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Carlos O'Donell 87701a58e2 strcoll: Remove incorrect STRDIFF-based optimization (Bug 18589).
The optimization introduced in commit
f13c2a8dff, causes regressions in
sorting for languages that have digraphs that change sort order, like
cs_CZ which sorts ch between h and i.

My analysis shows the fast-forwarding optimization in STRCOLL advances
through a digraph while possibly stopping in the middle which results
in a subsequent skipping of the digraph and incorrect sorting. The
optimization is incorrect as implemented and because of that I'm
removing it for 2.23, and I will also commit this fix for 2.22 where
it was originally introduced.

This patch reverts the optimization, introduces a new bug-strcoll2.c
regression test that tests both cs_CZ.UTF-8 and da_DK.ISO-8859-1 and
ensures they sort one digraph each correctly. The optimization can't be
applied without regressing this test.

Checked on x86_64, bug-strcoll2.c fails without this patch and passes
after. This will also get a fix on 2.22 which has the same bug.
2015-10-08 16:41:45 -04:00
argp
assert
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bits
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dlfcn
elf [BZ #17250] Fix static dlopen default library search path 2015-09-25 09:37:12 +01:00
gmon
gnulib
grp Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
gshadow Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
hesiod
hurd
iconv Fix BZ #19012 -- iconv_open leaks memory on error path. 2015-10-05 20:03:48 -07:00
iconvdata iconvdata: Add missing const to lookup table definitions 2015-10-07 10:50:23 +02:00
include Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
inet
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locale strcoll: Remove incorrect STRDIFF-based optimization (Bug 18589). 2015-10-08 16:41:45 -04:00
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mach Add missing __mach_host_self_ symbol in Versions 2015-09-22 02:02:20 +02:00
malloc malloc: Consistently apply trim_threshold to all heaps (Bug 17195) 2015-10-07 22:21:36 -04:00
manual Fix manual argument order for posix_fallocate64 (Bug 19086). 2015-10-07 14:10:43 -04:00
math Correct "inexact" expectations in lround, llround tests. 2015-10-08 17:24:49 +00:00
mathvec
misc
nis nss_nis: Do not call malloc_usable_size [BZ #10432] 2015-10-06 14:03:35 +02:00
nptl Add a test case for C++11 thread_local support 2015-10-06 21:27:55 +02:00
nptl_db
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nss Fix i386 build after put*ent hardening changes. 2015-10-02 11:14:19 +00:00
po
posix
pwd Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
resolv Fix several build failures with GCC6 due to unused static variables. 2015-09-18 20:42:54 +01:00
resource
rt
scripts Remove scripts/rpm2dynsym.sh. 2015-10-06 20:45:47 +00:00
setjmp
shadow Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
signal
socket
soft-fp
stdio-common stdio-common/tst-printf-bz18872.sh: Use attribute optimize instead of 2015-10-07 23:17:33 -07:00
stdlib Harden tls_dtor_list with pointer mangling [BZ #19018] 2015-10-06 13:22:56 +02:00
streams
string strcoll: Remove incorrect STRDIFF-based optimization (Bug 18589). 2015-10-08 16:41:45 -04:00
sunrpc
sysdeps Remove configure tests for AVX support. 2015-10-08 15:59:32 +00:00
sysvipc
termios
time Fix BZ #18985 -- out of range data to strftime() causes a segfault 2015-09-26 13:27:48 -07:00
timezone Update timezone/Makefile to use -Wno-unused-variable 2015-10-07 15:04:49 -07:00
wcsmbs strcoll: Remove incorrect STRDIFF-based optimization (Bug 18589). 2015-10-08 16:41:45 -04:00
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INSTALL timezone: add a configure flag to disable program install 2015-09-18 19:39:46 -04:00
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aclocal.m4
config.h.in Remove configure tests for AVX support. 2015-10-08 15:59:32 +00:00
config.make.in Add a test case for C++11 thread_local support 2015-10-06 21:27:55 +02:00
configure Add a test case for C++11 thread_local support 2015-10-06 21:27:55 +02:00
configure.ac Add a test case for C++11 thread_local support 2015-10-06 21:27:55 +02:00
cppflags-iterator.mk
extra-lib.mk
extra-modules.mk
gen-locales.mk
libc-abis
o-iterator.mk
shlib-versions
test-skeleton.c
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