Hello! I'm looking for an information regarding exception handling on Linux/m68k, in particular I need to know what registers are used by the ABI in order to implement the functions "getExceptionPointerRegister" and "getExceptionSelectorRegister" in the M680x0 backend in LLVM [1], [2]. I looked into the GCC source code to find the corresponding parts but I could only find the macros prefixed with "EH_" [4] which I didn't fully understand. Can any of the experienced GCC/m68k folks tell me which registers in [5] I need to use? Adrian
[1] https://github.com/M680x0/M680x0-mono-repo/issues/15 [2] https://github.com/llvm/llvm-project/blob/master/llvm/lib/Target/Sparc/SparcISelLowering.h#L107 [3] https://github.com/llvm/llvm-project/blob/ee34d9b210cb5a6d14fe069e2e2ae75b0548dba9/llvm/lib/Target/Sparc/SparcRegisterInfo.td#L151 [4] https://github.com/gcc-mirror/gcc/blob/master/gcc/config/m68k/m68k.h#L741 [5] https://github.com/M680x0/M680x0-mono-repo/blob/master/llvm/lib/Target/M680x0/M680x0RegisterInfo.td
-- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@xxxxxxxxxx `. `' Freie Universitaet Berlin - glaubitz@xxxxxxxxxxxxxxxxxxx `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
