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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * Save registers before calling assembly functions. This avoids
- * disturbance of register allocation in some inline assembly constructs.
- * Copyright 2001,2002 by Andi Kleen, SuSE Labs.
- */
- #include <linux/linkage.h>
- #include "calling.h"
- #include <asm/asm.h>
- #include <asm/export.h>
- /* rdi: arg1 ... normal C conventions. rax is saved/restored. */
- .macro THUNK name, func
- SYM_FUNC_START_NOALIGN(\name)
- pushq %rbp
- movq %rsp, %rbp
- pushq %rdi
- pushq %rsi
- pushq %rdx
- pushq %rcx
- pushq %rax
- pushq %r8
- pushq %r9
- pushq %r10
- pushq %r11
- call \func
- jmp __thunk_restore
- SYM_FUNC_END(\name)
- _ASM_NOKPROBE(\name)
- .endm
- THUNK preempt_schedule_thunk, preempt_schedule
- THUNK preempt_schedule_notrace_thunk, preempt_schedule_notrace
- EXPORT_SYMBOL(preempt_schedule_thunk)
- EXPORT_SYMBOL(preempt_schedule_notrace_thunk)
- SYM_CODE_START_LOCAL_NOALIGN(__thunk_restore)
- popq %r11
- popq %r10
- popq %r9
- popq %r8
- popq %rax
- popq %rcx
- popq %rdx
- popq %rsi
- popq %rdi
- popq %rbp
- RET
- _ASM_NOKPROBE(__thunk_restore)
- SYM_CODE_END(__thunk_restore)
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