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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
69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*---------------------------------------------------------------------------+
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| status_w.h |
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| Copyright (C) 1992,1993 |
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| W. Metzenthen, 22 Parker St, Ormond, Vic 3163, |
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| Australia. E-mail billm@vaxc.cc.monash.edu.au |
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+---------------------------------------------------------------------------*/
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#ifndef _STATUS_H_
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#define _STATUS_H_
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#include "fpu_emu.h" /* for definition of PECULIAR_486 */
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#ifdef __ASSEMBLER__
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#define Const__(x) $##x
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#else
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#define Const__(x) x
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#endif
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#define SW_Backward Const__(0x8000) /* backward compatibility */
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#define SW_C3 Const__(0x4000) /* condition bit 3 */
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#define SW_Top Const__(0x3800) /* top of stack */
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#define SW_Top_Shift Const__(11) /* shift for top of stack bits */
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#define SW_C2 Const__(0x0400) /* condition bit 2 */
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#define SW_C1 Const__(0x0200) /* condition bit 1 */
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#define SW_C0 Const__(0x0100) /* condition bit 0 */
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#define SW_Summary Const__(0x0080) /* exception summary */
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#define SW_Stack_Fault Const__(0x0040) /* stack fault */
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#define SW_Precision Const__(0x0020) /* loss of precision */
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#define SW_Underflow Const__(0x0010) /* underflow */
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#define SW_Overflow Const__(0x0008) /* overflow */
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#define SW_Zero_Div Const__(0x0004) /* divide by zero */
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#define SW_Denorm_Op Const__(0x0002) /* denormalized operand */
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#define SW_Invalid Const__(0x0001) /* invalid operation */
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#define SW_Exc_Mask Const__(0x27f) /* Status word exception bit mask */
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#ifndef __ASSEMBLER__
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#define COMP_A_gt_B 1
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#define COMP_A_eq_B 2
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#define COMP_A_lt_B 3
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#define COMP_No_Comp 4
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#define COMP_Denormal 0x20
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#define COMP_NaN 0x40
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#define COMP_SNaN 0x80
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#define status_word() \
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((partial_status & ~SW_Top & 0xffff) | ((top << SW_Top_Shift) & SW_Top))
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static inline void setcc(int cc)
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{
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partial_status &= ~(SW_C0 | SW_C1 | SW_C2 | SW_C3);
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partial_status |= (cc) & (SW_C0 | SW_C1 | SW_C2 | SW_C3);
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}
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#ifdef PECULIAR_486
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/* Default, this conveys no information, but an 80486 does it. */
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/* Clear the SW_C1 bit, "other bits undefined". */
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# define clear_C1() { partial_status &= ~SW_C1; }
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# else
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# define clear_C1()
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#endif /* PECULIAR_486 */
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#endif /* __ASSEMBLER__ */
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#endif /* _STATUS_H_ */
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