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Add definition for CPU-private data (in a remapped page in the data 

segment). Somewhat of a kludge to be able to switch stack pointers
in in the syscall entry point without clobering a register, avoiding
the terror of 'swapgs'.
This commit is contained in:
fvdl 2002-05-28 23:09:36 +00:00
parent cfe60d7a95
commit 8b277a3d68
1 changed files with 3 additions and 1 deletions
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4
sys/arch/x86_64/include/frameasm.h
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@ -1,4 +1,4 @@
/* $NetBSD: frameasm.h,v 1.1 2001/06/19 00:20:10 fvdl Exp $ */
/* $NetBSD: frameasm.h,v 1.2 2002/05/28 23:09:36 fvdl Exp $ */
#ifndef _X86_64_MACHINE_FRAMEASM_H
#define _X86_64_MACHINE_FRAMEASM_H
@ -50,4 +50,6 @@
addq $16,%rsp ; \
iretq
#define CPUPRIV(off) (cpu_private+CPRIV_/**/off)(%rip)
#endif /* _X86_64_MACHINE_FRAMEASM_H */