4.1.1 XC32 Global Options
The following global feature controls are displayed in the MPLAB X IDE and VS Code project property dialogs, along with their corresponding driver options. When used, these options are applied at each stage of the compilation process.
| Option | Description | Command Line |
|---|---|---|
| Override default device support | Select “Do not override” to build the project with a default DFP. Select “Compiler location” to use the relevant DFP shipped with the compiler. DFPs provide device-specific information, such as register names and addresses, which can be used by code in the project. | -mdfp |
| Don’t delete intermediate files | Don’t delete intermediate Files. Place them in the object directory and name them based on the source file. | -save-temps[=dir] |
| Link-Time Optimizations | When these optimzations are enabled, the build will be constrained in the following ways: - The per-file build settings will be ignored - The build will no longer be an incremental one (full build only) | -f[no-]lto |
| Use GP relative addressing threshold | Put definitions of externally-visible data in a small data section if that data is no bigger than num bytes. | -G num |
| Relaxed floating-point math |
Link in a relaxed-compliance math library, providing alternative floating-point support routines that are faster and smaller than the default math routines, but make some sacrifices in compliance. | -relaxed-math |
| Common include dirs | Directory paths entered here will be appended to the already existing include paths of the compiler. Relative paths are from the MPLAB X IDE project directory. | -I dir |