I am trying to determine the contributions of individual classes (and
packages) in a C++ application to the amount of ROM / Flash required for
storing the (embedded) application image.
When using the size utility on an object file I get a much larger size
(~4X) reported than when I use the nm utility on the same object file.
For example,
size rt_osthread.o:
text 1652
data 0
bss 0
dec 1652
nm --format=bsd --size-sort --print-file-name --demangle rt_osthread.o:
456 (after summing all reported sizes)
Additionally, the results using nm on the executable are similar to
those produced when running nm on the object file (with the exception of
the unused methods ...).
Which of these utilities more accurately reflects the contribution of
the class/object to the application image size?
Thanks!!!
