CCS: Can't make use of exception hook

Chester Gillon said:

Robert56682

Exception.exceptionHook = exception_hook;

Based at looking at some example .cfg files, for a .cfg file to reference a C function you need to quote the address of the function. I.e. try:

Exception.exceptionHook = "&exception_hook";

Hi,

I made that change, but now it errors out during link (not compile).

<Linking>

undefined first referenced
symbol in file
--------- ----------------
exception_hook one_pe674.oe674

error #10234-D: unresolved symbols remain
error #10010: errors encountered during linking; "one.out" not built
fatal error #99900: error limit reached; 1 errors detected

Thanks,

Robert

I just imported the typical example in the SYS/BIOS product (via Resource Explorer Classic). I added the following to the .cfg

var Exception = xdc.useModule( 'ti.sysbios.family.c64p.Exception' );

Exception.exceptionHook = "&exception_hook";

and this to main.c

Void exception_hook(Void)

{

}

It compiled properly and exception_hook was hooked into the exception module. I confirmed this by looking at following in the typical_TMS320C6746_C67XX\Debug\configPkg\package\cfg\app_pe674.c file.

__FAR__ const CT__ti_sysbios_family_c64p_Exception_exceptionHook ti_sysbios_family_c64p_Exception_exceptionHook__C = ((CT__ti_sysbios_family_c64p_Exception_exceptionHook)((xdc_Fxn)exception_hook));

Additionally I confirmed exception_hook was in the mapfile (as expected).

Are you sure the file that has exception_hook is going added into the build?

Todd

Chester Gillon said:

Robert56682

I made that change, but now it errors out during link (not compile).

Is the exception_hook in a C or C++ source file?

If in a C++ source file extern "C" will be necessary to prevent the C++ name mangling from changing the name seen the linker.

That did it.  Is C++.  

Thanks much.

Robert