CodeTest

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CodeTest
Embedded Software Verification Tools
By Advanced Microsystems Corporation
Last update August 9, 2002
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CodeTest - Introduction

• Tool for embedded developers and test engineers
• Can run on
• Target processor
• Simulator
• Native environment (Host environment)

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CodeTest Introduction 2

• Can be used in three configurations
• Hardware in circuit (HWIC)
• Minimal instrumentation
• Execution trace data captured by special external
  hardware
• Software in circuit (SWIC)
• Uses target resources for collecting trace data
• Can be used in a simulator or target platform
• Native
• Used to collect trace data in host environments

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CodeTest Supported Platforms

• RTOSes supported
• VxWorks (v5.3.1, v5.4)
• VxWorks AE (v1.1)
• pSOS (v2.2, v2.5)
• OSE (v4.0-v4.4)
• ChorusOS (v4.0, v4.01)
• OS20 (v1.8)
• QNX (v2.11)

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CodeTest Supported Platforms 2

• Host Environments supported
• Windows NT4.0/2000
• Linux (Redhat 6.1 or higher)
• Solaris 2.6, 2.7, 2.8

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CodeTest Tasks

• CodeTest can
• Trace code execution
• Measure the performance of
• Functions
• Function call pairs
• Between any two user-designated events
• Measure memory allocation and deallocation
• Measure code coverage

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CodeTest Components

• CodeTest software suite consists of
• Instrumenter
• Manager GUI
• Trace Tool
• Performance Tool
• Memory Tool
• Coverage Tool
• Scripting interface API
• Also contains a specialized hardware probe for
  real-time analysis of target platform

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CodeTest Manager GUI

• Configure Data sources
• Target platforms on the network
• Other host nodes
• Trace data stored in files
• Specialized hardware probe on the network
• Workspace pane
• Displays and manages different views
• Interface to the other tools

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CodeTest HW Probe

• Special 64-bit write-only memory device
• Monitors target bus
• Contains
• RS232 Serial connector
• Ethernet port
• USB port
• Variety of hardware
• connectors for different buses
• Configured by the manager GUI
• Can be used as the data source for
• trace data

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CodeTest Coverage Tool

• Provides information about the tested coverage of
  instrumented application
• Summary Coverage data reported at following
  levels
• Entire project
• Per function
• Per file
• Provides
• Statement coverage
• Decision coverage
• Modified Condition-Decision coverage

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CodeTest Memory Tool

• Used to track applications dynamic memory
  allocation and deallocation
• Provides information on
• Each functions memory usage
• Source program memory usage
• Number of times individual memory allocation and
  deallocation statements are executed
• Type of allocation call (malloc/realloc)
• Memory allocation block sizes (Avg., Min. and
  Max.)
• Memory allocation failures

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CodeTest Performance Tool

• Used to obtain timing and count information on
  instrumented functions and tasks
• Provides four performance views
• Task data view Amount of time spent in RTOS
  tasks and ISRs
• Call pair data view Each calling function and
  number of times it called a specific function
• Function performance data view Timing and
  invocation information for each function
• A/B Timer data view Timing information for upto
  8 user configurable event pairs

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CodeTest A/B Timers

• Can be used to measure performance between any
  two events
• Could be used for
• Loop analysis
• Execution path analysis
• RTOS overhead or third party tools overhead
  analysis
• Path dependent performance analysis

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CodeTest A/B Timers Example Loop analysis
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CodeTest A/B Timers Example Path based
analysis
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CodeTest A/B Timers Example Third party
analysis
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CodeTest Trace Tool

• Create trace measurements based on wide variety
  of trigger events, including C statement types.
• Can be used to
• Trigger trace capture on specific events
• Trace within a specific context (Task, function
  call chain or both)
• Control the amount of trace captured (Call stack
  depth, Trace buffer limit)