Warner Losh 02ebbc781f swab: Fix implementation to support overlapping copies ... A number of image processing packages assume that swab() can handle to and from being the same. However, POSIX.1 states that overlapping buffers produces undefined results. Our old implementation would produce coherent results, but the recent change to the musl-inspired code does not. Since there's complaints in the forums for these image processing packages for musl and now FreeBSD, update the algorithm to just read a word at a time and bswap16 the results. All FreeBSD's architecutres support unaligned access in userland, and swab is not used in the kernel (g_part_apm has its own copy), so opt for even simpler code that's easier to understand. This makes the overlapping behavior match i386 again, since its assembler routine for swab handles overlapping correctly. PR: 283698 Sponsored by: Netflix Reviewed by: nwhitehorn Differential Revision: https://reviews.freebsd.org/D48259		2025-01-06 16:46:05 -07:00
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aarch64	libc/aarch64: Remove an unneeded weak symbol	2024-08-21 10:16:10 +00:00
amd64	lib/libc/amd64/string: fix overread condition in memccpy	2024-07-29 21:36:10 +02:00
arm	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
capability	cap_rights_is_empty: add MLINK	2024-12-02 15:35:40 -05:00
compat-43	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
csu	libc/csu: Unify INIT_RELOCS across architectures	2024-10-19 00:48:52 +01:00
db	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
gdtoa	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
gen	libc: lib_malloc_aligned(): add a missing NULL check	2024-12-08 11:14:36 -08:00
gmon	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
i386	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
iconv	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
include	libc, libthr: coordinate stubs for pthread_{suspend,resume}_all_np	2024-11-13 20:48:05 -06:00
inet	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
isc	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
locale	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
md	libmd, kern, stand: consolidate md5 implementations (NFC)	2024-09-29 22:34:18 -05:00
nameser	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
net	manuals: Remove trailing spaces	2024-11-04 11:26:14 -04:00
nls	libc: remove some XXX for russian translations of errnos	2024-11-03 18:59:16 +02:00
posix1e	manuals: Fix "missing end of block" errors	2024-10-07 15:40:58 -03:00
powerpc	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
powerpc64	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
powerpcspe	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
quad	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
regex	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
resolv	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
riscv	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
rpc	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
secure	libmd, kern, stand: consolidate md5 implementations (NFC)	2024-09-29 22:34:18 -05:00
softfloat	libc/softfloat: we don't export _fp[gs]et* symbols	2024-03-13 20:35:41 +00:00
stdio	fgets.3: document gets_s() __STDC_WANT_LIB_EXT1__	2024-12-06 13:20:19 -05:00
stdlib	jemalloc: Move generated files into lib/libc tree	2024-12-13 16:04:39 -07:00
stdtime	strptime: Fix day-of-week calculation.	2024-12-09 13:38:22 +01:00
string	swab: Fix implementation to support overlapping copies	2025-01-06 16:46:05 -07:00
sys	libc: switch to __weak_symbol for fortified interpose stubs	2024-07-16 00:12:28 -05:00
tests	Fix lib/libc/nss/getgr_test with large numbers of groups	2025-01-01 13:23:47 -07:00
uuid	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
x86/gen	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
xdr	libc/xdr: remove bogus lseek(2) for xdr streams	2025-01-06 08:22:14 -08:00
yp	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
libc.ldscript	Remove $FreeBSD$: one-line .c comment pattern	2023-08-16 11:54:29 -06:00
libc_nossp.ldscript	Remove $FreeBSD$: one-line .c comment pattern	2023-08-16 11:54:29 -06:00
Makefile	libmd, kern, stand: consolidate md5 implementations (NFC)	2024-09-29 22:34:18 -05:00
Makefile.depend	Update Makefile.depend files	2024-10-14 10:26:17 -07:00
Makefile.depend.options	Remove $FreeBSD$: one-line sh pattern	2023-08-16 11:55:03 -06:00
Versions.def	Create namespace for the symbols added during 15-CURRENT cycle	2023-09-22 10:16:29 +02:00