Jeff Mahoney 8faa545b70 tracing: Fix ftrace_event_call alignment for use with gcc 4.5 ... commit 86c38a31aa upstream. GCC 4.5 introduces behavior that forces the alignment of structures to use the largest possible value. The default value is 32 bytes, so if some structures are defined with a 4-byte alignment and others aren't declared with an alignment constraint at all - it will align at 32-bytes. For things like the ftrace events, this results in a non-standard array. When initializing the ftrace subsystem, we traverse the _ftrace_events section and call the initialization callback for each event. When the structures are misaligned, we could be treating another part of the structure (or the zeroed out space between them) as a function pointer. This patch forces the alignment for all the ftrace_event_call structures to 4 bytes. Without this patch, the kernel fails to boot very early when built with gcc 4.5. It's trivial to check the alignment of the members of the array, so it might be worthwhile to add something to the build system to do that automatically. Unfortunately, that only covers this case. I've asked one of the gcc developers about adding a warning when this condition is seen. Cc: stable@kernel.org Signed-off-by: Jeff Mahoney <jeffm@suse.com> LKML-Reference: <4B85770B.6010901@suse.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Cc: Andreas Radke <a.radke@arcor.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2010-05-12 14:57:14 -07:00
..
gcov	microblaze: Enable GCOV_PROFILE_ALL	2009-09-21 14:29:21 +02:00
irq	genirq: Force MSI irq handlers to run with interrupts disabled	2010-04-26 07:41:18 -07:00
power	Freezer: Fix buggy resume test for tasks frozen with cgroup freezer	2010-04-26 07:41:17 -07:00
time	hrtimer: Tune hrtimer_interrupt hang logic	2010-04-01 15:58:14 -07:00
trace	tracing: Fix ftrace_event_call alignment for use with gcc 4.5	2010-05-12 14:57:14 -07:00
.gitignore
acct.c	bsdacct: fix uid/gid misreporting	2009-12-18 14:03:52 -08:00
async.c
audit_tree.c	fix more leaks in audit_tree.c tag_chunk()	2010-01-18 10:19:50 -08:00
audit_watch.c	Audit: reorganize struct audit_watch to save 8 bytes	2009-09-24 03:50:25 -04:00
audit.c	Audit: send signal info if selinux is disabled	2009-09-24 03:50:26 -04:00
audit.h
auditfilter.c
auditsc.c	Audit: rearrange audit_context to save 16 bytes per struct	2009-09-24 03:50:26 -04:00
backtracetest.c
bounds.c
capability.c
cgroup_freezer.c	Freezer: Fix buggy resume test for tasks frozen with cgroup freezer	2010-04-26 07:41:17 -07:00
cgroup.c	cgroups: fix 2.6.32 regression causing BUG_ON() in cgroup_diput()	2010-01-18 10:19:32 -08:00
compat.c
configs.c
cpu.c	timers, init: Limit the number of per cpu calibration bootup messages	2010-01-28 15:01:14 -08:00
cpuset.c	cpuset: fix the problem that cpuset_mem_spread_node() returns an offline node	2010-04-01 15:58:46 -07:00
cred-internals.h
cred.c	CRED: Fix a race in creds_are_invalid() in credentials debugging	2010-05-12 14:57:10 -07:00
delayacct.c	headers: taskstats_kern.h trim	2009-09-18 09:48:52 -07:00
dma.c
exec_domain.c
exit.c	connector: fix regression introduced by sid connector	2009-10-29 07:39:25 -07:00
extable.c
fork.c	Correct nr_processes() when CPUs have been unplugged	2009-11-03 07:52:39 -08:00
freezer.c
futex_compat.c
futex.c	futex: Handle futex value corruption gracefully	2010-02-23 07:37:43 -08:00
groups.c
hrtimer.c	hrtimer: Tune hrtimer_interrupt hang logic	2010-04-01 15:58:14 -07:00
hung_task.c	sysctl: remove "struct file *" argument of ->proc_handler	2009-09-24 07:21:04 -07:00
itimer.c
kallsyms.c	kallsyms: use new arch_is_kernel_text()	2009-09-23 07:39:30 -07:00
Kconfig.freezer
Kconfig.hz
Kconfig.preempt
kexec.c
kfifo.c	kfifo: Use "const" definitions	2009-09-19 13:13:17 -07:00
kgdb.c
kmod.c	Revert "kmod: fix race in usermodehelper code"	2009-09-23 18:12:10 -07:00
kprobes.c	const: constify remaining file_operations	2009-10-01 16:11:11 -07:00
ksysfs.c
kthread.c	cpuset: fix the problem that cpuset_mem_spread_node() returns an offline node	2010-04-01 15:58:46 -07:00
latencytop.c
lockdep_internals.h
lockdep_proc.c	seq_file: constify seq_operations	2009-09-23 07:39:29 -07:00
lockdep_states.h
lockdep.c	lockdep: fix incorrect percpu usage	2010-04-26 07:41:35 -07:00
Makefile	SLOW_WORK: Move slow_work's proc file to debugfs	2009-12-01 08:20:31 -08:00
module.c	modules: fix incorrect percpu usage	2010-04-26 07:41:34 -07:00
mutex-debug.c	headers: remove sched.h from interrupt.h	2009-10-11 11:20:58 -07:00
mutex-debug.h
mutex.c
mutex.h
notifier.c
ns_cgroup.c	cgroups: let ss->can_attach and ss->attach do whole threadgroups at a time	2009-09-24 07:20:58 -07:00
nsproxy.c
panic.c	Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-10-08 12:16:35 -07:00
params.c	param: fix setting arrays of bool	2009-10-29 08:56:20 +10:30
perf_event.c	perf: Fix resource leak in failure path of perf_event_open()	2010-05-12 14:57:05 -07:00
pid_namespace.c	pidns: deny CLONE_PARENT|CLONE_NEWPID combination	2009-09-24 07:21:04 -07:00
pid.c	mm: also use alloc_large_system_hash() for the PID hash table	2009-09-22 07:17:38 -07:00
pm_qos_params.c
posix-cpu-timers.c
posix-timers.c
printk.c	printk: add printk_delay to make messages readable for some scenarios	2009-09-23 07:39:28 -07:00
profile.c	kernel/profile.c: Switch /proc/irq/prof_cpu_mask to seq_file	2009-09-20 20:15:40 +02:00
ptrace.c	ptrace: __ptrace_detach: do __wake_up_parent() if we reap the tracee	2009-09-24 07:20:59 -07:00
rcupdate.c	rcu: Move rcu_barrier() to rcutree	2009-10-07 08:11:20 +02:00
rcutorture.c	rcu: Clean up code to address Ingo's checkpatch feedback	2009-09-23 19:46:30 +02:00
rcutree_plugin.h	rcu: Remove inline from forward-referenced functions	2009-12-18 14:03:04 -08:00
rcutree_trace.c	rcu: Make hot-unplugged CPU relinquish its own RCU callbacks	2009-10-07 08:11:20 +02:00
rcutree.c	rcu: Fix note_new_gpnum() uses of ->gpnum	2009-12-18 14:03:01 -08:00
rcutree.h	rcu: Remove inline from forward-referenced functions	2009-12-18 14:03:04 -08:00
relay.c	const: mark struct vm_struct_operations	2009-09-27 11:39:25 -07:00
res_counter.c	memcg: some modification to softlimit under hierarchical memory reclaim.	2009-10-01 16:11:13 -07:00
resource.c	walk system ram range	2009-09-23 07:39:41 -07:00
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rwsem.c
sched_clock.c	sched: Fix cpu_clock() in NMIs, on !CONFIG_HAVE_UNSTABLE_SCHED_CLOCK	2010-01-22 15:18:30 -08:00
sched_cpupri.c
sched_cpupri.h
sched_debug.c	sched: Rate-limit newidle	2009-12-18 14:03:13 -08:00
sched_fair.c	sched: Fix missing sched tunable recalculation on cpu add/remove	2010-01-28 15:01:11 -08:00
sched_features.h	sched: Add new wakeup preemption mode: WAKEUP_RUNNING	2009-09-17 10:17:25 +02:00
sched_idletask.c	sched: Simplify sys_sched_rr_get_interval() system call	2009-09-21 09:53:55 +02:00
sched_rt.c	sched: Simplify sys_sched_rr_get_interval() system call	2009-09-21 09:53:55 +02:00
sched_stats.h
sched.c	sched: Use proper type in sched_getaffinity()	2010-04-26 07:41:37 -07:00
seccomp.c
semaphore.c
signal.c	kernel/signal.c: fix kernel information leak with print-fatal-signals=1	2010-01-18 10:19:33 -08:00
slow-work-debugfs.c	SLOW_WORK: Move slow_work's proc file to debugfs	2009-12-01 08:20:31 -08:00
slow-work.c	SLOW_WORK: Move slow_work's proc file to debugfs	2009-12-01 08:20:31 -08:00
slow-work.h	SLOW_WORK: Move slow_work's proc file to debugfs	2009-12-01 08:20:31 -08:00
smp.c	cpumask: remove arch_send_call_function_ipi	2009-09-24 09:34:47 +09:30
softirq.c	softirq: add BLOCK_IOPOLL to softirq_to_name	2009-09-17 15:53:44 -04:00
softlockup.c	softlockup: Stop spurious softlockup messages due to overflow	2010-04-01 15:58:47 -07:00
spinlock.c
srcu.c
stacktrace.c
stop_machine.c
sys_ni.c	Merge branch 'master' of /home/davem/src/GIT/linux-2.6/	2009-09-24 15:13:11 -07:00
sys.c	Merge branch 'hwpoison-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6	2009-10-29 08:20:00 -07:00
sysctl_check.c	NET: fix oops at bootime in sysctl code	2010-02-09 04:51:02 -08:00
sysctl.c	kernel/sysctl.c: fix stable merge error in NOMMU mmap_min_addr	2010-01-18 10:19:49 -08:00
taskstats.c
test_kprobes.c
time.c	time: Prevent 32 bit overflow with set_normalized_timespec()	2009-09-15 10:17:30 +02:00
timeconst.pl
timer.c	Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-09-23 09:46:15 -07:00
tracepoint.c	trivial: fix typo "to to" in multiple files	2009-09-21 15:14:55 +02:00
tsacct.c
uid16.c	headers: utsname.h redux	2009-09-23 18:13:10 -07:00
up.c
user_namespace.c
user.c	uids: Prevent tear down race	2009-11-02 16:02:39 +01:00
utsname_sysctl.c	sysctl: remove "struct file *" argument of ->proc_handler	2009-09-24 07:21:04 -07:00
utsname.c
wait.c
workqueue.c	workqueue: fix race condition in schedule_on_each_cpu()	2009-11-17 17:40:33 -08:00