This has come up before, and here's what's going on... the new msp430-elf-gcc includes all the code required by the standard, partly because... well, standards... and partly so that the testsuite can test everything. The old msp-gcc made lots of assumptions about how the compiler would actually be used, and "pre-optimized" the runtime for it.
So you end up with things like "argv handling" when there's no command line, or "exit closes files" when you never exit. A big change is using a float-enabled printf when you don't need it. I put some notes here, way back when, but they're old, and IIRC it's been improved even more since then: http://people.redhat.com/~dj/msp430/size-optimizations.html Also, you can use "msp430-elf-gcc -mintr ..." to minimize the runtime support. Also, if you're REALLY constrained to size, you might consider getting the crt0.S source file from newlib and modifying it yourself to really strip out the parts you don't need. Most embedded code really only needs to set up the stack and watchdog, then jump to main(). ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Mspgcc-users mailing list Mspgcc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mspgcc-users
