In plplot-5.7.3/examples/ada/x12a.adb, the sprintf function is declared
and imported as follows:
procedure Sprintf( buffer : out char_array; format : in char_array;
variable: in PLFLT );
pragma Import(C, Sprintf, "sprintf" );
This is incorrect because sprintf's declaration is sprintf (char *,
const char *, ...) (varargs) not sprintf (char *, const char *, float).
This happens to work on i386 because of the ABI happens to be the
same. It isn't on x86_64 and so crashes. See
https://bugzilla.redhat.com/bugzilla/process_bug.cgi#c1 and the
http://gcc.gnu.org/onlinedocs/gnat_ugn_unw/Calling-Conventions.html note
about varargs for more info.
If you really need to use sprintf you'll need to write a write a
sprintff(char *, const char *, float) wrapper to sprintf and interface
to that. Likewise for any other arguments used (currently just the one).
Not sure if any plplot routines use varargs arguments, but if so the
current ada imports are probably incorrect.
--
Orion Poplawski
Technical Manager 303-415-9701 x222
NWRA/CoRA Division FAX: 303-415-9702
3380 Mitchell Lane [EMAIL PROTECTED]
Boulder, CO 80301 http://www.cora.nwra.com
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