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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
[not found] <bug-9894-131@http.sourceware.org/bugzilla/>
@ 2012-02-19 2:20 ` jsm28 at gcc dot gnu.org
2012-08-03 14:12 ` jsm28 at gcc dot gnu.org
` (8 subsequent siblings)
9 siblings, 0 replies; 21+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-02-19 2:20 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
--- Comment #12 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-02-19 02:19:53 UTC ---
Could you update the patches for current sources (taking account of ia64 no
longer being included) and for any implementations for additional architectures
in the mean time? (Patches for any additional ports architectures are
optional, but the libc patch needs updating.)
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
[not found] <bug-9894-131@http.sourceware.org/bugzilla/>
2012-02-19 2:20 ` [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18 jsm28 at gcc dot gnu.org
@ 2012-08-03 14:12 ` jsm28 at gcc dot gnu.org
2012-12-19 10:40 ` schwab@linux-m68k.org
` (7 subsequent siblings)
9 siblings, 0 replies; 21+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-08-03 14:12 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
--- Comment #13 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-08-03 14:11:51 UTC ---
Aurelien, ping regarding updating the patches for current sources and kernels.
You mentioned that you were trying to review kernel-features.h generally - but
incremental patches that actually exist, updating things only for some macros
or some architectures, are better than ideal complete patches that don't exist
- try to send small pieces to libc-alpha (CC libc-ports where ports
kernel-features.h headers are updated as well) each of which fixes some
particular problem without making things worse in any case.
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
[not found] <bug-9894-131@http.sourceware.org/bugzilla/>
2012-02-19 2:20 ` [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18 jsm28 at gcc dot gnu.org
2012-08-03 14:12 ` jsm28 at gcc dot gnu.org
@ 2012-12-19 10:40 ` schwab@linux-m68k.org
2013-10-09 8:21 ` neleai at seznam dot cz
` (6 subsequent siblings)
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From: schwab@linux-m68k.org @ 2012-12-19 10:40 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|drepper.fsp at gmail dot |unassigned at sourceware
|com |dot org
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
[not found] <bug-9894-131@http.sourceware.org/bugzilla/>
` (2 preceding siblings ...)
2012-12-19 10:40 ` schwab@linux-m68k.org
@ 2013-10-09 8:21 ` neleai at seznam dot cz
2014-03-31 12:56 ` cvs-commit at gcc dot gnu.org
` (5 subsequent siblings)
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From: neleai at seznam dot cz @ 2013-10-09 8:21 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=9894
Ondrej Bilka <neleai at seznam dot cz> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
CC| |neleai at seznam dot cz
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
[not found] <bug-9894-131@http.sourceware.org/bugzilla/>
` (3 preceding siblings ...)
2013-10-09 8:21 ` neleai at seznam dot cz
@ 2014-03-31 12:56 ` cvs-commit at gcc dot gnu.org
2014-04-30 15:43 ` cvs-commit at gcc dot gnu.org
` (4 subsequent siblings)
9 siblings, 0 replies; 21+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2014-03-31 12:56 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=9894
--- Comment #15 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
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The branch, master has been updated
via 47c5adebd2c864a098c3af66e61e1147dc3cf0b4 (commit)
from d7a68734f7bbc76586017461cff19af0d9cb4df8 (commit)
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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=47c5adebd2c864a098c3af66e61e1147dc3cf0b4
commit 47c5adebd2c864a098c3af66e61e1147dc3cf0b4
Author: Joseph Myers <joseph@codesourcery.com>
Date: Mon Mar 31 12:55:18 2014 +0000
Correct robust mutex / PI futex kernel assumptions (bug 9894).
This patch continues fixing __ASSUME_* issues in preparation for
moving to a 2.6.32 minimum kernel version by addressing assumptions on
robust mutex and PI futex support availability. Those assumptions are
bug 9894, but to be clear this patch does not address all the issues
from that bug about wrong version assumptions, only those still
applicable for --enable-kernel=2.6.32 or later (with the expectation
that the move to that minimum kernel will obsolete the other parts of
the bug). The patch is independent of
<https://sourceware.org/ml/libc-alpha/2014-03/msg00585.html>, my other
pending-review patch preparing for the kernel version change; the two
together complete all the changes I believe are needed in preparation
regarding any macro in sysdeps/unix/sysv/linux/kernel-features.h that
would be affected by such a change. (I have not checked the
correctness of macros whose conditions are unaffected by such a
change, or macros only defined in other kernel-features.h files.)
As discussed in that bug, robust mutexes and PI futexes need
futex_atomic_cmpxchg_inatomic to be implemented, in addition to
certain syscalls needed for robust mutexes (and
architecture-independent kernel pieces for all the features in
question). That is, as I understand it, they need
futex_atomic_cmpxchg_inatomic to *work* (not return an ENOSYS error).
The issues identified in my analysis relate to ARM, M68K, MicroBlaze,
MIPS and SPARC.
On ARM, whether futex_atomic_cmpxchg_inatomic works depends on the
kernel configuration. As of 3.13, the condition for *not* working is
CONFIG_CPU_USE_DOMAINS && CONFIG_SMP. As of 2.6.32 it was simply
CONFIG_SMP that meant the feature was not implemented. I don't know
if there are any circumstances in which we can say "we can assume a
userspace glibc binary built with these options will never run on a
kernel with the problematic configuration", but at least for now I'm
just undefining the relevant __ASSUME_* macros for ARM.
On M68K, two of the three macros are undefined for kernels before
3.10, but as far as I can see __ASSUME_FUTEX_LOCK_PI is in the same
group needing futex_atomic_cmpxchg_inatomic support and so should be
undefined as well.
On MicroBlaze the required support was added in 2.6.33.
On MIPS, the support depends on cpu_has_llsc in the kernel - that is,
actual hardware LL/SC support (GCC and glibc for MIPS GNU/Linux rely
on the instructions being supported in some way, but it may be kernel
emulation; futex_atomic_cmpxchg_inatomic doesn't work with that
emulation). The same condition as in GCC for indicating LL/SC support
may not be available is used for undefining the macros in glibc,
__mips == 1 || defined _MIPS_ARCH_R5900. (Maybe we could in fact
desupport MIPS processors without the hardware support in glibc.)
On SPARC, 32-bit kernels don't support futex_atomic_cmpxchg_inatomic;
__arch64__ || __sparc_v9__ is used as the condition for binaries that
won't run on 32-bit kernels.
This patch is not tested beyond the sanity check of an x86_64 build.
[BZ #9894]
* sysdeps/unix/sysv/linux/kernel-features.h
[__sparc__ && !__arch64__ && !__sparc_v9__]
(__ASSUME_SET_ROBUST_LIST): Do not define.
[__sparc__ && !__arch64__ && !__sparc_v9__]
(__ASSUME_FUTEX_LOCK_PI): Likewise.
[__sparc__ && !__arch64__ && !__sparc_v9__] (__ASSUME_REQUEUE_PI):
Likewise.
* sysdeps/unix/sysv/linux/arm/kernel-features.h
(__ASSUME_FUTEX_LOCK_PI): Undefine.
(__ASSUME_REQUEUE_PI): Likewise.
(__ASSUME_SET_ROBUST_LIST): Likewise.
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
[__LINUX_KERNEL_VERSION < 0x030a00] (__ASSUME_FUTEX_LOCK_PI):
Undefine.
* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
[__LINUX_KERNEL_VERSION < 0x020621] (__ASSUME_FUTEX_LOCK_PI):
Likewise.
[__LINUX_KERNEL_VERSION < 0x020621] (__ASSUME_REQUEUE_PI):
Likewise.
[__LINUX_KERNEL_VERSION < 0x020621] (__ASSUME_SET_ROBUST_LIST):
Likewise.
* sysdeps/unix/sysv/linux/mips/kernel-features.h
[__mips == 1 || _MIPS_ARCH_R5900] (__ASSUME_FUTEX_LOCK_PI):
Undefine.
[__mips == 1 || _MIPS_ARCH_R5900] (__ASSUME_REQUEUE_PI): Likewise.
[__mips == 1 || _MIPS_ARCH_R5900] (__ASSUME_SET_ROBUST_LIST):
Likewise.
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 29 ++++++++++++++++++++
sysdeps/unix/sysv/linux/arm/kernel-features.h | 7 +++++
sysdeps/unix/sysv/linux/kernel-features.h | 20 +++++++++----
sysdeps/unix/sysv/linux/m68k/kernel-features.h | 1 +
.../unix/sysv/linux/microblaze/kernel-features.h | 7 +++++
sysdeps/unix/sysv/linux/mips/kernel-features.h | 8 +++++
6 files changed, 66 insertions(+), 6 deletions(-)
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
[not found] <bug-9894-131@http.sourceware.org/bugzilla/>
` (4 preceding siblings ...)
2014-03-31 12:56 ` cvs-commit at gcc dot gnu.org
@ 2014-04-30 15:43 ` cvs-commit at gcc dot gnu.org
2014-04-30 15:45 ` jsm28 at gcc dot gnu.org
` (3 subsequent siblings)
9 siblings, 0 replies; 21+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2014-04-30 15:43 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=9894
--- Comment #16 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU C Library master sources".
The branch, master has been updated
via d0f5b3f851cfced84e3228977eb8dfdc9c607231 (commit)
from 9a461d467f56a16e199d4c23d3e327eb886035af (commit)
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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d0f5b3f851cfced84e3228977eb8dfdc9c607231
commit d0f5b3f851cfced84e3228977eb8dfdc9c607231
Author: Joseph Myers <joseph@codesourcery.com>
Date: Wed Apr 30 15:39:30 2014 +0000
Increase minimum Linux kernel version to 2.6.32.
This patch increases the minimum Linux kernel version for glibc to
2.6.32, as discussed in the thread starting at
<https://sourceware.org/ml/libc-alpha/2014-01/msg00511.html>.
This patch just does the minimal change to arch_minimum_kernel
settings (and LIBC_LINUX_VERSION, which determines the minimum kernel
headers version, as it doesn't make sense for that to be older than
the minimum kernel that can be used at runtime). Followups would be
expected to do, roughly and not necessarily precisely in this order:
* Remove __LINUX_KERNEL_VERSION checks in kernel-features.h files
where those checks are always true / always false for kernels 2.6.32
and above.
* Otherwise simplify/improve conditionals in those files (for example,
where defining once in the main file then undefining in
architecture-specific files makes things clearer than having lots of
separate definitions of the same macro), possibly fixing in the
process cases where a macro should optimally have been defined for a
given architecture but wasn't. (In the review in preparation for
this version increase I checked what the right conditions should be
for all macros in the main kernel-features.h whose definitions there
would have been affected by the increase - but I only fixed that
subset of the issues found where --enable-kernel=2.6.32 would have
caused a kernel feature to be wrongly assumed to be present, not any
cases where a feature is not assumed but could be assumed.)
* Remove conditionals on __ASSUME_* where they can now be taken to be
always-true, and the definitions when the macros are only used in
Linux-specific files.
* Split more architectures out of the main kernel-features.h (like
ex-ports architectures), once various of the architecture
conditionals there have been eliminated so the new
architecture-specific files are no larger than actually necessary.
Tested x86_64.
2014-03-27 Joseph Myers <joseph@codesourcery.com>
[BZ #9894]
* sysdeps/unix/sysv/linux/configure.ac (LIBC_LINUX_VERSION):
Change to 2.6.32.
(arch_minimum_kernel): Change all 2.6.16 settings to 2.6.32.
* sysdeps/unix/sysv/linux/configure: Regenerated.
* sysdeps/unix/sysv/linux/microblaze/configure.ac: Remove file.
* sysdeps/unix/sysv/linux/microblaze/configure: Likewise.
* sysdeps/unix/sysv/linux/tile/configure.ac: Likewise.
* sysdeps/unix/sysv/linux/tile/configure: Likewise.
* README: Update reference to required Linux kernel version.
* manual/install.texi (Linux): Update reference to required Linux
kernel headers version.
* INSTALL: Regenerated.
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 14 +++++++++
INSTALL | 2 +-
NEWS | 5 +++-
README | 2 +-
manual/install.texi | 2 +-
sysdeps/unix/sysv/linux/configure | 34 +++++++++++-----------
sysdeps/unix/sysv/linux/configure.ac | 18 ++++++------
sysdeps/unix/sysv/linux/microblaze/configure | 4 ---
sysdeps/unix/sysv/linux/microblaze/configure.ac | 4 ---
sysdeps/unix/sysv/linux/tile/configure | 4 ---
sysdeps/unix/sysv/linux/tile/configure.ac | 4 ---
11 files changed, 47 insertions(+), 46 deletions(-)
delete mode 100644 sysdeps/unix/sysv/linux/microblaze/configure
delete mode 100644 sysdeps/unix/sysv/linux/microblaze/configure.ac
delete mode 100644 sysdeps/unix/sysv/linux/tile/configure
delete mode 100644 sysdeps/unix/sysv/linux/tile/configure.ac
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
[not found] <bug-9894-131@http.sourceware.org/bugzilla/>
` (5 preceding siblings ...)
2014-04-30 15:43 ` cvs-commit at gcc dot gnu.org
@ 2014-04-30 15:45 ` jsm28 at gcc dot gnu.org
2014-07-01 20:46 ` fweimer at redhat dot com
` (2 subsequent siblings)
9 siblings, 0 replies; 21+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2014-04-30 15:45 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=9894
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |FIXED
--- Comment #17 from Joseph Myers <jsm28 at gcc dot gnu.org> ---
Fixed for 2.20.
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
[not found] <bug-9894-131@http.sourceware.org/bugzilla/>
` (6 preceding siblings ...)
2014-04-30 15:45 ` jsm28 at gcc dot gnu.org
@ 2014-07-01 20:46 ` fweimer at redhat dot com
2015-06-13 17:10 ` mkl at pengutronix dot de
2015-06-14 14:01 ` jsm28 at gcc dot gnu.org
9 siblings, 0 replies; 21+ messages in thread
From: fweimer at redhat dot com @ 2014-07-01 20:46 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=9894
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
[not found] <bug-9894-131@http.sourceware.org/bugzilla/>
` (7 preceding siblings ...)
2014-07-01 20:46 ` fweimer at redhat dot com
@ 2015-06-13 17:10 ` mkl at pengutronix dot de
2015-06-14 14:01 ` jsm28 at gcc dot gnu.org
9 siblings, 0 replies; 21+ messages in thread
From: mkl at pengutronix dot de @ 2015-06-13 17:10 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=9894
Marc Kleine-Budde <mkl at pengutronix dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
CC| |mkl at pengutronix dot de
Resolution|FIXED |---
--- Comment #19 from Marc Kleine-Budde <mkl at pengutronix dot de> ---
(In reply to Joseph Myers from comment #17)
> Fixed for 2.20.
Commit:
47c5adebd2c8 Correct robust mutex / PI futex kernel assumptions (bug 9894).
Causes a regression on ARM, see Bug 18463.
https://sourceware.org/bugzilla/show_bug.cgi?id=18463
Marc
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
[not found] <bug-9894-131@http.sourceware.org/bugzilla/>
` (8 preceding siblings ...)
2015-06-13 17:10 ` mkl at pengutronix dot de
@ 2015-06-14 14:01 ` jsm28 at gcc dot gnu.org
9 siblings, 0 replies; 21+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2015-06-14 14:01 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=9894
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution|--- |FIXED
--- Comment #20 from Joseph Myers <jsm28 at gcc dot gnu.org> ---
This bug is fixed. Do not try to modify the scope of an existing bug to cover
things not in the accepted scope at the time it was fixed.
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
` (9 preceding siblings ...)
2009-04-15 20:47 ` jsm28 at gcc dot gnu dot org
@ 2009-05-01 10:57 ` aurelien at aurel32 dot net
10 siblings, 0 replies; 21+ messages in thread
From: aurelien at aurel32 dot net @ 2009-05-01 10:57 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aurelien at aurel32 dot net 2009-05-01 10:56 -------
I fully agree that we can do a ports specific patch until the other patch is
applied to libc. However it would be a lot easier to apply the libc patch
first.
What is the problem with the current libc patch? It is not specific to ports as
it also concerns two main architectures from libc, that is sparc and sh.
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
` (8 preceding siblings ...)
2009-02-27 15:09 ` aurelien at aurel32 dot net
@ 2009-04-15 20:47 ` jsm28 at gcc dot gnu dot org
2009-05-01 10:57 ` aurelien at aurel32 dot net
10 siblings, 0 replies; 21+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2009-04-15 20:47 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From jsm28 at gcc dot gnu dot org 2009-04-15 20:47 -------
The ARM and MIPS changes look OK; I haven't applied them because they
depend on the libc changes. It might be useful to do a version of the ports
changes that works with present libc (so conditionally #undefing the macros
after including the libc kernel-features.h), which could be reverted and
replaced with the present patch versions after the libc changes go in.
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
` (7 preceding siblings ...)
2009-02-27 15:09 ` aurelien at aurel32 dot net
@ 2009-02-27 15:09 ` aurelien at aurel32 dot net
2009-04-15 20:47 ` jsm28 at gcc dot gnu dot org
2009-05-01 10:57 ` aurelien at aurel32 dot net
10 siblings, 0 replies; 21+ messages in thread
From: aurelien at aurel32 dot net @ 2009-02-27 15:09 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aurelien at aurel32 dot net 2009-02-27 15:09 -------
Created an attachment (id=3780)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=3780&action=view)
Updated patch for mips
--
What |Removed |Added
----------------------------------------------------------------------------
Attachment #3766 is|0 |1
obsolete| |
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
` (6 preceding siblings ...)
2009-02-27 15:09 ` aurelien at aurel32 dot net
@ 2009-02-27 15:09 ` aurelien at aurel32 dot net
2009-02-27 15:09 ` aurelien at aurel32 dot net
` (2 subsequent siblings)
10 siblings, 0 replies; 21+ messages in thread
From: aurelien at aurel32 dot net @ 2009-02-27 15:09 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aurelien at aurel32 dot net 2009-02-27 15:09 -------
Created an attachment (id=3779)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=3779&action=view)
Updated patch for hppa
--
What |Removed |Added
----------------------------------------------------------------------------
Attachment #3767 is|0 |1
obsolete| |
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
` (5 preceding siblings ...)
2009-02-27 15:08 ` aurelien at aurel32 dot net
@ 2009-02-27 15:09 ` aurelien at aurel32 dot net
2009-02-27 15:09 ` aurelien at aurel32 dot net
` (3 subsequent siblings)
10 siblings, 0 replies; 21+ messages in thread
From: aurelien at aurel32 dot net @ 2009-02-27 15:09 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aurelien at aurel32 dot net 2009-02-27 15:08 -------
Created an attachment (id=3778)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=3778&action=view)
Updated patch for arm
--
What |Removed |Added
----------------------------------------------------------------------------
Attachment #3765 is|0 |1
obsolete| |
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
` (4 preceding siblings ...)
2009-02-27 15:07 ` aurelien at aurel32 dot net
@ 2009-02-27 15:08 ` aurelien at aurel32 dot net
2009-02-27 15:09 ` aurelien at aurel32 dot net
` (4 subsequent siblings)
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From: aurelien at aurel32 dot net @ 2009-02-27 15:08 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aurelien at aurel32 dot net 2009-02-27 15:08 -------
Created an attachment (id=3777)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=3777&action=view)
Updated patch for main architectures
--
What |Removed |Added
----------------------------------------------------------------------------
Attachment #3764 is|0 |1
obsolete| |
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
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^ permalink raw reply [flat|nested] 21+ messages in thread
* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
` (3 preceding siblings ...)
2009-02-24 23:21 ` aurelien at aurel32 dot net
@ 2009-02-27 15:07 ` aurelien at aurel32 dot net
2009-02-27 15:08 ` aurelien at aurel32 dot net
` (5 subsequent siblings)
10 siblings, 0 replies; 21+ messages in thread
From: aurelien at aurel32 dot net @ 2009-02-27 15:07 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aurelien at aurel32 dot net 2009-02-27 15:07 -------
The same problem also exists with robust mutexes and is due to the same problem,
ie they are available when both get/set_robust_list syscalls have been added
*and* futex_atomic_cmpxchg_inatomic() is available. This give the following
availabilities for main
and ports glibc architectures:
- i386: 2.6.17
- ia64: 2.6.19
- powerpc: 2.6.17
- s390: 2.6.18
- sparc: not implemented
- sparc64: 2.6.19
- sh: 2.6.23
- x86_64: 2.6.17
- alpha: not implemented
- arm: 2.6.28
- cris: not implemented
- hppa : 2.6.19
- m68k: not implemented
- mips: 2.6.19
Update patches fixing the problem will follow.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
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* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
2009-02-24 23:20 ` [Bug libc/9894] " aurelien at aurel32 dot net
2009-02-24 23:21 ` aurelien at aurel32 dot net
@ 2009-02-24 23:21 ` aurelien at aurel32 dot net
2009-02-24 23:21 ` aurelien at aurel32 dot net
` (7 subsequent siblings)
10 siblings, 0 replies; 21+ messages in thread
From: aurelien at aurel32 dot net @ 2009-02-24 23:21 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aurelien at aurel32 dot net 2009-02-24 23:21 -------
Created an attachment (id=3767)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=3767&action=view)
patch for hppa
--
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
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^ permalink raw reply [flat|nested] 21+ messages in thread
* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
` (2 preceding siblings ...)
2009-02-24 23:21 ` aurelien at aurel32 dot net
@ 2009-02-24 23:21 ` aurelien at aurel32 dot net
2009-02-27 15:07 ` aurelien at aurel32 dot net
` (6 subsequent siblings)
10 siblings, 0 replies; 21+ messages in thread
From: aurelien at aurel32 dot net @ 2009-02-24 23:21 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aurelien at aurel32 dot net 2009-02-24 23:20 -------
Created an attachment (id=3765)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=3765&action=view)
patch for arm
--
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
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^ permalink raw reply [flat|nested] 21+ messages in thread
* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
2009-02-24 23:20 ` [Bug libc/9894] " aurelien at aurel32 dot net
@ 2009-02-24 23:21 ` aurelien at aurel32 dot net
2009-02-24 23:21 ` aurelien at aurel32 dot net
` (8 subsequent siblings)
10 siblings, 0 replies; 21+ messages in thread
From: aurelien at aurel32 dot net @ 2009-02-24 23:21 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aurelien at aurel32 dot net 2009-02-24 23:21 -------
Created an attachment (id=3766)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=3766&action=view)
patch for mips
--
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
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^ permalink raw reply [flat|nested] 21+ messages in thread
* [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
@ 2009-02-24 23:20 ` aurelien at aurel32 dot net
2009-02-24 23:21 ` aurelien at aurel32 dot net
` (9 subsequent siblings)
10 siblings, 0 replies; 21+ messages in thread
From: aurelien at aurel32 dot net @ 2009-02-24 23:20 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From aurelien at aurel32 dot net 2009-02-24 23:20 -------
Created an attachment (id=3764)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=3764&action=view)
patch for main architecture
--
http://sourceware.org/bugzilla/show_bug.cgi?id=9894
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end of thread, other threads:[~2015-06-14 14:01 UTC | newest]
Thread overview: 21+ messages (download: mbox.gz / follow: Atom feed)
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2012-02-19 2:20 ` [Bug libc/9894] Support for PI futexes wrongly marked as introduced in 2.6.18 jsm28 at gcc dot gnu.org
2012-08-03 14:12 ` jsm28 at gcc dot gnu.org
2012-12-19 10:40 ` schwab@linux-m68k.org
2013-10-09 8:21 ` neleai at seznam dot cz
2014-03-31 12:56 ` cvs-commit at gcc dot gnu.org
2014-04-30 15:43 ` cvs-commit at gcc dot gnu.org
2014-04-30 15:45 ` jsm28 at gcc dot gnu.org
2014-07-01 20:46 ` fweimer at redhat dot com
2015-06-13 17:10 ` mkl at pengutronix dot de
2015-06-14 14:01 ` jsm28 at gcc dot gnu.org
2009-02-24 23:20 [Bug libc/9894] New: " aurelien at aurel32 dot net
2009-02-24 23:20 ` [Bug libc/9894] " aurelien at aurel32 dot net
2009-02-24 23:21 ` aurelien at aurel32 dot net
2009-02-24 23:21 ` aurelien at aurel32 dot net
2009-02-24 23:21 ` aurelien at aurel32 dot net
2009-02-27 15:07 ` aurelien at aurel32 dot net
2009-02-27 15:08 ` aurelien at aurel32 dot net
2009-02-27 15:09 ` aurelien at aurel32 dot net
2009-02-27 15:09 ` aurelien at aurel32 dot net
2009-02-27 15:09 ` aurelien at aurel32 dot net
2009-04-15 20:47 ` jsm28 at gcc dot gnu dot org
2009-05-01 10:57 ` aurelien at aurel32 dot net
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