Konstantin Belousov bd6060a1c6 Switch libc from using _sig{procmask,action,suspend} symbols, which ...

are aliases for the syscall stubs and are plt-interposed, to the
libc-private aliases of internally interposed sigprocmask() etc.

Since e.g. _sigaction is not interposed by libthr, calling signal()
removes thr_sighandler() from the handler slot etc.  The result was
breaking signal semantic and rtld locking.

The added __libc_sigprocmask and other symbols are hidden, they are
not exported and cannot be called through PLT.  The setjmp/longjmp
functions for x86 were changed to use direct calls, and since
PIC_PROLOGUE only needed for functional PLT indirection on i386, it is
removed as well.

The PowerPC bug of calling the syscall directly in the setjmp/longjmp
implementation is kept as is.

Reported by:	Pete French <petefrench@ingresso.co.uk>
Tested by:	Michiel Boland <boland37@xs4all.nl>
Reviewed by:	jilles (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

2015-08-29 14:25:01 +00:00

..

__getosreldate.c

Use aux vector to get values for SSP canary, pagesize, pagesizes array,

2010-08-17 09:13:26 +00:00

__pthread_mutex_init_calloc_cb_stub.c

Fix known issues which blow up the process after dlopen("libthr.so")

2015-01-03 18:38:46 +00:00

__xuname.c

…

_once_stub.c

Reassign copyright statements on several files from Advanced

2015-04-23 14:22:20 +00:00

_pthread_stubs.c

style(9) fix.

2011-11-26 16:49:25 +00:00

_rand48.c

…

_spinlock_stub.c

Fix typo. Note that this is mostly innocent, since libthr no longer

2015-02-27 19:23:01 +00:00

_thread_init.c

Turn off default generation of userland dot symbols on powerpc64 now that

2011-02-18 21:44:53 +00:00

alarm.3

Update xrefs from 4.3BSD to modern signal functions in various man pages.

2010-05-06 22:49:54 +00:00

alarm.c

…

arc4random.3

Globally replace u_int*_t from (non-contributed) man pages.

2012-02-12 18:29:56 +00:00

arc4random.c

libc/gen: small updates to code originating at OpenBSD

2014-07-15 02:21:35 +00:00

assert.c

…

auxv.c

Rename aux.c to auxv.c.

2012-08-11 12:07:24 +00:00

basename.3

Sync with OpenBSD, primarily make the code easier to read, and a license

2011-06-18 00:33:34 +00:00

basename.c

Sync with OpenBSD, primarily make the code easier to read, and a license

2011-06-18 00:33:34 +00:00

cap_rights_get.3

Various mdoc fixes and a few EOL whitespace removals.

2014-12-21 12:36:36 +00:00

cap_sandboxed.3

use .Mt to mark up email addresses consistently (part4)

2014-06-23 08:25:03 +00:00

cap_sandboxed.c

Update most userspace consumers of capability.h to use capsicum.h instead.

2014-03-16 11:04:44 +00:00

check_utility_compat.3

use .Mt to mark up email addresses consistently (part4)

2014-06-23 08:25:03 +00:00

check_utility_compat.c

- Reduce buffer size from LINE_MAX to PATH_MAX, there is no point to store

2012-12-21 22:20:59 +00:00

clock_getcpuclockid.3

use .Mt to mark up email addresses consistently (part4)

2014-06-23 08:25:03 +00:00

clock_getcpuclockid.c

Fix prototype. Also the function should return error code instead of

2012-08-21 09:17:13 +00:00

clock.3

…

clock.c

…

closedir.c

Implement fdclosedir(3) function, which is equivalent to the closedir(3)

2013-08-18 20:11:34 +00:00

confstr.3

mdoc: drop redundant .Pp and .LP calls

2010-10-08 12:40:16 +00:00

confstr.c

…

crypt.c

…

ctermid.3

Reimplement ctermid().

2011-10-01 12:19:48 +00:00

ctermid.c

Reimplement ctermid().

2011-10-01 12:19:48 +00:00

daemon.3

…

daemon.c

Switch libc from using _sig{procmask,action,suspend} symbols, which

2015-08-29 14:25:01 +00:00

devname.3

…

devname.c

Get rid of major/minor number distinction.

2011-09-28 18:53:36 +00:00

directory.3

Remove the note about seekdir() removing telldir() cookies. That was

2015-05-06 15:30:05 +00:00

dirfd.c

Put my name as copyright owner of lib/libc/gen/dirfd.c added in r235647.

2012-05-19 14:30:49 +00:00

dirname.3

…

dirname.c

…

disklabel.c

Drop cgetclose() from getdiskbyname().

2015-02-06 14:07:01 +00:00

dl_iterate_phdr.3

Update dl_iterate_phdr(3) to follow r272842

2014-10-09 22:58:33 +00:00

dladdr.3

mdoc: order prologue macros consistently by Dd/Dt/Os

2010-04-14 19:08:06 +00:00

dlfcn.c

Remove the write-only variable phent. We currently do not check the

2015-05-20 15:37:15 +00:00

dlinfo.3

use .Mt to mark up email addresses consistently (part4)

2014-06-23 08:25:03 +00:00

dllockinit.3

mdoc: order prologue macros consistently by Dd/Dt/Os

2010-04-14 19:08:06 +00:00

dlopen.3

The ld(1) flag is -Bsymbolic not -Wsymbolic.

2015-02-14 15:14:41 +00:00

drand48.c

…

dup3.3

dup3(3): Replace copyright notice.

2013-08-18 13:25:18 +00:00

dup3.c

Add dup3(), based on F_DUP2FD and F_DUP2FD_CLOEXEC fcntls.

2013-08-16 13:10:30 +00:00

elf_utils.c

Implement __pthread_map_stacks_exec() callback for libc, to change the

2011-01-08 17:13:43 +00:00

erand48.c

…

err.3

Use the .Bx macro instead of BSD

2012-04-26 19:21:58 +00:00

err.c

…

errlst.c

Revert r274772: it is not valid on MIPS

2014-11-25 03:50:31 +00:00

errno.c

…

exec.3

…

exec.c

Replace index() and rindex() calls with strchr() and strrchr().

2012-01-03 18:51:58 +00:00

fdevname.c

Remove (hidden) warning about missing prototypes for fdevname(3).

2009-12-05 18:51:44 +00:00

feature_present.3

[mdoc] Fixed .Dt call.

2011-05-25 14:13:53 +00:00

feature_present.c

…

fmtcheck.3

mdoc: move CAVEATS, BUGS and SECURITY CONSIDERATIONS sections to the

2010-05-13 12:07:55 +00:00

fmtcheck.c

…

fmtmsg.3

…

fmtmsg.c

libc: Make various internal file descriptors close-on-exec.

2012-12-10 17:56:51 +00:00

fnmatch.3

…

fnmatch.c

According to POSIX \ in the fnmatch(3) pattern should escape

2013-08-08 09:04:02 +00:00

fpclassify.3

…

fpclassify.c

Fix __fpclassifyl when double == long double. As with r283693 this is

2015-05-29 09:26:10 +00:00

frexp.3

mdoc: don't abuse Bo/Pc to get what looks like an interval

2010-04-14 18:29:34 +00:00

frexp.c

…

fstab.c

Replace strcpy() with strlcpy()

2015-02-15 21:11:07 +00:00

ftok.3

Various mdoc fixes and a few EOL whitespace removals.

2014-12-21 12:36:36 +00:00

ftok.c

…

fts-compat.c

libc/fts: Use O_CLOEXEC for internal file descriptors.

2012-09-27 22:05:54 +00:00

fts-compat.h

Remove the advertising clause from the Regents of the University of

2013-05-28 21:05:06 +00:00

fts.3

fts(3): Remove stray mentions of the obsolete fts_bignum.

2014-01-12 20:47:08 +00:00

fts.c

fts_children: preserve errno after running close/fchdir

2015-06-20 20:54:05 +00:00

ftw.3

Various mdoc fixes and a few EOL whitespace removals.

2014-12-21 12:36:36 +00:00

ftw.c

ftw(): Do not check the maxfds argument against OPEN_MAX.

2012-08-09 15:11:38 +00:00

gen-private.h

Fix some edge cases with rewinddir():

2014-07-11 16:16:26 +00:00

getbootfile.3

…

getbootfile.c

…

getbsize.3

mdoc: Use the Ev macro for environmental variables.

2012-11-16 12:03:50 +00:00

getbsize.c

…

getcap.3

Various mdoc fixes and a few EOL whitespace removals.

2014-12-21 12:36:36 +00:00

getcap.c

libc: Make various internal file descriptors close-on-exec.

2012-12-10 17:56:51 +00:00

getcontext.3

Add the getcontextx prototype to SYNOPSIS.

2013-03-13 18:18:16 +00:00

getcwd.3

getcwd(3): Clarify that EACCES may or may not be checked.

2010-04-17 15:52:50 +00:00

getcwd.c

libc: Use O_CLOEXEC for various internal file descriptors.

2012-09-29 11:54:34 +00:00

getdiskbyname.3

Remove vestiges of disklabel(5).

2011-04-14 08:53:04 +00:00

getdomainname.3

…

getdomainname.c

…

getfsent.3

…

getgrent.3

…

getgrent.c

Fix small memleaks in nis_passwd() and nis_group().

2015-02-20 01:02:32 +00:00

getgrouplist.3

getgrouplist(3) was reimplemented in terms of getgrent_r(3) in r174547, so

2014-10-27 04:09:23 +00:00

getgrouplist.c

…

gethostname.3

…

gethostname.c

…

getloadavg.3

…

getloadavg.c

…

getlogin.c

The getlogin_basic() function can return a 0 status with a NULL

2014-04-05 18:14:58 +00:00

getmntinfo.3

…

getmntinfo.c

…

getnetgrent.3

…

getnetgrent.c

libc: Make various internal file descriptors close-on-exec.

2012-12-10 17:56:51 +00:00

getosreldate.3

…

getosreldate.c

Clean up includes; the prototype for getosreldate() has moved to

2011-12-14 08:35:08 +00:00

getpagesize.3

…

getpagesize.c

Use aux vector to get values for SSP canary, pagesize, pagesizes array,

2010-08-17 09:13:26 +00:00

getpagesizes.3

use .Mt to mark up email addresses consistently (part4)

2014-06-23 08:25:03 +00:00

getpagesizes.c

Use aux vector to get values for SSP canary, pagesize, pagesizes array,

2010-08-17 09:13:26 +00:00

getpass.3

…

getpeereid.3

…

getpeereid.c

…

getprogname.3

…

getprogname.c

…

getpwent.3

…

getpwent.c

compat_passwd(): yet another uninitialized access to stayopen.

2015-03-06 22:22:57 +00:00

getttyent.3

Add two changes that should have gone into commit r202274.

2010-01-14 05:37:43 +00:00

getttyent.c

Add a new flag to /etc/ttys: onifconsole. This is equivalent to "on" if the

2014-01-20 18:15:06 +00:00

getusershell.3

…

getusershell.c

libc: Make various internal file descriptors close-on-exec.

2012-12-10 17:56:51 +00:00

getutxent.3

Escape "Ed"

2015-04-26 10:29:43 +00:00

getutxent.c

Make getutxent(3) more robust against bad utx.log files. Whenever we read

2013-10-15 13:32:01 +00:00

getvfsbyname.3

…

getvfsbyname.c

…

glob.3

- Add restrict keyword to glob(3)

2011-12-20 22:56:13 +00:00

glob.c

Spelling correction

2013-04-11 20:15:37 +00:00

initgroups.3

getgrouplist(3) was reimplemented in terms of getgrent_r(3) in r174547, so

2014-10-27 04:09:23 +00:00

initgroups.c

…

isatty.c

…

isgreater.3

mdoc: consistently spell our email addresses <foo@FreeBSD.org>

2010-05-19 08:57:53 +00:00

isinf.c

Fix __isinfl on architectures where double == long double. This is the

2015-05-29 09:23:20 +00:00

isnan.c

Revert r274772: it is not valid on MIPS

2014-11-25 03:50:31 +00:00

jrand48.c

…

lcong48.c

…

ldexp.3

…

ldexp.c

…

libc_dlopen.c

Fix a problem whereby a corrupt DNS record can cause named to crash. [11:06]

2011-12-23 15:00:37 +00:00

lockf.3

Consistently reference file descriptors as "fd". 55 other manpages

2013-09-12 00:53:38 +00:00

lockf.c

…

lrand48.c

…

makecontext.3

…

Makefile.inc

Fix known issues which blow up the process after dlopen("libthr.so")

2015-01-03 18:38:46 +00:00

modf.3

…

modf.c

Replace a proliferation of buggy MD implementations of modf() with a

2011-10-21 06:40:36 +00:00

mrand48.c

…

nftw.c

nftw(): POSIX says directories causing loops should be silently skipped.

2012-08-09 22:05:40 +00:00

nice.3

mdoc: remove end of line whitespace

2015-04-26 10:56:06 +00:00

nice.c

nice(): Put back old return value, keeping [EPERM] error.

2015-02-28 18:22:10 +00:00

nlist.3

…

nlist.c

We won't support a.out on arm64/aarch64. As such there will be no need to

2015-03-18 13:54:53 +00:00

nrand48.c

…

opendir.c

Fix some edge cases with rewinddir():

2014-07-11 16:16:26 +00:00

pause.3

…

pause.c

Reduce the size of the interposing table and amount of

2015-01-11 22:16:31 +00:00

pmadvise.c

The posix_madvise(3) and posix_fadvise(2) should return error on

2014-01-30 18:04:39 +00:00

popen.3

popen(): Add 'e' mode character to set close-on-exec on the new fd.

2013-05-20 17:31:18 +00:00

popen.c

popen(): Try to prevent inappropriate fd passing even if 'e' is not used.

2013-10-20 20:50:17 +00:00

posix_spawn_file_actions_addopen.3

Escape "Ed"

2015-04-26 10:52:37 +00:00

posix_spawn_file_actions_init.3

Escape "Ed"

2015-04-26 10:52:37 +00:00

posix_spawn.3

Escape "Ed"

2015-04-26 10:52:37 +00:00

posix_spawn.c

Switch libc from using _sig{procmask,action,suspend} symbols, which

2015-08-29 14:25:01 +00:00

posix_spawnattr_getflags.3

Escape "Ed"

2015-04-26 10:52:37 +00:00

posix_spawnattr_getpgroup.3

Escape "Ed"

2015-04-26 10:52:37 +00:00

posix_spawnattr_getschedparam.3

Escape "Ed"

2015-04-26 10:52:37 +00:00

posix_spawnattr_getschedpolicy.3

Escape "Ed"

2015-04-26 10:52:37 +00:00

posix_spawnattr_getsigdefault.3

Escape "Ed"

2015-04-26 10:52:37 +00:00

posix_spawnattr_getsigmask.3

Escape "Ed"

2015-04-26 10:52:37 +00:00

posix_spawnattr_init.3

Escape "Ed"

2015-04-26 10:52:37 +00:00

psignal.3

mdoc: terminate quoted strings.

2012-03-26 15:18:14 +00:00

psignal.c

…

pututxline.c

pututxline: Don't set errno=0 in subfunctions.

2013-04-17 21:08:15 +00:00

pw_scan.c

…

pw_scan.h

…

raise.3

raise(3): Note that this sends a signal to the current thread, not process.

2010-05-07 17:20:15 +00:00

raise.c

Reduce the size of the interposing table and amount of

2015-01-11 22:16:31 +00:00

rand48.3

Add the same warning to rand48(3) as to rand(3) and random(3).

2012-09-11 12:55:15 +00:00

rand48.h

…

readdir.c

Tweak seekdir, telldir and readdir so that when htere are deletes going on,

2015-05-05 14:52:33 +00:00

readpassphrase.3

Sync with OpenBSD, primarily better signal and terminal handling.

2010-11-13 10:38:06 +00:00

readpassphrase.c

Switch libc from using _sig{procmask,action,suspend} symbols, which

2015-08-29 14:25:01 +00:00

rewinddir.c

Tweak seekdir, telldir and readdir so that when htere are deletes going on,

2015-05-05 14:52:33 +00:00

rfork_thread.3

rfork_thread(3): Mark deprecated in favor of pthread_create(3).

2011-02-06 23:26:14 +00:00

scandir_b.c

Add support for some block functions that come from OS X. These are

2014-04-02 16:07:48 +00:00

scandir.3

Various mdoc fixes and a few EOL whitespace removals.

2014-12-21 12:36:36 +00:00

scandir.c

Add support for some block functions that come from OS X. These are

2014-04-02 16:07:48 +00:00

seed48.c

…

seekdir.c

Hide DIR definition by making it an opaque struct typedef.

2012-05-19 12:44:27 +00:00

sem_destroy.3

Don't reference sem(4) from the POSIX semaphore pages. POSIX semaphores

2014-10-24 19:55:49 +00:00

sem_getvalue.3

Don't reference sem(4) from the POSIX semaphore pages. POSIX semaphores

2014-10-24 19:55:49 +00:00

sem_init.3

Don't reference sem(4) from the POSIX semaphore pages. POSIX semaphores

2014-10-24 19:55:49 +00:00

sem_new.c

sem_post(): Fix and document semaphore value overflow error.

2015-01-28 22:42:56 +00:00

sem_open.3

Don't reference sem(4) from the POSIX semaphore pages. POSIX semaphores

2014-10-24 19:55:49 +00:00

sem_post.3

sem_post(): Fix and document semaphore value overflow error.

2015-01-28 22:42:56 +00:00

sem_timedwait.3

Don't reference sem(4) from the POSIX semaphore pages. POSIX semaphores

2014-10-24 19:55:49 +00:00

sem_wait.3

Don't reference sem(4) from the POSIX semaphore pages. POSIX semaphores

2014-10-24 19:55:49 +00:00

sem.c

In revision 231989, we pass a 16-bit clock ID into kernel, however

2012-02-25 02:12:17 +00:00

semctl.c

…

setdomainname.c

…

sethostname.c

…

setjmp.3

…

setjmperr.c

…

setmode.3

setmode(3): Make sure that setmode sets errno on failure.

2015-02-22 20:16:44 +00:00

setmode.c

Switch libc from using _sig{procmask,action,suspend} symbols, which

2015-08-29 14:25:01 +00:00

setproctitle.3

use .Mt to mark up email addresses consistently (part4)

2014-06-23 08:25:03 +00:00

setproctitle.c

Remove code to support the top of the stack layout for FreeBSD 1.x/2.x

2015-04-20 09:07:12 +00:00

setprogname.c

…

siginterrupt.3

Update xrefs from 4.3BSD to modern signal functions in various man pages.

2010-05-06 22:49:54 +00:00

siginterrupt.c

Switch libc from using _sig{procmask,action,suspend} symbols, which

2015-08-29 14:25:01 +00:00

siglist.c

Make sys_signame upper case.

2011-02-04 16:40:50 +00:00

signal.3

Document SIGLIBRT in signal(3); take a stab at the signal description as

2013-09-03 08:19:06 +00:00

signal.c

Switch libc from using _sig{procmask,action,suspend} symbols, which

2015-08-29 14:25:01 +00:00

sigsetops.3

…

sigsetops.c

…

sleep.3

Clarify text to be consistent with nanosleep(2),

2015-01-08 01:27:43 +00:00

sleep.c

Reduce the size of the interposing table and amount of

2015-01-11 22:16:31 +00:00

srand48.c

…

statvfs.3

use .Mt to mark up email addresses consistently (part4)

2014-06-23 08:25:03 +00:00

statvfs.c

…

stringlist.3

- sl_find does not modify 'name'

2013-04-23 13:03:03 +00:00

stringlist.c

Remove clause 3 and 4 from the license

2015-05-21 08:38:25 +00:00

strtofflags.3

…

strtofflags.c

Expand the use of stat(2) flags to allow storing some Windows/DOS

2013-08-21 23:04:48 +00:00

Symbol.map

Reduce the size of the interposing table and amount of

2015-01-11 22:16:31 +00:00

sysconf.3

sysconf(3): Correct the description of _SC_OPEN_MAX.

2013-04-26 21:43:42 +00:00

sysconf.c

Implement sysconf(_SC_GETGR_R_SIZE_MAX) and sysconf(_SC_GETPW_R_SIZE_MAX).

2014-07-09 19:12:18 +00:00

sysctl.3

Remove define and documentation for vm_pageout_algorithm missed in r253587

2013-07-26 02:00:06 +00:00

sysctl.c

Fix sysctl(3) so it returns the intended values for all mib names in

2015-07-06 01:42:12 +00:00

sysctlbyname.c

Eliminate redundant variable.

2012-12-12 15:27:33 +00:00

sysctlnametomib.c

Add proper const keywords to sysctl(3) parameters.

2010-02-21 13:57:02 +00:00

syslog.3

Add missing priority argument in example code in BUGS section.

2015-07-21 09:44:45 +00:00

syslog.c

Reinstitate send() after syslogd restarts.

2014-11-25 20:59:22 +00:00

tcgetpgrp.3

…

tcgetsid.3

mdoc: consistently spell our email addresses <foo@FreeBSD.org>

2010-05-19 08:57:53 +00:00

tcsendbreak.3

…

tcsetattr.3

Add a new libc function: cfmakesane(3).

2010-11-02 17:00:56 +00:00

tcsetpgrp.3

…

tcsetsid.3

…

telldir.c

Tweak the comment here some more. In particular, the previous opening

2015-05-06 17:23:42 +00:00

telldir.h

Tweak seekdir, telldir and readdir so that when htere are deletes going on,

2015-05-05 14:52:33 +00:00

termios.c

Fix known issues which blow up the process after dlopen("libthr.so")

2015-01-03 18:38:46 +00:00

time.3

Document CLOCK_SECOND, add cross-reference from time(3) to clock_gettime(2).

2009-12-29 14:29:08 +00:00

time.c

Use clock_gettime(CLOCK_SECOND) instead of gettimeofday(2) for

2009-12-29 12:47:47 +00:00

times.3

…

times.c

…

timezone.3

…

timezone.c

Replace index() and rindex() calls with strchr() and strrchr().

2012-01-03 18:51:58 +00:00

tls.c

Update jemalloc to version 4.0.0.

2015-08-18 00:21:25 +00:00

trivial-getcontextx.c

Remove duplicate copies of trivial getcontextx.c

2015-01-12 18:13:38 +00:00

ttyname.3

ttyname(3): Fix EBADF/ENOTTY error descriptions.

2014-07-18 21:29:59 +00:00

ttyname.c

ttyname_r(): Return actual error, not always [ENOTTY].

2015-02-01 22:50:33 +00:00

ttyslot.c

Simplify ttyslot(3).

2010-01-17 15:43:14 +00:00

tzset.3

Catch up with r130332 which changed the default timezone from GMT to UTC.

2009-11-17 16:29:39 +00:00

ualarm.3

Update xrefs from 4.3BSD to modern signal functions in various man pages.

2010-05-06 22:49:54 +00:00

ualarm.c

…

ucontext.3

Add API for obtaining extended machine context states that cannot be

2012-01-21 18:00:28 +00:00

ulimit.3

…

ulimit.c

ulimit(3): simplify.

2015-02-17 16:01:00 +00:00

uname.3

…

uname.c

Revert r202447 by re-exposing the old uname(3) function.

2010-01-19 23:07:12 +00:00

unvis-compat.c

Replace our implementation of the vis(3) and unvis(3) APIs with

2012-12-18 16:37:24 +00:00

usleep.3

…

usleep.c

Reduce the size of the interposing table and amount of

2015-01-11 22:16:31 +00:00

utime.3

…

utime.c

…

utxdb.c

Make utmpx(3) thread safe if we support TLS.

2012-03-23 08:26:31 +00:00

utxdb.h

Perform several small cleanups to the utmpx code.

2010-01-17 21:40:05 +00:00

valloc.3

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valloc.c

…

wait3.c

Reduce the size of the interposing table and amount of

2015-01-11 22:16:31 +00:00

wait.c

Reduce the size of the interposing table and amount of

2015-01-11 22:16:31 +00:00

waitid.c

Make wait6(2), waitid(3) and ppoll(2) cancellation points. The

2015-04-18 21:35:41 +00:00

waitpid.c

Reduce the size of the interposing table and amount of

2015-01-11 22:16:31 +00:00

wordexp.3

wordexp(): Improve some error codes.

2015-08-19 20:31:03 +00:00

wordexp.c

Switch libc from using _sig{procmask,action,suspend} symbols, which

2015-08-29 14:25:01 +00:00