On Friday 11 November 2011 00:16:47 Graeme Russ wrote: > On Fri, Nov 11, 2011 at 4:04 PM, Mike Frysinger wrote: > > i can't think of any calls off the top of my head which would result in > > invoking a func in libgcc.a. > > Any function listed here: > > http://gcc.gnu.org/onlinedocs/gccint/Libgcc.html > > But we can discount any float/double routines, exception handling and > split stack which leaves just: > > http://gcc.gnu.org/onlinedocs/gccint/Integer-library-routines.html
yes, and pretty much all of those are emitted implicitly due to math operations (64bit divs/mults/etc...), or explicitly when the user does __builtin_xxx() (and use of __builtin_xxx is not affected by -fno-builtins). none of those that i can see would come via a C library call that gcc would implicitly rewrite. -mike
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