Messages in this thread |  | | From | Keith Owens <> | Subject | Re: Need info on the use of certain datastructures and the first C++ keyword patch for 2.2.17 | Date | Tue, 31 Oct 2000 08:04:57 +1100 |
| |
On Mon, 30 Oct 2000 18:16:44 +0000 (GMT), Alan Cox <alan@lxorguk.ukuu.org.uk> wrote: >> 2.4 symbol generation code never sees the C++ names, 2.5 code might. >> To detect a mismatch between kernel headers and the module version >> file, I have to generate the checksum for the consumer of the symbol >> (C++) as well as the generator of the symbol (C) and compare them. > >These are structure field names. They aren't part of a symbol and are only >part of your checksum computation which is done on the C headers so a constant. > >If we were renaming variables or actual objects I'd agree. But structure names >are fine so long as we only use C names for the module checksum computation
The checksum is done on the output from the preprocessor, not the headers. Changing field names via preprocessor flags gives different checksums for structures.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
|  |