Compiling assembly code into project

knutso · 02-26-2002, 02:02 PM

I can't seem to reference functions in the assembled .obj file from my project.. How is this done?
I'm using Watcom C, and included the file in the project, still it will say that the function doesn't exist. Does the prototype have to look in a particular way?
I've prototyped it like this: void somefunc(void);
Any suggestions?

Best regards knutso

**Salem** · 02-26-2002, 02:08 PM

> I've prototyped it like this: void somefunc(void);
But when you try and call this, and the linker tells you it's unresolved, what is the actual symbol name.

Some compilers prefix the name with an underscore, so somefunc in your code would actually be _somefunc to the linker.

It's the linker version of the name which you want to be using for the name of the function in your asm file.

I'm assuming that the compiler and and assembler are matched - in that they produce a common .OBJ format.

knutso · 02-26-2002, 03:24 PM

Hi, and thanks for the reply.
The assembler, compiler and linker are all part of the Watcom package, so they should match..
The functions are prefixed with an underscore too..

02-26-2002, 02:02 PM	#1
knutso Registered User Join Date: Feb 2002 Posts: 328	Compiling assembly code into project I can't seem to reference functions in the assembled .obj file from my project.. How is this done? I'm using Watcom C, and included the file in the project, still it will say that the function doesn't exist. Does the prototype have to look in a particular way? I've prototyped it like this: void somefunc(void); Any suggestions? Best regards knutso
knutso is offline

02-26-2002, 02:08 PM	#2
Salem and the hat of Jobseeking Join Date: Aug 2001 Location: The edge of the known universe Posts: 21,648	> I've prototyped it like this: void somefunc(void); But when you try and call this, and the linker tells you it's unresolved, what is the actual symbol name. Some compilers prefix the name with an underscore, so somefunc in your code would actually be _somefunc to the linker. It's the linker version of the name which you want to be using for the name of the function in your asm file. I'm assuming that the compiler and and assembler are matched - in that they produce a common .OBJ format.
Salem is offline

02-26-2002, 03:24 PM	#3
knutso Registered User Join Date: Feb 2002 Posts: 328	assembler code Hi, and thanks for the reply. The assembler, compiler and linker are all part of the Watcom package, so they should match.. The functions are prefixed with an underscore too..
knutso is offline

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