davidlt/kernel-ark
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
336,168 Commits 170 Branches 650 Tags 3.6 GiB
6bf9adfc90
Commit Graph

336168 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
Al Viro
6bf9adfc90 introduce generic sys_sigaltstack(), switch x86 and um to it 
Conditional on CONFIG_GENERIC_SIGALTSTACK; architectures that do not
select it are completely unaffected

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-12-19 18:07:40 -05:00
Al Viro
9b064fc3f9 new helper: compat_user_stack_pointer() 
Compat counterpart of current_user_stack_pointer(); for most of the biarch
architectures those two are identical, but e.g. arm64 and arm use different
registers for stack pointer...

Note that amd64 variants of current_user_stack_pointer/compat_user_stack_pointer
do *not* rely on pt_regs having been through FIXUP_TOP_OF_STACK.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-12-19 18:07:40 -05:00
Al Viro
5c49574ffd new helper: restore_altstack() 
to be used by rt_sigreturn instances

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-12-19 18:07:40 -05:00
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