[POWERPC] Make Book-E debug handling SMP safe

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global_dbcr0 needs to be a per cpu set of save areas instead of a single
global on all processors.

Also, we switch to using DBCR0_IDM to determine if the user space app is
being debugged as its a more consistent way.  In the future we should
support features like hardware breakpoint and watchpoints which will
have DBCR0_IDM set but not necessarily DBCR0_IC (single step).

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

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Kumar Gala 2008-04-09 16:15:40 -05:00

parent 3dd82a1ea7

commit 4eaddb4d7e

1 changed files with 21 additions and 9 deletions

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arch/powerpc/kernel/entry_32.S

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