dumping C structure sizes from ELF object file

Question

How can you extract the sizes of all C structures from an ELF object file with debugging symbols?

Individual struct sizes can be obtained from GDB using \"print sizeof(s

Answer 1

pahole shows this and other details about structs. Its git repo is at http://www.kernel.org/git/?p=linux/kernel/git/acme/pahole.git;a=summary.