CCS/PROCESSOR-SDK-AM437X: AM437X

Chuan Lee

Tool/software: Code Composer Studio

I am using a DSS script to load and run an ELF executable. The entry point is called "_start" and not "main". (This is the RTEMS RTOS, if it matters). When I do:

debugSession.memory.loadProgram("file.out");

I get a warning:

AutoRun: Target not run as the symbol "main" is not defined

I have verified that the ELF file has the correct entry point set (e.g., readelf -A file.out shows "Entry point address: 0x80000040").

When I simply do:

debugSession.target.run();

nothing happens (the target does not start running).

When I try:

debugSession.memory.writeRegister("PC", 0x80000040);

to force the PC to the entry point before doing debugSession.target.run(), again nothing happens.

How can I start the target correctly? (Renaming "_start" is not an option).

Thank you!

over 8 years ago

0 JohnS over 8 years ago

TI__Guru**** 162985 points

Chuan,

There are a couple of debug options that are set be default. One is to auto-run to a label and then there is one that defines the label as main. I have not used them myself but there are APIs for controlling these.

software-dl.ti.com/.../sdto_dss_handbook.html

In the API guide there are more details under the "Options" class.

Regards,
John

0 Chuan Lee over 8 years ago in reply to JohnS

Prodigy 180 points

Thank you for the suggestion, John. Unfortunately, none of the obvious options (AutoRun*) worked.
I created a workaround using:

debugSession.memory.loadBinaryProgram("file.bin", entryPoint);
debugSession.symbol.load("file.out");

where I created file.bin offline out of file.out.

Thanks again for your help.

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CCS/PROCESSOR-SDK-AM437X: AM437X