15/10/2020 02:55, Stephen Hemminger: > By using the alloc_size() attribute the compiler can optimize > better and detect errors at compile time. > > For example, Gcc will fail one of the invalid allocation examples > in app/test/test_malloc.c because the allocation is outside the > limits of memory. > > Signed-off-by: Stephen Hemminger <step...@networkplumber.org> > --- > v2 - rebase onto correct branch (main) [...] > +/** > + * Tells compiler that the function returns a value that points to > + * memory, where the size is given by the one or two arguments. > + * Used by compiler to validate object size. > + */ > +#if defined(RTE_CC_GCC) || defined(RTE_CC_CLANG) > +#define __rte_alloc_size(...) \ > + __attribute__((alloc_size(__VA_ARGS__))) > +#else > +#define __rte_alloc_size(...) > +#endif
Not sure about the rebase: RTE_CC_GCC and RTE_CC_CLANG don't exist.
