:21:20 1993 Ken Raeburn (raeburn@rtl.cygnus.com)
* config/obj-elf.c (obj_elf_previous): New function.
(previous_section, previous_subsection): New vars.
(obj_elf_section): Save current place in case DWARF code wants us
to pop back to it. Handle unquoted section name as well as quoted
section name. Don't crash on invalid strings.
(obj_pseudo_table): Handle new pseudos "previous", "2byte", and
"4byte".
). Thus this configure test is obsolete, and this patch removes it
(and with it the fallback .popsection test).
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
* configure.ac (libc_cv_asm_previous_directive): Remove configure
test.
(libc_cv_asm_popsection_directive): Likewise.
* configure: Regenerated.
* config.h.in (HAVE_ASM_PREVIOUS_DIRECTIVE): Remove #undef.
(HAVE_ASM_POPSECTION_DIRECTIVE): Likewise.
* include/libc-symbols.h [HAVE_ASM_PREVIOUS_DIRECTIVE]
(__make_section_unallocated): Make definition unconditional.
[HAVE_ASM_POPSECTION_DIRECTIVE] (__make_section_unallocated):
Remove conditional definition.
[!HAVE_ASM_PREVIOUS_DIRECTIVE && !HAVE_ASM_POPSECTION_DIRECTIVE]
(__make_section_unallocated): Likewise.
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There is a configure test for -static-libgcc. GCC added this option
in version 3.0, so this test is obsolete; this patch removes it.
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
* configure.ac (libc_cv_gcc_static_libgcc): Remove configure test.
* configure: Regenerated.
* config.make.in (static-libgcc): Remove variable.
* Makerules (build-shlib-helper): Use -static-libgcc instead of
$(static-libgcc).
(build-module-helper): Likewise.
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There is a configure test "for libc-friendly stddef.h", which sets a
makefile variable stddef.h that appears to be nowhere used. It
appears the uses of this variable were removed by:
Tue Feb 21 00:10:50 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* Makefile (headers): Remove $(stddef.h).
* Makeconfig (stddef.h): Variable removed; now require gcc version
>= 2.2.
* stddef.h: File removed.
(having been added by
Wed May 26 14:44:19 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
* configure.in (autoconf checks): Add new check for a
libc-friendly stddef.h.
so the test was of use for less than two years, before being obsolete
for over 20 years). This patch removes the test.
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
* configure.ac (libc_cv_friendly_stddef): Remove configure test.
* configure: Regenerated.
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A custom character buffer is added in this commit, in the form of
struct char_buffer. The char_buffer_add function replaces the
ADDW macro (which has grown with each successive security fix).
The char_buffer_add slow path is moved out-of-line, reducing
code size.
* stdio-common/vfscanf.c (MEMCPY): Remove macro.
(struct char_buffer): New type.
(char_buffer_start, char_buffer_size, char_buffer_error)
(char_buffer_rewind, char_buffer_add): New functions.
(ADDW): Remove macro, replaced by the char_buffer_add function.
(_IO_vfscanf_internal): Rewrite using struct char_buffer instead
of extend_alloca. Make control flow more explicit.
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Only i386 implements epoll_pwait in assembly code withot cancellation
support. All other architectures implement epoll_pwait in epoll_pwait.c
with
int epoll_pwait (int epfd, struct epoll_event *events,
int maxevents, int timeout,
const sigset_t *set)
{
return SYSCALL_CANCEL (epoll_pwait, epfd, events, maxevents,
timeout, set, _NSIG / 8);
}
Although there is no test for epoll_pwait in glibc, since SYSCALL_CANCEL
works on i386 and epoll_pwait.c works for other architectures, it is
safe to assume that epoll_pwait.c with SYSCALL_CANCEL also works on
i386.
[BZ #19137]
* sysdeps/unix/sysv/linux/i386/Makefile (CFLAGS-epoll_pwait.c):
Add -fomit-frame-pointer.
* sysdeps/unix/sysv/linux/i386/epoll_pwait.S: Remove file.
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Since GCC 5 and above can properly spill %ebx when needed, we can inline
syscalls with 6 arguments if GCC 5 or above is used to compile glibc.
This patch rewrites INTERNAL_SYSCALL macros and skips __libc_do_syscall
for GCC 5.
For sysdeps/unix/sysv/linux/i386/brk.c, with -O2 -march=i686
-mtune=generic, GCC 5.2 now generates:
<__brk>:
0: push %ebx
1: mov $0x2d,%eax
6: mov 0x8(%esp),%ebx
a: call b <__brk+0xb> b: R_386_PC32 __x86.get_pc_thunk.dx
f: add $0x2,%edx 11: R_386_GOTPC _GLOBAL_OFFSET_TABLE_
15: call *%gs:0x10
1c: mov 0x0(%edx),%edx 1e: R_386_GOT32 __curbrk
22: cmp %eax,%ebx
24: mov %eax,(%edx)
26: ja 30 <__brk+0x30>
28: xor %eax,%eax
2a: pop %ebx
2b: ret
instead of
<__brk>:
0: push %ebx
1: mov 0x8(%esp),%ecx
5: call 6 <__brk+0x6> 6: R_386_PC32 __x86.get_pc_thunk.bx
a: add $0x2,%ebx c: R_386_GOTPC _GLOBAL_OFFSET_TABLE_
10: xchg %ecx,%ebx
12: mov $0x2d,%eax
17: call *%gs:0x10
1e: xchg %ecx,%ebx
20: mov %eax,%edx
22: mov 0x0(%ebx),%eax 24: R_386_GOT32 __curbrk
28: mov %edx,(%eax)
2a: xor %eax,%eax
2c: cmp %edx,%ecx
2e: ja 38 <__brk+0x38>
30: pop %ebx
31: ret
The new one is shorter by 2 instructions.
* sysdeps/unix/sysv/linux/i386/libc-do-syscall.S
(__libc_do_syscall): Defined only if !__GNUC_PREREQ (5,0).
* sysdeps/unix/sysv/linux/i386/sysdep.h: Define assembler macros
only if !__GNUC_PREREQ (5,0).
(INTERNAL_SYSCALL_MAIN_6): Optimize for GCC 5.
(INTERNAL_SYSCALL_MAIN_INLINE): Likewise.
(INTERNAL_SYSCALL_NCS): Likewise.
(LOADREGS_0): New macro for GCC 5.
(ASMARGS_0): Likewise.
(LOADREGS_1): Likewise.
(ASMARGS_1): Likewise.
(LOADREGS_2): Likewise.
(ASMARGS_2): Likewise.
(LOADREGS_3): Likewise.
(ASMARGS_3): Likewise.
(LOADREGS_4): Likewise.
(ASMARGS_4): Likewise.
(LOADREGS_5): Likewise.
(ASMARGS_5): Likewise.
(LOADREGS_6): Likewise.
(ASMARGS_6): Likewise.
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This patch removes i386 assembly implementation for mmap, mmap64,
semtimeop now that i386 have 6 argument syscall support from C code
and GCC 5 can inline syscalls with 6 arguments. We also compile mmap.c,
mmap64.c and semtimedop.c with -fomit-frame-pointer since %ebp may be
used to pass the 6th argument to syscall.
Fo sysdeps/unix/sysv/linux/i386/mmap.c, with -O2 -march=i686
-mtune=generic, GCC 5.2 now generates:
<__mmap>:
0: sub $0x10,%esp
3: mov 0x28(%esp),%eax
7: mov %ebx,(%esp)
a: mov 0x18(%esp),%ecx
e: mov %esi,0x4(%esp)
12: mov 0x14(%esp),%ebx
16: mov %edi,0x8(%esp)
1a: mov 0x1c(%esp),%edx
1e: test $0xfff,%eax
23: mov 0x20(%esp),%esi
27: mov %ebp,0xc(%esp)
2b: mov 0x24(%esp),%edi
2f: jne 60 <__mmap+0x60>
31: shr $0xc,%eax
34: mov %eax,%ebp
36: mov $0xc0,%eax
3b: call *%gs:0x10
42: cmp $0xfffff000,%eax
47: ja 65 <__mmap+0x65>
49: mov (%esp),%ebx
4c: mov 0x4(%esp),%esi
50: mov 0x8(%esp),%edi
54: mov 0xc(%esp),%ebp
58: add $0x10,%esp
5b: ret
5c: lea 0x0(%esi,%eiz,1),%esi
60: mov $0xffffffea,%eax
65: mov (%esp),%ebx
68: mov 0x4(%esp),%esi
6c: mov 0x8(%esp),%edi
70: mov 0xc(%esp),%ebp
74: add $0x10,%esp
77: jmp 78 <__mmap+0x78>
vs sysdeps/unix/sysv/linux/i386/mmap.S:
<__mmap>:
0: push %ebp
1: push %ebx
2: push %esi
3: push %edi
4: mov 0x14(%esp),%ebx
8: mov 0x18(%esp),%ecx
c: mov 0x1c(%esp),%edx
10: mov 0x20(%esp),%esi
14: mov 0x24(%esp),%edi
18: mov 0x28(%esp),%ebp
1c: test $0xfff,%ebp
22: mov $0xffffffea,%eax
27: jne 38 <__mmap+0x38>
29: shr $0xc,%ebp
2c: mov $0xc0,%eax
31: call *%gs:0x10
38: pop %edi
39: pop %esi
3a: pop %ebx
3b: pop %ebp
3c: cmp $0xfffff000,%eax
41: ja 44 <__mmap+0x44>
43: ret
44: call 45 <__mmap+0x45> 45: R_386_PC32 __x86.get_pc_thunk.cx
49: add $0x2,%ecx 4b: R_386_GOTPC _GLOBAL_OFFSET_TABLE_
4f: mov 0x0(%ecx),%ecx 51: R_386_TLS_GOTIE __libc_errno
55: neg %eax
57: mov %eax,%gs:(%ecx)
5a: or $0xffffffff,%eax
5d: ret
The C version has:
3: mov 0x28(%esp),%eax
...
1e: test $0xfff,%eax
...
31: sar $0xc,%eax
34: mov %eax,%ebp
is due to missing $ebx register constraint for inline asm. We have
to use "r" constraint with
register unsigned int _a6 asm ("ebp") = (unsigned int) (arg6);
and compiler chose %eax for offset (arg6) in
if (offset & (MMAP_PAGE_UNIT - 1))
* sysdeps/unix/sysv/linux/i386/Makefile (CFLAGS-epoll_pwait.c):
Add -fomit-frame-pointer.
(CFLAGS-mmap.c): Likewise.
(CFLAGS-mmap64.c): Likewise.
(CFLAGS-semtimedop.c): Likewise.
* sysdeps/unix/sysv/linux/i386/mmap.c: New file.
* sysdeps/unix/sysv/linux/i386/mmap.S: Remove file.
* sysdeps/unix/sysv/linux/i386/mmap64.S: Likewise.
* sysdeps/unix/sysv/linux/i386/semtimedop.S: Likewise.
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Honoring the LD_POINTER_GUARD environment variable in AT_SECURE mode
has security implications. This commit enables pointer guard
unconditionally, and the environment variable is now ignored.
[BZ #18928]
* sysdeps/generic/ldsodefs.h (struct rtld_global_ro): Remove
_dl_pointer_guard member.
* elf/rtld.c (_rtld_global_ro): Remove _dl_pointer_guard
initializer.
(security_init): Always set up pointer guard.
(process_envvars): Do not process LD_POINTER_GUARD.
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The powerpc32 implementation of lround and lroundf can produce
spurious exceptions from adding 0.5 then converting to integer. This
includes "inexact" from the conversion to integer (not allowed for
integer arguments to these functions), and, for larger integer
arguments, "inexact", and "overflow" when rounding upward, from the
addition. In addition, "inexact" is not allowed together with
"invalid" and so inexact addition must be avoided when the integer
will be out of range of 32-bit long, whether or not the argument is an
integer.
This patch fixes these problems. As in the powerpc64 llround
implementation, a check is added for too-large arguments; in the
powerpc64 case that means arguments at least 2^52 in magnitude (so
that 0.5 cannot be added exactly), while in this case it means
arguments for which the result would overflow "long". In those cases
a suitable overflowing value is used for the integer conversion
without adding 0.5, while for smaller arguments it's tested whether
the argument is an integer (by adding and subtracting 2^52 to the
absolute value and comparing with the original absolute value) to
avoid adding 0.5 to integers and generating spurious "inexact".
This code is not used when the power5+ sysdeps directories are used,
as there's a separate power5+ version of these functions..
Tested for powerpc. This gets test-float (for a default powerpc32
hard-float build without any --with-cpu) back to the point where it
should pass once powerpc ulps are regenerated; test-double still needs
another problem with exceptions fixed to get back to that point (and I
haven't looked lately at what default powerpc64 results are like).
[BZ #19134]
* sysdeps/powerpc/powerpc32/fpu/s_lround.S (.LC1): New object.
(.LC2): Likewise.
(.LC3): Likewise.
(__lround): Do not add 0.5 to integer or out-of-range arguments.
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_dl_tlsdesc_resolve_hold calls into a C function that clobbers r0,
but it assumes the original argument is still in r0 after the call.
This can cause crash in case of concurrent TLS access when TLSDESC
is in use (-mtls-dialect=gnu2).
Run into this while fixing BZ 18572.
Both r0 and r1 are saved/restored so the stack remains 8 byte aligned.
[BZ #19129]
* sysdeps/arm/dl-tlsdesc.S (_dl_tlsdesc_resolve_hold): Save and restore
r0 and r1.
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Fix macro indentation.
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[BZ #19074]
* resolv/res_hconf.c (_res_hconf_reorder_addrs): Use atomics to
load and store num_ifs.
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This patch adds an internal entry for __sched_getaffinity_new so that
__sched_getaffinity_old calls __sched_getaffinity_new without going
through PLT.
[BZ #18822]
* sysdeps/unix/sysv/linux/sched_getaffinity.c
(__sched_getaffinity_new): Add libc_hidden_proto and
libc_hidden_def.
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Linker in binutils 2.26 and newer generate GOT references instead
PLT references when -z now is passed to linker. We need to extend
scripts/localplt.awk to allow PLT or GOT references.
[BZ #19007]
* scripts/localplt.awk: Also allow GOT references.
* sysdeps/unix/sysv/linux/i386/localplt.data: Mark
_Unwind_Find_FDE, calloc, memalign, realloc and __libc_memalign
with "+ REL R_386_GLOB_DAT".
* sysdeps/x86_64/localplt.data: Mark calloc, memalign, realloc
and __libc_memalign with "+ RELA R_X86_64_GLOB_DAT".
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This patch uses INTERNAL_SYSCALL and INLINE_SYSCALL_ERROR_RETURN_VALUE
to avoid reading and writing errno directly so that we don't need to
call __x86.get_pc_thunk.reg to load PC into reg in case there is an
error.
* sysdeps/unix/sysv/linux/i386/brk.c (__brk): Use
INLINE_SYSCALL_ERROR_RETURN_VALUE.
* sysdeps/unix/sysv/linux/i386/fxstatat.c (__fxstatat):
Likewise.
* sysdeps/unix/sysv/linux/i386/setegid.c (setegid): Likewise.
* sysdeps/unix/sysv/linux/i386/seteuid.c (seteuid): Likewise.
* sysdeps/unix/sysv/linux/i386/fxstat.c (__fxstat): Use
INTERNAL_SYSCALLINTERNAL_SYSCALL and
INLINE_SYSCALL_ERROR_RETURN_VALUE.
* sysdeps/unix/sysv/linux/i386/lockf64.c (lockf64): Likewise.
* sysdeps/unix/sysv/linux/i386/lxstat.c (__lxstat): Likewise.
* sysdeps/unix/sysv/linux/i386/sigaction.c (__libc_sigaction):
Likewise.
* sysdeps/unix/sysv/linux/i386/xstat.c (__xstat): Likewise.
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The powerpc32 implementations of llroundf and llround produce spurious
and missing exceptions (some arising from such exceptions from
conversions to long long, some present even when fctidz is used).
This patch fixes those problems in a similar way to the llrint /
llrintf fixes. The spurious exceptions in the fctidz case for large
arguments arise from a converted value that saturated as LLONG_MAX
being converted back to float or double (the conversion back being
inexact, but "inexact" must not be raised together with "invalid"),
and from the subtraction x - xrf also being inexact for sufficiently
large arguments (whether the saturation was to LLONG_MAX or
LLONG_MIN); those are fixed by returning early if the argument is
large enough that no rounding is needed.
This code is not used for --with-cpu=power4 builds (I suspect the code
used in that case may also produce spurious "inexact" exceptions, but
that's something to investigate later).
Tested for powerpc.
[BZ #19125]
* sysdeps/powerpc/powerpc32/fpu/s_llround.c: Include <limits.h>,
<math_private.h> and <stdint.h>.
(__llround): Avoid conversions to and from long long int, and
subtractions, where those might raise spurious exceptions.
* sysdeps/powerpc/powerpc32/fpu/s_llroundf.c: Include
<math_private.h> and <stdint.h>.
(__llroundf): Avoid conversions to and from long long int, and
subtractions, where those might raise spurious exceptions.
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This patch replaces
{
__set_errno (ERRNO);
return -1;
}
with INLINE_SYSCALL_ERROR_RETURN_VALUE (ERRNO).
* sysdeps/unix/sysv/linux/adjtime.c (ADJTIME): Use
INLINE_SYSCALL_ERROR_RETURN_VALUE.
* sysdeps/unix/sysv/linux/dl-openat64.c (openat64): Likewise.
* sysdeps/unix/sysv/linux/eventfd.c (eventfd): Likewise.
* sysdeps/unix/sysv/linux/faccessat.c (faccessat): Likewise.
* sysdeps/unix/sysv/linux/fchmodat.c (fchmodat): Likewise.
* sysdeps/unix/sysv/linux/fcntl.c (do_fcntl): Likewise.
* sysdeps/unix/sysv/linux/futimens.c (futimens): Likewise.
* sysdeps/unix/sysv/linux/futimes.c (__futimes): Likewise.
* sysdeps/unix/sysv/linux/fxstat.c (__fxstat): Likewise.
* sysdeps/unix/sysv/linux/fxstatat.c (__fxstatat): Likewise.
* sysdeps/unix/sysv/linux/fxstatat64.c (__fxstatat64): Likewise.
* sysdeps/unix/sysv/linux/lutimes.c (lutimes): Likewise.
* sysdeps/unix/sysv/linux/lxstat.c (__lxstat): Likewise.
* sysdeps/unix/sysv/linux/lxstat64.c (___lxstat64): Likewise.
* sysdeps/unix/sysv/linux/mmap64.c (__mmap64): Likewise.
* sysdeps/unix/sysv/linux/mq_open.c (__mq_open): Likewise.
* sysdeps/unix/sysv/linux/mq_unlink.c (mq_unlink): Likewise.
* sysdeps/unix/sysv/linux/prlimit.c (prlimit): Likewise.
* sysdeps/unix/sysv/linux/readahead.c (__readahead): Likewise.
* sysdeps/unix/sysv/linux/shmat.c (shmat): Likewise.
* sysdeps/unix/sysv/linux/signalfd.c (signalfd): Likewise.
* sysdeps/unix/sysv/linux/speed.c (cfsetospeed): Likewise.
* sysdeps/unix/sysv/linux/tcsetattr.c (tcsetattr): Likewise.
* sysdeps/unix/sysv/linux/ustat.c (ustat): Likewise.
* sysdeps/unix/sysv/linux/utimensat.c (utimensat): Likewise.
* sysdeps/unix/sysv/linux/xmknod.c (__xmknod): Likewise.
* sysdeps/unix/sysv/linux/xmknodat.c (__xmknodat): Likewise.
* sysdeps/unix/sysv/linux/xstat.c (__xstat): Likewise.
* sysdeps/unix/sysv/linux/xstatconv.c (__xstat_conv): Likewise.
(__xstat64_conv): Likewise.
(__xstat32_conv): Likewise.
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For ia32 PIC, the first thing of many syscalls does is to call
__x86.get_pc_thunk.reg to load PC into reg in case there is an error,
which is required for setting errno. In most cases, there are no
errors. But we still call __x86.get_pc_thunk.reg. This patch adds
INLINE_SYSCALL_ERROR_RETURN_VALUE so that i386 can optimize setting
errno by branching to the internal __syscall_error without PLT.
With i386 INLINE_SYSCALL_ERROR_RETURN_VALUE and i386 syscall inlining
optimization for GCC 5, for sysdeps/unix/sysv/linux/fchmodat.c with
-O2 -march=i686 -mtune=generic, GCC 5.2 now generates:
<fchmodat>:
0: push %ebx
1: mov 0x14(%esp),%eax
5: mov 0x8(%esp),%ebx
9: mov 0xc(%esp),%ecx
d: mov 0x10(%esp),%edx
11: test $0xfffffeff,%eax
16: jne 38 <fchmodat+0x38>
18: test $0x1,%ah
1b: jne 48 <fchmodat+0x48>
1d: mov $0x132,%eax
22: call *%gs:0x10
29: cmp $0xfffff000,%eax
2e: ja 58 <fchmodat+0x58>
30: pop %ebx
31: ret
32: lea 0x0(%esi),%esi
38: pop %ebx
39: mov $0xffffffea,%eax
3e: jmp 3f <fchmodat+0x3f> 3f: R_386_PC32 __syscall_error
43: nop
44: lea 0x0(%esi,%eiz,1),%esi
48: pop %ebx
49: mov $0xffffffa1,%eax
4e: jmp 4f <fchmodat+0x4f> 4f: R_386_PC32 __syscall_error
53: nop
54: lea 0x0(%esi,%eiz,1),%esi
58: pop %ebx
59: jmp 5a <fchmodat+0x5a> 5a: R_386_PC32 __syscall_error
instead of
<fchmodat>:
0: sub $0x8,%esp
3: mov 0x18(%esp),%eax
7: mov %ebx,(%esp)
a: call b <fchmodat+0xb> b: R_386_PC32 __x86.get_pc_thunk.bx
f: add $0x2,%ebx 11: R_386_GOTPC _GLOBAL_OFFSET_TABLE_
15: mov %edi,0x4(%esp)
19: test $0xfffffeff,%eax
1e: jne 70 <fchmodat+0x70>
20: test $0x1,%ah
23: jne 88 <fchmodat+0x88>
25: mov 0x14(%esp),%edx
29: mov 0x10(%esp),%ecx
2d: mov 0xc(%esp),%edi
31: xchg %ebx,%edi
33: mov $0x132,%eax
38: call *%gs:0x10
3f: xchg %edi,%ebx
41: cmp $0xfffff000,%eax
46: ja 58 <fchmodat+0x58>
48: mov (%esp),%ebx
4b: mov 0x4(%esp),%edi
4f: add $0x8,%esp
52: ret
53: nop
54: lea 0x0(%esi,%eiz,1),%esi
58: mov 0x0(%ebx),%edx 5a: R_386_TLS_GOTIE __libc_errno
5e: neg %eax
60: mov %eax,%gs:(%edx)
63: mov $0xffffffff,%eax
68: jmp 48 <fchmodat+0x48>
6a: lea 0x0(%esi),%esi
70: mov 0x0(%ebx),%eax 72: R_386_TLS_GOTIE __libc_errno
76: movl $0x16,%gs:(%eax)
7d: mov $0xffffffff,%eax
82: jmp 48 <fchmodat+0x48>
84: lea 0x0(%esi,%eiz,1),%esi
88: mov 0x0(%ebx),%eax 8a: R_386_TLS_GOTIE __libc_errno
8e: movl $0x5f,%gs:(%eax)
95: mov $0xffffffff,%eax
9a: jmp 48 <fchmodat+0x48>
* sysdeps/unix/sysv/linux/sysdep.h: New file.
* sysdeps/unix/sysv/linux/i386/sysdep.c: Likewise.
* sysdeps/unix/sysv/linux/alpha/sysdep.h: Include
<sysdeps/unix/sysv/linux/sysdep.h>.
* sysdeps/unix/sysv/linux/arm/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/generic/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) == csu]
(sysdep-dl-routines): Add sysdep.
[$(subdir) == nptl] (libpthread-routines): Likewise.
[$(subdir) == rt] (librt-routines): Likewise.
* sysdeps/unix/sysv/linux/i386/clone.S (__clone): Don't check
PIC when branching to SYSCALL_ERROR_LABEL.
* sysdeps/unix/sysv/linux/i386/sysdep.S: Removed.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Include
<sysdeps/unix/sysv/linux/sysdep.h>.
(SYSCALL_ERROR_LABEL): Changed to __syscall_error.
(SYSCALL_ERROR_ERRNO): Removed.
(SYSCALL_ERROR_HANDLER): Changed to empty.
(SYSCALL_ERROR_HANDLER_TLS_STORE): Likewise.
(__syscall_error): New prototype.
[IS_IN (libc)] (INLINE_SYSCALL): New macro.
(INLINE_SYSCALL_ERROR_RETURN_VALUE): Likewise.
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When x86-64 assmebler doesn't support AVX512, we should make
_dl_runtime_resolve_avx512/_dl_runtime_profile_avx512 as aliases of
_dl_runtime_resolve_avx/_dl_runtime_profile_avx. Tested on x86-64
using GCC 5.2 with binutils 20151008 and GCC 4.8 with binutils 20130219.
There are no differences in ld.so with binutils 20151008. There are no
unexpected failures with binutils 20130219 and 20151008.
[BZ #19124]
* sysdeps/x86_64/dl-trampoline.S [!HAVE_AVX512_ASM_SUPPORT]
(_dl_runtime_resolve_avx512): Make it a hidden alias of
_dl_runtime_resolve_avx.
(_dl_runtime_profile_avx512): Make it a hidden alias of
_dl_runtime_profile_avx.
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sysdeps/powerpc/fpu/ has versions of llround and llroundf that are
actually used only for powerpc32 because
sysdeps/powerpc/powerpc64/fpu/ has its own versions of those
functions. This patch moves them into sysdeps/powerpc/powerpc32/fpu
to reflect where they are actually used (in preparation for fixing
other problems with those functions).
Tested for powerpc that installed stripped shared libraries are
unchanged by this patch.
* sysdeps/powerpc/fpu/s_llround.c: Move to ....
* sysdeps/powerpc/powerpc32/fpu/s_llround.c: ...here.
* sysdeps/powerpc/fpu/s_llroundf.c: Move to ....
* sysdeps/powerpc/powerpc32/fpu/s_llroundf.c: ...here.
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The versions of llrint and llrintf for older powerpc32 processors
convert the results of __rint / __rintf to long long int, resulting in
spurious exceptions from such casts in certain cases. This patch
makes glibc work around the problems with the libgcc conversions when
the compiler used to build glibc doesn't use the fctidz instruction
for them.
Tested for powerpc.
[BZ #16422]
* sysdeps/powerpc/powerpc32/fpu/configure.ac (libc_cv_ppc_fctidz):
New configure test.
* sysdeps/powerpc/powerpc32/fpu/configure: Regenerated.
* config.h.in [_LIBC] (HAVE_PPC_FCTIDZ): New macro.
* sysdeps/powerpc/powerpc32/fpu/s_llrint.c: Include <limits.h>,
<math_private.h> and <stdint.h>.
(__llrint): Avoid conversions to long long int where those might
raise spurious exceptions.
* sysdeps/powerpc/powerpc32/fpu/s_llrintf.c: Include
<math_private.h> and <stdint.h>.
(__llrintf): Avoid conversions to long long int where those might
raise spurious exceptions.
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hurd/hurd-raise.c (_hurd_raise_signal): Remove unused err variable.
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* hurd/hurd-raise.c (_hurd_raise_signal): Return error returned by
__msg_sig_post.
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