ARM DS-5 - Setting up an Android Target

Setting Up Your Target
ARM DUI 0482K Copyright © 2010-2012 ARM. All rights reserved. 2-6
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2.2 Setting up an Android target
These instructions are specific to targets running Android.
Note
You can locate all of the files provided by DS-5 by selecting Help → ARM Extras... from the
main menu.
2.2.1 Prepare and build your kernel
You must enable certain kernel configuration options to run Streamline. In the kernel
configuration menu, use the arrow keys to navigate to the required submenu and press Enter.
Each submenu is listed with the action you must take within it.
General Setup
Enable the Profiling Support option,
CONFIG_PROFILING and the Kernel
performance event and counters option,
CONFIG_PERF_EVENTS .
Kernel Hacking
Enable the Tracers option,
CONFIG_FTRACE , and the Tracers → Trace process
context switches and events option,
CONFIG_ENABLE_DEFAULT_TRACERS . You must
add the following options,
To populate the Mutex CPU Wait chart you must enable the Kernel hacking →
Mutex debugging: basic checks option,
CONFIG_DEBUG_MUTEXES , and.the Kernel
hacking → Compile the kernel with debug info option,
CONFIG_DEBUG_KERNEL_INFO .
Kernel Features
Enable the High Resolution Timer Support option,
CONFIG_HIGH_RES_TIMERS and
the Enable hardware performance counter support option,
CONFIG_HW_PERF_EVENTS . Enable the Use local timer interrupts option,
CONFIG_LOCAL_TIMERS , if you are using a Symmetric MultiProcessing (SMP) target.
CPU Power Management
To enable the CPU Freq Timeline view chart,
gator requires kernel version 2.6.38
or greater and that you define the CPU Frequency scaling → CPU Frequency
scaling option,
CONFIG_CPU_FREQ .
Note
The Trace context switches and events option, CONFIG_ENABLE_DEFAULT_TRACERS , is not be
visible if you have other Tracers configuration options enabled. Enabling other Tracers
configuration options is sufficient to turn on context switches and events and run Streamline.
Note
The Trace process context switches and events option is not the only option that enables
tracing.
CONFIG_GENERIC_TRACER or CONFIG_TRACING also work. The Trace process context
switches and events option may not be visible in menuconfig as an option if other trace
configurations are enabled. Enabling one of these other trace configurations works fine to turn
on tracing.
If these options are not set correctly, you must change them and rebuild your kernel. If they are
set correctly, you are ready to build and install the gator driver.