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Commit f7f4a5fb authored by H. Peter Anvin's avatar H. Peter Anvin Committed by Linus Torvalds
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Header file to produce 16-bit code with gcc 



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.

Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 8afd2af8

arch/i386/boot/code16gcc.h

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+15 −0
Original line number Diff line number Diff line 
/*

 * code16gcc.h

 *

 * This file is -include'd when compiling 16-bit C code.

 * Note: this asm() needs to be emitted before gcc omits any code.

 * Depending on gcc version, this requires -fno-unit-at-a-time or

 * -fno-toplevel-reorder.

 *

 * Hopefully gcc will eventually have a real -m16 option so we can

 * drop this hack long term.

 */



#ifndef __ASSEMBLY__

asm(".code16gcc");

#endif