forked from rpms/glibc
Revert libio change that causes crashes (#1732406)
This commit is contained in:
Florian Weimer
parent
8797f87802
commit
c96359dd1c
231
glibc-rh1732406.patch
Normal file
231
glibc-rh1732406.patch
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@ -0,0 +1,231 @@
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Revert "libio: Fix gconv-related memory leak [BZ #24583]"
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This reverts commit 7e740ab2e7be7d83b75513aa406e0b10875f7f9c.
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It causes a regression:
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https://sourceware.org/bugzilla/show_bug.cgi?id=24677
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diff --git a/libio/Makefile b/libio/Makefile
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index 6e594b8ec5fbca94..66ffab43201638ef 100644
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--- a/libio/Makefile
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+++ b/libio/Makefile
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@@ -66,11 +66,7 @@ tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \
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tst-fwrite-error tst-ftell-partial-wide tst-ftell-active-handler \
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tst-ftell-append tst-fputws tst-bz22415 tst-fgetc-after-eof \
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tst-sprintf-ub tst-sprintf-chk-ub tst-bz24051 tst-bz24153 \
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- tst-wfile-sync tst-wfile-gconv
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-
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-# This test tests interaction with the gconv cache. Setting
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-# GCONV_CACHE during out-of-container testing disables the cache.
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-tests-container += tst-wfile-ascii
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+ tst-wfile-sync
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tests-internal = tst-vtables tst-vtables-interposed tst-readline
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@@ -173,12 +169,10 @@ test-fmemopen-ENV = MALLOC_TRACE=$(objpfx)test-fmemopen.mtrace
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tst-fopenloc-ENV = MALLOC_TRACE=$(objpfx)tst-fopenloc.mtrace
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tst-bz22415-ENV = MALLOC_TRACE=$(objpfx)tst-bz22415.mtrace
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tst-bz24228-ENV = MALLOC_TRACE=$(objpfx)tst-bz24228.mtrace
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-tst-wfile-gconv-ENV = MALLOC_TRACE=$(objpfx)tst-wfile-gconv.mtrace
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generated += test-fmemopen.mtrace test-fmemopen.check
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generated += tst-fopenloc.mtrace tst-fopenloc.check
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generated += tst-bz22415.mtrace tst-bz22415.check
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-generated += tst-wfile-gconv.mtrace tst-wfile-gconv.check
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aux := fileops genops stdfiles stdio strops
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@@ -194,8 +188,7 @@ shared-only-routines = oldiofopen oldiofdopen oldiofclose oldfileops \
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ifeq ($(run-built-tests),yes)
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tests-special += $(objpfx)test-freopen.out $(objpfx)test-fmemopen-mem.out \
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- $(objpfx)tst-bz22415-mem.out \
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- $(objpfx)tst-wfile-gconv-mem.out
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+ $(objpfx)tst-bz22415-mem.out
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ifeq (yes,$(build-shared))
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# Run tst-fopenloc-cmp.out and tst-openloc-mem.out only if shared
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# library is enabled since they depend on tst-fopenloc.out.
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@@ -229,7 +222,6 @@ $(objpfx)tst-ungetwc2.out: $(gen-locales)
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$(objpfx)tst-widetext.out: $(gen-locales)
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$(objpfx)tst_wprintf2.out: $(gen-locales)
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$(objpfx)tst-wfile-sync.out: $(gen-locales)
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-$(objpfx)tst-wfile-gconv.out: $(gen-locales)
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endif
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$(objpfx)test-freopen.out: test-freopen.sh $(objpfx)test-freopen
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@@ -258,6 +250,3 @@ $(objpfx)tst-bz24228-mem.out: $(objpfx)tst-bz24228.out
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$(common-objpfx)malloc/mtrace $(objpfx)tst-bz24228.mtrace > $@; \
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$(evaluate-test)
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-$(objpfx)tst-wfile-gconv-mem.out: $(objpfx)tst-wfile-gconv.out
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- $(common-objpfx)malloc/mtrace $(objpfx)tst-wfile-gconv.mtrace > $@; \
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- $(evaluate-test)
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diff --git a/libio/iofclose.c b/libio/iofclose.c
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index c03c6cf57cafd2bb..8a80dd0b78a50fce 100644
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--- a/libio/iofclose.c
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+++ b/libio/iofclose.c
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@@ -26,8 +26,8 @@
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#include "libioP.h"
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#include <stdlib.h>
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+#include "../iconv/gconv_int.h"
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#include <shlib-compat.h>
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-#include <wcsmbs/wcsmbsload.h>
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int
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_IO_new_fclose (FILE *fp)
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@@ -60,14 +60,11 @@ _IO_new_fclose (FILE *fp)
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/* This stream has a wide orientation. This means we have to free
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the conversion functions. */
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struct _IO_codecvt *cc = fp->_codecvt;
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- struct gconv_fcts conv =
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- {
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- .towc = cc->__cd_in.__cd.__steps,
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- .towc_nsteps = cc->__cd_in.__cd.__nsteps,
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- .tomb = cc->__cd_out.__cd.__steps,
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- .tomb_nsteps = cc->__cd_out.__cd.__nsteps,
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- };
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- __wcsmbs_close_conv (&conv);
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+
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+ __libc_lock_lock (__gconv_lock);
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+ __gconv_release_step (cc->__cd_in.__cd.__steps);
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+ __gconv_release_step (cc->__cd_out.__cd.__steps);
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+ __libc_lock_unlock (__gconv_lock);
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}
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else
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{
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diff --git a/libio/tst-wfile-ascii.c b/libio/tst-wfile-ascii.c
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deleted file mode 100644
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index 7514289a7bb79339..0000000000000000
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--- a/libio/tst-wfile-ascii.c
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+++ /dev/null
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@@ -1,56 +0,0 @@
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-/* Test ASCII gconv module followed by cache initialization.
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- Copyright (C) 2019 Free Software Foundation, Inc.
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- This file is part of the GNU C Library.
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-
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- The GNU C Library is free software; you can redistribute it and/or
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- modify it under the terms of the GNU Lesser General Public
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- License as published by the Free Software Foundation; either
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- version 2.1 of the License, or (at your option) any later version.
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-
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- The GNU C Library is distributed in the hope that it will be useful,
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- but WITHOUT ANY WARRANTY; without even the implied warranty of
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- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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- Lesser General Public License for more details.
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-
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- You should have received a copy of the GNU Lesser General Public
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- License along with the GNU C Library; if not, see
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- <http://www.gnu.org/licenses/>. */
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-
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-#include <stdlib.h>
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-#include <support/check.h>
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-#include <support/support.h>
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-#include <support/xstdio.h>
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-#include <wchar.h>
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-
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-static int
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-do_test (void)
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-{
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- /* The test-in-container framework sets these environment variables.
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- The presence of GCONV_PATH invalidates this test. */
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- unsetenv ("GCONV_PATH");
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- unsetenv ("LOCPATH");
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-
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- /* Create the gconv module cache. iconvconfig is in /sbin, which is
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- not on PATH. */
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- {
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- char *iconvconfig = xasprintf ("%s/iconvconfig", support_sbindir_prefix);
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- TEST_COMPARE (system (iconvconfig), 0);
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- }
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-
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- /* Use built-in ASCII gconv module, without triggering cache
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- initialization. */
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- FILE *fp1 = xfopen ("/dev/zero", "r");
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- TEST_COMPARE (fwide (fp1, 1), 1);
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-
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- /* Use non-ASCII gconv module and trigger gconv cache
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- initialization. */
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- FILE *fp2 = xfopen ("/dev/zero", "r,ccs=UTF-8");
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- TEST_COMPARE (fwide (fp2, 0), 1);
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-
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- xfclose (fp1);
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- xfclose (fp2);
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-
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- return 0;
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-}
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-
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-#include <support/test-driver.c>
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diff --git a/libio/tst-wfile-gconv.c b/libio/tst-wfile-gconv.c
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deleted file mode 100644
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index de603b32d2a1a58b..0000000000000000
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--- a/libio/tst-wfile-gconv.c
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+++ /dev/null
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@@ -1,36 +0,0 @@
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-/* Test that non-built-in gconv modules do not cause memory leak (bug 24583).
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- Copyright (C) 2019 Free Software Foundation, Inc.
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- This file is part of the GNU C Library.
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-
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- The GNU C Library is free software; you can redistribute it and/or
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- modify it under the terms of the GNU Lesser General Public
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- License as published by the Free Software Foundation; either
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- version 2.1 of the License, or (at your option) any later version.
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-
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- The GNU C Library is distributed in the hope that it will be useful,
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- but WITHOUT ANY WARRANTY; without even the implied warranty of
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- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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- Lesser General Public License for more details.
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-
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- You should have received a copy of the GNU Lesser General Public
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- License along with the GNU C Library; if not, see
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- <http://www.gnu.org/licenses/>. */
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-
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-#include <locale.h>
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-#include <mcheck.h>
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-#include <support/check.h>
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-#include <support/xstdio.h>
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-
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-static int
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-do_test (void)
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-{
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- mtrace ();
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-
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- TEST_VERIFY_EXIT (setlocale (LC_ALL, "ja_JP.EUC-JP") != NULL);
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- xfclose (xfopen ("/etc/passwd", "r,ccs=UTF-8"));
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- xfclose (xfopen ("/etc/passwd", "r"));
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-
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- return 0;
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-}
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-
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-#include <support/test-driver.c>
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diff --git a/wcsmbs/wcsmbsload.c b/wcsmbs/wcsmbsload.c
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index 840d4abc440e1076..6648365d822bc167 100644
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--- a/wcsmbs/wcsmbsload.c
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+++ b/wcsmbs/wcsmbsload.c
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@@ -279,13 +279,3 @@ _nl_cleanup_ctype (struct __locale_data *locale)
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free ((char *) data);
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}
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}
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-
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-/* Free the specified conversion functions (but not CONV itself). */
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-void
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-__wcsmbs_close_conv (struct gconv_fcts *conv)
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-{
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- if (conv->towc != &to_wc)
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- __gconv_close_transform (conv->towc, conv->towc_nsteps);
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- if (conv->tomb != &to_mb)
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- __gconv_close_transform (conv->tomb, conv->tomb_nsteps);
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-}
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diff --git a/wcsmbs/wcsmbsload.h b/wcsmbs/wcsmbsload.h
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index c2fffbd914f663e6..6ccad4b3ba62b500 100644
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--- a/wcsmbs/wcsmbsload.h
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+++ b/wcsmbs/wcsmbsload.h
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@@ -51,7 +51,6 @@ extern int __wcsmbs_named_conv (struct gconv_fcts *copy, const char *name)
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/* Function used for the `private.cleanup' hook. */
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extern void _nl_cleanup_ctype (struct __locale_data *) attribute_hidden;
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-extern void __wcsmbs_close_conv (struct gconv_fcts *conv) attribute_hidden;
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#include <iconv/gconv_int.h>
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@ -87,7 +87,7 @@
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Summary: The GNU libc libraries
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Name: glibc
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Version: %{glibcversion}
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Release: 33%{?dist}
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Release: 34%{?dist}
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# In general, GPLv2+ is used by programs, LGPLv2+ is used for
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# libraries.
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@ -159,6 +159,7 @@ Patch28: glibc-rh1615608.patch
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# In progress upstream submission for nscd.conf changes:
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# https://www.sourceware.org/ml/libc-alpha/2019-03/msg00436.html
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Patch31: glibc-fedora-nscd-warnings.patch
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Patch32: glibc-rh1732406.patch
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##############################################################################
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# Continued list of core "glibc" package information:
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@ -2015,6 +2016,9 @@ fi
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%files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
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%changelog
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* Tue Jul 23 2019 Florian Weimer <fweimer@redhat.com> - 2.29.9000-34
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- Revert libio change that causes crashes (#1732406)
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* Mon Jul 22 2019 DJ Delorie <dj@redhat.com> - 2.29.9000-33
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- Auto-sync with upstream branch master,
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commit dcf36bcad3f283f77893d3b157ef7bb2c99419f2.
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