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Accepting request 720569 from home:Andreas_Schwab:Factory

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- Update to glibc 2.30
  * Unicode 12.1.0 Support
  * The dynamic linker accepts the --preload argument to preload shared
    objects
  * The twalk_r function has been added
  * On Linux, the getdents64, gettid, and tgkill functions have been added
  * Minguo (Republic of China) calendar support has been added
  * The entry for the new Japanese era has been added
  * Memory allocation functions malloc, calloc, realloc, reallocarray, valloc,
    pvalloc, memalign, and posix_memalign fail now with total object size
    larger than PTRDIFF_MAX
  * The dynamic linker no longer refuses to load objects which reference
    versioned symbols whose implementation has moved to a different soname
    since the object has been linked
  * Add new POSIX-proposed pthread_cond_clockwait, pthread_mutex_clocklock,
    pthread_rwlock_clockrdlock, pthread_rwlock_clockwrlock and sem_clockwait
    functions
  * On AArch64 the GNU IFUNC resolver call ABI changed
  * The copy_file_range function fails with ENOSYS if the kernel does not
    support the system call of the same name
  * The functions clock_gettime, clock_getres, clock_settime,
    clock_getcpuclockid, clock_nanosleep were removed from the librt library
    for new applications (on architectures which had them)
  * The obsolete and never-implemented XSI STREAMS header files <stropts.h>
    and <sys/stropts.h> have been removed
  * Support for the "inet6" option in /etc/resolv.conf and the RES_USE_INET6
    resolver flag (deprecated in glibc 2.25) have been removed
  * The obsolete RES_INSECURE1 and RES_INSECURE2 option flags for the DNS stub
    resolver have been removed from <resolv.h>
  * With --enable-bind-now, installed programs are now linked with the

OBS-URL: https://build.opensuse.org/request/show/720569
OBS-URL: https://build.opensuse.org/package/show/Base:System/glibc?expand=0&rev=535
This commit is contained in:
Andreas Schwab 2019-08-02 10:32:26 +00:00 committed by Git OBS Bridge
parent c331c761b9
commit 5a64f33a11
28 changed files with 121 additions and 3187 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

114
add-new-Fortran-vector-math-header-file.patch
View File

@ -1,114 +0,0 @@
2019-03-07 Martin Liska <mliska@suse.cz>
* math/Makefile: Change location where math-vector-fortran.h is
installed.
* math/finclude/math-vector-fortran.h: Move from bits/math-vector-fortran.h.
* sysdeps/x86/fpu/finclude/math-vector-fortran.h: Move
from sysdeps/x86/fpu/bits/math-vector-fortran.h.
* scripts/check-installed-headers.sh: Skip Fortran header files.
2019-02-20 Martin Liska <mliska@suse.cz>
* math/Makefile: Install math-vector-fortran.h.
* bits/math-vector-fortran.h: New file.
* sysdeps/x86/fpu/bits/math-vector-fortran.h: New file.
Index: glibc-2.29/math/Makefile
===================================================================
--- glibc-2.29.orig/math/Makefile
+++ glibc-2.29/math/Makefile
@@ -26,6 +26,7 @@ headers := math.h bits/mathcalls.h bits
fpu_control.h complex.h bits/cmathcalls.h fenv.h \
bits/fenv.h bits/fenvinline.h bits/mathdef.h tgmath.h \
bits/math-finite.h bits/math-vector.h \
+ finclude/math-vector-fortran.h \
bits/libm-simd-decl-stubs.h bits/iscanonical.h \
bits/flt-eval-method.h bits/fp-fast.h bits/fp-logb.h \
bits/long-double.h bits/mathcalls-helper-functions.h \
Index: glibc-2.29/math/finclude/math-vector-fortran.h
===================================================================
--- /dev/null
+++ glibc-2.29/math/finclude/math-vector-fortran.h
@@ -0,0 +1,19 @@
+! Platform-specific declarations of SIMD math functions for Fortran. -*- f90 -*-
+! Copyright (C) 2019 Free Software Foundation, Inc.
+! This file is part of the GNU C Library.
+!
+! The GNU C Library is free software; you can redistribute it and/or
+! modify it under the terms of the GNU Lesser General Public
+! License as published by the Free Software Foundation; either
+! version 2.1 of the License, or (at your option) any later version.
+!
+! The GNU C Library is distributed in the hope that it will be useful,
+! but WITHOUT ANY WARRANTY; without even the implied warranty of
+! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+! Lesser General Public License for more details.
+!
+! You should have received a copy of the GNU Lesser General Public
+! License along with the GNU C Library; if not, see
+! <http://www.gnu.org/licenses/>.
+
+! No SIMD math functions are available for this platform.
Index: glibc-2.29/scripts/check-installed-headers.sh
===================================================================
--- glibc-2.29.orig/scripts/check-installed-headers.sh
+++ glibc-2.29/scripts/check-installed-headers.sh
@@ -84,6 +84,10 @@ for header in "$@"; do
(sys/elf.h)
continue;;
+ # Skip Fortran headers.
+ (finclude/*)
+ continue;;
+
# sys/sysctl.h is unsupported for x32.
(sys/sysctl.h)
case "$is_x32" in
Index: glibc-2.29/sysdeps/x86/fpu/finclude/math-vector-fortran.h
===================================================================
--- /dev/null
+++ glibc-2.29/sysdeps/x86/fpu/finclude/math-vector-fortran.h
@@ -0,0 +1,43 @@
+! Platform-specific declarations of SIMD math functions for Fortran. -*- f90 -*-
+! Copyright (C) 2019 Free Software Foundation, Inc.
+! This file is part of the GNU C Library.
+!
+! The GNU C Library is free software; you can redistribute it and/or
+! modify it under the terms of the GNU Lesser General Public
+! License as published by the Free Software Foundation; either
+! version 2.1 of the License, or (at your option) any later version.
+!
+! The GNU C Library is distributed in the hope that it will be useful,
+! but WITHOUT ANY WARRANTY; without even the implied warranty of
+! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+! Lesser General Public License for more details.
+!
+! You should have received a copy of the GNU Lesser General Public
+! License along with the GNU C Library; if not, see
+! <http://www.gnu.org/licenses/>.
+
+!GCC$ builtin (cos) attributes simd (notinbranch) if('x86_64')
+!GCC$ builtin (cosf) attributes simd (notinbranch) if('x86_64')
+!GCC$ builtin (sin) attributes simd (notinbranch) if('x86_64')
+!GCC$ builtin (sinf) attributes simd (notinbranch) if('x86_64')
+!GCC$ builtin (sincos) attributes simd (notinbranch) if('x86_64')
+!GCC$ builtin (sincosf) attributes simd (notinbranch) if('x86_64')
+!GCC$ builtin (log) attributes simd (notinbranch) if('x86_64')
+!GCC$ builtin (logf) attributes simd (notinbranch) if('x86_64')
+!GCC$ builtin (exp) attributes simd (notinbranch) if('x86_64')
+!GCC$ builtin (expf) attributes simd (notinbranch) if('x86_64')
+!GCC$ builtin (pow) attributes simd (notinbranch) if('x86_64')
+!GCC$ builtin (powf) attributes simd (notinbranch) if('x86_64')
+
+!GCC$ builtin (cos) attributes simd (notinbranch) if('x32')
+!GCC$ builtin (cosf) attributes simd (notinbranch) if('x32')
+!GCC$ builtin (sin) attributes simd (notinbranch) if('x32')
+!GCC$ builtin (sinf) attributes simd (notinbranch) if('x32')
+!GCC$ builtin (sincos) attributes simd (notinbranch) if('x32')
+!GCC$ builtin (sincosf) attributes simd (notinbranch) if('x32')
+!GCC$ builtin (log) attributes simd (notinbranch) if('x32')
+!GCC$ builtin (logf) attributes simd (notinbranch) if('x32')
+!GCC$ builtin (exp) attributes simd (notinbranch) if('x32')
+!GCC$ builtin (expf) attributes simd (notinbranch) if('x32')
+!GCC$ builtin (pow) attributes simd (notinbranch) if('x32')
+!GCC$ builtin (powf) attributes simd (notinbranch) if('x32')

74
arm-systemtap-probe-constraint.patch
View File

@ -1,74 +0,0 @@
2019-02-05 Florian Weimer <fweimer@redhat.com>
[BZ #24164]
arm: Use "nr" constraint for Systemtap probes, to avoid the
compiler using memory operands for constants, due to the "o"
alternative in the default "nor" constraint.
* include/stap-probe.h [USE_STAP_PROBE]: Include
<stap-probe-machine.h>
* sysdeps/generic/stap-probe-machine.h: New file.
* sysdeps/arm/stap-probe-machine.h: Likewise.
Index: glibc-2.29/include/stap-probe.h
===================================================================
--- glibc-2.29.orig/include/stap-probe.h
+++ glibc-2.29/include/stap-probe.h
@@ -21,6 +21,7 @@
#ifdef USE_STAP_PROBE
+# include <stap-probe-machine.h>
# include <sys/sdt.h>
/* Our code uses one macro LIBC_PROBE (name, n, arg1, ..., argn).
Index: glibc-2.29/sysdeps/arm/stap-probe-machine.h
===================================================================
--- /dev/null
+++ glibc-2.29/sysdeps/arm/stap-probe-machine.h
@@ -0,0 +1,22 @@
+/* Macros for customizing Systemtap <sys/sdt.h>. Arm version.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* The default "nor" constraint produces unparseable memory references
+ for constants. Omit the problematic "o" constraint. See bug 24164
+ and GCC PR 89146. */
+#define STAP_SDT_ARG_CONSTRAINT nr
Index: glibc-2.29/sysdeps/generic/stap-probe-machine.h
===================================================================
--- /dev/null
+++ glibc-2.29/sysdeps/generic/stap-probe-machine.h
@@ -0,0 +1,19 @@
+/* Macros for customizing Systemtap <sys/sdt.h>. Generic version.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* By default, there are no customizations. */

107
dl-show-auxv.patch
View File

@ -1,107 +0,0 @@
2019-03-13 Stefan Liebler <stli@linux.ibm.com>
* elf/dl-sysdep.c (_dl_show_auxv): Remove condition and always
call _dl_procinfo.
* sysdeps/unix/sysv/linux/s390/dl-procinfo.h (_dl_procinfo):
Ignore types other than AT_HWCAP.
* sysdeps/sparc/dl-procinfo.h (_dl_procinfo): Likewise.
* sysdeps/unix/sysv/linux/i386/dl-procinfo.h (_dl_procinfo):
Likewise.
* sysdeps/powerpc/dl-procinfo.h (_dl_procinfo): Adjust comment
in the case of falling back to generic output mechanism.
* sysdeps/unix/sysv/linux/arm/dl-procinfo.h (_dl_procinfo):
Likewise.
Index: glibc-2.29/elf/dl-sysdep.c
===================================================================
--- glibc-2.29.orig/elf/dl-sysdep.c
+++ glibc-2.29/elf/dl-sysdep.c
@@ -328,14 +328,9 @@ _dl_show_auxv (void)
assert (AT_NULL == 0);
assert (AT_IGNORE == 1);
- if (av->a_type == AT_HWCAP || av->a_type == AT_HWCAP2
- || AT_L1I_CACHEGEOMETRY || AT_L1D_CACHEGEOMETRY
- || AT_L2_CACHEGEOMETRY || AT_L3_CACHEGEOMETRY)
- {
- /* These are handled in a special way per platform. */
- if (_dl_procinfo (av->a_type, av->a_un.a_val) == 0)
- continue;
- }
+ /* Some entries are handled in a special way per platform. */
+ if (_dl_procinfo (av->a_type, av->a_un.a_val) == 0)
+ continue;
if (idx < sizeof (auxvars) / sizeof (auxvars[0])
&& auxvars[idx].form != unknown)
Index: glibc-2.29/sysdeps/powerpc/dl-procinfo.h
===================================================================
--- glibc-2.29.orig/sysdeps/powerpc/dl-procinfo.h
+++ glibc-2.29/sysdeps/powerpc/dl-procinfo.h
@@ -225,7 +225,7 @@ _dl_procinfo (unsigned int type, unsigne
break;
}
default:
- /* This should not happen. */
+ /* Fallback to generic output mechanism. */
return -1;
}
_dl_printf ("\n");
Index: glibc-2.29/sysdeps/sparc/dl-procinfo.h
===================================================================
--- glibc-2.29.orig/sysdeps/sparc/dl-procinfo.h
+++ glibc-2.29/sysdeps/sparc/dl-procinfo.h
@@ -31,8 +31,8 @@ _dl_procinfo (unsigned int type, unsigne
{
int i;
- /* Fallback to unknown output mechanism. */
- if (type == AT_HWCAP2)
+ /* Fallback to generic output mechanism. */
+ if (type != AT_HWCAP)
return -1;
_dl_printf ("AT_HWCAP: ");
Index: glibc-2.29/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
===================================================================
--- glibc-2.29.orig/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
+++ glibc-2.29/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
@@ -67,7 +67,7 @@ _dl_procinfo (unsigned int type, unsigne
break;
}
default:
- /* This should not happen. */
+ /* Fallback to generic output mechanism. */
return -1;
}
_dl_printf ("\n");
Index: glibc-2.29/sysdeps/unix/sysv/linux/i386/dl-procinfo.h
===================================================================
--- glibc-2.29.orig/sysdeps/unix/sysv/linux/i386/dl-procinfo.h
+++ glibc-2.29/sysdeps/unix/sysv/linux/i386/dl-procinfo.h
@@ -30,8 +30,8 @@ _dl_procinfo (unsigned int type, unsigne
in the kernel sources. */
int i;
- /* Fallback to unknown output mechanism. */
- if (type == AT_HWCAP2)
+ /* Fallback to generic output mechanism. */
+ if (type != AT_HWCAP)
return -1;
_dl_printf ("AT_HWCAP: ");
Index: glibc-2.29/sysdeps/unix/sysv/linux/s390/dl-procinfo.h
===================================================================
--- glibc-2.29.orig/sysdeps/unix/sysv/linux/s390/dl-procinfo.h
+++ glibc-2.29/sysdeps/unix/sysv/linux/s390/dl-procinfo.h
@@ -32,8 +32,8 @@ _dl_procinfo (unsigned int type, unsigne
in the kernel sources. */
int i;
- /* Fallback to unknown output mechanism. */
- if (type == AT_HWCAP2)
+ /* Fallback to generic output mechanism. */
+ if (type != AT_HWCAP)
return -1;
_dl_printf ("AT_HWCAP: ");

18
fix-locking-in-_IO_cleanup.patch
View File

@ -83,7 +83,7 @@ Index: glibc-2.27/libio/genops.c
}
libc_hidden_def (_IO_flush_all)
@@ -852,22 +860,18 @@ _IO_unbuffer_all (void)
@@ -852,6 +860,14 @@ _IO_unbuffer_all (void)
for (fp = (FILE *) _IO_list_all; fp; fp = fp->_chain)
{
@ -95,9 +95,12 @@ Index: glibc-2.27/libio/genops.c
+ continue;
+ }
+
if (! (fp->_flags & _IO_UNBUFFERED)
int legacy = 0;
#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
@@ -863,18 +879,6 @@ _IO_unbuffer_all (void)
/* Iff stream is un-orientated, it wasn't used. */
&& fp->_mode != 0)
&& (legacy || fp->_mode != 0))
{
-#ifdef _IO_MTSAFE_IO
- int cnt;
@ -111,12 +114,12 @@ Index: glibc-2.27/libio/genops.c
- __sched_yield ();
-#endif
-
if (! dealloc_buffers && !(fp->_flags & _IO_USER_BUF))
if (! legacy && ! dealloc_buffers && !(fp->_flags & _IO_USER_BUF))
{
fp->_flags |= _IO_USER_BUF;
@@ -881,16 +885,14 @@ _IO_unbuffer_all (void)
@@ -881,17 +885,15 @@ _IO_unbuffer_all (void)
if (fp->_mode > 0)
if (! legacy && fp->_mode > 0)
_IO_wsetb (fp, NULL, NULL, 0);
-
-#ifdef _IO_MTSAFE_IO
@ -127,7 +130,8 @@ Index: glibc-2.27/libio/genops.c
/* Make sure that never again the wide char functions can be
used. */
fp->_mode = -1;
if (! legacy)
fp->_mode = -1;
+
+ _IO_funlockfile (fp);
+ run_fp = NULL;

572
fnmatch-collating-elements.patch
View File

@ -1,572 +0,0 @@
Fix handling of collating elements in fnmatch (bug 17396, bug 16976)
This fixes the same bug in fnmatch that was fixed by commit 7e2f0d2d77 for
regexp matching. As a side effect it also removes the use of an unbound
VLA.
[BZ #16976]
[BZ #17396]
* posix/fnmatch_loop.c (internal_fnmatch, internal_fnwmatch): When
looking up collating elements match against (wide) character
sequence instead of name. Correct alignment adjustment.
* posix/fnmatch.c: Don't include "../locale/elem-hash.h".
(WMEMCMP) [HANDLE_MULTIBYTE]: Define.
* posix/Makefile (tests): Add tst-fnmatch4 and tst-fnmatch5.
(LOCALES): Add cs_CZ.ISO-8859-2.
* posix/tst-fnmatch4.c: New file.
* posix/tst-fnmatch5.c: New file.
* include/wchar.h (__wmemcmp): Declare.
* wcsmbs/wmemcmp.c: Define __wmemcmp and add wmemcmp as weak alias.
* sysdeps/i386/i686/multiarch/wmemcmp.c: Likewise.
* sysdeps/x86_64/multiarch/wmemcmp.c: Likewise.
* sysdeps/s390/wmemcmp.c: Likewise.
Index: glibc-2.28/include/wchar.h
===================================================================
--- glibc-2.28.orig/include/wchar.h
+++ glibc-2.28/include/wchar.h
@@ -143,6 +143,8 @@ libc_hidden_proto (wmemchr)
libc_hidden_proto (__wmemchr)
libc_hidden_proto (wmemset)
libc_hidden_proto (__wmemset)
+extern int __wmemcmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n)
+ __THROW __attribute_pure__;
/* Now define the internal interfaces. */
extern int __wcscasecmp (const wchar_t *__s1, const wchar_t *__s2)
Index: glibc-2.28/posix/Makefile
===================================================================
--- glibc-2.28.orig/posix/Makefile
+++ glibc-2.28/posix/Makefile
@@ -92,6 +92,7 @@ tests := test-errno tstgetopt testfnm r
bug-getopt5 tst-getopt_long1 bug-regex34 bug-regex35 \
tst-pathconf tst-rxspencer-no-utf8 \
tst-fnmatch3 bug-regex36 \
+ tst-fnmatch4 tst-fnmatch5 \
tst-posix_spawn-fd tst-posix_spawn-setsid \
tst-posix_fadvise tst-posix_fadvise64 \
tst-sysconf-empty-chroot tst-glob_symlinks tst-fexecve \
@@ -166,7 +167,8 @@ $(objpfx)wordexp-tst.out: wordexp-tst.sh
endif
LOCALES := cs_CZ.UTF-8 da_DK.ISO-8859-1 de_DE.ISO-8859-1 de_DE.UTF-8 \
- en_US.UTF-8 es_US.ISO-8859-1 es_US.UTF-8 ja_JP.EUC-JP tr_TR.UTF-8
+ en_US.UTF-8 es_US.ISO-8859-1 es_US.UTF-8 ja_JP.EUC-JP tr_TR.UTF-8 \
+ cs_CZ.ISO-8859-2
include ../gen-locales.mk
$(objpfx)bug-regex1.out: $(gen-locales)
Index: glibc-2.28/posix/fnmatch.c
===================================================================
--- glibc-2.28.orig/posix/fnmatch.c
+++ glibc-2.28/posix/fnmatch.c
@@ -53,7 +53,6 @@
we support a correct implementation only in glibc. */
#ifdef _LIBC
# include "../locale/localeinfo.h"
-# include "../locale/elem-hash.h"
# include "../locale/coll-lookup.h"
# include <shlib-compat.h>
@@ -237,6 +236,11 @@ __wcschrnul (const wchar_t *s, wint_t c)
# define MEMPCPY(D, S, N) __wmempcpy (D, S, N)
# define MEMCHR(S, C, N) __wmemchr (S, C, N)
# define STRCOLL(S1, S2) wcscoll (S1, S2)
+# ifdef _LIBC
+# define WMEMCMP(S1, S2, N) __wmemcmp (S1, S2, N)
+# else
+# define WMEMCMP(S1, S2, N) wmemcmp (S1, S2, N)
+# endif
# define WIDE_CHAR_VERSION 1
/* Change the name the header defines so it doesn't conflict with
the <locale/weight.h> version included above. */
Index: glibc-2.28/posix/fnmatch_loop.c
===================================================================
--- glibc-2.28.orig/posix/fnmatch_loop.c
+++ glibc-2.28/posix/fnmatch_loop.c
@@ -494,26 +494,12 @@ FCT (const CHAR *pattern, const CHAR *st
{
int32_t table_size;
const int32_t *symb_table;
-# if WIDE_CHAR_VERSION
- char str[c1];
- unsigned int strcnt;
-# else
-# define str (startp + 1)
-# endif
const unsigned char *extra;
int32_t idx;
int32_t elem;
- int32_t second;
- int32_t hash;
-
# if WIDE_CHAR_VERSION
- /* We have to convert the name to a single-byte
- string. This is possible since the names
- consist of ASCII characters and the internal
- representation is UCS4. */
- for (strcnt = 0; strcnt < c1; ++strcnt)
- str[strcnt] = startp[1 + strcnt];
-#endif
+ CHAR *wextra;
+# endif
table_size =
_NL_CURRENT_WORD (LC_COLLATE,
@@ -525,71 +511,54 @@ FCT (const CHAR *pattern, const CHAR *st
_NL_CURRENT (LC_COLLATE,
_NL_COLLATE_SYMB_EXTRAMB);
- /* Locate the character in the hashing table. */
- hash = elem_hash (str, c1);
-
- idx = 0;
- elem = hash % table_size;
- if (symb_table[2 * elem] != 0)
- {
- second = hash % (table_size - 2) + 1;
-
- do
- {
- /* First compare the hashing value. */
- if (symb_table[2 * elem] == hash
- && (c1
- == extra[symb_table[2 * elem + 1]])
- && memcmp (str,
- &extra[symb_table[2 * elem
- + 1]
- + 1], c1) == 0)
- {
- /* Yep, this is the entry. */
- idx = symb_table[2 * elem + 1];
- idx += 1 + extra[idx];
- break;
- }
-
- /* Next entry. */
- elem += second;
- }
- while (symb_table[2 * elem] != 0);
- }
+ for (elem = 0; elem < table_size; elem++)
+ if (symb_table[2 * elem] != 0)
+ {
+ idx = symb_table[2 * elem + 1];
+ /* Skip the name of collating element. */
+ idx += 1 + extra[idx];
+# if WIDE_CHAR_VERSION
+ /* Skip the byte sequence of the
+ collating element. */
+ idx += 1 + extra[idx];
+ /* Adjust for the alignment. */
+ idx = (idx + 3) & ~3;
+
+ wextra = (CHAR *) &extra[idx + 4];
+
+ if (/* Compare the length of the sequence. */
+ c1 == wextra[0]
+ /* Compare the wide char sequence. */
+ && WMEMCMP (startp + 1, &wextra[1],
+ c1) == 0)
+ /* Yep, this is the entry. */
+ break;
+# else
+ if (/* Compare the length of the sequence. */
+ c1 == extra[idx]
+ /* Compare the byte sequence. */
+ && memcmp (startp + 1,
+ &extra[idx + 1], c1) == 0)
+ /* Yep, this is the entry. */
+ break;
+# endif
+ }
- if (symb_table[2 * elem] != 0)
+ if (elem < table_size)
{
/* Compare the byte sequence but only if
this is not part of a range. */
-# if WIDE_CHAR_VERSION
- int32_t *wextra;
-
- idx += 1 + extra[idx];
- /* Adjust for the alignment. */
- idx = (idx + 3) & ~3;
+ if (! is_range
- wextra = (int32_t *) &extra[idx + 4];
-# endif
-
- if (! is_range)
- {
# if WIDE_CHAR_VERSION
- for (c1 = 0;
- (int32_t) c1 < wextra[idx];
- ++c1)
- if (n[c1] != wextra[1 + c1])
- break;
-
- if ((int32_t) c1 == wextra[idx])
- goto matched;
+ && WMEMCMP (n, &wextra[1], c1) == 0
# else
- for (c1 = 0; c1 < extra[idx]; ++c1)
- if (n[c1] != extra[1 + c1])
- break;
-
- if (c1 == extra[idx])
- goto matched;
+ && memcmp (n, &extra[idx + 1], c1) == 0
# endif
+ )
+ {
+ n += c1 - 1;
+ goto matched;
}
/* Get the collation sequence value. */
@@ -597,9 +566,9 @@ FCT (const CHAR *pattern, const CHAR *st
# if WIDE_CHAR_VERSION
cold = wextra[1 + wextra[idx]];
# else
- /* Adjust for the alignment. */
idx += 1 + extra[idx];
- idx = (idx + 3) & ~4;
+ /* Adjust for the alignment. */
+ idx = (idx + 3) & ~3;
cold = *((int32_t *) &extra[idx]);
# endif
@@ -609,10 +578,10 @@ FCT (const CHAR *pattern, const CHAR *st
{
/* No valid character. Match it as a
single byte. */
- if (!is_range && *n == str[0])
+ if (!is_range && *n == startp[1])
goto matched;
- cold = str[0];
+ cold = startp[1];
c = *p++;
}
else
@@ -620,7 +589,6 @@ FCT (const CHAR *pattern, const CHAR *st
}
}
else
-# undef str
#endif
{
c = FOLD (c);
@@ -712,25 +680,11 @@ FCT (const CHAR *pattern, const CHAR *st
{
int32_t table_size;
const int32_t *symb_table;
-# if WIDE_CHAR_VERSION
- char str[c1];
- unsigned int strcnt;
-# else
-# define str (startp + 1)
-# endif
const unsigned char *extra;
int32_t idx;
int32_t elem;
- int32_t second;
- int32_t hash;
-
# if WIDE_CHAR_VERSION
- /* We have to convert the name to a single-byte
- string. This is possible since the names
- consist of ASCII characters and the internal
- representation is UCS4. */
- for (strcnt = 0; strcnt < c1; ++strcnt)
- str[strcnt] = startp[1 + strcnt];
+ CHAR *wextra;
# endif
table_size =
@@ -743,71 +697,63 @@ FCT (const CHAR *pattern, const CHAR *st
_NL_CURRENT (LC_COLLATE,
_NL_COLLATE_SYMB_EXTRAMB);
- /* Locate the character in the hashing
- table. */
- hash = elem_hash (str, c1);
-
- idx = 0;
- elem = hash % table_size;
- if (symb_table[2 * elem] != 0)
- {
- second = hash % (table_size - 2) + 1;
-
- do
- {
- /* First compare the hashing value. */
- if (symb_table[2 * elem] == hash
- && (c1
- == extra[symb_table[2 * elem + 1]])
- && memcmp (str,
- &extra[symb_table[2 * elem + 1]
- + 1], c1) == 0)
- {
- /* Yep, this is the entry. */
- idx = symb_table[2 * elem + 1];
- idx += 1 + extra[idx];
- break;
- }
-
- /* Next entry. */
- elem += second;
- }
- while (symb_table[2 * elem] != 0);
- }
-
- if (symb_table[2 * elem] != 0)
- {
- /* Compare the byte sequence but only if
- this is not part of a range. */
+ for (elem = 0; elem < table_size; elem++)
+ if (symb_table[2 * elem] != 0)
+ {
+ idx = symb_table[2 * elem + 1];
+ /* Skip the name of collating
+ element. */
+ idx += 1 + extra[idx];
# if WIDE_CHAR_VERSION
- int32_t *wextra;
-
- idx += 1 + extra[idx];
- /* Adjust for the alignment. */
- idx = (idx + 3) & ~4;
-
- wextra = (int32_t *) &extra[idx + 4];
+ /* Skip the byte sequence of the
+ collating element. */
+ idx += 1 + extra[idx];
+ /* Adjust for the alignment. */
+ idx = (idx + 3) & ~3;
+
+ wextra = (CHAR *) &extra[idx + 4];
+
+ if (/* Compare the length of the
+ sequence. */
+ c1 == wextra[0]
+ /* Compare the wide char sequence. */
+ && WMEMCMP (startp + 1, &wextra[1],
+ c1) == 0)
+ /* Yep, this is the entry. */
+ break;
+# else
+ if (/* Compare the length of the
+ sequence. */
+ c1 == extra[idx]
+ /* Compare the byte sequence. */
+ && memcmp (startp + 1,
+ &extra[idx + 1], c1) == 0)
+ /* Yep, this is the entry. */
+ break;
# endif
+ }
+
+ if (elem < table_size)
+ {
/* Get the collation sequence value. */
is_seqval = 1;
# if WIDE_CHAR_VERSION
cend = wextra[1 + wextra[idx]];
# else
- /* Adjust for the alignment. */
idx += 1 + extra[idx];
- idx = (idx + 3) & ~4;
+ /* Adjust for the alignment. */
+ idx = (idx + 3) & ~3;
cend = *((int32_t *) &extra[idx]);
# endif
}
- else if (symb_table[2 * elem] != 0 && c1 == 1)
+ else if (c1 == 1)
{
- cend = str[0];
+ cend = startp[1];
c = *p++;
}
else
return FNM_NOMATCH;
}
-# undef str
}
else
{
Index: glibc-2.28/posix/tst-fnmatch4.c
===================================================================
--- /dev/null
+++ glibc-2.28/posix/tst-fnmatch4.c
@@ -0,0 +1,41 @@
+/* Test for fnmatch handling of collating elements
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <locale.h>
+#include <fnmatch.h>
+#include <support/check.h>
+
+static void
+do_test_locale (const char *locale)
+{
+ TEST_VERIFY_EXIT (setlocale (LC_ALL, locale) != NULL);
+
+ TEST_VERIFY (fnmatch ("[[.ch.]]", "ch", 0) == 0);
+}
+
+static int
+do_test (void)
+{
+ do_test_locale ("cs_CZ.ISO-8859-2");
+ do_test_locale ("cs_CZ.UTF-8");
+
+ return 0;
+}
+
+#include <support/test-driver.c>
Index: glibc-2.28/posix/tst-fnmatch5.c
===================================================================
--- /dev/null
+++ glibc-2.28/posix/tst-fnmatch5.c
@@ -0,0 +1,46 @@
+/* Test for fnmatch handling of collating elements
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fnmatch.h>
+#include <locale.h>
+#include <stdio.h>
+#include <string.h>
+#include <support/check.h>
+
+#define LENGTH 20000000
+
+static char pattern[LENGTH + 7];
+
+static int
+do_test (void)
+{
+ TEST_VERIFY_EXIT (setlocale (LC_ALL, "en_US.UTF-8") != NULL);
+
+ pattern[0] = '[';
+ pattern[1] = '[';
+ pattern[2] = '.';
+ memset (pattern + 3, 'a', LENGTH);
+ pattern[LENGTH + 3] = '.';
+ pattern[LENGTH + 4] = ']';
+ pattern[LENGTH + 5] = ']';
+ TEST_VERIFY (fnmatch (pattern, "a", 0) != 0);
+
+ return 0;
+}
+
+#include <support/test-driver.c>
Index: glibc-2.28/sysdeps/i386/i686/multiarch/wmemcmp.c
===================================================================
--- glibc-2.28.orig/sysdeps/i386/i686/multiarch/wmemcmp.c
+++ glibc-2.28/sysdeps/i386/i686/multiarch/wmemcmp.c
@@ -26,5 +26,6 @@
# define SYMBOL_NAME wmemcmp
# include "ifunc-ssse3-sse4_2.h"
-libc_ifunc_redirected (__redirect_wmemcmp, wmemcmp, IFUNC_SELECTOR ());
+libc_ifunc_redirected (__redirect_wmemcmp, __wmemcmp, IFUNC_SELECTOR ());
+weak_alias (__wmemcmp, wmemcmp)
#endif
Index: glibc-2.28/sysdeps/s390/wmemcmp.c
===================================================================
--- glibc-2.28.orig/sysdeps/s390/wmemcmp.c
+++ glibc-2.28/sysdeps/s390/wmemcmp.c
@@ -23,16 +23,17 @@
# include <ifunc-resolve.h>
# if HAVE_WMEMCMP_C
-extern __typeof (wmemcmp) WMEMCMP_C attribute_hidden;
+extern __typeof (__wmemcmp) WMEMCMP_C attribute_hidden;
# endif
# if HAVE_WMEMCMP_Z13
-extern __typeof (wmemcmp) WMEMCMP_Z13 attribute_hidden;
+extern __typeof (__wmemcmp) WMEMCMP_Z13 attribute_hidden;
# endif
-s390_libc_ifunc_expr (wmemcmp, wmemcmp,
+s390_libc_ifunc_expr (__wmemcmp, __wmemcmp,
(HAVE_WMEMCMP_Z13 && (hwcap & HWCAP_S390_VX))
? WMEMCMP_Z13
: WMEMCMP_DEFAULT
)
+weak_alias (__wmemcmp, wmemcmp)
#endif
Index: glibc-2.28/sysdeps/x86_64/multiarch/wmemcmp.c
===================================================================
--- glibc-2.28.orig/sysdeps/x86_64/multiarch/wmemcmp.c
+++ glibc-2.28/sysdeps/x86_64/multiarch/wmemcmp.c
@@ -26,5 +26,6 @@
# define SYMBOL_NAME wmemcmp
# include "ifunc-memcmp.h"
-libc_ifunc_redirected (__redirect_wmemcmp, wmemcmp, IFUNC_SELECTOR ());
+libc_ifunc_redirected (__redirect_wmemcmp, __wmemcmp, IFUNC_SELECTOR ());
+weak_alias (__wmemcmp, wmemcmp)
#endif
Index: glibc-2.28/wcsmbs/wmemcmp.c
===================================================================
--- glibc-2.28.orig/wcsmbs/wmemcmp.c
+++ glibc-2.28/wcsmbs/wmemcmp.c
@@ -18,12 +18,12 @@
#include <wchar.h>
-#ifndef WMEMCMP
-# define WMEMCMP wmemcmp
+#ifdef WMEMCMP
+# define __wmemcmp WMEMCMP
#endif
int
-WMEMCMP (const wchar_t *s1, const wchar_t *s2, size_t n)
+__wmemcmp (const wchar_t *s1, const wchar_t *s2, size_t n)
{
wchar_t c1;
wchar_t c2;
@@ -81,3 +81,6 @@ WMEMCMP (const wchar_t *s1, const wchar_
return 0;
}
+#ifndef WMEMCMP
+weak_alias (__wmemcmp, wmemcmp)
+#endif

91
fork-handler-lock.patch
View File

@ -1,91 +0,0 @@
2019-02-08 Florian Weimer <fweimer@redhat.com>
[BZ #24161]
* sysdeps/nptl/fork.h (__run_fork_handlers): Add multiple_threads
argument.
* nptl/register-atfork.c (__run_fork_handlers): Only perform
locking if the new do_locking argument is true.
* sysdeps/nptl/fork.c (__libc_fork): Pass multiple_threads to
__run_fork_handlers.
Index: glibc-2.29/nptl/register-atfork.c
===================================================================
--- glibc-2.29.orig/nptl/register-atfork.c
+++ glibc-2.29/nptl/register-atfork.c
@@ -107,13 +107,14 @@ __unregister_atfork (void *dso_handle)
}
void
-__run_fork_handlers (enum __run_fork_handler_type who)
+__run_fork_handlers (enum __run_fork_handler_type who, _Bool do_locking)
{
struct fork_handler *runp;
if (who == atfork_run_prepare)
{
- lll_lock (atfork_lock, LLL_PRIVATE);
+ if (do_locking)
+ lll_lock (atfork_lock, LLL_PRIVATE);
size_t sl = fork_handler_list_size (&fork_handlers);
for (size_t i = sl; i > 0; i--)
{
@@ -133,7 +134,8 @@ __run_fork_handlers (enum __run_fork_han
else if (who == atfork_run_parent && runp->parent_handler)
runp->parent_handler ();
}
- lll_unlock (atfork_lock, LLL_PRIVATE);
+ if (do_locking)
+ lll_unlock (atfork_lock, LLL_PRIVATE);
}
}
Index: glibc-2.29/sysdeps/nptl/fork.c
===================================================================
--- glibc-2.29.orig/sysdeps/nptl/fork.c
+++ glibc-2.29/sysdeps/nptl/fork.c
@@ -55,7 +55,7 @@ __libc_fork (void)
but our current fork implementation is not. */
bool multiple_threads = THREAD_GETMEM (THREAD_SELF, header.multiple_threads);
- __run_fork_handlers (atfork_run_prepare);
+ __run_fork_handlers (atfork_run_prepare, multiple_threads);
/* If we are not running multiple threads, we do not have to
preserve lock state. If fork runs from a signal handler, only
@@ -134,7 +134,7 @@ __libc_fork (void)
__rtld_lock_initialize (GL(dl_load_lock));
/* Run the handlers registered for the child. */
- __run_fork_handlers (atfork_run_child);
+ __run_fork_handlers (atfork_run_child, multiple_threads);
}
else
{
@@ -149,7 +149,7 @@ __libc_fork (void)
}
/* Run the handlers registered for the parent. */
- __run_fork_handlers (atfork_run_parent);
+ __run_fork_handlers (atfork_run_parent, multiple_threads);
}
return pid;
Index: glibc-2.29/sysdeps/nptl/fork.h
===================================================================
--- glibc-2.29.orig/sysdeps/nptl/fork.h
+++ glibc-2.29/sysdeps/nptl/fork.h
@@ -52,9 +52,11 @@ enum __run_fork_handler_type
- atfork_run_child: run all the CHILD_HANDLER and unlocks the internal
lock.
- atfork_run_parent: run all the PARENT_HANDLER and unlocks the internal
- lock. */
-extern void __run_fork_handlers (enum __run_fork_handler_type who)
- attribute_hidden;
+ lock.
+
+ Perform locking only if DO_LOCKING. */
+extern void __run_fork_handlers (enum __run_fork_handler_type who,
+ _Bool do_locking) attribute_hidden;
/* C library side function to register new fork handlers. */
extern int __register_atfork (void (*__prepare) (void),

3
glibc-2.29.tar.xz
View File

@ -1,3 +0,0 @@
version https://git-lfs.github.com/spec/v1
oid sha256:f3eeb8d57e25ca9fc13c2af3dae97754f9f643bc69229546828e3a240e2af04b
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54
glibc.changes
View File

@ -1,3 +1,57 @@
-------------------------------------------------------------------
Fri Aug 2 08:59:46 UTC 2019 - Andreas Schwab <schwab@suse.de>
- Update to glibc 2.30
* Unicode 12.1.0 Support
* The dynamic linker accepts the --preload argument to preload shared
objects
* The twalk_r function has been added
* On Linux, the getdents64, gettid, and tgkill functions have been added
* Minguo (Republic of China) calendar support has been added
* The entry for the new Japanese era has been added
* Memory allocation functions malloc, calloc, realloc, reallocarray, valloc,
pvalloc, memalign, and posix_memalign fail now with total object size
larger than PTRDIFF_MAX
* The dynamic linker no longer refuses to load objects which reference
versioned symbols whose implementation has moved to a different soname
since the object has been linked
* Add new POSIX-proposed pthread_cond_clockwait, pthread_mutex_clocklock,
pthread_rwlock_clockrdlock, pthread_rwlock_clockwrlock and sem_clockwait
functions
* On AArch64 the GNU IFUNC resolver call ABI changed
* The copy_file_range function fails with ENOSYS if the kernel does not
support the system call of the same name
* The functions clock_gettime, clock_getres, clock_settime,
clock_getcpuclockid, clock_nanosleep were removed from the librt library
for new applications (on architectures which had them)
* The obsolete and never-implemented XSI STREAMS header files <stropts.h>
and <sys/stropts.h> have been removed
* Support for the "inet6" option in /etc/resolv.conf and the RES_USE_INET6
resolver flag (deprecated in glibc 2.25) have been removed
* The obsolete RES_INSECURE1 and RES_INSECURE2 option flags for the DNS stub
resolver have been removed from <resolv.h>
* With --enable-bind-now, installed programs are now linked with the
BIND_NOW flag.
* On 32-bit Arm, support for the port-based I/O emulation and the <sys/io.h>
header have been removed
* The Linux-specific <sys/sysctl.h> header and the sysctl function have been
deprecated and will be removed from a future version of glibc
* CVE-2019-7309: x86-64 memcmp used signed Jcc instructions to check
size
* CVE-2019-9169: Attempted case-insensitive regular-expression match
via proceed_next_node in posix/regexec.c leads to heap-based buffer
over-read
- pthread-rwlock-trylock-stalls.patch,
arm-systemtap-probe-constraint.patch, pthread-mutex-barrier.patch,
fork-handler-lock.patch, pthread-join-probe.patch,
riscv-clone-unwind.patch, add-new-Fortran-vector-math-header-file.patch,
regex-read-overrun.patch, japanese-era-name-may-2019.patch,
dl-show-auxv.patch, s390-vx-vxe-hwcap.patch, taisho-era-string.patch,
malloc-tracing-hooks.patch, pldd-inf-loop.patch,
malloc-large-bin-corruption-check.patch, wfile-sync-crash.patch,
malloc-tests-warnings.patch, fnmatch-collating-elements.patch,
iconv-reset-input-buffer.patch: Removed
-------------------------------------------------------------------
Wed Jul 17 09:47:02 UTC 2019 - Andreas Schwab <schwab@suse.de>

9
glibc.keyring
View File

@ -1,3 +1,4 @@
GPG keys of Andreas Schwab <schwab>
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2
@ -39,6 +40,7 @@ h7J3UPL0JriHbmA3gbutataR5wnv9HmXtepz3rNglnjZFpMumTIaOKS86TjJ
=oOhV
-----END PGP PUBLIC KEY BLOCK-----
GPG keys of Roland McGrath <roland>
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.0.7 (NetBSD)
@ -88,6 +90,7 @@ XavWgG39OPlPqENUx7GIRgQYEQIABgUCPh6PKQAKCRDa9zUKfrvWJYxEAJ9FFDtc
=SLj7
-----END PGP PUBLIC KEY BLOCK-----
GPG keys of Paul Eggert <eggert>
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.10 (GNU/Linux)
@ -141,6 +144,7 @@ WtkGoi8buNcby4U=
=AL6o
-----END PGP PUBLIC KEY BLOCK-----
GPG keys of Ian Wienand <ianw>
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: PGP Key Server 0.9.6
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-----END PGP PUBLIC KEY BLOCK-----
GPG keys of Siddhesh Poyarekar <siddhesh>
-----BEGIN PGP PUBLIC KEY BLOCK-----
mQENBFMAZNMBCACeatEKl6YY9iEVxzS64bPbvJsA1mLE2XFWmKXyYzm58dFqPMa0
@ -299,6 +304,7 @@ sYfhl4H9GvFqm7QfT9MCEEG1sOjrrkZpFvc1IrMbislKNdIRBziudr9jv+zdz24H
TKN3JdfTyacfNU4=
=IcJn
-----END PGP PUBLIC KEY BLOCK-----
GPG keys of Carlos O'Donell <codonell>
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1
@ -377,6 +383,7 @@ tmATw6qr79EWeqLgPNQnKWojra9N7xcGRCULdhSOw0mQ5pryIMQheWqdPUhKURmX
c8HFfqRDMIQCPexAXgsSKg==
=d45e
-----END PGP PUBLIC KEY BLOCK-----
GPG keys of Karl Berry <karl>
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.5 (GNU/Linux)
@ -410,6 +417,7 @@ KLEPtgs1HkI=
=5dqZ
-----END PGP PUBLIC KEY BLOCK-----
GPG keys of Alexandre Oliva <oliva>
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.2.2 (GNU/Linux)
@ -621,6 +629,7 @@ N7JGzLVNo+A=
=fZUN
-----END PGP PUBLIC KEY BLOCK-----
GPG keys of Eric Blake <ericb>
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.10 (GNU/Linux)
Comment: Public key at http://people.redhat.com/eblake/eblake.gpg

66
glibc.spec
View File

@ -148,10 +148,10 @@ BuildArch: i686
%define enablekernel 4.15
%endif
Version: 2.29
Version: 2.30
Release: 0
%if !%{build_snapshot}
%define git_id 56c86f5dd516
%define git_id 0a8262a1b2
%define libversion %version
%else
%define git_id %(echo %version | sed 's/.*\.g//')
@ -267,52 +267,16 @@ Patch306: glibc-fix-double-loopback.diff
###
# Patches from upstream
###
# PATCH-FIX-UPSTREAM nptl: Fix pthread_rwlock_try*lock stalls (BZ #23844)
Patch1000: pthread-rwlock-trylock-stalls.patch
# PATCH-FIX-UPSTREAM arm: Use "nr" constraint for Systemtap probes (BZ #24164)
Patch1001: arm-systemtap-probe-constraint.patch
# PATCH-FIX-UPSTREAM Add compiler barriers around modifications of the robust mutex list for pthread_mutex_trylock (BZ #24180)
Patch1002: pthread-mutex-barrier.patch
# PATCH-FIX-UPSTREAM nptl: Avoid fork handler lock for async-signal-safe fork (BZ #24161)
Patch1003: fork-handler-lock.patch
# PATCH-FIX-UPSTREAM nptl: Fix invalid Systemtap probe in pthread_join (BZ #24211)
Patch1004: pthread-join-probe.patch
# PATCH-FIX-UPSTREAM RISC-V: Fix elfutils testsuite unwind failures (BZ #24040)
Patch1005: riscv-clone-unwind.patch
# PATCH-FIX-UPSTREAM Add new Fortran vector math header file.
Patch1006: add-new-Fortran-vector-math-header-file.patch
# PATCH-FIX-UPSTREAM regex: fix read overrun (CVE-2019-9169, BZ #24114)
Patch1007: regex-read-overrun.patch
# PATCH-FIX-UPSTREAM ja_JP locale: Add entry for the new Japanese era (BZ #22964)
Patch1008: japanese-era-name-may-2019.patch
# PATCH-FIX-UPSTREAM Fix output of LD_SHOW_AUXV=1
Patch1009: dl-show-auxv.patch
# PATCH-FIX-UPSTREAM S390: Mark vx and vxe as important hwcap
Patch1010: s390-vx-vxe-hwcap.patch
# PATCH-FIX-UPSTREAM ja_JP: Change the offset for Taisho gan-nen from 2 to 1 (BZ #24162)
Patch1011: taisho-era-string.patch
# PATCH-FIX-UPSTREAM malloc: Set and reset all hooks for tracing (BZ #16573)
Patch1012: malloc-tracing-hooks.patch
# PATCH-FIX-UPSTREAM elf: Fix pldd (BZ#18035)
Patch1013: pldd-inf-loop.patch
# PATCH-FIX-UPSTREAM malloc: Check for large bin list corruption when inserting unsorted chunk (BZ #24216)
Patch1014: malloc-large-bin-corruption-check.patch
# PATCH-FIX-UPSTREAM Fix crash in _IO_wfile_sync (BZ #20568)
Patch1015: wfile-sync-crash.patch
# PATCH-FIX-UPSTREAM malloc: Fix warnings in tests with GCC 9
Patch1016: malloc-tests-warnings.patch
# PATCH-FIX-UPSTREAM malloc: Remove unwanted leading whitespace in malloc_info (BZ #24867)
Patch1000: malloc-info-whitespace.patch
###
# Patches awaiting upstream approval
###
# PATCH-FIX-UPSTREAM Always to locking when accessing streams (BZ #15142)
Patch2000: fix-locking-in-_IO_cleanup.patch
# PATCH-FIX-UPSTREAM Fix fnmatch handling of collating elements (BZ #17396, BZ #16976)
Patch2004: fnmatch-collating-elements.patch
# PATCH-FIX-UPSTREAM Fix iconv buffer handling with IGNORE error handler (BZ #18830)
Patch2006: iconv-reset-input-buffer.patch
# PATCH-FIX-UPSTREAM Avoid concurrency problem in ldconfig (BZ #23973)
Patch2007: ldconfig-concurrency.patch
Patch2001: ldconfig-concurrency.patch
# Non-glibc patches
# PATCH-FIX-OPENSUSE Remove debianisms from manpages
@ -511,27 +475,9 @@ makedb: A program to create a database for nss
%patch306 -p1
%patch1000 -p1
%patch1001 -p1
%patch1002 -p1
%patch1003 -p1
%patch1004 -p1
%patch1005 -p1
%patch1006 -p1
%patch1007 -p1
%patch1008 -p1
%patch1009 -p1
%patch1010 -p1
%patch1011 -p1
%patch1012 -p1
%patch1013 -p1
%patch1014 -p1
%patch1015 -p1
%patch1016 -p1
%patch2000 -p1
%patch2004 -p1
%patch2006 -p1
%patch2007 -p1
%patch2001 -p1
%patch3000

329
iconv-reset-input-buffer.patch
View File

@ -1,329 +0,0 @@
Fix iconv buffer handling with IGNORE error handler (bug #18830)
[BZ #18830]
* iconv/skeleton.c (FUNCTION_NAME): Use RESET_INPUT_BUFFER only if
no irreversible characters occurred.
* iconv/gconv_simple.c (internal_ucs4_loop)
(internal_ucs4_loop_unaligned, internal_ucs4_loop_single)
(ucs4_internal_loop, ucs4_internal_loop_unaligned)
(ucs4_internal_loop_single, internal_ucs4le_loop)
(internal_ucs4le_loop_unaligned, internal_ucs4le_loop_single)
(ucs4le_internal_loop, ucs4le_internal_loop_unaligned)
(ucs4le_internal_loop_single): Add const to outend.
* iconv/Makefile (tests): Add tst-iconv7.
* iconv/tst-iconv7.c: New file.
Index: glibc-2.27/iconv/Makefile
===================================================================
--- glibc-2.27.orig/iconv/Makefile
+++ glibc-2.27/iconv/Makefile
@@ -44,7 +44,7 @@ CFLAGS-charmap.c += -DCHARMAP_PATH='"$(i
CFLAGS-simple-hash.c += -I../locale
tests = tst-iconv1 tst-iconv2 tst-iconv3 tst-iconv4 tst-iconv5 tst-iconv6 \
- tst-iconv-mt
+ tst-iconv7 tst-iconv-mt
others = iconv_prog iconvconfig
install-others-programs = $(inst_bindir)/iconv
Index: glibc-2.27/iconv/gconv_simple.c
===================================================================
--- glibc-2.27.orig/iconv/gconv_simple.c
+++ glibc-2.27/iconv/gconv_simple.c
@@ -76,7 +76,7 @@ __attribute ((always_inline))
internal_ucs4_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp, const unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
@@ -120,7 +120,8 @@ internal_ucs4_loop_unaligned (struct __g
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
@@ -169,7 +170,8 @@ internal_ucs4_loop_single (struct __gcon
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
@@ -231,7 +233,7 @@ __attribute ((always_inline))
ucs4_internal_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp, const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
@@ -298,7 +300,8 @@ ucs4_internal_loop_unaligned (struct __g
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
@@ -368,7 +371,8 @@ ucs4_internal_loop_single (struct __gcon
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
@@ -443,7 +447,7 @@ __attribute ((always_inline))
internal_ucs4le_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp, const unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
@@ -488,7 +492,8 @@ internal_ucs4le_loop_unaligned (struct _
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
@@ -540,7 +545,8 @@ internal_ucs4le_loop_single (struct __gc
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
@@ -601,7 +607,7 @@ __attribute ((always_inline))
ucs4le_internal_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp, const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
@@ -671,7 +677,8 @@ ucs4le_internal_loop_unaligned (struct _
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
@@ -745,7 +752,8 @@ ucs4le_internal_loop_single (struct __gc
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
Index: glibc-2.27/iconv/skeleton.c
===================================================================
--- glibc-2.27.orig/iconv/skeleton.c
+++ glibc-2.27/iconv/skeleton.c
@@ -597,6 +597,10 @@ FUNCTION_NAME (struct __gconv_step *step
inptr = *inptrp;
/* The outbuf buffer is empty. */
outstart = outbuf;
+#ifdef RESET_INPUT_BUFFER
+ size_t loop_irreversible
+ = lirreversible + (irreversible ? *irreversible : 0);
+#endif
#ifdef SAVE_RESET_STATE
SAVE_RESET_STATE (1);
@@ -671,8 +675,16 @@ FUNCTION_NAME (struct __gconv_step *step
if (__glibc_unlikely (outerr != outbuf))
{
#ifdef RESET_INPUT_BUFFER
- RESET_INPUT_BUFFER;
-#else
+ if (loop_irreversible
+ == lirreversible + (irreversible ? *irreversible : 0))
+ {
+ /* RESET_INPUT_BUFFER can only work if there
+ were no irreversible characters during the
+ last loop. */
+ RESET_INPUT_BUFFER;
+ goto done_reset;
+ }
+#endif
/* We have a problem in one of the functions below.
Undo the conversion upto the error point. */
size_t nstatus __attribute__ ((unused));
@@ -682,9 +694,9 @@ FUNCTION_NAME (struct __gconv_step *step
outbuf = outstart;
/* Restore the state. */
-# ifdef SAVE_RESET_STATE
+#ifdef SAVE_RESET_STATE
SAVE_RESET_STATE (0);
-# endif
+#endif
if (__glibc_likely (!unaligned))
{
@@ -701,7 +713,7 @@ FUNCTION_NAME (struct __gconv_step *step
lirreversiblep
EXTRA_LOOP_ARGS);
}
-# if POSSIBLY_UNALIGNED
+#if POSSIBLY_UNALIGNED
else
{
if (FROM_DIRECTION)
@@ -720,7 +732,7 @@ FUNCTION_NAME (struct __gconv_step *step
lirreversiblep
EXTRA_LOOP_ARGS);
}
-# endif
+#endif
/* We must run out of output buffer space in this
rerun. */
@@ -731,9 +743,11 @@ FUNCTION_NAME (struct __gconv_step *step
the invocation counter. */
if (__glibc_unlikely (outbuf == outstart))
--data->__invocation_counter;
-#endif /* reset input buffer */
}
+#ifdef RESET_INPUT_BUFFER
+ done_reset:
+#endif
/* Change the status. */
status = result;
}
Index: glibc-2.27/iconv/tst-iconv7.c
===================================================================
--- /dev/null
+++ glibc-2.27/iconv/tst-iconv7.c
@@ -0,0 +1,68 @@
+/* Test iconv buffer handling with the IGNORE error handler.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Derived from BZ #18830 */
+#include <errno.h>
+#include <iconv.h>
+#include <stdio.h>
+
+
+static int
+do_test (void)
+{
+ iconv_t cd = iconv_open ("ASCII//IGNORE", "ASCII");
+ if (cd == (iconv_t) -1)
+ {
+ puts ("iconv_open failed");
+ return 1;
+ }
+
+ char input[5 + 3] = { 0, 0, 0, 0, 0, '1', '\200', '2' };
+ char *inptr = input;
+ size_t insize = sizeof (input);
+ char output[5];
+ char *outptr = output;
+ size_t outsize = sizeof (output);
+
+ size_t ret = iconv (cd, &inptr, &insize, &outptr, &outsize);
+ if (ret != (size_t) -1)
+ {
+ puts ("iconv succeeded");
+ return 1;
+ }
+ if (errno != E2BIG)
+ {
+ puts ("iconv did not set errno to E2BIG");
+ return 1;
+ }
+ if (inptr != input + sizeof (output) - outsize)
+ {
+ printf ("iconv consumed %td characters\n", inptr - input);
+ return 1;
+ }
+
+ if (iconv_close (cd) == -1)
+ {
+ puts ("iconv_close failed");
+ return 1;
+ }
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
Index: glibc-2.27/sysdeps/s390/multiarch/gconv_simple.c
===================================================================
--- glibc-2.27.orig/sysdeps/s390/multiarch/gconv_simple.c
+++ glibc-2.27/sysdeps/s390/multiarch/gconv_simple.c
@@ -403,7 +403,7 @@ ICONV_VX_NAME (internal_ucs4le_loop) (st
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp,
- unsigned char *outend,
+ const unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
@@ -503,7 +503,7 @@ ICONV_VX_NAME (ucs4_internal_loop) (stru
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp,
- unsigned char *outend,
+ const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
@@ -630,7 +630,7 @@ ICONV_VX_NAME (ucs4le_internal_loop) (st
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp,
- unsigned char *outend,
+ const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;

21
japanese-era-name-may-2019.patch
View File

@ -1,21 +0,0 @@
2019-04-02 TAMUKI Shoichi <tamuki@linet.gr.jp>
[BZ #22964]
* localedata/locales/ja_JP (LC_TIME): Add entry for the new Japanese
era.
Index: glibc-2.29/localedata/locales/ja_JP
===================================================================
--- glibc-2.29.orig/localedata/locales/ja_JP
+++ glibc-2.29/localedata/locales/ja_JP
@@ -14946,7 +14946,9 @@ am_pm "<U5348><U524D>";"<U5348><U5F8C>"
t_fmt_ampm "%p%I<U6642>%M<U5206>%S<U79D2>"
-era "+:2:1990//01//01:+*:<U5E73><U6210>:%EC%Ey<U5E74>";/
+era "+:2:2020//01//01:+*:<U4EE4><U548C>:%EC%Ey<U5E74>";/
+ "+:1:2019//05//01:2019//12//31:<U4EE4><U548C>:%EC<U5143><U5E74>";/
+ "+:2:1990//01//01:2019//04//30:<U5E73><U6210>:%EC%Ey<U5E74>";/
"+:1:1989//01//08:1989//12//31:<U5E73><U6210>:%EC<U5143><U5E74>";/
"+:2:1927//01//01:1989//01//07:<U662D><U548C>:%EC%Ey<U5E74>";/
"+:1:1926//12//25:1926//12//31:<U662D><U548C>:%EC<U5143><U5E74>";/

22
malloc-info-whitespace.patch Normal file
View File

@ -0,0 +1,22 @@
2019-08-01 Florian Weimer <fweimer@redhat.com>
[BZ #24867]
* malloc/malloc.c (__malloc_info): Remove unwanted leading
whitespace.
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 00ce48cf58..343d89f489 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -5491,7 +5491,7 @@ __malloc_info (int options, FILE *fp)
for (size_t i = 0; i < nsizes; ++i)
if (sizes[i].count != 0 && i != NFASTBINS)
- fprintf (fp, " \
+ fprintf (fp, "\
<size from=\"%zu\" to=\"%zu\" total=\"%zu\" count=\"%zu\"/>\n",
sizes[i].from, sizes[i].to, sizes[i].total, sizes[i].count);
--
2.22.0

19
malloc-large-bin-corruption-check.patch
View File

@ -1,19 +0,0 @@
Index: glibc-2.29/malloc/malloc.c
===================================================================
--- glibc-2.29.orig/malloc/malloc.c
+++ glibc-2.29/malloc/malloc.c
@@ -3876,10 +3876,14 @@ _int_malloc (mstate av, size_t bytes)
{
victim->fd_nextsize = fwd;
victim->bk_nextsize = fwd->bk_nextsize;
+ if (__glibc_unlikely (fwd->bk_nextsize->fd_nextsize != fwd))
+ malloc_printerr ("malloc(): largebin double linked list corrupted (nextsize)");
fwd->bk_nextsize = victim;
victim->bk_nextsize->fd_nextsize = victim;
}
bck = fwd->bk;
+ if (bck->fd != fwd)
+ malloc_printerr ("malloc(): largebin double linked list corrupted (bk)");
}
}
else

123
malloc-tests-warnings.patch
View File

@ -1,123 +0,0 @@
2019-04-18 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* malloc/tst-memalign.c (do_test): Disable
-Walloc-size-larger-than= around tests of malloc with negative
sizes.
* malloc/tst-malloc-too-large.c (do_test): Likewise.
Index: glibc-2.29/malloc/tst-malloc-too-large.c
===================================================================
--- glibc-2.29.orig/malloc/tst-malloc-too-large.c
+++ glibc-2.29/malloc/tst-malloc-too-large.c
@@ -72,13 +72,28 @@ test_large_allocations (size_t size)
void * ptr_to_realloc;
test_setup ();
+ DIAG_PUSH_NEEDS_COMMENT;
+#if __GNUC_PREREQ (7, 0)
+ /* GCC 7 warns about too-large allocations; here we want to test
+ that they fail. */
+ DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
+#endif
TEST_VERIFY (malloc (size) == NULL);
+#if __GNUC_PREREQ (7, 0)
+ DIAG_POP_NEEDS_COMMENT;
+#endif
TEST_VERIFY (errno == ENOMEM);
ptr_to_realloc = malloc (16);
TEST_VERIFY_EXIT (ptr_to_realloc != NULL);
test_setup ();
+#if __GNUC_PREREQ (7, 0)
+ DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
+#endif
TEST_VERIFY (realloc (ptr_to_realloc, size) == NULL);
+#if __GNUC_PREREQ (7, 0)
+ DIAG_POP_NEEDS_COMMENT;
+#endif
TEST_VERIFY (errno == ENOMEM);
free (ptr_to_realloc);
@@ -135,7 +150,13 @@ test_large_aligned_allocations (size_t s
for (align = 1; align <= pagesize; align *= 2)
{
test_setup ();
+#if __GNUC_PREREQ (7, 0)
+ DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
+#endif
TEST_VERIFY (memalign (align, size) == NULL);
+#if __GNUC_PREREQ (7, 0)
+ DIAG_POP_NEEDS_COMMENT;
+#endif
TEST_VERIFY (errno == ENOMEM);
/* posix_memalign expects an alignment that is a power of 2 *and* a
@@ -151,7 +172,13 @@ test_large_aligned_allocations (size_t s
if ((size % align) == 0)
{
test_setup ();
+#if __GNUC_PREREQ (7, 0)
+ DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
+#endif
TEST_VERIFY (aligned_alloc (align, size) == NULL);
+#if __GNUC_PREREQ (7, 0)
+ DIAG_POP_NEEDS_COMMENT;
+#endif
TEST_VERIFY (errno == ENOMEM);
}
}
@@ -159,11 +186,23 @@ test_large_aligned_allocations (size_t s
/* Both valloc and pvalloc return page-aligned memory. */
test_setup ();
+#if __GNUC_PREREQ (7, 0)
+ DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
+#endif
TEST_VERIFY (valloc (size) == NULL);
+#if __GNUC_PREREQ (7, 0)
+ DIAG_POP_NEEDS_COMMENT;
+#endif
TEST_VERIFY (errno == ENOMEM);
test_setup ();
+#if __GNUC_PREREQ (7, 0)
+ DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
+#endif
TEST_VERIFY (pvalloc (size) == NULL);
+#if __GNUC_PREREQ (7, 0)
+ DIAG_POP_NEEDS_COMMENT;
+#endif
TEST_VERIFY (errno == ENOMEM);
}
Index: glibc-2.29/malloc/tst-memalign.c
===================================================================
--- glibc-2.29.orig/malloc/tst-memalign.c
+++ glibc-2.29/malloc/tst-memalign.c
@@ -21,6 +21,7 @@
#include <stdio.h>
#include <string.h>
#include <unistd.h>
+#include <libc-diag.h>
static int errors = 0;
@@ -41,9 +42,18 @@ do_test (void)
errno = 0;
+ DIAG_PUSH_NEEDS_COMMENT;
+#if __GNUC_PREREQ (7, 0)
+ /* GCC 7 warns about too-large allocations; here we want to test
+ that they fail. */
+ DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
+#endif
/* An attempt to allocate a huge value should return NULL and set
errno to ENOMEM. */
p = memalign (sizeof (void *), -1);
+#if __GNUC_PREREQ (7, 0)
+ DIAG_POP_NEEDS_COMMENT;
+#endif
save = errno;

156
malloc-tracing-hooks.patch
View File

@ -1,156 +0,0 @@
2019-04-09 Carlos O'Donell <carlos@redhat.com>
Kwok Cheung Yeung <kcy@codesourcery.com>
[BZ #16573]
* malloc/mtrace.c: Define prototypes for all hooks.
(set_default_hooks): New function.
(set_trace_hooks): Likewise.
(save_default_hooks): Likewise.
(tr_freehook): Use new s*_hooks functions.
(tr_mallochook): Likewise.
(tr_reallochook): Likewise.
(tr_memalignhook): Likewise.
(mtrace): Likewise.
(muntrace): Likewise.
Index: glibc-2.29/malloc/mtrace.c
===================================================================
--- glibc-2.29.orig/malloc/mtrace.c
+++ glibc-2.29/malloc/mtrace.c
@@ -121,6 +121,41 @@ lock_and_info (const void *caller, Dl_in
return res;
}
+static void tr_freehook (void *, const void *);
+static void * tr_mallochook (size_t, const void *);
+static void * tr_reallochook (void *, size_t, const void *);
+static void * tr_memalignhook (size_t, size_t, const void *);
+
+/* Set all the default non-trace hooks. */
+static __always_inline void
+set_default_hooks (void)
+{
+ __free_hook = tr_old_free_hook;
+ __malloc_hook = tr_old_malloc_hook;
+ __realloc_hook = tr_old_realloc_hook;
+ __memalign_hook = tr_old_memalign_hook;
+}
+
+/* Set all of the tracing hooks used for mtrace. */
+static __always_inline void
+set_trace_hooks (void)
+{
+ __free_hook = tr_freehook;
+ __malloc_hook = tr_mallochook;
+ __realloc_hook = tr_reallochook;
+ __memalign_hook = tr_memalignhook;
+}
+
+/* Save the current set of hooks as the default hooks. */
+static __always_inline void
+save_default_hooks (void)
+{
+ tr_old_free_hook = __free_hook;
+ tr_old_malloc_hook = __malloc_hook;
+ tr_old_realloc_hook = __realloc_hook;
+ tr_old_memalign_hook = __memalign_hook;
+}
+
static void
tr_freehook (void *ptr, const void *caller)
{
@@ -138,12 +173,12 @@ tr_freehook (void *ptr, const void *call
tr_break ();
__libc_lock_lock (lock);
}
- __free_hook = tr_old_free_hook;
+ set_default_hooks ();
if (tr_old_free_hook != NULL)
(*tr_old_free_hook)(ptr, caller);
else
free (ptr);
- __free_hook = tr_freehook;
+ set_trace_hooks ();
__libc_lock_unlock (lock);
}
@@ -155,12 +190,12 @@ tr_mallochook (size_t size, const void *
Dl_info mem;
Dl_info *info = lock_and_info (caller, &mem);
- __malloc_hook = tr_old_malloc_hook;
+ set_default_hooks ();
if (tr_old_malloc_hook != NULL)
hdr = (void *) (*tr_old_malloc_hook)(size, caller);
else
hdr = (void *) malloc (size);
- __malloc_hook = tr_mallochook;
+ set_trace_hooks ();
tr_where (caller, info);
/* We could be printing a NULL here; that's OK. */
@@ -185,16 +220,12 @@ tr_reallochook (void *ptr, size_t size,
Dl_info mem;
Dl_info *info = lock_and_info (caller, &mem);
- __free_hook = tr_old_free_hook;
- __malloc_hook = tr_old_malloc_hook;
- __realloc_hook = tr_old_realloc_hook;
+ set_default_hooks ();
if (tr_old_realloc_hook != NULL)
hdr = (void *) (*tr_old_realloc_hook)(ptr, size, caller);
else
hdr = (void *) realloc (ptr, size);
- __free_hook = tr_freehook;
- __malloc_hook = tr_mallochook;
- __realloc_hook = tr_reallochook;
+ set_trace_hooks ();
tr_where (caller, info);
if (hdr == NULL)
@@ -230,14 +261,12 @@ tr_memalignhook (size_t alignment, size_
Dl_info mem;
Dl_info *info = lock_and_info (caller, &mem);
- __memalign_hook = tr_old_memalign_hook;
- __malloc_hook = tr_old_malloc_hook;
+ set_default_hooks ();
if (tr_old_memalign_hook != NULL)
hdr = (void *) (*tr_old_memalign_hook)(alignment, size, caller);
else
hdr = (void *) memalign (alignment, size);
- __memalign_hook = tr_memalignhook;
- __malloc_hook = tr_mallochook;
+ set_trace_hooks ();
tr_where (caller, info);
/* We could be printing a NULL here; that's OK. */
@@ -305,14 +334,8 @@ mtrace (void)
malloc_trace_buffer = mtb;
setvbuf (mallstream, malloc_trace_buffer, _IOFBF, TRACE_BUFFER_SIZE);
fprintf (mallstream, "= Start\n");
- tr_old_free_hook = __free_hook;
- __free_hook = tr_freehook;
- tr_old_malloc_hook = __malloc_hook;
- __malloc_hook = tr_mallochook;
- tr_old_realloc_hook = __realloc_hook;
- __realloc_hook = tr_reallochook;
- tr_old_memalign_hook = __memalign_hook;
- __memalign_hook = tr_memalignhook;
+ save_default_hooks ();
+ set_trace_hooks ();
#ifdef _LIBC
if (!added_atexit_handler)
{
@@ -338,10 +361,7 @@ muntrace (void)
file. */
FILE *f = mallstream;
mallstream = NULL;
- __free_hook = tr_old_free_hook;
- __malloc_hook = tr_old_malloc_hook;
- __realloc_hook = tr_old_realloc_hook;
- __memalign_hook = tr_old_memalign_hook;
+ set_default_hooks ();
fprintf (f, "= End\n");
fclose (f);

393
pldd-inf-loop.patch
View File

@ -1,393 +0,0 @@
2019-04-23 Adhemerval Zanella <adhemerval.zanella@linaro.org>
[BZ #18035]
* elf/pldd-xx.c: Use _Static_assert in of pldd_assert.
(E(find_maps)): Avoid use alloca, use default read file operations
instead of explicit LFS names, and fix infinite loop.
* elf/pldd.c: Explicit set _FILE_OFFSET_BITS, cleanup headers.
(get_process_info): Use _Static_assert instead of assert, use default
directory operations instead of explicit LFS names, and free some
leadek pointers.
Index: glibc-2.29/elf/pldd-xx.c
===================================================================
--- glibc-2.29.orig/elf/pldd-xx.c
+++ glibc-2.29/elf/pldd-xx.c
@@ -23,10 +23,6 @@
#define EW_(e, w, t) EW__(e, w, _##t)
#define EW__(e, w, t) e##w##t
-#define pldd_assert(name, exp) \
- typedef int __assert_##name[((exp) != 0) - 1]
-
-
struct E(link_map)
{
EW(Addr) l_addr;
@@ -39,12 +35,12 @@ struct E(link_map)
EW(Addr) l_libname;
};
#if CLASS == __ELF_NATIVE_CLASS
-pldd_assert (l_addr, (offsetof (struct link_map, l_addr)
- == offsetof (struct E(link_map), l_addr)));
-pldd_assert (l_name, (offsetof (struct link_map, l_name)
- == offsetof (struct E(link_map), l_name)));
-pldd_assert (l_next, (offsetof (struct link_map, l_next)
- == offsetof (struct E(link_map), l_next)));
+_Static_assert (offsetof (struct link_map, l_addr)
+ == offsetof (struct E(link_map), l_addr), "l_addr");
+_Static_assert (offsetof (struct link_map, l_name)
+ == offsetof (struct E(link_map), l_name), "l_name");
+_Static_assert (offsetof (struct link_map, l_next)
+ == offsetof (struct E(link_map), l_next), "l_next");
#endif
@@ -54,10 +50,10 @@ struct E(libname_list)
EW(Addr) next;
};
#if CLASS == __ELF_NATIVE_CLASS
-pldd_assert (name, (offsetof (struct libname_list, name)
- == offsetof (struct E(libname_list), name)));
-pldd_assert (next, (offsetof (struct libname_list, next)
- == offsetof (struct E(libname_list), next)));
+_Static_assert (offsetof (struct libname_list, name)
+ == offsetof (struct E(libname_list), name), "name");
+_Static_assert (offsetof (struct libname_list, next)
+ == offsetof (struct E(libname_list), next), "next");
#endif
struct E(r_debug)
@@ -69,16 +65,17 @@ struct E(r_debug)
EW(Addr) r_map;
};
#if CLASS == __ELF_NATIVE_CLASS
-pldd_assert (r_version, (offsetof (struct r_debug, r_version)
- == offsetof (struct E(r_debug), r_version)));
-pldd_assert (r_map, (offsetof (struct r_debug, r_map)
- == offsetof (struct E(r_debug), r_map)));
+_Static_assert (offsetof (struct r_debug, r_version)
+ == offsetof (struct E(r_debug), r_version), "r_version");
+_Static_assert (offsetof (struct r_debug, r_map)
+ == offsetof (struct E(r_debug), r_map), "r_map");
#endif
static int
-E(find_maps) (pid_t pid, void *auxv, size_t auxv_size)
+E(find_maps) (const char *exe, int memfd, pid_t pid, void *auxv,
+ size_t auxv_size)
{
EW(Addr) phdr = 0;
unsigned int phnum = 0;
@@ -104,12 +101,9 @@ E(find_maps) (pid_t pid, void *auxv, siz
if (phdr == 0 || phnum == 0 || phent == 0)
error (EXIT_FAILURE, 0, gettext ("cannot find program header of process"));
- EW(Phdr) *p = alloca (phnum * phent);
- if (pread64 (memfd, p, phnum * phent, phdr) != phnum * phent)
- {
- error (0, 0, gettext ("cannot read program header"));
- return EXIT_FAILURE;
- }
+ EW(Phdr) *p = xmalloc (phnum * phent);
+ if (pread (memfd, p, phnum * phent, phdr) != phnum * phent)
+ error (EXIT_FAILURE, 0, gettext ("cannot read program header"));
/* Determine the load offset. We need this for interpreting the
other program header entries so we do this in a separate loop.
@@ -129,24 +123,18 @@ E(find_maps) (pid_t pid, void *auxv, siz
if (p[i].p_type == PT_DYNAMIC)
{
EW(Dyn) *dyn = xmalloc (p[i].p_filesz);
- if (pread64 (memfd, dyn, p[i].p_filesz, offset + p[i].p_vaddr)
+ if (pread (memfd, dyn, p[i].p_filesz, offset + p[i].p_vaddr)
!= p[i].p_filesz)
- {
- error (0, 0, gettext ("cannot read dynamic section"));
- return EXIT_FAILURE;
- }
+ error (EXIT_FAILURE, 0, gettext ("cannot read dynamic section"));
/* Search for the DT_DEBUG entry. */
for (unsigned int j = 0; j < p[i].p_filesz / sizeof (EW(Dyn)); ++j)
if (dyn[j].d_tag == DT_DEBUG && dyn[j].d_un.d_ptr != 0)
{
struct E(r_debug) r;
- if (pread64 (memfd, &r, sizeof (r), dyn[j].d_un.d_ptr)
+ if (pread (memfd, &r, sizeof (r), dyn[j].d_un.d_ptr)
!= sizeof (r))
- {
- error (0, 0, gettext ("cannot read r_debug"));
- return EXIT_FAILURE;
- }
+ error (EXIT_FAILURE, 0, gettext ("cannot read r_debug"));
if (r.r_map != 0)
{
@@ -160,13 +148,10 @@ E(find_maps) (pid_t pid, void *auxv, siz
}
else if (p[i].p_type == PT_INTERP)
{
- interp = alloca (p[i].p_filesz);
- if (pread64 (memfd, interp, p[i].p_filesz, offset + p[i].p_vaddr)
+ interp = xmalloc (p[i].p_filesz);
+ if (pread (memfd, interp, p[i].p_filesz, offset + p[i].p_vaddr)
!= p[i].p_filesz)
- {
- error (0, 0, gettext ("cannot read program interpreter"));
- return EXIT_FAILURE;
- }
+ error (EXIT_FAILURE, 0, gettext ("cannot read program interpreter"));
}
if (list == 0)
@@ -174,14 +159,16 @@ E(find_maps) (pid_t pid, void *auxv, siz
if (interp == NULL)
{
// XXX check whether the executable itself is the loader
- return EXIT_FAILURE;
+ exit (EXIT_FAILURE);
}
// XXX perhaps try finding ld.so and _r_debug in it
-
- return EXIT_FAILURE;
+ exit (EXIT_FAILURE);
}
+ free (p);
+ free (interp);
+
/* Print the PID and program name first. */
printf ("%lu:\t%s\n", (unsigned long int) pid, exe);
@@ -192,47 +179,27 @@ E(find_maps) (pid_t pid, void *auxv, siz
do
{
struct E(link_map) m;
- if (pread64 (memfd, &m, sizeof (m), list) != sizeof (m))
- {
- error (0, 0, gettext ("cannot read link map"));
- status = EXIT_FAILURE;
- goto out;
- }
+ if (pread (memfd, &m, sizeof (m), list) != sizeof (m))
+ error (EXIT_FAILURE, 0, gettext ("cannot read link map"));
EW(Addr) name_offset = m.l_name;
- again:
while (1)
{
- ssize_t n = pread64 (memfd, tmpbuf.data, tmpbuf.length, name_offset);
+ ssize_t n = pread (memfd, tmpbuf.data, tmpbuf.length, name_offset);
if (n == -1)
- {
- error (0, 0, gettext ("cannot read object name"));
- status = EXIT_FAILURE;
- goto out;
- }
+ error (EXIT_FAILURE, 0, gettext ("cannot read object name"));
if (memchr (tmpbuf.data, '\0', n) != NULL)
break;
if (!scratch_buffer_grow (&tmpbuf))
- {
- error (0, 0, gettext ("cannot allocate buffer for object name"));
- status = EXIT_FAILURE;
- goto out;
- }
+ error (EXIT_FAILURE, 0,
+ gettext ("cannot allocate buffer for object name"));
}
- if (((char *)tmpbuf.data)[0] == '\0' && name_offset == m.l_name
- && m.l_libname != 0)
- {
- /* Try the l_libname element. */
- struct E(libname_list) ln;
- if (pread64 (memfd, &ln, sizeof (ln), m.l_libname) == sizeof (ln))
- {
- name_offset = ln.name;
- goto again;
- }
- }
+ /* The m.l_name and m.l_libname.name for loader linkmap points to same
+ values (since BZ#387 fix). Trying to use l_libname name as the
+ shared object name might lead to an infinite loop (BZ#18035). */
/* Skip over the executable. */
if (((char *)tmpbuf.data)[0] != '\0')
@@ -242,7 +209,6 @@ E(find_maps) (pid_t pid, void *auxv, siz
}
while (list != 0);
- out:
scratch_buffer_free (&tmpbuf);
return status;
}
Index: glibc-2.29/elf/pldd.c
===================================================================
--- glibc-2.29.orig/elf/pldd.c
+++ glibc-2.29/elf/pldd.c
@@ -17,23 +17,17 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#include <alloca.h>
+#define _FILE_OFFSET_BITS 64
+
#include <argp.h>
-#include <assert.h>
#include <dirent.h>
-#include <elf.h>
-#include <errno.h>
#include <error.h>
#include <fcntl.h>
#include <libintl.h>
-#include <link.h>
-#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
-#include <string.h>
#include <unistd.h>
#include <sys/ptrace.h>
-#include <sys/stat.h>
#include <sys/wait.h>
#include <scratch_buffer.h>
@@ -76,14 +70,9 @@ static struct argp argp =
options, parse_opt, args_doc, doc, NULL, more_help, NULL
};
-// File descriptor of /proc/*/mem file.
-static int memfd;
-
-/* Name of the executable */
-static char *exe;
/* Local functions. */
-static int get_process_info (int dfd, long int pid);
+static int get_process_info (const char *exe, int dfd, long int pid);
static void wait_for_ptrace_stop (long int pid);
@@ -102,8 +91,10 @@ main (int argc, char *argv[])
return 1;
}
- assert (sizeof (pid_t) == sizeof (int)
- || sizeof (pid_t) == sizeof (long int));
+ _Static_assert (sizeof (pid_t) == sizeof (int)
+ || sizeof (pid_t) == sizeof (long int),
+ "sizeof (pid_t) != sizeof (int) or sizeof (long int)");
+
char *endp;
errno = 0;
long int pid = strtol (argv[remaining], &endp, 10);
@@ -119,25 +110,24 @@ main (int argc, char *argv[])
if (dfd == -1)
error (EXIT_FAILURE, errno, gettext ("cannot open %s"), buf);
- struct scratch_buffer exebuf;
- scratch_buffer_init (&exebuf);
+ /* Name of the executable */
+ struct scratch_buffer exe;
+ scratch_buffer_init (&exe);
ssize_t nexe;
while ((nexe = readlinkat (dfd, "exe",
- exebuf.data, exebuf.length)) == exebuf.length)
+ exe.data, exe.length)) == exe.length)
{
- if (!scratch_buffer_grow (&exebuf))
+ if (!scratch_buffer_grow (&exe))
{
nexe = -1;
break;
}
}
if (nexe == -1)
- exe = (char *) "<program name undetermined>";
+ /* Default stack allocation is at least 1024. */
+ snprintf (exe.data, exe.length, "<program name undetermined>");
else
- {
- exe = exebuf.data;
- exe[nexe] = '\0';
- }
+ ((char*)exe.data)[nexe] = '\0';
/* Stop all threads since otherwise the list of loaded modules might
change while we are reading it. */
@@ -155,8 +145,8 @@ main (int argc, char *argv[])
error (EXIT_FAILURE, errno, gettext ("cannot prepare reading %s/task"),
buf);
- struct dirent64 *d;
- while ((d = readdir64 (dir)) != NULL)
+ struct dirent *d;
+ while ((d = readdir (dir)) != NULL)
{
if (! isdigit (d->d_name[0]))
continue;
@@ -182,7 +172,7 @@ main (int argc, char *argv[])
wait_for_ptrace_stop (tid);
- struct thread_list *newp = alloca (sizeof (*newp));
+ struct thread_list *newp = xmalloc (sizeof (*newp));
newp->tid = tid;
newp->next = thread_list;
thread_list = newp;
@@ -190,17 +180,22 @@ main (int argc, char *argv[])
closedir (dir);
- int status = get_process_info (dfd, pid);
+ if (thread_list == NULL)
+ error (EXIT_FAILURE, 0, gettext ("no valid %s/task entries"), buf);
+
+ int status = get_process_info (exe.data, dfd, pid);
- assert (thread_list != NULL);
do
{
ptrace (PTRACE_DETACH, thread_list->tid, NULL, NULL);
+ struct thread_list *prev = thread_list;
thread_list = thread_list->next;
+ free (prev);
}
while (thread_list != NULL);
close (dfd);
+ scratch_buffer_free (&exe);
return status;
}
@@ -281,9 +276,10 @@ warranty; not even for MERCHANTABILITY o
static int
-get_process_info (int dfd, long int pid)
+get_process_info (const char *exe, int dfd, long int pid)
{
- memfd = openat (dfd, "mem", O_RDONLY);
+ /* File descriptor of /proc/<pid>/mem file. */
+ int memfd = openat (dfd, "mem", O_RDONLY);
if (memfd == -1)
goto no_info;
@@ -333,9 +329,9 @@ get_process_info (int dfd, long int pid)
int retval;
if (e_ident[EI_CLASS] == ELFCLASS32)
- retval = find_maps32 (pid, auxv, auxv_size);
+ retval = find_maps32 (exe, memfd, pid, auxv, auxv_size);
else
- retval = find_maps64 (pid, auxv, auxv_size);
+ retval = find_maps64 (exe, memfd, pid, auxv, auxv_size);
free (auxv);
close (memfd);

36
pthread-join-probe.patch
View File

@ -1,36 +0,0 @@
2019-02-15 Florian Weimer <fweimer@redhat.com>
[BZ #24211]
* nptl/pthread_join_common.c (__pthread_timedjoin_ex): Do not read
pd->result after the thread descriptor has been freed.
Index: glibc-2.29/nptl/pthread_join_common.c
===================================================================
--- glibc-2.29.orig/nptl/pthread_join_common.c
+++ glibc-2.29/nptl/pthread_join_common.c
@@ -86,6 +86,7 @@ __pthread_timedjoin_ex (pthread_t thread
pthread_cleanup_pop (0);
}
+ void *pd_result = pd->result;
if (__glibc_likely (result == 0))
{
/* We mark the thread as terminated and as joined. */
@@ -93,7 +94,7 @@ __pthread_timedjoin_ex (pthread_t thread
/* Store the return value if the caller is interested. */
if (thread_return != NULL)
- *thread_return = pd->result;
+ *thread_return = pd_result;
/* Free the TCB. */
__free_tcb (pd);
@@ -101,7 +102,7 @@ __pthread_timedjoin_ex (pthread_t thread
else
pd->joinid = NULL;
- LIBC_PROBE (pthread_join_ret, 3, threadid, result, pd->result);
+ LIBC_PROBE (pthread_join_ret, 3, threadid, result, pd_result);
return result;
}

173
pthread-mutex-barrier.patch
View File

@ -1,173 +0,0 @@
2019-02-07 Stefan Liebler <stli@linux.ibm.com>
[BZ #24180]
* nptl/pthread_mutex_trylock.c (__pthread_mutex_trylock):
Add compiler barriers and comments.
Index: glibc-2.29/nptl/pthread_mutex_trylock.c
===================================================================
--- glibc-2.29.orig/nptl/pthread_mutex_trylock.c
+++ glibc-2.29/nptl/pthread_mutex_trylock.c
@@ -94,6 +94,9 @@ __pthread_mutex_trylock (pthread_mutex_t
case PTHREAD_MUTEX_ROBUST_ADAPTIVE_NP:
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending,
&mutex->__data.__list.__next);
+ /* We need to set op_pending before starting the operation. Also
+ see comments at ENQUEUE_MUTEX. */
+ __asm ("" ::: "memory");
oldval = mutex->__data.__lock;
do
@@ -119,7 +122,12 @@ __pthread_mutex_trylock (pthread_mutex_t
/* But it is inconsistent unless marked otherwise. */
mutex->__data.__owner = PTHREAD_MUTEX_INCONSISTENT;
+ /* We must not enqueue the mutex before we have acquired it.
+ Also see comments at ENQUEUE_MUTEX. */
+ __asm ("" ::: "memory");
ENQUEUE_MUTEX (mutex);
+ /* We need to clear op_pending after we enqueue the mutex. */
+ __asm ("" ::: "memory");
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
/* Note that we deliberately exist here. If we fall
@@ -135,6 +143,8 @@ __pthread_mutex_trylock (pthread_mutex_t
int kind = PTHREAD_MUTEX_TYPE (mutex);
if (kind == PTHREAD_MUTEX_ROBUST_ERRORCHECK_NP)
{
+ /* We do not need to ensure ordering wrt another memory
+ access. Also see comments at ENQUEUE_MUTEX. */
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending,
NULL);
return EDEADLK;
@@ -142,6 +152,8 @@ __pthread_mutex_trylock (pthread_mutex_t
if (kind == PTHREAD_MUTEX_ROBUST_RECURSIVE_NP)
{
+ /* We do not need to ensure ordering wrt another memory
+ access. */
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending,
NULL);
@@ -160,6 +172,9 @@ __pthread_mutex_trylock (pthread_mutex_t
id, 0);
if (oldval != 0 && (oldval & FUTEX_OWNER_DIED) == 0)
{
+ /* We haven't acquired the lock as it is already acquired by
+ another owner. We do not need to ensure ordering wrt another
+ memory access. */
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
return EBUSY;
@@ -173,13 +188,20 @@ __pthread_mutex_trylock (pthread_mutex_t
if (oldval == id)
lll_unlock (mutex->__data.__lock,
PTHREAD_ROBUST_MUTEX_PSHARED (mutex));
+ /* FIXME This violates the mutex destruction requirements. See
+ __pthread_mutex_unlock_full. */
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
return ENOTRECOVERABLE;
}
}
while ((oldval & FUTEX_OWNER_DIED) != 0);
+ /* We must not enqueue the mutex before we have acquired it.
+ Also see comments at ENQUEUE_MUTEX. */
+ __asm ("" ::: "memory");
ENQUEUE_MUTEX (mutex);
+ /* We need to clear op_pending after we enqueue the mutex. */
+ __asm ("" ::: "memory");
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
mutex->__data.__owner = id;
@@ -211,10 +233,15 @@ __pthread_mutex_trylock (pthread_mutex_t
}
if (robust)
- /* Note: robust PI futexes are signaled by setting bit 0. */
- THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending,
- (void *) (((uintptr_t) &mutex->__data.__list.__next)
- | 1));
+ {
+ /* Note: robust PI futexes are signaled by setting bit 0. */
+ THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending,
+ (void *) (((uintptr_t) &mutex->__data.__list.__next)
+ | 1));
+ /* We need to set op_pending before starting the operation. Also
+ see comments at ENQUEUE_MUTEX. */
+ __asm ("" ::: "memory");
+ }
oldval = mutex->__data.__lock;
@@ -223,12 +250,16 @@ __pthread_mutex_trylock (pthread_mutex_t
{
if (kind == PTHREAD_MUTEX_ERRORCHECK_NP)
{
+ /* We do not need to ensure ordering wrt another memory
+ access. */
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
return EDEADLK;
}
if (kind == PTHREAD_MUTEX_RECURSIVE_NP)
{
+ /* We do not need to ensure ordering wrt another memory
+ access. */
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
/* Just bump the counter. */
@@ -250,6 +281,9 @@ __pthread_mutex_trylock (pthread_mutex_t
{
if ((oldval & FUTEX_OWNER_DIED) == 0)
{
+ /* We haven't acquired the lock as it is already acquired by
+ another owner. We do not need to ensure ordering wrt another
+ memory access. */
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
return EBUSY;
@@ -270,6 +304,9 @@ __pthread_mutex_trylock (pthread_mutex_t
if (INTERNAL_SYSCALL_ERROR_P (e, __err)
&& INTERNAL_SYSCALL_ERRNO (e, __err) == EWOULDBLOCK)
{
+ /* The kernel has not yet finished the mutex owner death.
+ We do not need to ensure ordering wrt another memory
+ access. */
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
return EBUSY;
@@ -287,7 +324,12 @@ __pthread_mutex_trylock (pthread_mutex_t
/* But it is inconsistent unless marked otherwise. */
mutex->__data.__owner = PTHREAD_MUTEX_INCONSISTENT;
+ /* We must not enqueue the mutex before we have acquired it.
+ Also see comments at ENQUEUE_MUTEX. */
+ __asm ("" ::: "memory");
ENQUEUE_MUTEX (mutex);
+ /* We need to clear op_pending after we enqueue the mutex. */
+ __asm ("" ::: "memory");
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
/* Note that we deliberately exit here. If we fall
@@ -310,13 +352,20 @@ __pthread_mutex_trylock (pthread_mutex_t
PTHREAD_ROBUST_MUTEX_PSHARED (mutex)),
0, 0);
+ /* To the kernel, this will be visible after the kernel has
+ acquired the mutex in the syscall. */
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
return ENOTRECOVERABLE;
}
if (robust)
{
+ /* We must not enqueue the mutex before we have acquired it.
+ Also see comments at ENQUEUE_MUTEX. */
+ __asm ("" ::: "memory");
ENQUEUE_MUTEX_PI (mutex);
+ /* We need to clear op_pending after we enqueue the mutex. */
+ __asm ("" ::: "memory");
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
}

616
pthread-rwlock-trylock-stalls.patch
View File

@ -1,616 +0,0 @@
2019-01-31 Carlos O'Donell <carlos@redhat.com>
Torvald Riegel <triegel@redhat.com>
Rik Prohaska <prohaska7@gmail.com>
[BZ# 23844]
* nptl/Makefile (tests): Add tst-rwlock-tryrdlock-stall, and
tst-rwlock-trywrlock-stall.
* nptl/pthread_rwlock_tryrdlock.c (__pthread_rwlock_tryrdlock):
Wake waiters if PTHREAD_RWLOCK_FUTEX_USED is set.
* nptl/pthread_rwlock_trywrlock.c (__pthread_rwlock_trywrlock):
Set __wrphase_fute to 1 only if we started the write phase.
* nptl/tst-rwlock-tryrdlock-stall.c: New file.
* nptl/tst-rwlock-trywrlock-stall.c: New file.
* support/Makefile (libsupport-routines): Add xpthread_rwlock_destroy.
* support/xpthread_rwlock_destroy.c: New file.
* support/xthread.h: Declare xpthread_rwlock_destroy.
Index: glibc-2.29/nptl/Makefile
===================================================================
--- glibc-2.29.orig/nptl/Makefile
+++ glibc-2.29/nptl/Makefile
@@ -319,7 +319,8 @@ tests = tst-attr1 tst-attr2 tst-attr3 ts
tst-cnd-basic tst-mtx-trylock tst-cnd-broadcast \
tst-cnd-timedwait tst-thrd-detach tst-mtx-basic tst-thrd-sleep \
tst-mtx-recursive tst-tss-basic tst-call-once tst-mtx-timedlock \
- tst-rwlock-pwn
+ tst-rwlock-pwn \
+ tst-rwlock-tryrdlock-stall tst-rwlock-trywrlock-stall
tests-internal := tst-rwlock19 tst-rwlock20 \
tst-sem11 tst-sem12 tst-sem13 \
Index: glibc-2.29/nptl/pthread_rwlock_tryrdlock.c
===================================================================
--- glibc-2.29.orig/nptl/pthread_rwlock_tryrdlock.c
+++ glibc-2.29/nptl/pthread_rwlock_tryrdlock.c
@@ -94,15 +94,22 @@ __pthread_rwlock_tryrdlock (pthread_rwlo
/* Same as in __pthread_rwlock_rdlock_full:
We started the read phase, so we are also responsible for
updating the write-phase futex. Relaxed MO is sufficient.
- Note that there can be no other reader that we have to wake
- because all other readers will see the read phase started by us
- (or they will try to start it themselves); if a writer started
- the read phase, we cannot have started it. Furthermore, we
- cannot discard a PTHREAD_RWLOCK_FUTEX_USED flag because we will
- overwrite the value set by the most recent writer (or the readers
- before it in case of explicit hand-over) and we know that there
- are no waiting readers. */
- atomic_store_relaxed (&rwlock->__data.__wrphase_futex, 0);
+ We have to do the same steps as a writer would when handing over the
+ read phase to use because other readers cannot distinguish between
+ us and the writer.
+ Note that __pthread_rwlock_tryrdlock callers will not have to be
+ woken up because they will either see the read phase started by us
+ or they will try to start it themselves; however, callers of
+ __pthread_rwlock_rdlock_full just increase the reader count and then
+ check what state the lock is in, so they cannot distinguish between
+ us and a writer that acquired and released the lock in the
+ meantime. */
+ if ((atomic_exchange_relaxed (&rwlock->__data.__wrphase_futex, 0)
+ & PTHREAD_RWLOCK_FUTEX_USED) != 0)
+ {
+ int private = __pthread_rwlock_get_private (rwlock);
+ futex_wake (&rwlock->__data.__wrphase_futex, INT_MAX, private);
+ }
}
return 0;
Index: glibc-2.29/nptl/pthread_rwlock_trywrlock.c
===================================================================
--- glibc-2.29.orig/nptl/pthread_rwlock_trywrlock.c
+++ glibc-2.29/nptl/pthread_rwlock_trywrlock.c
@@ -46,8 +46,15 @@ __pthread_rwlock_trywrlock (pthread_rwlo
&rwlock->__data.__readers, &r,
r | PTHREAD_RWLOCK_WRPHASE | PTHREAD_RWLOCK_WRLOCKED))
{
+ /* We have become the primary writer and we cannot have shared
+ the PTHREAD_RWLOCK_FUTEX_USED flag with someone else, so we
+ can simply enable blocking (see full wrlock code). */
atomic_store_relaxed (&rwlock->__data.__writers_futex, 1);
- atomic_store_relaxed (&rwlock->__data.__wrphase_futex, 1);
+ /* If we started a write phase, we need to enable readers to
+ wait. If we did not, we must not change it because other threads
+ may have set the PTHREAD_RWLOCK_FUTEX_USED in the meantime. */
+ if ((r & PTHREAD_RWLOCK_WRPHASE) == 0)
+ atomic_store_relaxed (&rwlock->__data.__wrphase_futex, 1);
atomic_store_relaxed (&rwlock->__data.__cur_writer,
THREAD_GETMEM (THREAD_SELF, tid));
return 0;
Index: glibc-2.29/nptl/tst-rwlock-tryrdlock-stall.c
===================================================================
--- /dev/null
+++ glibc-2.29/nptl/tst-rwlock-tryrdlock-stall.c
@@ -0,0 +1,355 @@
+/* Bug 23844: Test for pthread_rwlock_tryrdlock stalls.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* For a full analysis see comment:
+ https://sourceware.org/bugzilla/show_bug.cgi?id=23844#c14
+
+ Provided here for reference:
+
+ --- Analysis of pthread_rwlock_tryrdlock() stall ---
+ A read lock begins to execute.
+
+ In __pthread_rwlock_rdlock_full:
+
+ We can attempt a read lock, but find that the lock is
+ in a write phase (PTHREAD_RWLOCK_WRPHASE, or WP-bit
+ is set), and the lock is held by a primary writer
+ (PTHREAD_RWLOCK_WRLOCKED is set). In this case we must
+ wait for explicit hand over from the writer to us or
+ one of the other waiters. The read lock threads are
+ about to execute:
+
+ 341 r = (atomic_fetch_add_acquire (&rwlock->__data.__readers,
+ 342 (1 << PTHREAD_RWLOCK_READER_SHIFT))
+ 343 + (1 << PTHREAD_RWLOCK_READER_SHIFT));
+
+ An unlock beings to execute.
+
+ Then in __pthread_rwlock_wrunlock:
+
+ 547 unsigned int r = atomic_load_relaxed (&rwlock->__data.__readers);
+ ...
+ 549 while (!atomic_compare_exchange_weak_release
+ 550 (&rwlock->__data.__readers, &r,
+ 551 ((r ^ PTHREAD_RWLOCK_WRLOCKED)
+ 552 ^ ((r >> PTHREAD_RWLOCK_READER_SHIFT) == 0 ? 0
+ 553 : PTHREAD_RWLOCK_WRPHASE))))
+ 554 {
+ ...
+ 556 }
+
+ We clear PTHREAD_RWLOCK_WRLOCKED, and if there are
+ no readers so we leave the lock in PTHRAD_RWLOCK_WRPHASE.
+
+ Back in the read lock.
+
+ The read lock adjusts __readres as above.
+
+ 383 while ((r & PTHREAD_RWLOCK_WRPHASE) != 0
+ 384 && (r & PTHREAD_RWLOCK_WRLOCKED) == 0)
+ 385 {
+ ...
+ 390 if (atomic_compare_exchange_weak_acquire (&rwlock->__data.__readers, &r,
+ 391 r ^ PTHREAD_RWLOCK_WRPHASE))
+ 392 {
+
+ And then attemps to start the read phase.
+
+ Assume there happens to be a tryrdlock at this point, noting
+ that PTHREAD_RWLOCK_WRLOCKED is clear, and PTHREAD_RWLOCK_WRPHASE
+ is 1. So the try lock attemps to start the read phase.
+
+ In __pthread_rwlock_tryrdlock:
+
+ 44 if ((r & PTHREAD_RWLOCK_WRPHASE) == 0)
+ 45 {
+ ...
+ 49 if (((r & PTHREAD_RWLOCK_WRLOCKED) != 0)
+ 50 && (rwlock->__data.__flags
+ 51 == PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP))
+ 52 return EBUSY;
+ 53 rnew = r + (1 << PTHREAD_RWLOCK_READER_SHIFT);
+ 54 }
+ ...
+ 89 while (!atomic_compare_exchange_weak_acquire (&rwlock->__data.__readers,
+ 90 &r, rnew));
+
+ And succeeds.
+
+ Back in the write unlock:
+
+ 557 if ((r >> PTHREAD_RWLOCK_READER_SHIFT) != 0)
+ 558 {
+ ...
+ 563 if ((atomic_exchange_relaxed (&rwlock->__data.__wrphase_futex, 0)
+ 564 & PTHREAD_RWLOCK_FUTEX_USED) != 0)
+ 565 futex_wake (&rwlock->__data.__wrphase_futex, INT_MAX, private);
+ 566 }
+
+ We note that PTHREAD_RWLOCK_FUTEX_USED is non-zero
+ and don't wake anyone. This is OK because we handed
+ over to the trylock. It will be the trylock's responsibility
+ to wake any waiters.
+
+ Back in the read lock:
+
+ The read lock fails to install PTHRAD_REWLOCK_WRPHASE as 0 because
+ the __readers value was adjusted by the trylock, and so it falls through
+ to waiting on the lock for explicit handover from either a new writer
+ or a new reader.
+
+ 448 int err = futex_abstimed_wait (&rwlock->__data.__wrphase_futex,
+ 449 1 | PTHREAD_RWLOCK_FUTEX_USED,
+ 450 abstime, private);
+
+ We use PTHREAD_RWLOCK_FUTEX_USED to indicate the futex
+ is in use.
+
+ At this point we have readers waiting on the read lock
+ to unlock. The wrlock is done. The trylock is finishing
+ the installation of the read phase.
+
+ 92 if ((r & PTHREAD_RWLOCK_WRPHASE) != 0)
+ 93 {
+ ...
+ 105 atomic_store_relaxed (&rwlock->__data.__wrphase_futex, 0);
+ 106 }
+
+ The trylock does note that we were the one that
+ installed the read phase, but the comments are not
+ correct, the execution ordering above shows that
+ readers might indeed be waiting, and they are.
+
+ The atomic_store_relaxed throws away PTHREAD_RWLOCK_FUTEX_USED,
+ and the waiting reader is never worken becuase as noted
+ above it is conditional on the futex being used.
+
+ The solution is for the trylock thread to inspect
+ PTHREAD_RWLOCK_FUTEX_USED and wake the waiting readers.
+
+ --- Analysis of pthread_rwlock_trywrlock() stall ---
+
+ A write lock begins to execute, takes the write lock,
+ and then releases the lock...
+
+ In pthread_rwlock_wrunlock():
+
+ 547 unsigned int r = atomic_load_relaxed (&rwlock->__data.__readers);
+ ...
+ 549 while (!atomic_compare_exchange_weak_release
+ 550 (&rwlock->__data.__readers, &r,
+ 551 ((r ^ PTHREAD_RWLOCK_WRLOCKED)
+ 552 ^ ((r >> PTHREAD_RWLOCK_READER_SHIFT) == 0 ? 0
+ 553 : PTHREAD_RWLOCK_WRPHASE))))
+ 554 {
+ ...
+ 556 }
+
+ ... leaving it in the write phase with zero readers
+ (the case where we leave the write phase in place
+ during a write unlock).
+
+ A write trylock begins to execute.
+
+ In __pthread_rwlock_trywrlock:
+
+ 40 while (((r & PTHREAD_RWLOCK_WRLOCKED) == 0)
+ 41 && (((r >> PTHREAD_RWLOCK_READER_SHIFT) == 0)
+ 42 || (prefer_writer && ((r & PTHREAD_RWLOCK_WRPHASE) != 0))))
+ 43 {
+
+ The lock is not locked.
+
+ There are no readers.
+
+ 45 if (atomic_compare_exchange_weak_acquire (
+ 46 &rwlock->__data.__readers, &r,
+ 47 r | PTHREAD_RWLOCK_WRPHASE | PTHREAD_RWLOCK_WRLOCKED))
+
+ We atomically install the write phase and we take the
+ exclusive write lock.
+
+ 48 {
+ 49 atomic_store_relaxed (&rwlock->__data.__writers_futex, 1);
+
+ We get this far.
+
+ A reader lock begins to execute.
+
+ In pthread_rwlock_rdlock:
+
+ 437 for (;;)
+ 438 {
+ 439 while (((wpf = atomic_load_relaxed (&rwlock->__data.__wrphase_futex))
+ 440 | PTHREAD_RWLOCK_FUTEX_USED) == (1 | PTHREAD_RWLOCK_FUTEX_USED))
+ 441 {
+ 442 int private = __pthread_rwlock_get_private (rwlock);
+ 443 if (((wpf & PTHREAD_RWLOCK_FUTEX_USED) == 0)
+ 444 && (!atomic_compare_exchange_weak_relaxed
+ 445 (&rwlock->__data.__wrphase_futex,
+ 446 &wpf, wpf | PTHREAD_RWLOCK_FUTEX_USED)))
+ 447 continue;
+ 448 int err = futex_abstimed_wait (&rwlock->__data.__wrphase_futex,
+ 449 1 | PTHREAD_RWLOCK_FUTEX_USED,
+ 450 abstime, private);
+
+ We are in a write phase, so the while() on line 439 is true.
+
+ The value of wpf does not have PTHREAD_RWLOCK_FUTEX_USED set
+ since this is the first reader to lock.
+
+ The atomic operation sets wpf with PTHREAD_RELOCK_FUTEX_USED
+ on the expectation that this reader will be woken during
+ the handoff.
+
+ Back in pthread_rwlock_trywrlock:
+
+ 50 atomic_store_relaxed (&rwlock->__data.__wrphase_futex, 1);
+ 51 atomic_store_relaxed (&rwlock->__data.__cur_writer,
+ 52 THREAD_GETMEM (THREAD_SELF, tid));
+ 53 return 0;
+ 54 }
+ ...
+ 57 }
+
+ We write 1 to __wrphase_futex discarding PTHREAD_RWLOCK_FUTEX_USED,
+ and so in the unlock we will not awaken the waiting reader.
+
+ The solution to this is to realize that if we did not start the write
+ phase we need not write 1 or any other value to __wrphase_futex.
+ This ensures that any readers (which saw __wrphase_futex != 0) can
+ set PTHREAD_RWLOCK_FUTEX_USED and this can be used at unlock to
+ wake them.
+
+ If we installed the write phase then all other readers are looping
+ here:
+
+ In __pthread_rwlock_rdlock_full:
+
+ 437 for (;;)
+ 438 {
+ 439 while (((wpf = atomic_load_relaxed (&rwlock->__data.__wrphase_futex))
+ 440 | PTHREAD_RWLOCK_FUTEX_USED) == (1 | PTHREAD_RWLOCK_FUTEX_USED))
+ 441 {
+ ...
+ 508 }
+
+ waiting for the write phase to be installed or removed before they
+ can begin waiting on __wrphase_futex (part of the algorithm), or
+ taking a concurrent read lock, and thus we can safely write 1 to
+ __wrphase_futex.
+
+ If we did not install the write phase then the readers may already
+ be waiting on the futex, the original writer wrote 1 to __wrphase_futex
+ as part of starting the write phase, and we cannot also write 1
+ without loosing the PTHREAD_RWLOCK_FUTEX_USED bit.
+
+ ---
+
+ Summary for the pthread_rwlock_tryrdlock() stall:
+
+ The stall is caused by pthread_rwlock_tryrdlock failing to check
+ that PTHREAD_RWLOCK_FUTEX_USED is set in the __wrphase_futex futex
+ and then waking the futex.
+
+ The fix for bug 23844 ensures that waiters on __wrphase_futex are
+ correctly woken. Before the fix the test stalls as readers can
+ wait forever on __wrphase_futex. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <support/xthread.h>
+#include <errno.h>
+
+/* We need only one lock to reproduce the issue. We will need multiple
+ threads to get the exact case where we have a read, try, and unlock
+ all interleaving to produce the case where the readers are waiting
+ and the try fails to wake them. */
+pthread_rwlock_t onelock;
+
+/* The number of threads is arbitrary but empirically chosen to have
+ enough threads that we see the condition where waiting readers are
+ not woken by a successful tryrdlock. */
+#define NTHREADS 32
+
+_Atomic int do_exit;
+
+void *
+run_loop (void *arg)
+{
+ int i = 0, ret;
+ while (!do_exit)
+ {
+ /* Arbitrarily choose if we are the writer or reader. Choose a
+ high enough ratio of readers to writers to make it likely
+ that readers block (and eventually are susceptable to
+ stalling).
+
+ If we are a writer, take the write lock, and then unlock.
+ If we are a reader, try the lock, then lock, then unlock. */
+ if ((i % 8) != 0)
+ xpthread_rwlock_wrlock (&onelock);
+ else
+ {
+ if ((ret = pthread_rwlock_tryrdlock (&onelock)) != 0)
+ {
+ if (ret == EBUSY)
+ xpthread_rwlock_rdlock (&onelock);
+ else
+ exit (EXIT_FAILURE);
+ }
+ }
+ /* Thread does some work and then unlocks. */
+ xpthread_rwlock_unlock (&onelock);
+ i++;
+ }
+ return NULL;
+}
+
+int
+do_test (void)
+{
+ int i;
+ pthread_t tids[NTHREADS];
+ xpthread_rwlock_init (&onelock, NULL);
+ for (i = 0; i < NTHREADS; i++)
+ tids[i] = xpthread_create (NULL, run_loop, NULL);
+ /* Run for some amount of time. Empirically speaking exercising
+ the stall via pthread_rwlock_tryrdlock is much harder, and on
+ a 3.5GHz 4 core x86_64 VM system it takes somewhere around
+ 20-200s to stall, approaching 100% stall past 200s. We can't
+ wait that long for a regression test so we just test for 20s,
+ and expect the stall to happen with a 5-10% chance (enough for
+ developers to see). */
+ sleep (20);
+ /* Then exit. */
+ printf ("INFO: Exiting...\n");
+ do_exit = 1;
+ /* If any readers stalled then we will timeout waiting for them. */
+ for (i = 0; i < NTHREADS; i++)
+ xpthread_join (tids[i]);
+ printf ("INFO: Done.\n");
+ xpthread_rwlock_destroy (&onelock);
+ printf ("PASS: No pthread_rwlock_tryrdlock stalls detected.\n");
+ return 0;
+}
+
+#define TIMEOUT 30
+#include <support/test-driver.c>
Index: glibc-2.29/nptl/tst-rwlock-trywrlock-stall.c
===================================================================
--- /dev/null
+++ glibc-2.29/nptl/tst-rwlock-trywrlock-stall.c
@@ -0,0 +1,108 @@
+/* Bug 23844: Test for pthread_rwlock_trywrlock stalls.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* For a full analysis see comments in tst-rwlock-tryrdlock-stall.c.
+
+ Summary for the pthread_rwlock_trywrlock() stall:
+
+ The stall is caused by pthread_rwlock_trywrlock setting
+ __wrphase_futex futex to 1 and loosing the
+ PTHREAD_RWLOCK_FUTEX_USED bit.
+
+ The fix for bug 23844 ensures that waiters on __wrphase_futex are
+ correctly woken. Before the fix the test stalls as readers can
+ wait forever on __wrphase_futex. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <support/xthread.h>
+#include <errno.h>
+
+/* We need only one lock to reproduce the issue. We will need multiple
+ threads to get the exact case where we have a read, try, and unlock
+ all interleaving to produce the case where the readers are waiting
+ and the try clears the PTHREAD_RWLOCK_FUTEX_USED bit and a
+ subsequent unlock fails to wake them. */
+pthread_rwlock_t onelock;
+
+/* The number of threads is arbitrary but empirically chosen to have
+ enough threads that we see the condition where waiting readers are
+ not woken by a successful unlock. */
+#define NTHREADS 32
+
+_Atomic int do_exit;
+
+void *
+run_loop (void *arg)
+{
+ int i = 0, ret;
+ while (!do_exit)
+ {
+ /* Arbitrarily choose if we are the writer or reader. Choose a
+ high enough ratio of readers to writers to make it likely
+ that readers block (and eventually are susceptable to
+ stalling).
+
+ If we are a writer, take the write lock, and then unlock.
+ If we are a reader, try the lock, then lock, then unlock. */
+ if ((i % 8) != 0)
+ {
+ if ((ret = pthread_rwlock_trywrlock (&onelock)) != 0)
+ {
+ if (ret == EBUSY)
+ xpthread_rwlock_wrlock (&onelock);
+ else
+ exit (EXIT_FAILURE);
+ }
+ }
+ else
+ xpthread_rwlock_rdlock (&onelock);
+ /* Thread does some work and then unlocks. */
+ xpthread_rwlock_unlock (&onelock);
+ i++;
+ }
+ return NULL;
+}
+
+int
+do_test (void)
+{
+ int i;
+ pthread_t tids[NTHREADS];
+ xpthread_rwlock_init (&onelock, NULL);
+ for (i = 0; i < NTHREADS; i++)
+ tids[i] = xpthread_create (NULL, run_loop, NULL);
+ /* Run for some amount of time. The pthread_rwlock_tryrwlock stall
+ is very easy to trigger and happens in seconds under the test
+ conditions. */
+ sleep (10);
+ /* Then exit. */
+ printf ("INFO: Exiting...\n");
+ do_exit = 1;
+ /* If any readers stalled then we will timeout waiting for them. */
+ for (i = 0; i < NTHREADS; i++)
+ xpthread_join (tids[i]);
+ printf ("INFO: Done.\n");
+ xpthread_rwlock_destroy (&onelock);
+ printf ("PASS: No pthread_rwlock_tryrwlock stalls detected.\n");
+ return 0;
+}
+
+#include <support/test-driver.c>
Index: glibc-2.29/support/Makefile
===================================================================
--- glibc-2.29.orig/support/Makefile
+++ glibc-2.29/support/Makefile
@@ -129,6 +129,7 @@ libsupport-routines = \
xpthread_mutexattr_settype \
xpthread_once \
xpthread_rwlock_init \
+ xpthread_rwlock_destroy \
xpthread_rwlock_rdlock \
xpthread_rwlock_unlock \
xpthread_rwlock_wrlock \
Index: glibc-2.29/support/xpthread_rwlock_destroy.c
===================================================================
--- /dev/null
+++ glibc-2.29/support/xpthread_rwlock_destroy.c
@@ -0,0 +1,26 @@
+/* pthread_rwlock_destroy with error checking.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <support/xthread.h>
+
+void
+xpthread_rwlock_destroy (pthread_rwlock_t *rwlock)
+{
+ xpthread_check_return ("pthread_rwlock_destroy",
+ pthread_rwlock_destroy (rwlock));
+}
Index: glibc-2.29/support/xthread.h
===================================================================
--- glibc-2.29.orig/support/xthread.h
+++ glibc-2.29/support/xthread.h
@@ -84,6 +84,7 @@ void xpthread_rwlockattr_setkind_np (pth
void xpthread_rwlock_wrlock (pthread_rwlock_t *rwlock);
void xpthread_rwlock_rdlock (pthread_rwlock_t *rwlock);
void xpthread_rwlock_unlock (pthread_rwlock_t *rwlock);
+void xpthread_rwlock_destroy (pthread_rwlock_t *rwlock);
__END_DECLS

25
regex-read-overrun.patch
View File

@ -1,25 +0,0 @@
2019-01-31 Paul Eggert <eggert@cs.ucla.edu>
regex: fix read overrun [BZ #24114]
Problem found by AddressSanitizer, reported by Hongxu Chen in:
https://debbugs.gnu.org/34140
* posix/regexec.c (proceed_next_node):
Do not read past end of input buffer.
Index: glibc-2.29/posix/regexec.c
===================================================================
--- glibc-2.29.orig/posix/regexec.c
+++ glibc-2.29/posix/regexec.c
@@ -1293,8 +1293,10 @@ proceed_next_node (const re_match_contex
else if (naccepted)
{
char *buf = (char *) re_string_get_buffer (&mctx->input);
- if (memcmp (buf + regs[subexp_idx].rm_so, buf + *pidx,
- naccepted) != 0)
+ if (mctx->input.valid_len - *pidx < naccepted
+ || (memcmp (buf + regs[subexp_idx].rm_so, buf + *pidx,
+ naccepted)
+ != 0))
return -1;
}
}

119
riscv-clone-unwind.patch
View File

@ -1,119 +0,0 @@
2019-01-13 Jim Wilson <jimw@sifive.com>
[BZ #24040]
* elf/Makefile (CFLAGS-tst-unwind-main.c): Add -DUSE_PTHREADS=0.
* elf/tst-unwind-main.c: If USE_PTHEADS, include pthread.h and error.h
(func): New.
(main): If USE_PTHREADS, call pthread_create to run func. Otherwise
call func directly.
* nptl/Makefile (tests): Add tst-unwind-thread.
(CFLAGS-tst-unwind-thread.c): Define.
* nptl/tst-unwind-thread.c: New file.
* sysdeps/unix/sysv/linux/riscv/clone.S (__thread_start): Mark ra
as undefined.
Index: glibc-2.29/elf/Makefile
===================================================================
--- glibc-2.29.orig/elf/Makefile
+++ glibc-2.29/elf/Makefile
@@ -1497,4 +1497,4 @@ $(objpfx)tst-big-note: $(objpfx)tst-big-
$(objpfx)tst-unwind-ctor: $(objpfx)tst-unwind-ctor-lib.so
-CFLAGS-tst-unwind-main.c += -funwind-tables
+CFLAGS-tst-unwind-main.c += -funwind-tables -DUSE_PTHREADS=0
Index: glibc-2.29/elf/tst-unwind-main.c
===================================================================
--- glibc-2.29.orig/elf/tst-unwind-main.c
+++ glibc-2.29/elf/tst-unwind-main.c
@@ -20,19 +20,41 @@
#include <unistd.h>
#include <support/test-driver.h>
+#if USE_PTHREADS
+# include <pthread.h>
+# include <error.h>
+#endif
+
static _Unwind_Reason_Code
callback (struct _Unwind_Context *ctx, void *arg)
{
return _URC_NO_REASON;
}
-int
-main (void)
+static void *
+func (void *a)
{
/* Arrange for this test to be killed if _Unwind_Backtrace runs into an
endless loop. We cannot use the test driver because the complete
call chain needs to be compiled with -funwind-tables so that
- _Unwind_Backtrace is able to reach _start. */
+ _Unwind_Backtrace is able to reach the start routine. */
alarm (DEFAULT_TIMEOUT);
_Unwind_Backtrace (callback, 0);
+ return a;
+}
+
+int
+main (void)
+{
+#if USE_PTHREADS
+ pthread_t thr;
+ int rc = pthread_create (&thr, NULL, &func, NULL);
+ if (rc)
+ error (1, rc, "pthread_create");
+ rc = pthread_join (thr, NULL);
+ if (rc)
+ error (1, rc, "pthread_join");
+#else
+ func (NULL);
+#endif
}
Index: glibc-2.29/nptl/Makefile
===================================================================
--- glibc-2.29.orig/nptl/Makefile
+++ glibc-2.29/nptl/Makefile
@@ -320,7 +320,8 @@ tests = tst-attr1 tst-attr2 tst-attr3 ts
tst-cnd-timedwait tst-thrd-detach tst-mtx-basic tst-thrd-sleep \
tst-mtx-recursive tst-tss-basic tst-call-once tst-mtx-timedlock \
tst-rwlock-pwn \
- tst-rwlock-tryrdlock-stall tst-rwlock-trywrlock-stall
+ tst-rwlock-tryrdlock-stall tst-rwlock-trywrlock-stall \
+ tst-unwind-thread
tests-internal := tst-rwlock19 tst-rwlock20 \
tst-sem11 tst-sem12 tst-sem13 \
@@ -710,6 +711,8 @@ $(objpfx)tst-audit-threads: $(objpfx)tst
$(objpfx)tst-audit-threads.out: $(objpfx)tst-audit-threads-mod1.so
tst-audit-threads-ENV = LD_AUDIT=$(objpfx)tst-audit-threads-mod1.so
+CFLAGS-tst-unwind-thread.c += -funwind-tables
+
# The tests here better do not run in parallel
ifneq ($(filter %tests,$(MAKECMDGOALS)),)
.NOTPARALLEL:
Index: glibc-2.29/nptl/tst-unwind-thread.c
===================================================================
--- /dev/null
+++ glibc-2.29/nptl/tst-unwind-thread.c
@@ -0,0 +1,2 @@
+#define USE_PTHREADS 1
+#include "../elf/tst-unwind-main.c"
Index: glibc-2.29/sysdeps/unix/sysv/linux/riscv/clone.S
===================================================================
--- glibc-2.29.orig/sysdeps/unix/sysv/linux/riscv/clone.S
+++ glibc-2.29/sysdeps/unix/sysv/linux/riscv/clone.S
@@ -69,6 +69,11 @@ L (error):
ENTRY (__thread_start)
L (thread_start):
+ /* Terminate call stack by noting ra is undefined. Use a dummy
+ .cfi_label to force starting the FDE. */
+ .cfi_label .Ldummy
+ cfi_undefined (ra)
+
/* Restore the arg for user's function. */
REG_L a1,0(sp) /* Function pointer. */
REG_L a0,SZREG(sp) /* Argument pointer. */

19
s390-vx-vxe-hwcap.patch
View File

@ -1,19 +0,0 @@
2019-03-21 Stefan Liebler <stli@linux.ibm.com>
* sysdeps/s390/dl-procinfo.h (HWCAP_IMPORTANT):
Add HWCAP_S390_VX and HWCAP_S390_VXE.
Index: glibc-2.29/sysdeps/s390/dl-procinfo.h
===================================================================
--- glibc-2.29.orig/sysdeps/s390/dl-procinfo.h
+++ glibc-2.29/sysdeps/s390/dl-procinfo.h
@@ -57,7 +57,8 @@ enum
};
#define HWCAP_IMPORTANT (HWCAP_S390_ZARCH | HWCAP_S390_LDISP \
- | HWCAP_S390_EIMM | HWCAP_S390_DFP)
+ | HWCAP_S390_EIMM | HWCAP_S390_DFP \
+ | HWCAP_S390_VX | HWCAP_S390_VXE)
/* We cannot provide a general printing function. */
#define _dl_procinfo(type, word) -1

19
taisho-era-string.patch
View File

@ -1,19 +0,0 @@
2019-03-02 TAMUKI Shoichi <tamuki@linet.gr.jp>
[BZ #24162]
* localedata/locales/ja_JP (LC_TIME): Change the offset for Taisho
gan-nen from 2 to 1. Problem reported by Morimitsu, Junji.
Index: glibc-2.29/localedata/locales/ja_JP
===================================================================
--- glibc-2.29.orig/localedata/locales/ja_JP
+++ glibc-2.29/localedata/locales/ja_JP
@@ -14953,7 +14953,7 @@ era "+:2:2020//01//01:+*:<U4EE4><U548C>:
"+:2:1927//01//01:1989//01//07:<U662D><U548C>:%EC%Ey<U5E74>";/
"+:1:1926//12//25:1926//12//31:<U662D><U548C>:%EC<U5143><U5E74>";/
"+:2:1913//01//01:1926//12//24:<U5927><U6B63>:%EC%Ey<U5E74>";/
- "+:2:1912//07//30:1912//12//31:<U5927><U6B63>:%EC<U5143><U5E74>";/
+ "+:1:1912//07//30:1912//12//31:<U5927><U6B63>:%EC<U5143><U5E74>";/
"+:6:1873//01//01:1912//07//29:<U660E><U6CBB>:%EC%Ey<U5E74>";/
"+:1:0001//01//01:1872//12//31:<U897F><U66A6>:%EC%Ey<U5E74>";/
"+:1:-0001//12//31:-*:<U7D00><U5143><U524D>:%EC%Ey<U5E74>"

100
wfile-sync-crash.patch
View File

@ -1,100 +0,0 @@
2019-05-15 Andreas Schwab <schwab@suse.de>
[BZ #20568]
* libio/wfileops.c (_IO_wfile_sync): Correct last argument to
__codecvt_do_length.
* libio/Makefile (tests): Add tst-wfile-sync.
($(objpfx)tst-wfile-sync.out): Depend on $(gen-locales).
* libio/tst-wfile-sync.c: New file.
* libio/tst-wfile-sync.input: New file.
Index: glibc-2.29/libio/Makefile
===================================================================
--- glibc-2.29.orig/libio/Makefile
+++ glibc-2.29/libio/Makefile
@@ -65,7 +65,7 @@ tests = tst_swprintf tst_wprintf tst_sws
tst-setvbuf1 tst-popen1 tst-fgetwc bug-wsetpos tst-fseek \
tst-fwrite-error tst-ftell-partial-wide tst-ftell-active-handler \
tst-ftell-append tst-fputws tst-bz22415 tst-fgetc-after-eof \
- tst-sprintf-ub tst-sprintf-chk-ub
+ tst-sprintf-ub tst-sprintf-chk-ub tst-wfile-sync
tests-internal = tst-vtables tst-vtables-interposed tst-readline
@@ -212,6 +212,7 @@ $(objpfx)tst-ungetwc1.out: $(gen-locales
$(objpfx)tst-ungetwc2.out: $(gen-locales)
$(objpfx)tst-widetext.out: $(gen-locales)
$(objpfx)tst_wprintf2.out: $(gen-locales)
+$(objpfx)tst-wfile-sync.out: $(gen-locales)
endif
$(objpfx)test-freopen.out: test-freopen.sh $(objpfx)test-freopen
Index: glibc-2.29/libio/tst-wfile-sync.c
===================================================================
--- /dev/null
+++ glibc-2.29/libio/tst-wfile-sync.c
@@ -0,0 +1,39 @@
+/* Test that _IO_wfile_sync does not crash (bug 20568).
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <locale.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <support/check.h>
+#include <support/xunistd.h>
+
+static int
+do_test (void)
+{
+ TEST_VERIFY_EXIT (setlocale (LC_ALL, "de_DE.UTF-8") != NULL);
+ /* Fill the stdio buffer and advance the read pointer. */
+ TEST_VERIFY_EXIT (fgetwc (stdin) != WEOF);
+ /* This calls _IO_wfile_sync, it should not crash. */
+ TEST_VERIFY_EXIT (setvbuf (stdin, NULL, _IONBF, 0) == 0);
+ /* Verify that the external file offset has been synchronized. */
+ TEST_COMPARE (xlseek (0, 0, SEEK_CUR), 1);
+
+ return 0;
+}
+
+#include <support/test-driver.c>
Index: glibc-2.29/libio/tst-wfile-sync.input
===================================================================
--- /dev/null
+++ glibc-2.29/libio/tst-wfile-sync.input
@@ -0,0 +1 @@
+This is a test of _IO_wfile_sync.
Index: glibc-2.29/libio/wfileops.c
===================================================================
--- glibc-2.29.orig/libio/wfileops.c
+++ glibc-2.29/libio/wfileops.c
@@ -508,11 +508,12 @@ _IO_wfile_sync (FILE *fp)
generate the wide characters up to the current reading
position. */
int nread;
-
+ size_t wnread = (fp->_wide_data->_IO_read_ptr
+ - fp->_wide_data->_IO_read_base);
fp->_wide_data->_IO_state = fp->_wide_data->_IO_last_state;
nread = (*cv->__codecvt_do_length) (cv, &fp->_wide_data->_IO_state,
fp->_IO_read_base,
- fp->_IO_read_end, delta);
+ fp->_IO_read_end, wnread);
fp->_IO_read_ptr = fp->_IO_read_base + nread;
delta = -(fp->_IO_read_end - fp->_IO_read_base - nread);
}