From 148d6e9a15fbb46dc3ab12ab8bdc3b10193d71a0 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Thu, 6 Mar 2014 15:51:10 +0100 Subject: arm: Add support for interrupt profiling --- cpukit/score/cpu/arm/arm_exc_interrupt.S | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/cpukit/score/cpu/arm/arm_exc_interrupt.S b/cpukit/score/cpu/arm/arm_exc_interrupt.S index 697171e48a..27c43f900b 100644 --- a/cpukit/score/cpu/arm/arm_exc_interrupt.S +++ b/cpukit/score/cpu/arm/arm_exc_interrupt.S @@ -122,6 +122,14 @@ _ARMV4_Exception_interrupt: str r2, [SELF_CPU_CONTROL, #PER_CPU_ISR_NEST_LEVEL] str r3, [SELF_CPU_CONTROL, #PER_CPU_THREAD_DISPATCH_DISABLE_LEVEL] +#ifdef RTEMS_PROFILING + cmp r2, #1 + bne profiling_entry_done + bl _CPU_Counter_read + push {r0, r1} +profiling_entry_done: +#endif + /* Call BSP dependent interrupt dispatcher */ bl bsp_interrupt_dispatch @@ -133,6 +141,18 @@ _ARMV4_Exception_interrupt: str r2, [SELF_CPU_CONTROL, #PER_CPU_ISR_NEST_LEVEL] str r3, [SELF_CPU_CONTROL, #PER_CPU_THREAD_DISPATCH_DISABLE_LEVEL] +#ifdef RTEMS_PROFILING + cmp r2, #0 + bne profiling_exit_done + bl _CPU_Counter_read + pop {r1, r3} + mov r2, r0 + mov r0, SELF_CPU_CONTROL + bl _Profiling_Outer_most_interrupt_entry_and_exit + ldr r3, [SELF_CPU_CONTROL, #PER_CPU_THREAD_DISPATCH_DISABLE_LEVEL] +profiling_exit_done: +#endif + /* Restore stack pointer */ mov sp, SP_OF_INTERRUPTED_CONTEXT -- cgit v1.2.3