nickdesaulniers wrote: > Does anyone understand why Linux uses __builtin_return_address there?
Grep turns up 257 callers of `__builtin_return_address` in the linux kernel sources. Hard to say definitely for all cases. It's possible that some are incorrect, or should have their callers explicitly marked `always_inline` or `noinline`. > Have we consider the alternative of just disabling inlining when a function > uses __builtin_return_address? Is that what GCC does ([Looks like no](https://godbolt.org/z/8zKfGKrzq))? Perhaps useful to match behavior of this compiler builtin, if so. Or document ways in which we intentionally diverge. > Is there any case in Linux where it's a correctness issue to use a caller's > address? 257 call sites. hard to say https://github.com/llvm/llvm-project/pull/82966 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
