diff options
| author | Michael Neuling <mikey@neuling.org> | 2012-12-20 14:06:44 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-01-10 17:01:44 +1100 |
| commit | 9422de3e953d0e60eb95f5430a9dd803eec1c6d7 (patch) | |
| tree | 7255a4a2b873a0c3daf7b312a0845202edf6b2d5 /arch/powerpc/mm/fault.c | |
| parent | a8190a59e7440a7e3f7c0889d72a13e157988b3c (diff) | |
powerpc: Hardware breakpoints rewrite to handle non DABR breakpoint registers
This is a rewrite so that we don't assume we are using the DABR throughout the
code. We now use the arch_hw_breakpoint to store the breakpoint in a generic
manner in the thread_struct, rather than storing the raw DABR value.
The ptrace GET/SET_DEBUGREG interface currently passes the raw DABR in from
userspace. We keep this functionality, so that future changes (like the POWER8
DAWR), will still fake the DABR to userspace.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm/fault.c')
| -rw-r--r-- | arch/powerpc/mm/fault.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 3a8489a354e9..229951ffc351 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -249,8 +249,8 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address, #if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE) || \ defined(CONFIG_PPC_BOOK3S_64)) if (error_code & DSISR_DABRMATCH) { - /* DABR match */ - do_dabr(regs, address, error_code); + /* breakpoint match */ + do_break(regs, address, error_code); return 0; } #endif |