Amol -
Unlikely. It depends on your individual compiler and support library. Many
support libraries call underlying OS services directly, which obviously will
not work on UEFI. Also, adding the standard library to your build may confuse
the build process as to which should be used: the UEFI library or the one that
supports your OS. In my experience with C++ on UEFI, supported had to be ported
into EDK2 libraries natively.
Tim
From: Amol Tasgaonkar [mailto:amol...@yahoo.com]
Sent: Thursday, October 18, 2012 10:08 AM
To: Andrew Fish
Cc: edk2-devel@lists.sourceforge.net
Subject: Re: [edk2] Does UEFI support C++ Exception handling.
Is it posssible to still continue to static link with Standard libs to resolve
linking problems. Do you think the c++ exception handling will work? The idea
here is to use the limited subset of the functionlity provided by the C++
library for the porting effort. Do you see any problems in this approach ?
-Amol.
From: Andrew Fish <af...@apple.com<mailto:af...@apple.com>>
To: Amol Tasgaonkar <amol...@yahoo.com<mailto:amol...@yahoo.com>>
Cc: "edk2-devel@lists.sourceforge.net<mailto:edk2-devel@lists.sourceforge.net>"
<edk2-devel@lists.sourceforge.net<mailto:edk2-devel@lists.sourceforge.net>>
Sent: Wednesday, October 17, 2012 5:03 PM
Subject: Re: [edk2] Does UEFI support C++ Exception handling.
On Oct 17, 2012, at 4:53 PM, Amol Tasgaonkar wrote:
So does this means that we cannot use STL's too ? I am surprized to know this.
EFI is like the kernel or devices drivers and it is written in C. I don't think
there is any C++ support on the open source? I was just reference some one was
doing the experiment on the side and talking about it on the mailing list.
Well all you have to do is link your application without any standard libs. All
the intrinsic calls generated by the complier and std libs called by your code
will fail to link. You can then implement these functions in an library that
does the right thing for EFI and you should be good. When you have this
exercise in front of you the idea of embedded C++ may seem like a better
idea..... I'm sure that is the only reason some one started with embedded C++
as it would be easier to port.
Thanks,
Andrew
From: Andrew Fish <af...@apple.com<mailto:af...@apple.com>>
To: Amol Tasgaonkar <amol...@yahoo.com<mailto:amol...@yahoo.com>>;
edk2-devel@lists.sourceforge.net<mailto:edk2-devel@lists.sourceforge.net>
Sent: Wednesday, October 17, 2012 4:11 PM
Subject: Re: [edk2] Does UEFI support C++ Exception handling.
On Oct 17, 2012, at 4:04 PM, Amol Tasgaonkar wrote:
Hi,
I wanted to check if I could have C++ exception handling done in the EFI
application/
No. We generally don't support C++, I think some folks may have played with
embedded C++, but that does not support exceptions either.
We don't link against standard libraries, and we generally try to avoid writing
code that generates compiler intrinsics where possible.
Thank,
With Best Regards,
-Amol.
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