------- Comment #3 from alexandre dot nunes at gmail dot com 2007-10-20 12:20 ------- (In reply to comment #2) > The standard puts all the burden on the implementation (See 6.7.2.1/10). > The GCC manual in turn says the behavior is specified by the ABI (4.9 > Structures, unions, enumerations, and bit-fields), which would be the sysv ABI > which I > don't have handy right now. >
Does the ABI dictates the case of how gcc should *pack* the structures? I've seem that gcc packs structures in a very similar (if not identical) fashion on some targets (ix86-linux-gnu, arm-elf, mingw without -mms-bitfields, at least), are they covered by sysv ABI too? Is it a default on gcc whenever the target has no particular semantics (as arm-elf, which I suppose does not derive from the ARM published ABIs at all)? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33823
