Sometimes, you need to modify the FSBL source code to add more custom features. To debug these features, run FSBL in the Vitis debugger. This example guides you through the steps to run FSBL in Vitis debugger.
FSBL is built with size optimization and link time optimization flags (such as -Os). These optimizations reduce the memory footprint of FSBL but can make debugging difficult. Removing optimizations can lead to increased code size, which can result in FBSL build failure (because FSBL needs to run on the 128 KB OCM). Instead, these optimizations should be disabled for debugging purposes. To do this, some FSBL features should be disabled in the xfsbl_config.h file of the FSBL if they are not required.