Dear "Fahd Abidi",
In message 71DEA556544D7A4F9C6848402D8184340C45D7@usi01.ultsol.local you wrote:
I have the following in u-boot-2009.01/config.mk, but GDB still reports optimizations:
OPTFLAGS= -Os -fno-schedule-insns -fno-schedule-insns2 #-fomit-frame-pointer
Well, "-Os" means "optimize for minimal code size"...
(gdb) stepi
0x0ff78750 in get_table_entry_name (table=<value optimized out>,
... so it is only natural that GCC will eliminate unneeded code.
Does anyone know how to completely turn optimization off? Using no -O flag results in u-boot not compiling.
You cannot globally disable optimization. You might get away with doing this on a per-file level, but there is no guarantee for that.
It is better to arrange to keep optimization turned on - after all, this is the real code that will later be running.
Best regards,
Wolfgang Denk