Hi,
I did some testing of 4.6.3 on my Cortex-M3 LPC1765 based app, using the
eCos CVS repo code.
I use -Os and my goal is to reduce the code size:
4.3.2: 153172 bytes
4.6.3: 144556 bytes
4.6.3, app only compiled with -flto: 136404 bytes
The improvement is significant and the app still works ;-)
However I wasn't able to link with eCos compiled with -flto and
-Wl,--allow-multiple-definition, the linker fails with:
target.a: could not read symbols: Bad value
I could link adding '-fno-use-linker-plugin' but then I'm back to 144028
bytes!
Did anyone succeeded in compiling/linking an application and eCos with
-flto??
Thanks,
Bernard
