what are ABI'sin C++
-Parag
19  1989 
On May 14, 10:16*am, "parag_p...@hot mail.com" <parag_p...@hot mail.com>
wrote:
what are ABI'sin C++
-Parag
Do you mean this? http://en.wikipedia.org/wiki/Applica...nary_interface
They are at best peripheral to this news group, as they
are not part of the language standard. How the language
connects and communicates with the OS is not defined in
any great detail for C++.
Socks
On May 14, 4:45 pm, Puppet_Sock <puppet_s...@ho tmail.comwrote:
On May 14, 10:16 am, "parag_p...@hot mail.com" <parag_p...@hot mail.com>
wrote:
what are ABI'sin C++
Do you mean this?
http://en.wikipedia.org/wiki/Applica...nary_interface
They are at best peripheral to this news group, as they are
not part of the language standard. How the language connects
and communicates with the OS is not defined in any great
detail for C++.
They are and they aren't relevant to the newsgroup. There have
been efforts to define a portable ABI for C++, at least for
specific platforms. (I think there is one for the Itanium
architecture.) And it's a constant source of discussion: why
can't I link code compiled with Borland with code compiled with
Microsoft (which is possible for C)? In many ways, it's a
serious problem with C++ that the question doesn't have any
answers which would be really relevant here: that if I have a
third party library which I have to use, and it is compiled with
Sun CC, I can't use g++. (See the thread on binary
compatility.) It's an issue which all C++ programmers face at
one time or another.
--
James Kanze (GABI Software) email:ja******* **@gmail.com
Conseils en informatique orientée objet/
Beratung in objektorientier ter Datenverarbeitu ng
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James Kanze wrote:
And it's a constant source of discussion: why
can't I link code compiled with Borland with code compiled with
Microsoft (which is possible for C)?
A standardized ABI would allow even more than that. For example, it
would allow linking object files created by compilers of different
languages into the binary (such as for example object files created by a
pascal compiler).
Btw, isn't the .NET framework some kind of attempt to do exactly that,
ie. being able to call libraries made in any language from another language?
And it's a constant source of discussion: why
can't I link code compiled with Borland with code compiled with
Microsoft (which is possible for C)? In many ways, it's a
serious problem with C++ that the question doesn't have any
answers which would be really relevant here
Which is why I was so damn disappointed when I knew that the TR1
didn't even consider the ABIs. Truly a shame IMO.
Regards,
Fernando.
On 2008-05-15 14:06, Juha Nieminen wrote:
James Kanze wrote:
>And it's a constant source of discussion: why
can't I link code compiled with Borland with code compiled with
Microsoft (which is possible for C)?
A standardized ABI would allow even more than that. For example, it
would allow linking object files created by compilers of different
languages into the binary (such as for example object files created by a
pascal compiler).
Btw, isn't the .NET framework some kind of attempt to do exactly that,
ie. being able to call libraries made in any language from another language?
Kind of, the idea behind .Net is that you "compile" code in different
languages into a standardised byte-code format (the Common Intermediate
Language), This allows you to link to any other module compiled to the
CIL. Unfortunately the CIL is quite high-level and many existing
languages (such as C++) can not be accurately translated to CIL which is
why you get .Net versions of those languages (like C++/CLI).
--
Erik Wikström
On May 15, 6:43 pm, Fernando Gómez <fernando.a.gom e...@gmail.com>
wrote:
And it's a constant source of discussion: why
can't I link code compiled with Borland with code compiled with
Microsoft (which is possible for C)? In many ways, it's a
serious problem with C++ that the question doesn't have any
answers which would be really relevant here
Which is why I was so damn disappointed when I knew that the TR1
didn't even consider the ABIs. Truly a shame IMO.
The reason is simple: any API must be platform specific (at
least given current technology). There's no way code that I
compile on my Sun Sparc can be made to run on a PC. Thus,
languages which don't depend on a virtual machine can't define
a standard API. For that matter, even languages like Java,
which do define one (through JVM), tend to consider it separate
from the language standard: the specification of the Java
language doesn't specify an API, and the specification of JVM
doesn't specify the language used to compile to it.
As has been frequently pointed out, JVM is actually a platform,
like Windows on a PC. And it is the platform which should
define the API (which should apply to all of the programming
languages on the platform). The current situation is that most
platforms do define an API, but without many of the elements
needed for C++. So each compiler extends the platform API in a
different way. If I use C or Fortran, I can link code compiled
with the Sun compiler with code compiled with the GNU compiler.
If I use C++ (or Ada, I think), I can't. The problem isn't with
the C++ or Ada language standard, but with Sun's standard for
Solaris.
--
James Kanze (GABI Software) email:ja******* **@gmail.com
Conseils en informatique orientée objet/
Beratung in objektorientier ter Datenverarbeitu ng
9 place Sémard, 78210 St.-Cyr-l'École, France, +33 (0)1 30 23 00 34
On May 15, 2:06 pm, Juha Nieminen <nos...@thanks. invalidwrote:
James Kanze wrote:
And it's a constant source of discussion: why
can't I link code compiled with Borland with code compiled with
Microsoft (which is possible for C)?
A standardized ABI would allow even more than that. For
example, it would allow linking object files created by
compilers of different languages into the binary (such as for
example object files created by a pascal compiler).
Up to a point. The supported types still have to be more or
less the same: you won't be able to pass BCD from Cobol to C++,
nor a C++ class to C, and expect it to work right.
Btw, isn't the .NET framework some kind of attempt to do
exactly that, ie. being able to call libraries made in any
language from another language?
An API depends on the platform. I'm not too familiar with .NET,
but I think it's something along the lines of JVM: a "platform"
designed to be easily and efficiently emulated on a variety of
hardware platforms. (Unlike JVM, on the other hand, I think it
does try to take a number of different languages into
consideration.)
--
James Kanze (GABI Software) email:ja******* **@gmail.com
Conseils en informatique orientée objet/
Beratung in objektorientier ter Datenverarbeitu ng
9 place Sémard, 78210 St.-Cyr-l'École, France, +33 (0)1 30 23 00 34
And it's a constant source of discussion: why
can't I link code compiled with Borland with code compiled with
Microsoft (which is possible for C)? In many ways, it's a
serious problem with C++ that the question doesn't have any
answers which would be really relevant here
Which is why I was so damn disappointed when I knew that the TR1
didn't even consider the ABIs. Truly a shame IMO.
The reason is simple: any API must be platform specific (at
least given current technology). There's no way code that I
compile on my Sun Sparc can be made to run on a PC. Thus,
languages which don't depend on a virtual machine can't define
a standard API. For that matter, even languages like Java,
which do define one (through JVM), tend to consider it separate
from the language standard: the specification of the Java
language doesn't specify an API, and the specification of JVM
doesn't specify the language used to compile to it.
As has been frequently pointed out, JVM is actually a platform,
like Windows on a PC. And it is the platform which should
define the API (which should apply to all of the programming
languages on the platform). The current situation is that most
platforms do define an API, but without many of the elements
needed for C++. So each compiler extends the platform API in a
different way. If I use C or Fortran, I can link code compiled
with the Sun compiler with code compiled with the GNU compiler.
If I use C++ (or Ada, I think), I can't. The problem isn't with
the C++ or Ada language standard, but with Sun's standard for
Solaris.
But AFAIK, C does define an ABI.
I don't actually notice what the API has to do with the ABI, or why an
ABI has to be plataform specific.
Regards,
Fernando.
I don't actually notice what the API has to do with the ABI,
or why an ABI has to be plataform specific.
Well, the ABI for C on a Sparc, under Solaris, says that the
first five arguments go into the registers o0-o4, at least if
they are int's or pointers. That's going to be a little bit
hard to implement on an Intel, which doesn't have as many
registers (and above all, doesn't manage them at all in the same
manner).
Ok, I think then that I had a wrong concept of an ABI. I thought it
was all about mangling and calling conventions. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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