Ruppert <dieter_ruppert@xxxxxxxxxxx> writes: > I am trying to reduce the size of debug information for a large C++ project > and tried -feliminate-dwarf2-dups. This did not work as expected, I got even a > slight increase in .debug_info (instead of some decrease). You're right. -feliminate-dwarf2-dups does not work with C++. This seems to be because the C++ frontend does not generate the debug information for typedefs as it is reading the source files. It only generates it after all the sources files have been read, and it does not associate it with the appropriate header file. This is probably a bug, though it may not be an easy one to fix. Fortunately in mainline gcc, when using -gdwarf=4, there is a better approach to reducing the size of C++ debug info, which permits much more duplicate information to be eliminated at link time. This will be in gcc 4.6. Ian
