19/10/2020 16:13, Thomas Monjalon: > 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.
Actually no, I forgot my 7-month old patch introducing them. Applied, thanks
