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Accepting request 981453 from home:Andreas_Schwab:Factory

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- strncpy-power9-vsx.patch: powerpc: Fix VSX register number on
  __strncpy_power9 (BZ #29197)
- nptl-cleanup-async-restore.patch: nptl: Fix __libc_cleanup_pop_restore
  asynchronous restore (bsc#1200093, BZ #29214)

OBS-URL: https://build.opensuse.org/request/show/981453
OBS-URL: https://build.opensuse.org/package/show/Base:System/glibc?expand=0&rev=616
This commit is contained in:
Andreas Schwab 2022-06-09 07:52:40 +00:00 committed by Git OBS Bridge
parent da57f2c50a
commit 81fec1e654
4 changed files with 198 additions and 0 deletions
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8
glibc.changes
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@ -1,3 +1,11 @@
-------------------------------------------------------------------
Wed Jun 8 13:32:57 UTC 2022 - Andreas Schwab <schwab@suse.de>
- strncpy-power9-vsx.patch: powerpc: Fix VSX register number on
__strncpy_power9 (BZ #29197)
- nptl-cleanup-async-restore.patch: nptl: Fix __libc_cleanup_pop_restore
asynchronous restore (bsc#1200093, BZ #29214)
-------------------------------------------------------------------
Tue May 17 14:07:46 UTC 2022 - Andreas Schwab <schwab@suse.de>

6
glibc.spec
View File

@ -295,6 +295,10 @@ Patch1003: pt-load-invalid-hole.patch
Patch1004: localedef-ld-monetary.patch
# PATCH-FIX-UPSTREAM nptl: Handle spurious EINTR when thread cancellation is disabled (BZ #29029)
Patch1005: nptl-spurious-eintr.patch
# PATCH-FIX-UPSTREAM powerpc: Fix VSX register number on __strncpy_power9 (BZ #29197)
Patch1006: strncpy-power9-vsx.patch
# PATCH-FIX-UPSTREAM nptl: Fix __libc_cleanup_pop_restore asynchronous restore (BZ #29214)
Patch1007: nptl-cleanup-async-restore.patch
###
# Patches awaiting upstream approval
@ -520,6 +524,8 @@ library in a cross compilation setting.
%patch1003 -p1
%patch1004 -p1
%patch1005 -p1
%patch1006 -p1
%patch1007 -p1
%patch2000 -p1
%patch2001 -p1

136
nptl-cleanup-async-restore.patch Normal file
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@ -0,0 +1,136 @@
From 97dd8b3f705b23de1f84713082b631189084a33b Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Tue, 31 May 2022 17:13:35 -0300
Subject: [PATCH] nptl: Fix __libc_cleanup_pop_restore asynchronous restore
(BZ#29214)
This was due a wrong revert done on 404656009b459658.
Checked on x86_64-linux-gnu.
(cherry picked from commit c7d36dcecc08a29825175f65c4ee873ff3177a23)
---
NEWS | 1 +
nptl/libc-cleanup.c | 3 +-
sysdeps/pthread/Makefile | 1 +
sysdeps/pthread/tst-cancel30.c | 82 ++++++++++++++++++++++++++++++++++
4 files changed, 86 insertions(+), 1 deletion(-)
create mode 100644 sysdeps/pthread/tst-cancel30.c
diff --git a/nptl/libc-cleanup.c b/nptl/libc-cleanup.c
index c4a83591bf..2ce59388d4 100644
--- a/nptl/libc-cleanup.c
+++ b/nptl/libc-cleanup.c
@@ -57,7 +57,8 @@ __libc_cleanup_pop_restore (struct _pthread_cleanup_buffer *buffer)
THREAD_SETMEM (self, cleanup, buffer->__prev);
int cancelhandling = atomic_load_relaxed (&self->cancelhandling);
- if (cancelhandling & CANCELTYPE_BITMASK)
+ if (buffer->__canceltype != PTHREAD_CANCEL_DEFERRED
+ && (cancelhandling & CANCELTYPE_BITMASK) == 0)
{
int newval;
do
diff --git a/sysdeps/pthread/Makefile b/sysdeps/pthread/Makefile
index c725586308..3a505c5f99 100644
--- a/sysdeps/pthread/Makefile
+++ b/sysdeps/pthread/Makefile
@@ -126,6 +126,7 @@ tests += tst-cnd-basic tst-mtx-trylock tst-cnd-broadcast \
tst-pthread-raise-blocked-self \
tst-pthread_kill-exited \
tst-pthread_kill-exiting \
+ tst-cancel30 \
# tests
tests-time64 := \
diff --git a/sysdeps/pthread/tst-cancel30.c b/sysdeps/pthread/tst-cancel30.c
new file mode 100644
index 0000000000..e08392f968
--- /dev/null
+++ b/sysdeps/pthread/tst-cancel30.c
@@ -0,0 +1,82 @@
+/* Check if printf like functions does not disable asynchronous cancellation
+ mode (BZ#29214).
+
+ Copyright (C) 2022 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <support/check.h>
+#include <support/xstdio.h>
+#include <support/xthread.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+static pthread_barrier_t b;
+
+static void *
+tf (void *arg)
+{
+ int old;
+
+ TEST_COMPARE (pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, NULL), 0);
+
+ TEST_COMPARE (pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old), 0);
+ TEST_COMPARE (old, PTHREAD_CANCEL_ASYNCHRONOUS);
+
+ /* Check if internal lock cleanup routines restore the cancellation type
+ correctly. */
+ printf ("...\n");
+ TEST_COMPARE (pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old), 0);
+ TEST_COMPARE (old, PTHREAD_CANCEL_ASYNCHRONOUS);
+
+ xpthread_barrier_wait (&b);
+
+ /* Wait indefinitely for cancellation, which only works if asynchronous
+ cancellation is enabled. */
+#ifdef SYS_pause
+ syscall (SYS_pause);
+#elif defined SYS_ppoll || defined SYS_ppoll_time64
+# ifndef SYS_ppoll_time64
+# define SYS_ppoll_time64 SYS_ppoll
+# endif
+ syscall (SYS_ppoll_time64, NULL, 0, NULL, NULL);
+#else
+ for (;;);
+#endif
+
+ return 0;
+}
+
+static int
+do_test (void)
+{
+ xpthread_barrier_init (&b, NULL, 2);
+
+ pthread_t th = xpthread_create (NULL, tf, NULL);
+
+ xpthread_barrier_wait (&b);
+
+ xpthread_cancel (th);
+
+ void *status = xpthread_join (th);
+ TEST_VERIFY (status == PTHREAD_CANCELED);
+
+ return 0;
+}
+
+/* There is no need to wait full TIMEOUT if asynchronous is not working. */
+#define TIMEOUT 3
+#include <support/test-driver.c>
--
2.35.3

48
strncpy-power9-vsx.patch Normal file
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@ -0,0 +1,48 @@
From 0a1572b8bb880a63d50a63b2afe4bb67704ac23e Mon Sep 17 00:00:00 2001
From: Matheus Castanho <msc@linux.ibm.com>
Date: Tue, 7 Jun 2022 10:27:26 -0300
Subject: [PATCH] powerpc: Fix VSX register number on __strncpy_power9 [BZ
#29197]
__strncpy_power9 initializes VR 18 with zeroes to be used throughout the
code, including when zero-padding the destination string. However, the
v18 reference was mistakenly being used for stxv and stxvl, which take a
VSX vector as operand. The code ended up using the uninitialized VSR 18
register by mistake.
Both occurrences have been changed to use the proper VSX number for VR 18
(i.e. VSR 50).
Tested on powerpc, powerpc64 and powerpc64le.
Signed-off-by: Kewen Lin <linkw@gcc.gnu.org>
(cherry picked from commit 0218463dd8265ed937622f88ac68c7d984fe0cfc)
---
sysdeps/powerpc/powerpc64/le/power9/strncpy.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sysdeps/powerpc/powerpc64/le/power9/strncpy.S b/sysdeps/powerpc/powerpc64/le/power9/strncpy.S
index ae23161316..deb94671cc 100644
--- a/sysdeps/powerpc/powerpc64/le/power9/strncpy.S
+++ b/sysdeps/powerpc/powerpc64/le/power9/strncpy.S
@@ -352,7 +352,7 @@ L(zero_padding_loop):
cmpldi cr6,r5,16 /* Check if length was reached. */
ble cr6,L(zero_padding_end)
- stxv v18,0(r11)
+ stxv 32+v18,0(r11)
addi r11,r11,16
addi r5,r5,-16
@@ -360,7 +360,7 @@ L(zero_padding_loop):
L(zero_padding_end):
sldi r10,r5,56 /* stxvl wants size in top 8 bits */
- stxvl v18,r11,r10 /* Partial store */
+ stxvl 32+v18,r11,r10 /* Partial store */
blr
.align 4
--
2.35.3