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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2009-08-13 20:38:17 +0200 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2009-08-13 20:34:37 +0200 |
| commit | 0d928b0b616d1c5c5fe76019a87cba171ca91633 (patch) | |
| tree | db71283925be4df3ea3cf66f9a3eab5f4f349a06 /arch/arm/kernel | |
| parent | 181f817eaaca4c1f8a9c265d339d2b96de8b245d (diff) | |
Complete irq tracing support for ARM
Before this patch enabling and disabling irqs in assembler code and by
the hardware wasn't tracked completly.
I had to transpose two instructions in arch/arm/lib/bitops.h because
restore_irqs doesn't preserve the flags with CONFIG_TRACE_IRQFLAGS=y
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/entry-armv.S | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index fc8af43c500..792abd0dfae 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -151,6 +151,8 @@ ENDPROC(__und_invalid) @ r4 - orig_r0 (see pt_regs definition in ptrace.h) @ stmia r5, {r0 - r4} + + asm_trace_hardirqs_off .endm .align 5 @@ -206,9 +208,6 @@ ENDPROC(__dabt_svc) __irq_svc: svc_entry -#ifdef CONFIG_TRACE_IRQFLAGS - bl trace_hardirqs_off -#endif #ifdef CONFIG_PREEMPT get_thread_info tsk ldr r8, [tsk, #TI_PREEMPT] @ get preempt count @@ -383,6 +382,8 @@ ENDPROC(__pabt_svc) @ Clear FP to mark the first stack frame @ zero_fp + + asm_trace_hardirqs_off .endm .macro kuser_cmpxchg_check @@ -437,9 +438,6 @@ __irq_usr: usr_entry kuser_cmpxchg_check -#ifdef CONFIG_TRACE_IRQFLAGS - bl trace_hardirqs_off -#endif get_thread_info tsk #ifdef CONFIG_PREEMPT ldr r8, [tsk, #TI_PREEMPT] @ get preempt count |