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digitalmars.D - Runtime Support

reply Oleksii Skidan <2210122 mail.ru> writes:
Hello everybody, I wonder if there's a way to disable run time support? For
example, C++ is loosely tied to RTTI, exceptions and other run time stuff, and
G++ gives us a way to disable them: --fno-rtti, --fno-exceptions etc... I guess
other compilers do. But it seems no way to do the same thing in DMD or GDC.

Thanks in advance,
Oleksii.
Jul 26 2008
next sibling parent Tomas Lindquist Olsen <tomas famolsen.dk> writes:
Oleksii Skidan wrote:

 Hello everybody, I wonder if there's a way to disable run time support? For
example, C++ is loosely tied to RTTI, exceptions and other run time stuff, and
G++ gives us a way to disable them: --fno-rtti, --fno-exceptions etc... I guess
other compilers do. But it seems no way to do the same thing in DMD or GDC.
 
 Thanks in advance,
 Oleksii.


The D runtime library is heavily tied to TypeInfo/ClassInfo/ModuleInfo (D's
RTTI "equivalent"). 
Thus removing these will break pretty much everything...

Exceptions should be possible to eliminate though...

I LLVMDC I've added a -noruntime switch, which will error out if it reaches an
expression that 
implicitly invokes the runtime.

Tomas
Jul 26 2008
prev sibling parent Sean Kelly <sean invisibleduck.org> writes:
== Quote from Oleksii Skidan (2210122 mail.ru)'s article

 Hello everybody, I wonder if there's a way to disable run time support? For


example, C++ is loosely tied to RTTI, exceptions and other run time stuff, and
G++
gives us a way to disable them: --fno-rtti, --fno-exceptions etc... I guess
other
compilers do. But it seems no way to do the same thing in DMD or GDC.

There is no way to do this.  For better or worse, certain language features rely
on the existence of compiler-generated TypeInfo.  People /have/ asked in the
past
for some way get rid of TypeInfo if they don't want it, but the request never
got
anywhere... probably because it would break these language features.


Sean
Jul 26 2008