Re: [PATCH 3/8] riscv: ftrace: support fastcc in Clang for WITH_ARGS

On Thu, Jun 13, 2024 at 03:11:08PM +0800, Andy Chiu wrote: > Some caller-saved registers which are not defined as function arguments > in the ABI can still be passed as arguments when the kernel is compiled > with Clang. As a result, we must save and restore those registers to > prevent ftrace from

[PATCH 3/8] riscv: ftrace: support fastcc in Clang for WITH_ARGS

Some caller-saved registers which are not defined as function arguments in the ABI can still be passed as arguments when the kernel is compiled with Clang. As a result, we must save and restore those registers to prevent ftrace from clobbering them. - [1]: https://reviews.llvm.org/D68559 Reported-