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6355a96915
On ARM64EC, function declarations have additional nuances: - Function names are mangled by prefixing them with "#" - An unmangled symbol is defined as a weak anti-dependency alias to the mangled symbol - An entry thunk is generated to convert from the x86_64 calling convention to the ARM64EC calling convention, used by the emulator - A .hybmp section entry is generated to associate the function with its entry thunk The compiler can handle all of this if provided with the necessary information. Naked functions are the most convenient way to achieve this. Use naked functions only on Clang. GCC doesn’t support them on ARM targets and has broken behavior on x86_64 by emitting .seh_endprologue. Signed-off-by: Jacek Caban <jacek@codeweavers.com>