linux/arch/x86/realmode/rm/realmode.h
Thomas Huth 24a295e4ef x86/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-UAPI headers
While the GCC and Clang compilers already define __ASSEMBLER__
automatically when compiling assembly code, __ASSEMBLY__ is a
macro that only gets defined by the Makefiles in the kernel.

This can be very confusing when switching between userspace
and kernelspace coding, or when dealing with UAPI headers that
rather should use __ASSEMBLER__ instead. So let's standardize on
the __ASSEMBLER__ macro that is provided by the compilers now.

This is mostly a mechanical patch (done with a simple "sed -i"
statement), with some manual tweaks in <asm/frame.h>, <asm/hw_irq.h>
and <asm/setup.h> that mentioned this macro in comments with some
missing underscores.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250314071013.1575167-38-thuth@redhat.com
2025-03-19 11:47:30 +01:00

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C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef ARCH_X86_REALMODE_RM_REALMODE_H
#define ARCH_X86_REALMODE_RM_REALMODE_H
#ifdef __ASSEMBLER__
/*
* 16-bit ljmpw to the real_mode_seg
*
* This must be open-coded since gas will choke on using a
* relocatable symbol for the segment portion.
*/
#define LJMPW_RM(to) .byte 0xea ; .word (to), real_mode_seg
#endif /* __ASSEMBLER__ */
/*
* Signature at the end of the realmode region
*/
#define REALMODE_END_SIGNATURE 0x65a22c82
#endif /* ARCH_X86_REALMODE_RM_REALMODE_H */