On Fri, 19 Jan 2007 15:26:06 +0100, kanishk rastogi <kanishk.85@xxxxxxxxx>
wrote:
On 1/19/07, Anders Schau Knatten <anders@xxxxxxxxxxx> wrote:
I am trying to find some info on calling conventions used by g++ and
g77,
but I cannot find anything in the manuals [1] and [2]. Does anyone know
any other sources I could check? What I am looking for is what calling
convention is used by default by g++ and g77 on linux/ia64, and how to
change this if needed.
[1] http://gcc.gnu.org/onlinedocs/gcc-3.4.6/cpp/
[2] http://gcc.gnu.org/onlinedocs/gcc-3.3.6/g77/
if i understand you correctly then u are asking how the parameters are
are passed to function .....etc. All these are specified in
Application Binary Interface of a particular arch.
Yes, but one architecture can have several calling conventions, like
stdcall or cdecl. It is then up to the compiler to choose one of these.
The question is which one is used by gcc. I would also like to be able to
specify calling conventions in the function prototypes, but so far I have
been unsuccessfull. I have tried things like
extern "C" float __stdcall square_(float* x)
and
extern "C" float square_(float* x) __attribute__ ((__cdecl));
but they give me "syntax error" and "`__cdecl' attribute directive
ignored" respectively.
Most of the discussion on calling conventions out there seem to focus on
x86 or other architectures, and very few on IA64.
Anders
--
Why do mathematicians often confuse Christmas and Halloween?
Because Oct 31 = Dec 25.
