C and ASM sources in one task

QNX Newsgroups (Archives) comp.os.qnx
1

Can I combine C-sources and ASM - sources in one task where
ASM sources describe some function calls.

The problem is C add in the end function call name '’ symbol
( function_call_name() in C-source define funcion_call_name call ),
but assembler not.

2

Assuming you’re talking about QNX4 and Watcom…

You can change this behavior using #pragmas. Check out the documentation
on auxiliary pragmas:

#pragma aux function_call_name “_*”;

Note also that Watcom uses register argument passing by default. Also
this behavior can be changed with #pragmas. Or you can take advantage of
this register passing convention to gain more speed. (Yes: even the
choice of registers is #pragma controllable :slight_smile:

Long ago in a previous life, I ventured to build MINIX under QNX4/Watcom
just for fun, and had to deal with these issues :slight_smile:

Good luck,

rick

Leonid Khait wrote:

Can I combine C-sources and ASM - sources in one task where
ASM sources describe some function calls.

The problem is C add in the end function call name '’ symbol
( function_call_name() in C-source define funcion_call_name call ),
but assembler not.