linux-toradex.git/arch/microblaze/kernel/ptrace.c, branch tegra

microblaze: Fix sparse warnings - ptrace

2011-03-09T07:09:58+00:00

Warning log:
CHECK   arch/microblaze/kernel/ptrace.c
arch/microblaze/kernel/ptrace.c:126:11: warning: incorrect type in initializer (different address spaces)
arch/microblaze/kernel/ptrace.c:126:11:    expected unknown type 2[noderef] *__pu_addr
arch/microblaze/kernel/ptrace.c:126:11:    got unsigned long *
arch/microblaze/kernel/ptrace.c:134:17: warning: symbol 'do_syscall_trace_enter' was not declared. Should it be static?
arch/microblaze/kernel/ptrace.c:157:17: warning: symbol 'do_syscall_trace_leave' was not declared. Should it be static?

Signed-off-by: Michal Simek

ptrace: cleanup arch_ptrace() on microblaze

2010-10-28T01:03:11+00:00

Remove checking @addr greater than 0 because @addr is now unsigned.

Signed-off-by: Namhyung Kim 
Cc: Michal Simek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ptrace: change signature of arch_ptrace()

2010-10-28T01:03:10+00:00

Fix up the arguments to arch_ptrace() to take account of the fact that
@addr and @data are now unsigned long rather than long as of a preceding
patch in this series.

Signed-off-by: Namhyung Kim 
Cc: 
Acked-by: Roland McGrath 
Acked-by: David Howells 
Acked-by: Geert Uytterhoeven 
Acked-by: David S. Miller 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

microblaze: Fix copy_to_user_page macro

2010-08-04T08:22:31+00:00

copy_to_user_page macro is used in mm/memory.c:access_process_vm
function. This function is called from ptrace code (POKETEXT, POKEDATA)
which write data to memory. Microblaze handle physical address for
caches that's why there is virt_to_phys conversion.

There is potential one location which can caused the problem on WB system.

The important is take a look at write PTRACEs requests
(POKE/TEXT, DATA, USR).

Note:
Majority of Microblaze PTRACE code is moved to generic location
in newer kernel version that's why this solution should work on
the newest kernel version too.

linux/io.h is in cacheflush because of mm/nommu.c

Tested on a WB system - hello world debugging.

Signed-off-by: Michal Simek

microblaze: Remove unused variable from ptrace

2010-04-07T13:47:55+00:00

Patch b3c1e01a09d6af2dd7811a066ffcfc5171be2bed should do it.

Signed-off-by: Michal Simek

microblaze: use generic ptrace_resume code

2010-03-12T23:52:39+00:00

Use the generic ptrace_resume code for PTRACE_SYSCALL, PTRACE_CONT and
PTRACE_KILL.  This also makes PTRACE_SINGLESTEP return -EIO while it
previously succeeded despite not actually causing any kind of single
stepping.

Also the TIF_SYSCALL_TRACE thread flag is now cleared on PTRACE_KILL which
it previously wasn't which is consistent with all architectures using the
modern ptrace code.

Signed-off-by: Christoph Hellwig 
Cc: Oleg Nesterov 
Cc: Roland McGrath 
Acked-by: Michal Simek 
Cc: John Williams 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ptrace: use ptrace_request() in the remaining architectures

2010-03-12T23:52:38+00:00

Use ptrace_request() in the three remaining architectures that didn't use it
(m68knommu, h8300, microblaze).  This means:

 - ptrace_request now handles PTRACE_{PEEK,POKE}{TEXT,DATA} and PTRACE_DETATCH
   calls that were previously called directly, or in case of h8300 even open
   coded.
 - adds new support for PTRACE_SETOPTIONS/PTRACE_GETEVENTMSG/
   PTRACE_GETSIGINFO/PTRACE_SETSIGINFO

Signed-off-by: Christoph Hellwig 
Cc: Geert Uytterhoeven 
Cc: Yoshinori Sato 
Cc: Oleg Nesterov 
Cc: Michal Simek 
Acked-by: Greg Ungerer 
Acked-by: Roland McGrath 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

microblaze: Support ptrace syscall tracing.

2009-09-22T08:00:45+00:00

Signed-off-by: Edgar E. Iglesias 
Signed-off-by: Michal Simek

headers: smp_lock.h redux

2009-07-12T19:22:34+00:00

* Remove smp_lock.h from files which don't need it (including some headers!)
* Add smp_lock.h to files which do need it
* Make smp_lock.h include conditional in hardirq.h
  It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

  This will make hardirq.h inclusion cheaper for every PREEMPT=n config
  (which includes allmodconfig/allyesconfig, BTW)

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Linus Torvalds

microblaze: remove duplicated #include's

2009-04-14T09:09:15+00:00

Remove duplicated #include's in
  arch/microblaze/include/asm/io.h
  arch/microblaze/kernel/prom.c
  arch/microblaze/kernel/ptrace.c
  arch/microblaze/kernel/signal.c
  arch/microblaze/kernel/sys_microblaze.c

Signed-off-by: Huang Weiyi 
Signed-off-by: Michal Simek