NaplesPU Libraries
NuPlus is provided with different kind of libraries that are contained in the libs/ folder.
libc
We implemented our custom version of the following standard C libraries:
- ctype
- math
- stdlib
- string
Note that these libraries are not fully developed and, hence, some functions may be missing. In particular, dynamic memory management (calloc, free, malloc, realloc) and environment (abort, atexit, at_quick_exit, exit, getenv, quick_exit, system) functions are not implemented. In addition, we redefined the stdint.h header file in order to provide a set of typedefs that specify vector types.
During compilation, these libraries are archived together into a single file, i.e. libc.a, using the llvm-ar archiver.
libcompiler
This folder contains the libraries that are required by the compiler to handle operations that are not legal in the target architecture. In particular, we implemented the following libraries:
- divdi3.c: signed 64-bit integer division
- divsi3.c: signed 32-bit integer division
- moddi3.c: signed 64-bit integer modulus
- modsi3.c: signed 32-bit integer modulus
- udivdi3.c: unsigned 64-bit integer division
- udivsi3.c: unsigned 32-bit integer division
- umoddi3.c: unsigned 64-bit integer modulus
- umodsi3.c: unsigned 32-bit integer modulus
