Messages in this thread | | | Date | Thu, 22 Sep 2022 20:55:01 -0400 | Subject | Re: [PATCH 0/4] fortify: Use __builtin_dynamic_object_size() when available | From | Siddhesh Poyarekar <> |
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On 2022-09-22 20:20, Kees Cook wrote: > Yeah, this could be another interest set of additions. It seems like it > might be more "coder friendly" if, in the future that has the > __element_count__ attribute, it could be used in function parameters > too, like: > > If we had: > > int do_something(struct context *ctx, u32 *data, int count) > > this seems less easy to read to me: > > int __access(read_write, 2, 3) do_something(struct context *ctx, u32 *data, int count) > > as this seems more readable to me, though I guess the access-mode > information is lost: > > int do_something(struct context *ctx, u32 * __element_count(count) data, int count)
It doesn't *have* to lose access mode info:
int do_something(struct context *ctx, u32 * __element_count(count, __read_only__) data, int count) { ... }
where omitting the access mode could imply __read_write__.
Thanks, Sid
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