On 07/08/13 06:58, vijay nag wrote:
If you just have the binary without the source, I guess it is impossible to figure out optimization level. If you have source for the same, you can build it with -O0, disassemble the code and compare the compiler code emission for a particular function. In future, if you would like to know the CFLAGS with which it was built, you can export those information to a header as #define's and be included in one of compilation units. Vijay Nag
Depending on the compiler/platform/format you could get some hints. For instance -fomit-frame-pointer would be easy to detect in disassembly. But it would be a hard and mostly-manual work (and you would probably need quite a bit of knowledge about gcc phases). I don't think it's worth trying to figure out. Do you have a real need for knowing that?