[Tinycc-devel] ARM GOT initialization problem

[David Given]

I'm trying to use tcc as an ELF module loader on a platform that doesn't
normally have one. (This works pretty well, BTW.) I'm loading .o files
built with gcc, adding some dynamically generated glue compiled
on-the-fly with libtcc, and then running it.

However, whenever the gcc-generated code tries to do stuff with global
variables, it behaves really weirdly and crashes. Unfortunately I don't
have a debugger so investigation involves lots of printf statements, but
it appears that the globals aren't being initialised correctly.

Searching the mailing list reveals this thread from 2006:

http://lists.gnu.org/archive/html/tinycc-devel/2006-12/msg00018.html

(Summary: tcc allocates space for the GOT but doesn't initialise it.)

Does anyone know if this ever got fixed?

Assuming that it hasn't, then as a workaround, is it possible to
persuade gcc *not* to route globals via the GOT but to instead to just
generate old-fashioned absolute references via a constant pool instead?
If so, does anyone know how? Doing web searches for 'got' is
surprisingly hard...

-- 
David Given
address@hidden

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