Re: [x86 setup 13/33] Header file to produce 16-bit code with gcc

On Tuesday 10 July 2007 16:16:29 Segher Boessenkool wrote:
> > gcc for i386 can be used with the assembly prefix ".code16gcc" to  
> > generate
> > 16-bit (real-mode) code.  This header file provides the assembly  
> > prefix.
> 
> This only works correctly with newer GCCs if you pass the
> -fno-toplevel-reorder option (and it only works on older
> GCC versions by accident).

And on older ones (gcc-3.3-hammer / 3.4 / 4.0 ) -fno-unit-at-a-time

Still it seems quite fragile to me agreed.

-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Follow-Ups:
- Re: [x86 setup 13/33] Header file to produce 16-bit code with gcc
  - From: Segher Boessenkool <[email protected]>
- Re: [x86 setup 13/33] Header file to produce 16-bit code with gcc
  - From: "H. Peter Anvin" <[email protected]>

References:
- x86 setup code rewrite in C
  - From: "H. Peter Anvin" <[email protected]>
- [x86 setup 13/33] Header file to produce 16-bit code with gcc
  - From: "H. Peter Anvin" <[email protected]>
- Re: [x86 setup 13/33] Header file to produce 16-bit code with gcc
  - From: Segher Boessenkool <[email protected]>

Prev by Date: Re: [patch -rss] Make RSS accounting display more user friendly
Next by Date: Re: Failure to properly reinit i8042 post suspend-to-ram
Previous by thread: Re: [x86 setup 13/33] Header file to produce 16-bit code with gcc
Next by thread: Re: [x86 setup 13/33] Header file to produce 16-bit code with gcc
Index(es):
- Date
- Thread

[Index of Archives] [Kernel Newbies] [Netfilter] [Bugtraq] [Photo] [Stuff] [Gimp] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Video 4 Linux] [Linux for the blind] [Linux Resources]