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28 Commits

Author SHA1 Message Date
Adhemerval Zanella
89b53077d2 nptl: Fix Race conditions in pthread cancellation [BZ#12683] 
The current racy approach is to enable asynchronous cancellation
before making the syscall and restore the previous cancellation
type once the syscall returns, and check if cancellation has happen
during the cancellation entrypoint.

As described in BZ#12683, this approach shows 2 problems:

  1. Cancellation can act after the syscall has returned from the
     kernel, but before userspace saves the return value.  It might
     result in a resource leak if the syscall allocated a resource or a
     side effect (partial read/write), and there is no way to program
     handle it with cancellation handlers.

  2. If a signal is handled while the thread is blocked at a cancellable
     syscall, the entire signal handler runs with asynchronous
     cancellation enabled.  This can lead to issues if the signal
     handler call functions which are async-signal-safe but not
     async-cancel-safe.

For the cancellation to work correctly, there are 5 points at which the
cancellation signal could arrive:

	[ ... )[ ... )[ syscall ]( ...
	   1      2        3    4   5

  1. Before initial testcancel, e.g. [*... testcancel)
  2. Between testcancel and syscall start, e.g. [testcancel...syscall start)
  3. While syscall is blocked and no side effects have yet taken
     place, e.g. [ syscall ]
  4. Same as 3 but with side-effects having occurred (e.g. a partial
     read or write).
  5. After syscall end e.g. (syscall end...*]

And libc wants to act on cancellation in cases 1, 2, and 3 but not
in cases 4 or 5.  For the 4 and 5 cases, the cancellation will eventually
happen in the next cancellable entrypoint without any further external
event.

The proposed solution for each case is:

  1. Do a conditional branch based on whether the thread has received
     a cancellation request;

  2. It can be caught by the signal handler determining that the saved
     program counter (from the ucontext_t) is in some address range
     beginning just before the "testcancel" and ending with the
     syscall instruction.

  3. SIGCANCEL can be caught by the signal handler and determine that
     the saved program counter (from the ucontext_t) is in the address
     range beginning just before "testcancel" and ending with the first
     uninterruptable (via a signal) syscall instruction that enters the
      kernel.

  4. In this case, except for certain syscalls that ALWAYS fail with
     EINTR even for non-interrupting signals, the kernel will reset
     the program counter to point at the syscall instruction during
     signal handling, so that the syscall is restarted when the signal
     handler returns.  So, from the signal handler's standpoint, this
     looks the same as case 2, and thus it's taken care of.

  5. For syscalls with side-effects, the kernel cannot restart the
     syscall; when it's interrupted by a signal, the kernel must cause
     the syscall to return with whatever partial result is obtained
     (e.g. partial read or write).

  6. The saved program counter points just after the syscall
     instruction, so the signal handler won't act on cancellation.
     This is similar to 4. since the program counter is past the syscall
     instruction.

So The proposed fixes are:

  1. Remove the enable_asynccancel/disable_asynccancel function usage in
     cancellable syscall definition and instead make them call a common
     symbol that will check if cancellation is enabled (__syscall_cancel
     at nptl/cancellation.c), call the arch-specific cancellable
     entry-point (__syscall_cancel_arch), and cancel the thread when
     required.

  2. Provide an arch-specific generic system call wrapper function
     that contains global markers.  These markers will be used in
     SIGCANCEL signal handler to check if the interruption has been
     called in a valid syscall and if the syscalls has side-effects.

     A reference implementation sysdeps/unix/sysv/linux/syscall_cancel.c
     is provided.  However, the markers may not be set on correct
     expected places depending on how INTERNAL_SYSCALL_NCS is
     implemented by the architecture.  It is expected that all
     architectures add an arch-specific implementation.

  3. Rewrite SIGCANCEL asynchronous handler to check for both canceling
     type and if current IP from signal handler falls between the global
     markers and act accordingly.

  4. Adjust libc code to replace LIBC_CANCEL_ASYNC/LIBC_CANCEL_RESET to
     use the appropriate cancelable syscalls.

  5. Adjust 'lowlevellock-futex.h' arch-specific implementations to
     provide cancelable futex calls.

Some architectures require specific support on syscall handling:

  * On i386 the syscall cancel bridge needs to use the old int80
    instruction because the optimized vDSO symbol the resulting PC value
    for an interrupted syscall points to an address outside the expected
    markers in __syscall_cancel_arch.  It has been discussed in LKML [1]
    on how kernel could help userland to accomplish it, but afaik
    discussion has stalled.

    Also, sysenter should not be used directly by libc since its calling
    convention is set by the kernel depending of the underlying x86 chip
    (check kernel commit 30bfa7b3488bfb1bb75c9f50a5fcac1832970c60).

  * mips o32 is the only kABI that requires 7 argument syscall, and to
    avoid add a requirement on all architectures to support it, mips
    support is added with extra internal defines.

Checked on aarch64-linux-gnu, arm-linux-gnueabihf, powerpc-linux-gnu,
powerpc64-linux-gnu, powerpc64le-linux-gnu, i686-linux-gnu, and
x86_64-linux-gnu.

[1] https://lkml.org/lkml/2016/3/8/1105
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2024-08-23 14:27:43 -03:00
Paul Eggert
dff8da6b3e Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Joseph Myers
6d7e8eda9b Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
Adhemerval Zanella
404656009b nptl: Handle spurious EINTR when thread cancellation is disabled (BZ#29029) 
Some Linux interfaces never restart after being interrupted by a signal
handler, regardless of the use of SA_RESTART [1].  It means that for
pthread cancellation, if the target thread disables cancellation with
pthread_setcancelstate and calls such interfaces (like poll or select),
it should not see spurious EINTR failures due the internal SIGCANCEL.

However recent changes made pthread_cancel to always sent the internal
signal, regardless of the target thread cancellation status or type.
To fix it, the previous semantic is restored, where the cancel signal
is only sent if the target thread has cancelation enabled in
asynchronous mode.

The cancel state and cancel type is moved back to cancelhandling
and atomic operation are used to synchronize between threads.  The
patch essentially revert the following commits:

  8c1c0aae20 nptl: Move cancel type out of cancelhandling
  2b51742531 nptl: Move cancel state out of cancelhandling
  26cfbb7162 nptl: Remove CANCELING_BITMASK

However I changed the atomic operation to follow the internal C11
semantic and removed the MACRO usage, it simplifies a bit the
resulting code (and removes another usage of the old atomic macros).

Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu,
and powerpc64-linux-gnu.

[1] https://man7.org/linux/man-pages/man7/signal.7.html

Reviewed-by: Florian Weimer <fweimer@redhat.com>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
 2022-04-14 12:48:31 -03:00
Paul Eggert
581c785bf3 Update copyright dates with scripts/update-copyrights 
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
 2022-01-01 11:40:24 -08:00
Siddhesh Poyarekar
30891f35fa Remove "Contributed by" lines 
We stopped adding "Contributed by" or similar lines in sources in 2012
in favour of git logs and keeping the Contributors section of the
glibc manual up to date.  Removing these lines makes the license
header a bit more consistent across files and also removes the
possibility of error in attribution when license blocks or files are
copied across since the contributed-by lines don't actually reflect
reality in those cases.

Move all "Contributed by" and similar lines (Written by, Test by,
etc.) into a new file CONTRIBUTED-BY to retain record of these
contributions.  These contributors are also mentioned in
manual/contrib.texi, so we just maintain this additional record as a
courtesy to the earlier developers.

The following scripts were used to filter a list of files to edit in
place and to clean up the CONTRIBUTED-BY file respectively.  These
were not added to the glibc sources because they're not expected to be
of any use in future given that this is a one time task:

https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc
https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2021-09-03 22:06:44 +05:30
Adhemerval Zanella
2b51742531 nptl: Move cancel state out of cancelhandling 
Now that thread cancellation state is not accessed concurrently anymore,
it is possible to move it out the 'cancelhandling'.

The code is also simplified: CANCELLATION_P is replaced with a
internal pthread_testcancel call and the CANCELSTATE_BIT{MASK} is
removed.

With this behavior pthread_setcancelstate does not require to act on
cancellation if cancel type is asynchronous (is already handled either
by pthread_setcanceltype or by the signal handler).

Checked on x86_64-linux-gnu and aarch64-linux-gnu.
 2021-06-09 15:16:45 -03:00
Florian Weimer
93d78ec1cb nptl: Move pthread_setcancelstate into libc 
No new symbol version is required because there was a forwarder.

The symbol has been moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 2021-04-21 19:49:50 +02:00
Paul Eggert
2b778ceb40 Update copyright dates with scripts/update-copyrights 
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
 2021-01-02 12:17:34 -08:00
Joseph Myers
d614a75396 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Paul Eggert
5a82c74822 Prefer https to http for gnu.org and fsf.org URLs 
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
 2019-09-07 02:43:31 -07:00
Joseph Myers
04277e02d7 Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2019-01-01 00:11:28 +00:00
Joseph Myers
688903eb3e Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2018-01-01 00:32:25 +00:00
Joseph Myers
bfff8b1bec Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Joseph Myers
9d46370ca3 Convert 703 function definitions to prototype style. 
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.
 2015-10-16 20:21:49 +00:00
H.J. Lu
e5d19c08d1 Use __pthread_setcancelstate in libc.a 
This patch references __pthread_setcancelstate instead of
pthread_setcancelstate in libc.a.

	[BZ #18970]
	* misc/error.c (error): Replace pthread_setcancelstate with
	__pthread_setcancelstate.
	(error_at_line): Likewise.
	* posix/wordexp.c (parse_comm): Likewise.
	* stdlib/fmtmsg.c (fmtmsg): Likewise.
	* nptl/forward.c (pthread_setcancelstate): Renamed to ...
	(__pthread_setcancelstate): This.
	(pthread_setcancelstate): Add an alias.
	* nptl/nptl-init.c (pthread_functions): Replace
	ptr_pthread_setcancelstate with ptr___pthread_setcancelstate.
	* sysdeps/nptl/pthread-functions.h (pthread_functions): Likewise.
	* nptl/pthreadP.h (__pthread_setcancelstate): Mark it with
	hidden_proto.
	* nptl/pthread_setcancelstate.c (__pthread_setcancelstate): Mark
	it with hidden_def.
	* sysdeps/nptl/libc-lockP.h (__pthread_setcancelstate): New.
	(pthread_setcancelstate): Renamed to ...
	(__pthread_setcancelstate): This.
	* sysdeps/unix/sysv/linux/fatal-prepare.h (FATAL_PREPARE): Use
	__libc_ptf_call with __pthread_setcancelstate.
 2015-09-17 16:38:54 -07:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Ondřej Bílka
a1ffb40e32 Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Ulrich Drepper
b22d701bb7 Update. 
2003-04-04  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/pthread/createthread.c (create_thread): Add some more
	comments explaining when to set multiple_threads and when not.

	* pthreadP.h: Define THREAD_ATOMIC_CMPXCHG_VAL and
	THREAD_ATOMIC_BIT_SET if not already defined.
	* sysdeps/i386/tls.h: Define THREAD_ATOMIC_CMPXCHG_VAL and
	THREAD_ATOMIC_BIT_SET:
	* sysdeps/x86_64/tls.h: Likewise.
	* cleanup_defer.c (_pthread_cleanup_push_defer): Rewrite to use
	THREAD_ATOMIC_CMPXCHG_VAL.
	(_pthread_cleanup_pop_restore): Likewise.
	* cancellation.c (__pthread_enable_asynccancel): Likewise.
	(__pthread_enable_asynccancel_2): Likewise.
	(__pthread_disable_asynccancel): Likewise.
	* libc-cancellation.c (__libc_enable_asynccancel): Likewise.
	(__libc_disable_asynccancel): Likewise.
	* init.c (sigcancel_handler): Likewise.
	* pthread_setcancelstate.c (__pthread_setcancelstate): Likewise.
	* pthread_setcanceltype.c (__pthread_setcanceltype): Likewise.
 2003-04-05 05:21:15 +00:00
Ulrich Drepper
5a3ab2fc18 Update. 
2003-03-21  Ulrich Drepper  <drepper@redhat.com>

	* cancellation.c: Adjust for new form of compare&exchange macros.
	* cleanup_defer.c: Likewise.
	* init.c: Likewise.
	* libc-cancellation.c: Likewise.
	* old_pthread_cond_broadcast.c: Likewise.
	* old_pthread_cond_signal.c: Likewise.
	* old_pthread_cond_timedwait.c: Likewise.
	* old_pthread_cond_wait.c: Likewise.
	* pthread_cancel.c: Likewise.
	* pthread_create.c: Likewise.
	* pthread_detach.c: Likewise.
	* pthread_join.c: Likewise.
	* pthread_key_delete.c: Likewise.
	* pthread_setcancelstate.c: Likewise.
	* pthread_setcanceltype.c: Likewise.
	* pthread_timedjoin.c: Likewise.
	* pthread_tryjoin.c: Likewise.
	* sysdeps/pthread/createthread.c: Likewise.
 2003-03-21 08:03:25 +00:00
Ulrich Drepper
8361400815 Add namespace protected alias. 2002-12-15 19:59:08 +00:00
Ulrich Drepper
9ae0909b35 Update. 
2002-12-13  Ulrich Drepper  <drepper@redhat.com>

	* misc/syslog.c (log_cleanup): Don't use parameter in
	__libc_lock_unlock call, use syslog_lock directly.  Adjust callers to
	pass NULL instead of a pointer to syslog_lock.
 2002-12-13 10:59:14 +00:00
Ulrich Drepper
3335502bec Update. 
2002-12-08  Ulrich Drepper  <drepper@redhat.com>

	* include/unistd.h: Declare __libc_close.
 2002-12-08 08:05:25 +00:00
Ulrich Drepper
76a50749f7 Initial revision 
2002-11-26  Ulrich Drepper  <drepper@redhat.com>
	* allocatestack.c (queue_stack): Don't remove stack from list here.
	Do it in the caller.  Correct condition to prematurely terminate
	loop to free stacks.
	(__deallocate_stack): Remove stack from list here.
2002-11-26  Ulrich Drepper  <drepper@redhat.com>
	* Makefile (tests): Add tst-stack1.
	* tst-stack1.c: New file.
	* allocatestack.c (allocate_stack): Initialize the TCB on a user
	provided stack.
	* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25  Ulrich Drepper  <drepper@redhat.com>
	* Makefile (libpthread-routines): Add pt-allocrtsig and
	pthread_kill_other_threads.
	* pt-allocrtsig.c: New file.
	* pthread_kill_other_threads.c: New file.
	* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
	all three functions.
	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
	allocrtsig.
	* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
	__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
	and __libc_allocate_rtsig_private.
	* Versions (libpthread): Export pthread_kill_other_threads_np,
	__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24  Ulrich Drepper  <drepper@redhat.com>

	* allocatestack.c (allocate_stack): stackaddr in attribute points to
	the end of the stack.  Adjust computations.
	When mprotect call fails dequeue stack and free it.
	* pthread_attr_setstack.c: Store top of the stack in stackaddr
	attribute.
	* pthread_getattr_np.c: Likewise.

	* descr.h (IS_DETACHED): Add some more parenthesis to prevent
	surprises.

2002-11-23  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
	attribute definitions.  Patch by Luca Barbieri <ldb@ldb.ods.org>.

2002-11-22  Ulrich Drepper  <drepper@redhat.com>

	* pthread_getspecific.c: Optimize access to first 2nd-level array.
	* pthread_setspecific.c: Likewise.

2002-11-21  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
	definitions.  Get them from the official place.
	* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.

	* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
	Use new CLONE_ flags in clone() calls.

	* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
	* sysdeps/unix/sysv/linux/i386/fork.c: New file.

	* Versions: Add pthread_* functions for libc.
	* forward.c: New file.

	* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
	errno-loc.
	* herrno.c: New file.
	* res.c: New file.

	* Makefile (libpthread-routines): Remove sem_post, sem_wait,
	sem_trywait, and sem_timedwait.  Add herrno and res.
	* sem_init.c: Don't initialize lock and waiters members.
	* sem_open.c: Likewise.
	* sem_post.c: Removed.
	* sem_wait.c: Removed.
	* sem_trywait.c: Removed.
	* sem_timedwait.c: Removed.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
	Includes full implementations of sem_post, sem_wait, sem_trywait,
	and sem_timedwait.
	* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
	for new implementation.
	* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
	and waiters fields.

	* tst-sem3.c: Improve error message.
	* tst-signal3.c: Likewise.

	* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
	to tell the kernel about the termination futex and to initialize tid
	member.  Don't initialize main_thread.
	* descr.h (struct pthread): Remove main_thread member.
	* cancelllation.c (__do_cancel): Remove code handling main thread.
	The main thread is not special anymore.

	* allocatestack.c (__reclaim_stacks): Mark stacks as unused.  Add
	size of the stacks to stack_cache_actsize.

	* pt-readv.c: Add missing "defined".
	* pt-sigwait.c: Likewise.
	* pt-writev.c: Likewise.

2002-11-09  Ulrich Drepper  <drepper@redhat.com>

	* Versions: Export __connect from libpthread.
	Patch by Luca Barbieri <ldb@ldb.ods.org>.

	* Makefile (libpthread-routines): Add pt-raise.
	* sysdeps/unix/sysv/linux/raise.c: New file.
	* sysdeps/unix/sysv/linux/pt-raise.c: New file.
	* sysdeps/generic/pt-raise.c: New file.

	* pthread_cond_init.c: Initialize all data elements of the condvar
	structure.  Patch by Luca Barbieri <ldb@ldb.ods.org>.

	* pthread_attr_init.c: Actually implement 2.0 compatibility version.
	* pthread_create.c: Likewise.

	* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
	* tst-key1.c: New file.
	* tst-key2.c: New file.
	* tst-key3.c: New file.

	* Versions: Export pthread_detach for version GLIBC_2.0.
	Reported by Saurabh Desai <sdesai@austin.ibm.com>.

2002-11-08  Ulrich Drepper  <drepper@redhat.com>

	* pthread_key_create.c: Terminate search after an unused key was found.
	Patch by Luca Barbieri <ldb@ldb.ods.org>.

	* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
	Patch by Luca Barbieri <ldb@ldb.ods.org>.

2002-10-10  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
	dynamic lookup for errno in PIC.

	* allocatestack.c (get_cached_stack): Rearrange code slightly to
	release the stack lock as soon as possible.
	Call _dl_allocate_tls_init for TCB from the cache to re-initialize
	the static TLS block.
	(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.

	* cancellation.c: Renamed from cancelation.c.
	* Makefile: Adjust accordingly.
	* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
	* cleanup_defer.c: Use CANCELLATION_P.
	* pthread_testcancel.c: Likewise.
	* descr.h: Fix spelling in comments.
	* init.c: Likewise.
	* pthread_getattr_np.c: Likewise.
	* pthread_getschedparam.c: Likewise.
	* pthread_setschedparam.c: Likewise.
	* Versions: Likewise.

	* pt-pselect.c: New file.
	* Makefile (libpthread-routines): Add pt-pselect.
	* Versions: Add pselect.

	* tst-cancel4.c: New file.
	* Makefile (tests): Add tst-cancel4.

2002-10-09  Ulrich Drepper  <drepper@redhat.com>

	* pthread_mutex_lock.c: Always record lock ownership.
	* pthread_mutex_timedlock.c: Likewise.
	* pthread_mutex_trylock.c: Likewise.

	* pt-readv.c: New file.
	* pt-writev.c: New file.
	* pt-creat.c: New file.
	* pt-msgrcv.c: New file.
	* pt-msgsnd.c: New file.
	* pt-poll.c: New file.
	* pt-select.c: New file.
	* pt-sigpause.c: New file.
	* pt-sigsuspend.c: New file.
	* pt-sigwait.c: New file.
	* pt-sigwaitinfo.c: New file.
	* pt-waitid.c: New file.
	* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
	pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
	pt-sigwait, pt-sigwaitinfo, and pt-waitid.
	* Versions: Add all the new functions.

	* tst-exit1.c: New file.
	* Makefile (tests): Add tst-exit1.

	* sem_timedwait.c: Minor optimization for more optimal fastpath.

2002-10-08  Ulrich Drepper  <drepper@redhat.com>

	* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.

	* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
	call.  pthread_join is an official cancellation point.
	* pthread_timedjoin.c: Likewise.

	* pthread_cond_wait.c: Revert order in which internal lock are dropped
	and the condvar's mutex are retrieved.
	* pthread_cond_timedwait.c: Likewise.
	Reported by dice@saros.East.Sun.COM.

2002-10-07  Ulrich Drepper  <drepper@redhat.com>

	* pthreadP.h: Cut out all type definitions and move them...
	* sysdeps/unix/sysv/linux/internaltypes.h: ...here.  New file.
	* pthreadP.h: Include <internaltypes.h>.

	* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
	performance tweaks.

	* sem_trywait.c: Shuffle #includes around to get right order.
	* sem_timedwait.c: Likewise.
	* sem_post.c: Likewise.
	* sem_wait.c: Likewise.

	* nptl 0.3 released.

	* Makefile (tests): Add tst-signal3.
	* tst-signal3.c: New file.

2002-10-05  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
	the asms modify the sem object.
	(__lll_sem_timedwait): Now takes struct sem* as first parameter.

	* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
	the actual members.
	* pthreadP.h (struct sem): New type.  Actual semaphore type.
	* semaphoreP.h: Include pthreadP.h.
	* sem_getvalue.c: Adjust to sem_t change.
	* sem_init.c: Likewise.
	* sem_open.c: Likewise.
	* sem_post.c: Likewise.
	* sem_timedwait.c: Likewise.
	* sem_trywait.c: Likewise.
	* sem_wait.c: Likewise.

2002-10-04  Ulrich Drepper  <drepper@redhat.com>

	* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
	* tst-basic2.c: New file.
	* tst-exec1.c: New file.
	* tst-exec2.c: New file.
	* tst-exec3.c: New file.

	* tst-fork1.c: Remove extra */.

	* nptl 0.2 released.  The API for IA-32 is complete.
 2002-11-26 22:50:54 +00:00