AcoSail/kernel_optimize_test
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5a7b46b369
kernel_optimize_test/kernel
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OGAWA Hirofumi 5a7b46b369 [PATCH] Add more prevent_tail_call() 
Those also break userland regs like following.

   00000000 <sys_chown16>:
      0:	0f b7 44 24 0c       	movzwl 0xc(%esp),%eax
      5:	83 ca ff             	or     $0xffffffff,%edx
      8:	0f b7 4c 24 08       	movzwl 0x8(%esp),%ecx
      d:	66 83 f8 ff          	cmp    $0xffffffff,%ax
     11:	0f 44 c2             	cmove  %edx,%eax
     14:	66 83 f9 ff          	cmp    $0xffffffff,%cx
     18:	0f 45 d1             	cmovne %ecx,%edx
     1b:	89 44 24 0c          	mov    %eax,0xc(%esp)
     1f:	89 54 24 08          	mov    %edx,0x8(%esp)
     23:	e9 fc ff ff ff       	jmp    24 <sys_chown16+0x24>

where the tailcall at the end overwrites the incoming stack-frame.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
[ I would _really_ like to have a way to tell gcc about calling
  conventions. The "prevent_tail_call()" macro is pretty ugly ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19 16:27:18 -07:00
..
irq [PATCH] build kernel/irq/migration.c only if CONFIG_GENERIC_PENDING_IRQ is set 2006-04-11 06:18:41 -07:00
power [PATCH] swsusp: prevent possible image corruption on resume 2006-04-19 09:13:49 -07:00
.gitignore gitignore: ignore more generated files 2006-01-03 11:35:26 +01:00
acct.c [PATCH] Fix pacct bug in multithreading case. 2006-03-31 12:18:54 -08:00
audit.c [PATCH] Don't pass boot parameters to argv_init[] 2006-03-31 12:18:53 -08:00
audit.h [PATCH] sem2mutex: audit_netlink_sem 2006-03-20 14:08:55 -05:00
auditfilter.c [PATCH] sem2mutex: audit_netlink_sem 2006-03-20 14:08:55 -05:00
auditsc.c Merge branch 'audit.b3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current 2006-03-25 09:24:53 -08:00
capability.c [PATCH] refactor capable() to one implementation, add __capable() helper 2006-03-25 08:22:56 -08:00
compat.c [PATCH] lightweight robust futexes: compat 2006-03-27 08:44:49 -08:00
configs.c update the email address of Randy Dunlap 2006-01-03 13:37:51 +01:00
cpu.c [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
cpuset.c [PATCH] cpuset: memory migration interaction fix 2006-03-31 12:18:55 -08:00
dma.c
exec_domain.c [PATCH] Fix module refcount leak in __set_personality() 2006-03-24 07:33:30 -08:00
exit.c [PATCH] task: Make task list manipulations RCU safe 2006-04-19 09:13:49 -07:00
extable.c
fork.c [PATCH] task: Make task list manipulations RCU safe 2006-04-19 09:13:49 -07:00
futex_compat.c [PATCH] futex: check and validate timevals 2006-03-31 12:18:59 -08:00
futex.c [PATCH] futex: check and validate timevals 2006-03-31 12:18:59 -08:00
hrtimer.c [PATCH] add cpu_relax to hrtimer_cancel 2006-04-11 06:18:42 -07:00
intermodule.c [PATCH] missing license tag in intermodule 2006-02-05 11:06:52 -08:00
itimer.c [PATCH] hrtimers: remove data field 2006-03-26 08:57:03 -08:00
kallsyms.c [PATCH] fix missing includes 2005-10-30 17:37:32 -08:00
Kconfig.hz
Kconfig.preempt
kexec.c [PATCH] move capable() to capability.h 2006-01-11 18:42:13 -08:00
kfifo.c [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00
kmod.c [PATCH] wait_for_helper: trivial style cleanup 2006-03-28 18:36:41 -08:00
kprobes.c [PATCH] kretprobe instance recycled by parent process 2006-03-26 08:57:04 -08:00
ksysfs.c [PATCH] fix build error if CONFIG_SYSFS=n 2006-03-24 07:33:31 -08:00
kthread.c [PATCH] find_task_by_pid() needs tasklist_lock 2006-03-25 08:22:57 -08:00
Makefile [PATCH] lightweight robust futexes: compat 2006-03-27 08:44:49 -08:00
module.c [PATCH] modules: permit Dual-MIT/GPL licenses 2006-03-31 12:18:56 -08:00
mutex-debug.c [PATCH] fix/simplify mutex debugging code 2006-01-11 08:14:16 -08:00
mutex-debug.h [PATCH] mutex subsystem, debugging code 2006-01-09 15:59:20 -08:00
mutex.c [PATCH] mutex: trivial whitespace cleanups 2006-01-10 14:27:59 -08:00
mutex.h [PATCH] mutex subsystem, core 2006-01-09 15:59:19 -08:00
panic.c [PATCH] the scheduled unexport of panic_timeout 2006-04-11 06:18:40 -07:00
params.c [PATCH] Change dash2underscore() return value to char 2006-03-28 09:16:03 -08:00
pid.c [PATCH] pidhash: Refactor the pid hash table 2006-03-31 12:19:00 -08:00
posix-cpu-timers.c [PATCH] hrtimer: switch clock_nanosleep to hrtimer nanosleep API 2006-01-10 08:01:38 -08:00
posix-timers.c [PATCH] hrtimers: remove data field 2006-03-26 08:57:03 -08:00
printk.c BUG_ON() Conversion in kernel/printk.c 2006-04-01 01:21:17 +02:00
profile.c [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
ptrace.c [PATCH] fix non-leader exec under ptrace 2006-04-14 08:59:13 -07:00
rcupdate.c [PATCH] rcu_process_callbacks: don't cli() while testing ->nxtlist 2006-03-24 07:33:20 -08:00
rcutorture.c [PATCH] for_each_possible_cpu: fixes for generic part 2006-03-28 09:16:05 -08:00
relay.c [PATCH] relay: consolidate sendfile() and read() code 2006-03-23 19:58:45 +01:00
resource.c [PATCH] kernel/resource.c: __check_region(): remove pointless __deprecated 2006-01-10 08:02:02 -08:00
sched.c [PATCH] sched: don't awaken RT tasks on expired array 2006-04-11 06:18:30 -07:00
seccomp.c
signal.c [PATCH] fix non-leader exec under ptrace 2006-04-14 08:59:13 -07:00
softirq.c [PATCH] on_each_cpu(): disable local interrupts 2006-03-22 07:53:59 -08:00
softlockup.c [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
spinlock.c [PATCH] BUILD_LOCK_OPS: cleanup preempt_disable() usage 2006-03-23 07:38:16 -08:00
stop_machine.c [PATCH] Remove set_fs() in stop_machine() 2006-01-10 08:01:25 -08:00
sys_ni.c [PATCH] frv: define MMU mode specific syscalls as 'cond_syscall' and clean up unneeded macros 2006-04-11 06:18:33 -07:00
sys.c [PATCH] Make setsid() more robust 2006-03-31 12:18:59 -08:00
sysctl.c [PATCH] Range checking in do_proc_dointvec_(userhz_)jiffies_conv 2006-03-24 07:33:20 -08:00
time.c Fix comments: s/granuality/granularity/ 2006-04-01 01:41:22 +02:00
timer.c [PATCH] timer initialisation fix 2006-04-11 06:18:40 -07:00
uid16.c [PATCH] Add more prevent_tail_call() 2006-04-19 16:27:18 -07:00
user.c [PATCH] free_uid() locking improvement 2006-03-24 07:33:20 -08:00
wait.c
workqueue.c [SCSI] add execute_in_process_context() API 2006-02-27 23:34:40 -06:00