Re: [gccsdk] no main

On 15/09/15 10:13, Gavin Wraith wrote:
> Apologies - scrub my last post. I had forgot the shared flag, among other idiocies.
> With the command
>
> gcc -std=gnu99 -fPIC -O2 -Wall -Wextra -Wl,-E -shared -mfpu=vfp -DRISCOS -o so/riscos riscoslib.c sys.s
>
> the plugin file gets created OK. However when I run my test program the dynamic linker
> complains that it cannot resolve two symbols: 'rdir' and 'swi_call'.
> These are declared .global in the gas source sys.s. In fact they are the first
> in the lists of such declarations that appear in the source. There are 12
> such symbols declared and I am not sure whether the other 10 have been recognized
> or whether the linker has simply bailed out after two failures. The
> latter seems most likely.
> Evidently the command shown above is not resolving the references in riscoslib.o to sys.o.
> I need sys.o to be statically linked to riscoslib.o to create the plugin.

Does the interpreter reference these two symbols directly rather than
via dlsym?

Lee.


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