63 lines
1.1 KiB
C
63 lines
1.1 KiB
C
/* $NetBSD: frameasm.h,v 1.3 2002/06/03 18:23:16 fvdl Exp $ */
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#ifndef _X86_64_MACHINE_FRAMEASM_H
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#define _X86_64_MACHINE_FRAMEASM_H
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/*
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* Macros to define pushing/popping frames for interrupts, traps
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* and system calls. Currently all the same; will diverge later.
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*/
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/*
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* These are used on interrupt or trap entry or exit.
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*/
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#define INTR_SAVEARGS \
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pushq %rax ; \
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pushq %rcx ; \
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pushq %rdx ; \
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pushq %rbx ; \
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pushq %rbp ; \
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pushq %rsi ; \
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pushq %rdi ; \
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pushq %r8 ; \
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pushq %r9 ; \
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pushq %r10 ; \
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pushq %r11 ; \
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pushq %r12 ; \
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pushq %r13 ; \
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pushq %r14 ; \
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pushq %r15
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#define INTR_RESTOREARGS \
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popq %r15 ; \
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popq %r14 ; \
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popq %r13 ; \
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popq %r12 ; \
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popq %r11 ; \
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popq %r10 ; \
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popq %r9 ; \
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popq %r8 ; \
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popq %rdi ; \
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popq %rsi ; \
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popq %rbp ; \
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popq %rbx ; \
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popq %rdx ; \
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popq %rcx ; \
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popq %rax
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#define INTRENTRY \
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testq $SEL_UPL,24(%rsp) ; \
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je 98f ; \
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swapgs ; \
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98: INTR_SAVEARGS
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#define INTRFASTEXIT \
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INTR_RESTOREARGS ; \
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addq $16,%rsp ; \
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testq $SEL_UPL,8(%rsp) ;\
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je 99f ;\
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swapgs ;\
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99: iretq
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#endif /* _X86_64_MACHINE_FRAMEASM_H */
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