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-rw-r--r--arch/arm/kernel/entry-header.S19
1 files changed, 0 insertions, 19 deletions
diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
index 83e29adced6c..9a8531eadd3d 100644
--- a/arch/arm/kernel/entry-header.S
+++ b/arch/arm/kernel/entry-header.S
@@ -163,25 +163,6 @@
.endm
#endif /* !CONFIG_THUMB2_KERNEL */
- @
- @ Debug exceptions are taken as prefetch or data aborts.
- @ We must disable preemption during the handler so that
- @ we can access the debug registers safely.
- @
- .macro debug_entry, fsr
-#if defined(CONFIG_HAVE_HW_BREAKPOINT) && defined(CONFIG_PREEMPT)
- ldr r4, =0x40f @ mask out fsr.fs
- and r5, r4, \fsr
- cmp r5, #2 @ debug exception
- bne 1f
- get_thread_info r10
- ldr r6, [r10, #TI_PREEMPT] @ get preempt count
- add r11, r6, #1 @ increment it
- str r11, [r10, #TI_PREEMPT]
-1:
-#endif
- .endm
-
/*
* These are the registers used in the syscall handler, and allow us to
* have in theory up to 7 arguments to a function - r0 to r6.