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7164aacfce
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 almost a completely mechanical patch (done with a simple "sed -i" statement), with one comment tweaked manually in arch/m68k/include/asm/mac_baboon.h (which was missing underscores). Signed-off-by: Thomas Huth <thuth@redhat.com> Acked-by: Greg Ungerer <gerg@linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/20250611114056.118309-3-thuth@redhat.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_M68K_THREAD_INFO_H
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#define _ASM_M68K_THREAD_INFO_H
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#include <asm/types.h>
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#include <asm/page.h>
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/*
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* On machines with 4k pages we default to an 8k thread size, though we
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* allow a 4k with config option. Any other machine page size then
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* the thread size must match the page size (which is 8k and larger here).
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*/
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#if PAGE_SHIFT < 13
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#ifdef CONFIG_4KSTACKS
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#define THREAD_SIZE_ORDER 0
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#else
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#define THREAD_SIZE_ORDER 1
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#endif
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#else
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#define THREAD_SIZE_ORDER 0
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#endif
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#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
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#ifndef __ASSEMBLER__
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struct thread_info {
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struct task_struct *task; /* main task structure */
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unsigned long flags;
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int preempt_count; /* 0 => preemptable, <0 => BUG */
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__u32 cpu; /* should always be 0 on m68k */
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unsigned long tp_value; /* thread pointer */
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};
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#endif /* __ASSEMBLER__ */
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#define INIT_THREAD_INFO(tsk) \
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{ \
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.task = &tsk, \
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.preempt_count = INIT_PREEMPT_COUNT, \
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}
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#ifndef __ASSEMBLER__
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/* how to get the thread information struct from C */
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static inline struct thread_info *current_thread_info(void)
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{
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struct thread_info *ti;
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__asm__(
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"move.l %%sp, %0 \n\t"
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"and.l %1, %0"
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: "=&d"(ti)
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: "di" (~(THREAD_SIZE-1))
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);
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return ti;
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}
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#endif
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/* entry.S relies on these definitions!
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* bits 0-7 are tested at every exception exit
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* bits 8-15 are also tested at syscall exit
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*/
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#define TIF_NOTIFY_SIGNAL 4
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#define TIF_NOTIFY_RESUME 5 /* callback before returning to user */
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#define TIF_SIGPENDING 6 /* signal pending */
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#define TIF_NEED_RESCHED 7 /* rescheduling necessary */
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#define TIF_SECCOMP 13 /* seccomp syscall filtering active */
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#define TIF_DELAYED_TRACE 14 /* single step a syscall */
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#define TIF_SYSCALL_TRACE 15 /* syscall trace active */
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#define TIF_MEMDIE 16 /* is terminating due to OOM killer */
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#define TIF_RESTORE_SIGMASK 18 /* restore signal mask in do_signal */
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#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
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#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
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#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
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#define _TIF_SECCOMP (1 << TIF_SECCOMP)
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#define _TIF_DELAYED_TRACE (1 << TIF_DELAYED_TRACE)
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#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
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#define _TIF_MEMDIE (1 << TIF_MEMDIE)
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#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
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#endif /* _ASM_M68K_THREAD_INFO_H */
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