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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/powerpc/lib/crtsavres.S
10818 views
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/*

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 * Special support for eabi and SVR4

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 *

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 *   Copyright (C) 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc.

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 *   Copyright 2008 Freescale Semiconductor, Inc.

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 *   Written By Michael Meissner

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 *

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 * Based on gcc/config/rs6000/crtsavres.asm from gcc

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 * 64 bit additions from reading the PPC elf64abi document.

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 *

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 * This file is free software; you can redistribute it and/or modify it

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 * under the terms of the GNU General Public License as published by the

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 * Free Software Foundation; either version 2, or (at your option) any

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 * later version.

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 *

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 * In addition to the permissions in the GNU General Public License, the

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 * Free Software Foundation gives you unlimited permission to link the

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 * compiled version of this file with other programs, and to distribute

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 * those programs without any restriction coming from the use of this

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 * file.  (The General Public License restrictions do apply in other

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 * respects; for example, they cover modification of the file, and

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 * distribution when not linked into another program.)

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 *

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 * This file is distributed in the hope that it will be useful, but

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 * WITHOUT ANY WARRANTY; without even the implied warranty of

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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

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 * General Public License for more details.

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 *

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 * You should have received a copy of the GNU General Public License

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 * along with this program; see the file COPYING.  If not, write to

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 * the Free Software Foundation, 51 Franklin Street, Fifth Floor,

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 * Boston, MA 02110-1301, USA.

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 *

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 *    As a special exception, if you link this library with files

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 *    compiled with GCC to produce an executable, this does not cause

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 *    the resulting executable to be covered by the GNU General Public License.

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 *    This exception does not however invalidate any other reasons why

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 *    the executable file might be covered by the GNU General Public License.

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 */

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#include <asm/ppc_asm.h>

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	.file	"crtsavres.S"

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	.section ".text"

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#ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE

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#ifndef CONFIG_PPC64

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/* Routines for saving integer registers, called by the compiler.  */

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/* Called with r11 pointing to the stack header word of the caller of the */

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/* function, just beyond the end of the integer save area.  */

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_GLOBAL(_savegpr_14)

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_GLOBAL(_save32gpr_14)

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	stw	14,-72(11)	/* save gp registers */

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_GLOBAL(_savegpr_15)

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_GLOBAL(_save32gpr_15)

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	stw	15,-68(11)

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_GLOBAL(_savegpr_16)

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_GLOBAL(_save32gpr_16)

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	stw	16,-64(11)

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_GLOBAL(_savegpr_17)

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_GLOBAL(_save32gpr_17)

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	stw	17,-60(11)

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_GLOBAL(_savegpr_18)

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_GLOBAL(_save32gpr_18)

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	stw	18,-56(11)

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_GLOBAL(_savegpr_19)

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_GLOBAL(_save32gpr_19)

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	stw	19,-52(11)

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_GLOBAL(_savegpr_20)

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_GLOBAL(_save32gpr_20)

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	stw	20,-48(11)

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_GLOBAL(_savegpr_21)

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_GLOBAL(_save32gpr_21)

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	stw	21,-44(11)

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_GLOBAL(_savegpr_22)

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_GLOBAL(_save32gpr_22)

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	stw	22,-40(11)

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_GLOBAL(_savegpr_23)

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_GLOBAL(_save32gpr_23)

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	stw	23,-36(11)

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_GLOBAL(_savegpr_24)

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_GLOBAL(_save32gpr_24)

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	stw	24,-32(11)

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_GLOBAL(_savegpr_25)

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_GLOBAL(_save32gpr_25)

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	stw	25,-28(11)

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_GLOBAL(_savegpr_26)

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_GLOBAL(_save32gpr_26)

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	stw	26,-24(11)

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_GLOBAL(_savegpr_27)

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_GLOBAL(_save32gpr_27)

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	stw	27,-20(11)

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_GLOBAL(_savegpr_28)

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_GLOBAL(_save32gpr_28)

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	stw	28,-16(11)

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_GLOBAL(_savegpr_29)

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_GLOBAL(_save32gpr_29)

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	stw	29,-12(11)

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_GLOBAL(_savegpr_30)

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_GLOBAL(_save32gpr_30)

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	stw	30,-8(11)

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_GLOBAL(_savegpr_31)

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_GLOBAL(_save32gpr_31)

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	stw	31,-4(11)

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	blr

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/* Routines for restoring integer registers, called by the compiler.  */

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/* Called with r11 pointing to the stack header word of the caller of the */

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/* function, just beyond the end of the integer restore area.  */

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_GLOBAL(_restgpr_14)

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_GLOBAL(_rest32gpr_14)

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	lwz	14,-72(11)	/* restore gp registers */

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_GLOBAL(_restgpr_15)

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_GLOBAL(_rest32gpr_15)

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	lwz	15,-68(11)

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_GLOBAL(_restgpr_16)

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_GLOBAL(_rest32gpr_16)

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	lwz	16,-64(11)

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_GLOBAL(_restgpr_17)

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_GLOBAL(_rest32gpr_17)

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	lwz	17,-60(11)

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_GLOBAL(_restgpr_18)

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_GLOBAL(_rest32gpr_18)

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	lwz	18,-56(11)

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_GLOBAL(_restgpr_19)

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_GLOBAL(_rest32gpr_19)

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	lwz	19,-52(11)

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_GLOBAL(_restgpr_20)

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_GLOBAL(_rest32gpr_20)

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	lwz	20,-48(11)

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_GLOBAL(_restgpr_21)

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_GLOBAL(_rest32gpr_21)

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	lwz	21,-44(11)

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_GLOBAL(_restgpr_22)

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_GLOBAL(_rest32gpr_22)

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	lwz	22,-40(11)

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_GLOBAL(_restgpr_23)

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_GLOBAL(_rest32gpr_23)

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	lwz	23,-36(11)

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_GLOBAL(_restgpr_24)

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_GLOBAL(_rest32gpr_24)

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	lwz	24,-32(11)

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_GLOBAL(_restgpr_25)

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_GLOBAL(_rest32gpr_25)

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	lwz	25,-28(11)

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_GLOBAL(_restgpr_26)

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_GLOBAL(_rest32gpr_26)

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	lwz	26,-24(11)

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_GLOBAL(_restgpr_27)

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_GLOBAL(_rest32gpr_27)

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	lwz	27,-20(11)

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_GLOBAL(_restgpr_28)

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_GLOBAL(_rest32gpr_28)

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	lwz	28,-16(11)

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_GLOBAL(_restgpr_29)

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_GLOBAL(_rest32gpr_29)

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	lwz	29,-12(11)

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_GLOBAL(_restgpr_30)

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_GLOBAL(_rest32gpr_30)

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	lwz	30,-8(11)

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_GLOBAL(_restgpr_31)

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_GLOBAL(_rest32gpr_31)

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	lwz	31,-4(11)

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	blr

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/* Routines for restoring integer registers, called by the compiler.  */

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/* Called with r11 pointing to the stack header word of the caller of the */

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/* function, just beyond the end of the integer restore area.  */

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_GLOBAL(_restgpr_14_x)

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_GLOBAL(_rest32gpr_14_x)

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	lwz	14,-72(11)	/* restore gp registers */

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_GLOBAL(_restgpr_15_x)

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_GLOBAL(_rest32gpr_15_x)

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	lwz	15,-68(11)

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_GLOBAL(_restgpr_16_x)

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_GLOBAL(_rest32gpr_16_x)

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	lwz	16,-64(11)

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_GLOBAL(_restgpr_17_x)

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_GLOBAL(_rest32gpr_17_x)

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	lwz	17,-60(11)

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_GLOBAL(_restgpr_18_x)

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_GLOBAL(_rest32gpr_18_x)

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	lwz	18,-56(11)

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_GLOBAL(_restgpr_19_x)

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_GLOBAL(_rest32gpr_19_x)

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	lwz	19,-52(11)

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_GLOBAL(_restgpr_20_x)

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_GLOBAL(_rest32gpr_20_x)

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	lwz	20,-48(11)

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_GLOBAL(_restgpr_21_x)

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_GLOBAL(_rest32gpr_21_x)

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	lwz	21,-44(11)

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_GLOBAL(_restgpr_22_x)

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_GLOBAL(_rest32gpr_22_x)

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	lwz	22,-40(11)

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_GLOBAL(_restgpr_23_x)

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_GLOBAL(_rest32gpr_23_x)

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	lwz	23,-36(11)

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_GLOBAL(_restgpr_24_x)

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_GLOBAL(_rest32gpr_24_x)

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	lwz	24,-32(11)

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_GLOBAL(_restgpr_25_x)

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_GLOBAL(_rest32gpr_25_x)

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	lwz	25,-28(11)

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_GLOBAL(_restgpr_26_x)

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_GLOBAL(_rest32gpr_26_x)

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	lwz	26,-24(11)

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_GLOBAL(_restgpr_27_x)

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_GLOBAL(_rest32gpr_27_x)

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	lwz	27,-20(11)

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_GLOBAL(_restgpr_28_x)

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_GLOBAL(_rest32gpr_28_x)

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	lwz	28,-16(11)

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_GLOBAL(_restgpr_29_x)

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_GLOBAL(_rest32gpr_29_x)

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	lwz	29,-12(11)

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_GLOBAL(_restgpr_30_x)

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_GLOBAL(_rest32gpr_30_x)

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	lwz	30,-8(11)

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_GLOBAL(_restgpr_31_x)

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_GLOBAL(_rest32gpr_31_x)

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	lwz	0,4(11)

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	lwz	31,-4(11)

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	mtlr	0

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	mr	1,11

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	blr

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#else /* CONFIG_PPC64 */

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.globl	_savegpr0_14

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_savegpr0_14:

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	std	r14,-144(r1)

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.globl	_savegpr0_15

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_savegpr0_15:

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	std	r15,-136(r1)

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.globl	_savegpr0_16

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_savegpr0_16:

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	std	r16,-128(r1)

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.globl	_savegpr0_17

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_savegpr0_17:

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	std	r17,-120(r1)

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.globl	_savegpr0_18

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_savegpr0_18:

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	std	r18,-112(r1)

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.globl	_savegpr0_19

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_savegpr0_19:

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	std	r19,-104(r1)

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.globl	_savegpr0_20

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_savegpr0_20:

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	std	r20,-96(r1)

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.globl	_savegpr0_21

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_savegpr0_21:

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	std	r21,-88(r1)

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.globl	_savegpr0_22

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_savegpr0_22:

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	std	r22,-80(r1)

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.globl	_savegpr0_23

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_savegpr0_23:

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	std	r23,-72(r1)

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.globl	_savegpr0_24

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_savegpr0_24:

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	std	r24,-64(r1)

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.globl	_savegpr0_25

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_savegpr0_25:

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	std	r25,-56(r1)

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.globl	_savegpr0_26

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_savegpr0_26:

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	std	r26,-48(r1)

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.globl	_savegpr0_27

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_savegpr0_27:

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	std	r27,-40(r1)

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.globl	_savegpr0_28

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_savegpr0_28:

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	std	r28,-32(r1)

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.globl	_savegpr0_29

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_savegpr0_29:

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	std	r29,-24(r1)

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.globl	_savegpr0_30

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_savegpr0_30:

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	std	r30,-16(r1)

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.globl	_savegpr0_31

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_savegpr0_31:

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	std	r31,-8(r1)

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	std	r0,16(r1)

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	blr

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.globl	_restgpr0_14

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_restgpr0_14:

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	ld	r14,-144(r1)

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.globl	_restgpr0_15

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_restgpr0_15:

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	ld	r15,-136(r1)

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.globl	_restgpr0_16

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_restgpr0_16:

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	ld	r16,-128(r1)

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.globl	_restgpr0_17

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_restgpr0_17:

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	ld	r17,-120(r1)

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.globl	_restgpr0_18

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_restgpr0_18:

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	ld	r18,-112(r1)

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.globl	_restgpr0_19

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_restgpr0_19:

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	ld	r19,-104(r1)

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.globl	_restgpr0_20

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_restgpr0_20:

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	ld	r20,-96(r1)

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.globl	_restgpr0_21

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_restgpr0_21:

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	ld	r21,-88(r1)

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.globl	_restgpr0_22

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_restgpr0_22:

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	ld	r22,-80(r1)

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.globl	_restgpr0_23

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_restgpr0_23:

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	ld	r23,-72(r1)

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.globl	_restgpr0_24

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_restgpr0_24:

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	ld	r24,-64(r1)

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.globl	_restgpr0_25

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_restgpr0_25:

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	ld	r25,-56(r1)

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.globl	_restgpr0_26

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_restgpr0_26:

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	ld	r26,-48(r1)

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.globl	_restgpr0_27

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_restgpr0_27:

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	ld	r27,-40(r1)

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.globl	_restgpr0_28

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_restgpr0_28:

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	ld	r28,-32(r1)

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.globl	_restgpr0_29

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_restgpr0_29:

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	ld	r0,16(r1)

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	ld	r29,-24(r1)

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	mtlr	r0

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	ld	r30,-16(r1)

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	ld	r31,-8(r1)

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	blr

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.globl	_restgpr0_30

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_restgpr0_30:

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	ld	r30,-16(r1)

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.globl	_restgpr0_31

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_restgpr0_31:

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	ld	r0,16(r1)

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	ld	r31,-8(r1)

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	mtlr	r0

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	blr

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#endif /* CONFIG_PPC64 */

357


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#endif

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