Dear sirs, When trying to generate code debuggable by GDB, I meet a problem:
* it seems mips C code will expect a frame pointer = sp after stack adjustment * but in cpupara.pas, when we create para info, we don't know yet the whole stack size, thus the reference offset cannot be set correctly In current code, I use move fp, sp addiu sp,sp,-LocalSize ... and use the frame pointer fp as reference base, so the offset for callee can be the same as the caller side. In MIPS ABI, the parameter area for callee functions is at the bottom of caller function's stack, so the offsets are decided only by parameters when use fp(or the caller's sp, or the sp upon function entry) as the base. C code is something like: addiu sp,sp,-LocalSize sw fp, 4(sp) move fp, sp in this way, I don't know how to generate parameter references since no usable base register to get fixed offset for parameters in create_paraloc_info_intern. Could you give some hints? Best Regards _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
