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Author SHA1 Message Date
Al Viro
031b656698 unify SS_ONSTACK/SS_DISABLE definitions 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-12-19 18:07:39 -05:00
Al Viro
1ca97bb541 new helper: current_user_stack_pointer() 
Cross-architecture equivalent of rdusp(); default is
user_stack_pointer(current_pt_regs()) - that works for almost all
platforms that have usp saved in pt_regs.  The only exception from
that is ia64 - we want memory stack, not the backing store for
register one.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-12-19 18:07:39 -05:00
Al Viro
5208ba24e7 missing user_stack_pointer() instances 
for the architectures that have usp in pt_regs and do not have
user_stack_pointer() already defined.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-12-19 18:07:39 -05:00
Al Viro
ae903caae2 Bury the conditionals from kernel_thread/kernel_execve series 
All architectures have
	CONFIG_GENERIC_KERNEL_THREAD
	CONFIG_GENERIC_KERNEL_EXECVE
	__ARCH_WANT_SYS_EXECVE
None of them have __ARCH_WANT_KERNEL_EXECVE and there are only two callers
of kernel_execve() (which is a trivial wrapper for do_execve() now) left.
Kill the conditionals and make both callers use do_execve().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-12-19 18:07:38 -05:00
Al Viro
4683661388 COMPAT_SYSCALL_DEFINE: infrastructure 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-12-19 18:06:58 -05:00
Al Viro
541880d9a2 do_coredump(): get rid of pt_regs argument 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-29 00:01:25 -05:00
Al Viro
4aaefee589 print_fatal_signal(): get rid of pt_regs argument 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-29 00:01:25 -05:00
Al Viro
94eb22d505 ptrace_signal(): get rid of unused arguments 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-29 00:01:24 -05:00
Al Viro
b7f9591c44 get rid of ptrace_signal_deliver() arguments 
the first one is equal to signal_pt_regs(), the second is never used
(and always NULL, while we are at it).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-29 00:01:24 -05:00
Al Viro
22062a9630 new helper: signal_pt_regs() 
Always equal to task_pt_regs(current); defined only when we are in
signal delivery.  It may be different from current_pt_regs() - e.g.
architectures like m68k may have pt_regs location on exception
different from that on a syscall and signals (just as ptrace handling)
may happen on exceptions as well as on syscalls.

When they are equal, it's often better to have signal_pt_regs
defined (in asm/ptrace.h) as current_pt_regs - that tends to be
optimized better than default would be.  However, optimisation is
the only reason why we might want an arch-specific definition;
if current_pt_regs() and task_pt_regs(current) have different
values, the latter one is right.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-29 00:01:23 -05:00
Al Viro
4f4202fe5a unify default ptrace_signal_deliver 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-29 00:01:23 -05:00
Al Viro
e80d6661c3 flagday: kill pt_regs argument of do_fork() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-29 00:01:08 -05:00
Al Viro
18c26c27ae death to idle_regs() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 23:43:42 -05:00
Al Viro
62e791c1b8 don't pass regs to copy_process() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 23:43:42 -05:00
Al Viro
afa86fc426 flagday: don't pass regs to copy_thread() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 23:43:42 -05:00
Al Viro
135c37b83c bfin: switch to generic vfork, get rid of pointless wrappers 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 23:43:41 -05:00
Al Viro
3e41f9ba61 xtensa: switch to generic clone() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 23:43:41 -05:00
Al Viro
39d91a9eaf openrisc: switch to use of generic fork and clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 23:43:40 -05:00
Al Viro
cb56217362 unicore32: switch to generic clone(2) 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 23:43:40 -05:00
Al Viro
eda9697702 score: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 23:43:40 -05:00
Al Viro
951b39619a c6x: sanitize copy_thread(), get rid of clone(2) wrapper, switch to generic clone() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 23:43:39 -05:00
Al Viro
24465a40ba take sys_fork/sys_vfork/sys_clone prototypes to linux/syscalls.h 
now it can be done...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 23:43:27 -05:00
Al Viro
1ea2a01605 mn10300: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:47:24 -05:00
Al Viro
3416e8098a h8300: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:46:54 -05:00
Al Viro
e9eac30418 tile: switch to generic clone() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:46:37 -05:00
Al Viro
20ecc91c32 m68k: sanitize copy_thread(), fork/vfork/clone wrappers, switch to generic fork/vfork 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:44:46 -05:00
Al Viro
dfe09ae0e5 alpha: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:44:45 -05:00
Al Viro
87f1ca8fd9 s390: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:44:37 -05:00
Al Viro
f3268edbe6 microblaze: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
 2012-11-28 22:43:40 -05:00
Al Viro
f01aceac61 hexagon: switch to generic clone() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:42:44 -05:00
Al Viro
0ad9513d0f sh: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:36:47 -05:00
Al Viro
415bfae9e9 parisc: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:36:46 -05:00
Al Viro
92bbe6cdfd m32r: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:36:46 -05:00
Al Viro
27d892fb27 cris: switch to generic fork/vfork/clone 
same braindamage as on s390 - the first two arguments of clone(2) in the
wrong order.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:36:46 -05:00
Al Viro
584271bcb4 avr32: sanitize copy_thread(), switch to generic fork/vfork/clone, kill wrappers 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:36:45 -05:00
Al Viro
9ac0800213 arm64: sanitize copy_thread(), switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:36:33 -05:00
Al Viro
b9763ce33f frv: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:16:06 -05:00
Al Viro
0bcfe54049 powerpc: switch to generic fork/clone/vfork 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:14:55 -05:00
Al Viro
38a61b6b4a arm: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:13:54 -05:00
Al Viro
1d4b4b2994 x86, um: switch to generic fork/vfork/clone 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 22:13:44 -05:00
Al Viro
71613c3b87 get rid of pt_regs argument of ->load_binary() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 21:53:38 -05:00
Al Viro
3c456bfc4b get rid of pt_regs argument of search_binary_handler() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 21:53:38 -05:00
Al Viro
835ab32dff get rid of pt_regs argument of do_execve_common() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 21:53:37 -05:00
Al Viro
da3d4c5fa5 get rid of pt_regs argument of do_execve() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 21:53:37 -05:00
Al Viro
d03d26e58f make compat_do_execve() static, lose pt_regs argument 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 21:53:37 -05:00
Al Viro
910cdc553a kill stray kernel_thread() garbage 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 21:53:36 -05:00
Al Viro
c62d773a37 audit: no nested contexts anymore... 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 21:53:36 -05:00
Al Viro
6b94631f9e consolidate sys_execve() prototype 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 21:53:35 -05:00
Al Viro
f4091322d7 Merge branches 'no-rebases', 'arch-avr32', 'arch-blackfin', 'arch-cris', 'arch-h8300', 'arch-m32r', 'arch-mn10300', 'arch-score', 'arch-sh' and 'arch-powerpc' into for-next 2012-11-28 21:52:07 -05:00
Al Viro
d2125043ae generic sys_fork / sys_vfork / sys_clone 
... and get rid of idiotic struct pt_regs * in asm-generic/syscalls.h
prototypes of the same, while we are at it.  Eventually we want those
in linux/syscalls.h, of course, but that'll have to wait a bit.

Note that there are *three* variants of sys_clone() order of arguments.
Braindamage galore...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-11-28 21:49:04 -05:00