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Revert commit e655e74a318e from llvm git (by Peter Collingbourne): AST: Create __va_list in the std namespace even in C. This ensures that the mangled type names match between C and C++, which is significant when using -fsanitize=cfi-icall. Ideally we wouldn't have created this namespace at all, but it's now part of the ABI (e.g. in mangled names), so we can't change it. Differential Revision: https://reviews.llvm.org/D104830 As reported by Jessica in https://reviews.llvm.org/D104830#3129527, this upstream change is implemented in such a way that it breaks DTrace's CTF. Since a proper fix has not yet been forthcoming, and we are unaffected by the (CFI-related) problem upstream was trying to address, revert the change for now. Requested by: jrtc27 MFC after: 3 days |
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