Eric Botcazou writes: >> Output of -fstack-usage is not accurate >> ======================================= >> >> This article mentions a "call cost": >> https://mcuoneclipse.com/2015/08/21/gnu-static-stack-usage-analysis/ >> >> I checked for myself, by looking at the change of the stackpointer with a >> debugger, and, yes, there seems to be a constant mismatch (2 bytes with >> avr-gcc-5.3) between change of stack pointer and output of -fstack-usage. >> In some rare cases there are more differences, which I didn't understand >> yet. > > That's a bug, very likely in the AVR back-end, which must be fixed by someone > who knows the AVR architecture.
I'll take a look. Regards Senthil
