diff options
Diffstat (limited to 'arch/i386/boot/code16gcc.h')
| -rw-r--r-- | arch/i386/boot/code16gcc.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/i386/boot/code16gcc.h b/arch/i386/boot/code16gcc.h new file mode 100644 index 00000000000..3bd848093b9 --- /dev/null +++ b/arch/i386/boot/code16gcc.h @@ -0,0 +1,15 @@ +/* + * 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 |