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78c2a9806e
freebsd-nq/lib/libc
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Conrad Meyer 78c2a9806e kern_poll: Restore explanatory comment removed in r177374 
The comment isn't stale.  The check is bogus in the sense that poll(2)
does not require pollfd entries to be unique in fd space, so there is no
reason there cannot be more pollfd entries than open or even allowed
fds.  The check is mostly a seatbelt against accidental misuse or
abuse.  FD_SETSIZE, while usually unrelated to poll, is used as an
arbitrary floor for systems with very low kern.maxfilesperproc.

Additionally, document this possible EINVAL condition in the poll.2
manual.

No functional change.

Reviewed by:	markj
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D17671
2018-11-01 23:46:23 +00:00
..
aarch64 Don't export _end on arm64 and riscv. 2018-06-01 23:42:10 +00:00
amd64 Convert amd64_get/set_fs/gsbase to ifunc. 2018-10-30 00:11:30 +00:00
arm Revert r336773: it removed too much. 2018-07-27 21:25:01 +00:00
capability Replace dot-dot relative pathing with SRCTOP-relative paths where possible 2017-01-20 03:23:24 +00:00
compat-43 General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
db Remove "All rights reserved" from my files. 2018-05-10 06:41:08 +00:00
gdtoa libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
gen Add link to the setproctitle_fast function. 2018-10-20 22:25:57 +00:00
gmon mcount: tidy up ANSIfication 2018-10-20 22:39:35 +00:00
i386 amd64: depessimize userspace memcpy/memmove/bcopy 2018-09-17 15:49:35 +00:00
iconv libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
include Update userland arc4random() with OpenBSD's Chacha20 based arc4random(). 2018-08-19 17:40:50 +00:00
inet libc: fix cases of undefined behavior. 2018-08-07 15:24:19 +00:00
isc SPDX: more ISC-related files. 2017-12-08 17:52:53 +00:00
locale Add -b/-l options to localedef(1) to specify output endianness and use 2018-10-20 20:51:05 +00:00
md Replace dot-dot relative pathing with SRCTOP-relative paths where possible 2017-01-20 03:23:24 +00:00
mips Reimplement brk() and sbrk() to avoid the use of _end. 2018-06-04 19:35:15 +00:00
nameser SPDX: license IDs for some ISC-related files. 2017-12-08 15:57:29 +00:00
net Prevent flex(1) from generating calls to isatty(3) - and, in turn, 2018-10-15 19:48:36 +00:00
nls Use current locale (f.e. set by thread). It was global locale always 2016-08-24 16:44:27 +00:00
posix1e Move mac.conf to lib/libc/posix1e/ 2018-09-18 01:40:37 +00:00
powerpc Reimplement brk() and sbrk() to avoid the use of _end. 2018-06-04 19:35:15 +00:00
powerpc64 Reimplement brk() and sbrk() to avoid the use of _end. 2018-06-04 19:35:15 +00:00
powerpcspe Fix fabs(3) for powerpcspe, this time for real 2018-07-26 14:42:20 +00:00
quad ANSIfy libc/quad 2018-10-21 00:20:40 +00:00
regex regex/engine.c: error: variable 'dp' set but not used 2018-07-14 09:29:45 +00:00
resolv Allow the use of TCP instead of UDP for queries by setting options usevc 2018-08-16 13:18:40 +00:00
riscv Fix setjmp for RISC-V: 2018-07-23 09:54:28 +00:00
rpc Fix CONFS to append the value in this case. 2018-09-18 01:38:44 +00:00
secure Carefully update stack guard bytes inside __guard_setup(). 2018-04-24 15:59:39 +00:00
softfloat Add implementations for clog(3), clogf(3), and clog(3). 2018-05-13 09:54:34 +00:00
sparc64 Reimplement brk() and sbrk() to avoid the use of _end. 2018-06-04 19:35:15 +00:00
stdio Follow up on r331936. gets_s(3) will also fail in the same way that 2018-10-23 14:16:02 +00:00
stdlib Provide set_constraint_handler_s(3) man page. 2018-08-19 14:39:57 +00:00
stdtime strptime: fix parsing of tm_year when both %C and %y appear in the 2018-10-17 14:51:43 +00:00
string Avoid OOB reads in memmem(3). 2018-10-15 20:20:57 +00:00
sys kern_poll: Restore explanatory comment removed in r177374 2018-11-01 23:46:23 +00:00
tests Connect libc/tests/time to the build, adding test cases for strptime() 2018-10-30 02:37:23 +00:00
uuid libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
x86/sys Fix a regression in r321608. 2017-08-13 14:42:23 +00:00
xdr General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
yp libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
libc_nossp.ldscript Add different libc ldscript: the one without libssp -- 2016-10-12 13:19:21 +00:00
libc.ldscript
Makefile Move libc linker ifunc test to build target only 2018-09-24 13:42:46 +00:00
Makefile.depend DIRDEPS_BUILD: Regenerate without local dependencies. 2016-02-24 17:20:11 +00:00
Versions.def Create namespace for the symbols added during 12-CURRENT cycle. 2016-08-06 13:28:58 +00:00