"Aparna Jain (apjain)" <apjain@xxxxxxxxx> writes: > The code generated by 3.4.5 is no more assumes the first function of a C > file as the starting Address of the compiled code. I think this is > because of -funit-at-a-time which is enabled by default by O2 option. ... > I used -fno-unit-at-a-time , and it was fine. But just concerned about > the throughput of the code generated. Is there any other way to deal > with this problem ? If you need the output to be in the same order as the input, then in gcc 3.4.5 -fno-unit-at-a-time is the right approach. In gcc 4.2 and later, you can instead use -fno-toplevel-reorder, which retains the ordering while also giving you the performance benefits of -funit-at-a-time. Ian
