🚀 go-pugleaf

In article <ben.2904@epmooch.UUCP> ben@epmooch.UUCP (Rev. Ben A. Mesander) writes:
>I've been porting GNU Chess to the Amiga with Lattice 5.05. I've come
>across a compiler message something along the lines of:
>"Object size larger than 32768 bytes, some branches may be incorrect.
>Please place subroutines in separate modules".
>(That's not it, exactly... but from memory)
>
>This error message is not in the compiler manual. I'm compiling the source
>code with the -r0 and -b0 options, which allow full 32-bit addressing for
>code and data, so I would not expect any 32K size limit.
>
>The resulting code _seems_ to work O.K.
>
>Why does this happen? I'd rather not go around re-arranging all the code
>in a GNU distribution. Is this fixed in SAS/C 5.10?

That (and prior) version of Lattice (SAS) C uses pc-relative branches for
function calls to functions within the same source module. This efectively
limits the size of a particular source module's code hunk to 32K. If you
are lucky, all of your calls will be within range, and it will work. I don't
think I would trust it, however, since the compiler generates the branch
offsets, not the linker, and the compiler is complaining.

In general, any source file large enough to generate that warning is too big!
The suggestion (splitting it up into smaller files) is good advice. Of course,
it's not your fault that the GNU developers like to create unmaintainable source.

There were/are other 32K-type limits. A switch statement block could not exceed
32K, I think, and there was also some limitation about the size of a single
function. Most, if not all, of these limitations are resolved in the current
release (v5.10). Your options appear to be either split up the file, or update
your compiler.


-- 
John Meissen .............................. Oregon Advanced Computing Institute
jmeissen@oacis.org        (Internet) | "That's the remarkable thing about life;
..!sequent!oacis!jmeissen (UUCP)     |  things are never so bad that they can't
jmeissen                  (BIX)      |  get worse." - Calvin & Hobbes