Manjunath Matti <manjunath81@xxxxxxxxx> writes: > In glibc the following commit adds support for backtrace in MIPS port. > commit 04d450263622ae7c37cb841f93b3bcf4e9397a88 > > Link: http://repo.or.cz/w/glibc-ports.git/commit/04d450263622ae7c37cb841f93b3bcf4e9397a88 > > But during compilations of any program the user needs to provide/pass > -funwind-tables to GCC, to be able to do a backtrace. > I am proposing why not the option be made the default one! it would be > useful to all. > Please let me know if its ok, I have a patch which will enable > -funwind-tables as a default option. The -funwind-tables option takes up space in the program. That is undesirable for programs running on embedded systems that do not need to call backtrace or throw exceptions. Given this, each programmer has to decide whether to use the option, and GCC has to pick a sensible default. The default GCC has chosen is to turn off -funwind-tables unless the language requires it (e.g., C++, Java, Go) or the processor ABI requires it (x86_64). You are proposing to change the default for MIPS. That would not be the normal default for GCC. However, it's fine by me if the MIPS maintainers want to make that change. Those are the people you have to convince. Search for "mips" in the top-level MAINTAINERS file in the gcc source code. Ian
