Hi,
I've been doing a bring up on an embedded kernel and to prevent gdb
making me go google eyed I notched the optimization level down to -O0
for the time being. This broke the natsemi network driver and I noticed
this stanza appears in a few places:
#if !defined(__OPTIMIZE__)
#warning You must compile this file with the correct options!
#warning See the last lines of the source file.
#error You must compile this driver with "-O".
#endif
Despite the comments I couldn't see an explanation at the bottom of the
source file and a quick google showed a few patches where this was
removed but no explanation.
Does anybody know the history behind those lines? Do they serve any
purpose now or in the past? Should I be nervous about compiling the
kernel at a *lower* than normal optimization level? After all
optimizations are generally processor specific and shouldn't affect the
meaning of the C.
-- Alex Bennee Senior Hacker, Braddahead Ltd The above is probably my personal opinion and may not be that of my employer- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Tue Jan 07 2003 - 22:00:31 EST