linux.git/arch/powerpc/kernel/kgdb.c, branch v3.8

powerpc: kernel/kgdb.c: Fix memory leakage

2013-01-28T23:18:15+00:00

the variable backup_current_thread_info isn't freed before existing the
function.

Signed-off-by: Cong Ding 
Signed-off-by: Benjamin Herrenschmidt

powerpc/kgdb: Restore current_thread_info properly

2012-08-24T10:26:06+00:00

For powerpc BooKE and e200, singlestep is handled on the critical/dbg
exception stack. This causes current_thread_info() to fail for kgdb
internal, so previously We work around this issue by copying
the thread_info from the kernel stack before calling kgdb_handle_exception,
and copying it back afterwards.

But actually we don't do this properly. We should backup current_thread_info
then restore that when exit.

Signed-off-by: Tiejun Chen 
Signed-off-by: Benjamin Herrenschmidt

powerpc/kgdb: Bail out of KGDB when we've been triggered

2012-08-24T10:26:05+00:00

We need to skip a breakpoint exception when it occurs after
a breakpoint has already been removed.

Signed-off-by: Tiejun Chen 
Signed-off-by: Benjamin Herrenschmidt

powerpc/kgdb: Do not set kgdb_single_step on ppc

2012-08-24T10:26:05+00:00

The kgdb_single_step flag has the possibility to indefinitely
hang the system on an SMP system.

The x86 arch have the same problem, and that problem was fixed by
commit 8097551d9ab9b9e3630(kgdb,x86: do not set kgdb_single_step
on x86). This patch does the same behaviors as x86's patch.

Signed-off-by: Dongdong Deng 
Signed-off-by: Jason Wessel 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Fix fallout from system.h split up

2012-04-02T04:00:03+00:00

Signed-off-by: Stephen Rothwell 
Signed-off-by: Benjamin Herrenschmidt

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2011-05-23T16:12:26+00:00

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  b43: fix comment typo reqest -> request
  Haavard Skinnemoen has left Atmel
  cris: typo in mach-fs Makefile
  Kconfig: fix copy/paste-ism for dell-wmi-aio driver
  doc: timers-howto: fix a typo ("unsgined")
  perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c
  md, raid5: Fix spelling error in comment ('Ofcourse' --> 'Of course').
  treewide: fix a few typos in comments
  regulator: change debug statement be consistent with the style of the rest
  Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations"
  audit: acquire creds selectively to reduce atomic op overhead
  rtlwifi: don't touch with treewide double semicolon removal
  treewide: cleanup continuations and remove logging message whitespace
  ath9k_hw: don't touch with treewide double semicolon removal
  include/linux/leds-regulator.h: fix syntax in example code
  tty: fix typo in descripton of tty_termios_encode_baud_rate
  xtensa: remove obsolete BKL kernel option from defconfig
  m68k: fix comment typo 'occcured'
  arch:Kconfig.locks Remove unused config option.
  treewide: remove extra semicolons
  ...

powerpc: Remove call sites of MSG_ALL_BUT_SELF

2011-05-19T04:30:46+00:00

The only user of MSG_ALL_BUT_SELF in the whole kernel tree is powerpc,
and it only uses it to start the debugger. Both debuggers always call
smp_send_debugger_break with MSG_ALL_BUT_SELF, and only mpic can do
anything more optimal than a loop over all online cpus, but all message
passing implementations have to code for this special delivery target.

Convert smp_send_debugger_break to take void and loop calling the smp_ops
message_pass function for each of the other cpus in the online cpumask.

Use raw_smp_processor_id() because we are either entering the debugger
or trying to start kdump and the additional warning it not useful were
it to trigger.

Signed-off-by: Milton Miller 
Signed-off-by: Benjamin Herrenschmidt

treewide: fix a few typos in comments

2011-05-10T08:16:21+00:00

- kenrel -> kernel
- whetehr -> whether
- ttt -> tt
- sss -> ss

Signed-off-by: Justin P. Mattock 
Signed-off-by: Jiri Kosina

kgdb,ppc: Fix regression in evr register handling

2010-11-17T19:54:58+00:00

Commit ff10b88b5a05c8f1646dd15fb9f6093c1384ff6d (kgdb,ppc: Individual
register get/set for ppc) introduced a problem where memcpy was used
incorrectly to read and write the evr registers with a kernel that
has:

CONFIG_FSL_BOOKE=y
CONFIG_SPE=y
CONFIG_KGDB=y

This patch also fixes the following compilation problems:

arch/powerpc/kernel/kgdb.c: In function 'dbg_get_reg':
arch/powerpc/kernel/kgdb.c:341: error: passing argument 2 of 'memcpy' makes pointer from integer without a cast
arch/powerpc/kernel/kgdb.c: In function 'dbg_set_reg':
arch/powerpc/kernel/kgdb.c:366: error: passing argument 1 of 'memcpy' makes pointer from integer without a cast

[jason.wessel@windriver.com: Remove void * casts and fix patch header]
Reported-by: Milton Miller 
Signed-off-by: Dongdong Deng 
Acked-by: Kumar Gala 
Signed-off-by: Jason Wessel 
CC: linuxppc-dev@lists.ozlabs.org

kgdb,ppc: Individual register get/set for ppc

2010-10-29T18:14:42+00:00

commit 534af1082329392bc29f6badf815e69ae2ae0f4c(kgdb,kdb: individual
register set and and get API) introduce dbg_get_reg/dbg_set_reg API
for individual register get and set.

This patch implement those APIs for ppc.

Signed-off-by: Dongdong Deng 
Signed-off-by: Jason Wessel