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authorKhem Raj <raj.khem@gmail.com>2011-03-17 16:54:30 -0700
committerRichard Purdie <richard.purdie@linuxfoundation.org>2011-03-23 17:10:20 +0000
commit9cb7113790d716a4c5cf7d511535ba87fdecd1ac (patch)
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bitbake.conf: Prune global OPTIMIZATION flags
-fexpensive-optimizations is enabled by default at -O2 -fomit-frame-pointer is enabled at -O2 selectively by gcc depending upon architecture if debug info is not hurt -frename-registers - This might have some performance advantage on top of O2 on architectures which have more registers and registers are left after scheduling but it affects debuggability quite a bit so as a i tradeoff we do not use it. -feliminate-dwarf2-dups - We use this option to reduce the size of debug information by removing duplicates this is only valid for dwarf2+ and we use dwarf2 by default -pipe uses buffers instead of temporary files internally it can speed up compilation it has has issues with other assemblers but not with GNU assembler and we use gas. Separate out debug information related flags into a separate variable DEBUG_FLAGS so distros can use/notuse them as they like Signed-off-by: Khem Raj <raj.khem@gmail.com>
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