AM2632: need to replace the Debugp_assert() with the custom assert

Madhuri Kadu

Part Number: AM2632

need to replace the Debugp_assert() with the custom assert so can you help how I do this?? need a step to change function in sdk to add my custom function

17 days ago

0 Nilabh Anand 17 days ago

TI__Guru 52760 points

Options to Override a Strong Function in TI Arm Clang

1️⃣ Use `--symbol_map` to Rename the Original

You can tell the TI linker to rename the original function in the library to something else, then provide your own implementation.

Example: Override driver_init() but still call the original.

Linker command:

Hi You can use below described method to do the same:

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--symbol_map=driver_init=__real_driver_init

Your code:

C

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#include <stdio.h>

// Declare the renamed original
extern void __real_driver_init(void);

void driver_init(void) {
    printf("Custom driver_init override\n");
    // Optionally call the original
    __real_driver_init();
}

This works because the linker rewrites all references in the library from driver_init → __real_driver_init, leaving your driver_init as the public one.

2️⃣ Use `--undef_sym` to Force the Symbol to be Undefined

If you don’t need to call the original, you can tell the linker to ignore the library’s definition and take yours instead.

Linker command:

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--undef_sym=driver_init

Then just define your own:

C

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void driver_init(void) {
    // Completely replace the driver init
}

0 Madhuri Kadu 17 days ago in reply to Nilabh Anand

Prodigy 20 points

I am programming through CCS so what will be step there

0 Nilabh Anand 16 days ago in reply to Madhuri Kadu

TI__Guru 52760 points

Even with CCS, you can view the linker cmd file, you need to apply these changes in your linker command file.

0 Madhuri Kadu 16 days ago in reply to Nilabh Anand

Prodigy 20 points

so, all above steps do I need to put in linker file for the function which I need to replace??

0 Nilabh Anand 16 days ago in reply to Madhuri Kadu

TI__Guru 52760 points

Yes that is correct

0 Madhuri Kadu 13 days ago in reply to Nilabh Anand

Prodigy 20 points

I have done these changes in linker.cmd file but after change when i build the project again my all changes get erased from linker file. so not able to validate the same

0 Nilabh Anand 13 days ago in reply to Madhuri Kadu

TI__Guru 52760 points

Hi Madhuri,

Currently linker cmd file is generated by the syscfg, you will need to copy the linker command file manually to your project then disable the linker command linking from syscfg(this will ensure that your changes are not overwritten) and allow only the linker command whch you manually modify to be used.