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opnsense-src/lib/libc
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Alex Richardson 8dc9d6a7b0 libc/qsort: Don't allow interposing recursive calls 
This causes problems when using ASAN with a runtime older than 12.0 since
the intercept does not expect qsort() to call itself using an interposable
function call. This results in infinite recursion and stack exhaustion
when a binary compiled with -fsanitize=address calls qsort.
See also https://bugs.llvm.org/show_bug.cgi?id=46832 and
https://reviews.llvm.org/D84509 (ASAN runtime patch).

To prevent this problem, this patch uses a static helper function
for the actual qsort() implementation. This prevents interposition and
allows for direct calls. As a nice side-effect, we can also move the
qsort_s checks to the top-level function and out of the recursive calls.

Reviewed By:	kib
Differential Revision: https://reviews.freebsd.org/D28133

(cherry picked from commit cbcfe28f9d)
2021-03-17 09:46:58 +00:00
..
aarch64 Fix initial exec TLS mode for dynamically loaded shared objects. 2019-03-29 17:52:57 +00:00
amd64 amd64: move memcmp checks upfront 2021-02-04 17:59:10 +00:00
arm arm/ffs.S: remove stale comment. 2019-12-28 02:11:41 +00:00
capability Fix a few mandoc issues 2020-10-09 19:12:44 +00:00
compat-43 Adjust history, info source from v1's manuals 2019-09-04 13:44:46 +00:00
db Remove the SYMVER build option. 2020-04-30 22:08:40 +00:00
gdtoa Remove sparc64 specific parts of libc. 2020-02-26 18:55:09 +00:00
gen Remove __NO_TLS. 2021-03-02 02:49:42 +02:00
gmon mcount: tidy up ANSIfication 2018-10-20 22:39:35 +00:00
i386 remove obsolete i386 MD memchr implementation 2019-09-25 16:49:22 +00:00
iconv Remove the SYMVER build option. 2020-04-30 22:08:40 +00:00
include libthr: wrap pdfork(2), same as fork(2). 2021-01-11 22:59:52 +02:00
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 Remove __NO_TLS. 2021-03-02 02:49:42 +02:00
md Replace dot-dot relative pathing with SRCTOP-relative paths where possible 2017-01-20 03:23:24 +00:00
mips mips: fix some mcount nits 2019-09-02 01:55:55 +00:00
nameser Bounds check again after advancing cp, otherwise we have a possible 2019-09-05 19:35:30 +00:00
net libc: Fix most issues reported by mandoc 2020-12-19 14:54:28 +00:00
nls Implement strerror_l(). 2020-12-16 09:02:09 +00:00
posix1e Drop "All rights reserved" from all my stuff. This includes 2020-10-28 13:46:11 +00:00
powerpc [PowerPC] [PowerPCSPE] Fix multiple issues in fpsetmask(). 2021-03-08 12:39:33 -06:00
powerpc64 [PowerPC64] Fix multiple issues in fpsetmask(). 2021-03-08 12:40:11 -06:00
powerpcspe [PowerPC] [PowerPCSPE] Fix multiple issues in fpsetmask(). 2021-03-08 12:39:33 -06:00
quad Add casts and L suffixes to libc quad support, to work around various 2020-02-17 20:14:59 +00:00
regex libc: regex: rework unsafe pointer arithmetic 2021-01-08 13:58:35 -06:00
resolv Rather than using the legacy IP struct fields in the union for the 2019-06-04 20:53:35 +00:00
riscv Build lib/msun tests with compiler builtins disabled 2021-03-09 21:17:10 +01:00
rpc libc: fix buffer overrun in getrpcport(3) 2021-03-02 18:43:26 +00:00
secure Remove the SYMVER build option. 2020-04-30 22:08:40 +00:00
softfloat Add implementations for clog(3), clogf(3), and clog(3). 2018-05-13 09:54:34 +00:00
stdio libc: try to skip memcpy in _gettemp 2021-02-01 12:39:15 +00:00
stdlib libc/qsort: Don't allow interposing recursive calls 2021-03-17 09:46:58 +00:00
stdtime strptime: make %k and %l specifiers match their description in 2018-11-03 23:37:13 +00:00
string Remove __NO_TLS. 2021-03-02 02:49:42 +02:00
sys open(2): Remove O_BENEATH and AT_BENEATH 2021-03-04 21:10:44 +02:00
tests AArch64: Don't set flush-subnormals-to-zero flag on startup 2021-03-17 09:45:56 +00:00
uuid libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
x86 x86: switch vdso TSC timecounter to RDTSCP on AMD Zen CPUs 2021-01-21 14:55:31 +02:00
xdr typo: s/impelmentation/implementation/. 2020-02-07 15:14:29 +00:00
yp Increase the size of the send and receive buffers for YP client rpc 2019-09-16 06:42:01 +00:00
libc.ldscript Attempt to move the POSIX iconv* symbols out of runtime linker space. 2013-11-17 22:52:17 +00:00
libc_nossp.ldscript Add different libc ldscript: the one without libssp -- 2016-10-12 13:19:21 +00:00
Makefile [PowerPC64LE] Use a shared LIBC_ARCH for powerpc64le. 2020-09-23 00:21:51 +00:00
Makefile.depend Update Makefile.depend files 2019-12-11 17:37:53 +00:00
Makefile.depend.options Update libssp paths in various Makefile.depend* files 2020-01-06 18:15:55 +00:00
Versions.def Create namespace for the symbols added during 13-CURRENT cycle. 2018-11-12 19:12:14 +00:00