ARM: hw_breakpoint: unify single-stepping code for watchpoints and breakpoints
The single-stepping code is currently different depending on whether
we are stepping over a breakpoint or a watchpoint. There is no good
reason for this, so let's sort it out.
This patch adds functions for enabling/disabling single-step for
a particular hw_breakpoint and integrates this with the exception
handling code.
Signed-off-by: Will Deacon <will.deacon@arm.com>
diff --git a/arch/arm/include/asm/hw_breakpoint.h b/arch/arm/include/asm/hw_breakpoint.h
index 881429d..f389b27 100644
--- a/arch/arm/include/asm/hw_breakpoint.h
+++ b/arch/arm/include/asm/hw_breakpoint.h
@@ -20,8 +20,8 @@
struct arch_hw_breakpoint {
u32 address;
u32 trigger;
- struct arch_hw_breakpoint_ctrl step_ctrl;
- struct arch_hw_breakpoint_ctrl ctrl;
+ struct arch_hw_breakpoint_ctrl step_ctrl;
+ struct arch_hw_breakpoint_ctrl ctrl;
};
static inline u32 encode_ctrl_reg(struct arch_hw_breakpoint_ctrl ctrl)