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Cadence Xtensa Xplorer

The Xtensa Xplorer Development Environment cannot be configured to build using BullseyeCoverage. You can build with BullseyeCoverage using the command line compiler.

Convert Project to Script

In Xplorer, rebuild your project and copy the compiler commands from the Console window. For example:

Paste the commands into a text editor. Remove all the lines other than invocations of the compiler. Remove the directory prefix from these commands. Save the file as build.bat. For example:

xt-clang -c -g -O0 -fmessage-length=0 -DPROC_hifi3_ss_spfpu_7 -DCONFIG_hifi3_ss_spfpu_7 --xtensa-system=C:/usr/xtensa/XtDevTools/install/builds/RI-2021.8-win32/hifi3_ss_spfpu_7/config --xtensa-core=hifi3_ss_spfpu_7 --xtensa-params= "\"C:/Users/test/workspace/HelloWorld/main.c\"" -o "\"C:/Users/test/workspace/HelloWorld/bin/hifi3_ss_spfpu_7/Debug/main.o\""

xt-clang++ -Wl,@C:/Users/test/workspace/HelloWorld/bin/hifi3_ss_spfpu_7/Debug/objfiles.list -o C:/Users/test/workspace/HelloWorld/bin/hifi3_ss_spfpu_7/Debug/HelloWorld.minsize -mlsp=sim -Wl,-r -nostdlib --xtensa-system=C:/usr/xtensa/XtDevTools/install/builds/RI-2021.8-win32/hifi3_ss_spfpu_7/config --xtensa-core=hifi3_ss_spfpu_7 --xtensa-params=

Invoke a command shell with the environment variables set properly to invoke the Xtensa compiler for your project.

Enable coverage build and run the script to instrument your project.

C:\project\> set PATH=%ProgramFiles%\BullseyeCoverage\bin;%PATH%
C:\project\> cov01 -1
C:\project\> build.bat

Run-Time Library Built Automatically

By default, BullseyeCoverage automatically compiles and adds the run-time library run/libcov-xtensa.c to compiler invocations that link an executable. This source implements the small footprint configuration for running under the Xtensa instruction set simulator. You can override this behavior by one of the alternatives below.

Include in your link command your own run-time library named with the prefix libcov-, for example libcov-userDefined.a
Use the covc option --lib

Saving Coverage

Add a call to cov_dumpData into your program. The output file BullseyeCoverage.data-pid is written in the project directory.

#if _BullseyeCoverage
	cov_dumpData();
#endif

Updated: 14 Jun 2023