Subject: Problems using Vortex on x86/linux/gcc-2.96
From: Christopher League (league@cs.yale.edu)
Date: Wed Sep 26 2001 - 13:01:58 PDT
Dear Cecil group,
I'm interested in toying with your Vortex compiler, on an x86-linux
machine which has gcc-2.96. I'm especially, for now, interested in
the Java front end.
I've had to tweak the sources here and there, and I've made
substantial progress getting it to build. But now I'm stuck on a
particular g++ error message when compiling Java library code
converted from RTL:
In file included from java.lang.Character.class.rtl.c:2:
java.lang.Character.class.rtl.local.h:7:
cannot convert `PairTypeP<int4> (*) (int,
CecilTaggedPointerClass *)' to `void *' in initialization
The code in question is:
DBG_E E_java_flang_fCharacter_sisLowerCase_aC_rZ =
{ "java.lang.Character.class.rtl",
&java_flang_fCharacter_sisLowerCase_aC_rZ, /* ERROR IS HERE */
1, dbg1, CecilMethodEnv
};
It seems that g++-2.96 requires an explicit (void*) cast, or else it
flags an error. I looked, in vain, for a g++ option which would force
it to ignore the error and move on. This is not an error in C, just
in C++:
% cat junk.c
extern int f (int);
struct s {void* p;} x = { &f };
% gcc -c junk.c
% g++ -c junk.c
junk.c:2: cannot convert `int (*) (int)' to `void *' in initialization
Anyway, perhaps you could point me to the code I would need to tweak
to convince Vortex to output the (void*) cast in these instances.
Or perhaps you have a newer, unreleased version which works with later
version of gcc.
Once I get this working, I'd be glad to send a patch of all the things
I needed to change. Other than some prototypes, I had to fix the
_STATIC_SEND and similar macros, removing one occurrence of the ##
operator after STRIP_PARENS.
Thanks for your time,
--Chris
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