Changes between Version 30 and Version 31 of TBR/UserManual/RTEMS_Coverage_Analysis

Timestamp:

09/09/09 21:57:02 (15 years ago)

Author:

JoelSherrill

Comment:

/* How it was Done */ use real names for coverage start/end symbols.

TBR/UserManual/RTEMS_Coverage_Analysis

@@ -24 +24 @@
 
 
-The RTEMS Code Coverage Analysis process was designed to be as automated as possible.  The coverage testing is performed using a processor simulator in conjunction with a set of RTEMS specific support scripts.  The code to be analyzed is linked together as a single relocatable with special start (COVERAGE_START) and end (COVERAGE_END) symbols.  The relocatable is then linked to the same address in every test from the test suite.  Each test is then executed on a processor simulator that gathers information about which instructions were executed and produces a coverage map for the test.  After all tests have finished, the support script covmerge is used to merge all coverage maps into a unified coverage map for the entire test suite and to produce reports that identify the uncovered code.  The picture shown provides the general flow of the process.
+The RTEMS Code Coverage Analysis process was designed to be as automated as possible.  The coverage testing is performed using a processor simulator in conjunction with a set of RTEMS specific support scripts.  The code to be analyzed is linked together as a single relocatable with special start (''start_coverage'') and end (''end_coverage'') symbols.  The relocatable is then linked to the same address in every test from the test suite.  Each test is then executed on a processor simulator that gathers information about which instructions were executed and produces a coverage map for the test.  After all tests have finished, the support script ''covmerge'' is used to merge all coverage maps into a unified coverage map for the entire test suite and to produce reports that identify the uncovered code.  The picture shown provides the general flow of the process.
 
 [[Image(CoverageFlow.png)]]]]