Trying to use a library in StromC V4 (default gcc compiler)

[NovaCoder]

Hiya,

I thought this would be easy but of course it's not

I'm trying to use someone else's sound library in my C++ project, I don't know much about this library but I do have the original source code (SAS/C) that used it plus (I think) the assembler source code of the library itself

I was hoping it would be as easy as adding the library to my project's list of libraries in Storm C and then adding the library's header file but this just results in Storm C giving me a linker error saying that the library is already linked

The original code used the following method of loading the library

DoomSndBase = OpenLibrary ("doomsound.library",37)

And the following header file declartion

 
extern void Sfx_SetVol (int vol);
#pragma libcall DoomSndBase Sfx_SetVol 1e 001

If I try to copy this in my project (without adding the library through the IDE) it also refuses to link because the linker cannot find the objects to go with these method declarations...even though they are marked as 'external'

Now I've read that this weird Pragma calls are compiler specific...is this the cause of my angst? If so, how do determine the correct ones for the version of GCC that I'm using?

[NovaCoder]

After looking at a StormC shared library example it looks like you need to include an assembler file representation of the library you are trying to link to. This seems more than a little odd to me, why do you need to do this?

In the example they refer to it as an assembler 'stub' but to me it looks like it contains the actual implementation, is that correct?

stubs.asm

 
XREF _TestBase
XDEF _AddTwo
XDEF _AddThree
 
_AddTwo
move.l 4(sp),d0
move.l 8(sp),d1
move.l a6,-(sp)
move.l _TestBase,a6
jsr -30(a6)
move.l (sp)+,a6
rts
_AddThree
movem.l a6/d2,-(sp)
move.l 12(sp),d0
move.l 16(sp),d1
move.l 20(sp),d2
move.l _TestBase,a6
jsr -36(a6)
movem.l (sp)+,a6/d2
rts

And the actual library's scource code implementation looks like this

#pragma libbase LibBase
 
int AddTwo(__REGD0(int a), __REGD1(int b), __REGA6(struct LibBase *base))
{
return base->last_result = a + b;
}
 
int AddThree(__REGD0(int a), __REGD1(int b), __REGD2(int c), __REGA6(struct LibBase *base))
{
return base->last_result = a + b + c;
}

[NovaCoder]

Well it appears that this is just an ASM Stub so the question is how to I generate a STUB for the library that I want to link to in my STORM project?

[NovaCoder]

I've just been told (thanks Sam Crow) that FD2Pragma is used to generate the assembler STUB.