106 lines
2.0 KiB
C
106 lines
2.0 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1994, 95, 96, 99, 2001 Ralf Baechle
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* Copyright (C) 1994, 1995, 1996 Paul M. Antoine.
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* Copyright (C) 1999 Silicon Graphics, Inc.
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* Copyright (C) 2007 Maciej W. Rozycki
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*/
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#ifndef _ASM_STACKFRAME_H
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#define _ASM_STACKFRAME_H
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#include <asm/asm.h>
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#include <asm/mipsregs.h>
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#include <asm/asm-offsets.h>
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.macro SAVE_AT
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.set push
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.set noat
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LONG_S $1, PT_R1(sp)
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.set pop
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.endm
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.macro SAVE_TEMP
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mfhi v1
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#ifdef CONFIG_32BIT
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LONG_S $8, PT_R8(sp)
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LONG_S $9, PT_R9(sp)
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#endif
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LONG_S $10, PT_R10(sp)
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LONG_S $11, PT_R11(sp)
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LONG_S $12, PT_R12(sp)
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LONG_S v1, PT_HI(sp)
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mflo v1
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LONG_S $13, PT_R13(sp)
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LONG_S $14, PT_R14(sp)
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LONG_S $15, PT_R15(sp)
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LONG_S $24, PT_R24(sp)
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LONG_S v1, PT_LO(sp)
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.endm
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.macro SAVE_STATIC
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LONG_S $16, PT_R16(sp)
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LONG_S $17, PT_R17(sp)
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LONG_S $18, PT_R18(sp)
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LONG_S $19, PT_R19(sp)
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LONG_S $20, PT_R20(sp)
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LONG_S $21, PT_R21(sp)
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LONG_S $22, PT_R22(sp)
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LONG_S $23, PT_R23(sp)
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LONG_S $30, PT_R30(sp)
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.endm
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.macro SAVE_SOME
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.set push
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.set noat
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.set reorder
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.set at=k0
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move k1, sp
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PTR_SUBU k1, PT_SIZE
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.set noat
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move k0, sp
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move sp, k1
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LONG_S k0, PT_R29(sp)
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LONG_S $3, PT_R3(sp)
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/*
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* You might think that you don't need to save $0,
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* but the FPU emulator and gdb remote debug stub
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* need it to operate correctly
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*/
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LONG_S $0, PT_R0(sp)
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mfc0 v1, CP0_STATUS
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LONG_S $2, PT_R2(sp)
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LONG_S v1, PT_STATUS(sp)
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LONG_S $4, PT_R4(sp)
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mfc0 v1, CP0_CAUSE
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LONG_S $5, PT_R5(sp)
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LONG_S v1, PT_CAUSE(sp)
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LONG_S $6, PT_R6(sp)
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MFC0 v1, CP0_EPC
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LONG_S $7, PT_R7(sp)
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#ifdef CONFIG_64BIT
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LONG_S $8, PT_R8(sp)
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LONG_S $9, PT_R9(sp)
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#endif
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LONG_S v1, PT_EPC(sp)
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LONG_S $25, PT_R25(sp)
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LONG_S $28, PT_R28(sp)
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LONG_S $31, PT_R31(sp)
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.set pop
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.endm
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.macro SAVE_ALL
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SAVE_SOME
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SAVE_AT
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SAVE_TEMP
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SAVE_STATIC
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.endm
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#endif /* _ASM_STACKFRAME_H */
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