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-rw-r--r--purgatory/arch/ppc64/misc.S197
1 files changed, 197 insertions, 0 deletions
diff --git a/purgatory/arch/ppc64/misc.S b/purgatory/arch/ppc64/misc.S
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+/*
+ * This is from linux/arch/powerpc/lib/crtsavres.S:
+ *
+ * Special support for eabi and SVR4
+ *
+ * Copyright (C) 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc.
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ * Written By Michael Meissner
+ *
+ * Based on gcc/config/rs6000/crtsavres.asm from gcc
+ * 64 bit additions from reading the PPC elf64abi document.
+ *
+ * This file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * In addition to the permissions in the GNU General Public License, the
+ * Free Software Foundation gives you unlimited permission to link the
+ * compiled version of this file with other programs, and to distribute
+ * those programs without any restriction coming from the use of this
+ * file. (The General Public License restrictions do apply in other
+ * respects; for example, they cover modification of the file, and
+ * distribution when not linked into another program.)
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * As a special exception, if you link this library with files
+ * compiled with GCC to produce an executable, this does not cause
+ * the resulting executable to be covered by the GNU General Public License.
+ * This exception does not however invalidate any other reasons why
+ * the executable file might be covered by the GNU General Public License.
+ */
+
+#define r0 0
+#define r1 1
+#define r2 2
+#define r3 3
+#define r4 4
+#define r5 5
+#define r6 6
+#define r7 7
+#define r8 8
+#define r9 9
+#define r10 10
+#define r11 11
+#define r12 12
+#define r13 13
+#define r14 14
+#define r15 15
+#define r16 16
+#define r17 17
+#define r18 18
+#define r19 19
+#define r20 20
+#define r21 21
+#define r22 22
+#define r23 23
+#define r24 24
+#define r25 25
+#define r26 26
+#define r27 27
+#define r28 28
+#define r29 29
+#define r30 30
+#define r31 31
+
+ .text
+
+.globl _savegpr0_14
+_savegpr0_14:
+ std r14,-144(r1)
+.globl _savegpr0_15
+_savegpr0_15:
+ std r15,-136(r1)
+.globl _savegpr0_16
+_savegpr0_16:
+ std r16,-128(r1)
+.globl _savegpr0_17
+_savegpr0_17:
+ std r17,-120(r1)
+.globl _savegpr0_18
+_savegpr0_18:
+ std r18,-112(r1)
+.globl _savegpr0_19
+_savegpr0_19:
+ std r19,-104(r1)
+.globl _savegpr0_20
+_savegpr0_20:
+ std r20,-96(r1)
+.globl _savegpr0_21
+_savegpr0_21:
+ std r21,-88(r1)
+.globl _savegpr0_22
+_savegpr0_22:
+ std r22,-80(r1)
+.globl _savegpr0_23
+_savegpr0_23:
+ std r23,-72(r1)
+.globl _savegpr0_24
+_savegpr0_24:
+ std r24,-64(r1)
+.globl _savegpr0_25
+_savegpr0_25:
+ std r25,-56(r1)
+.globl _savegpr0_26
+_savegpr0_26:
+ std r26,-48(r1)
+.globl _savegpr0_27
+_savegpr0_27:
+ std r27,-40(r1)
+.globl _savegpr0_28
+_savegpr0_28:
+ std r28,-32(r1)
+.globl _savegpr0_29
+_savegpr0_29:
+ std r29,-24(r1)
+.globl _savegpr0_30
+_savegpr0_30:
+ std r30,-16(r1)
+.globl _savegpr0_31
+_savegpr0_31:
+ std r31,-8(r1)
+ std r0,16(r1)
+ blr
+
+.globl _restgpr0_14
+_restgpr0_14:
+ ld r14,-144(r1)
+.globl _restgpr0_15
+_restgpr0_15:
+ ld r15,-136(r1)
+.globl _restgpr0_16
+_restgpr0_16:
+ ld r16,-128(r1)
+.globl _restgpr0_17
+_restgpr0_17:
+ ld r17,-120(r1)
+.globl _restgpr0_18
+_restgpr0_18:
+ ld r18,-112(r1)
+.globl _restgpr0_19
+_restgpr0_19:
+ ld r19,-104(r1)
+.globl _restgpr0_20
+_restgpr0_20:
+ ld r20,-96(r1)
+.globl _restgpr0_21
+_restgpr0_21:
+ ld r21,-88(r1)
+.globl _restgpr0_22
+_restgpr0_22:
+ ld r22,-80(r1)
+.globl _restgpr0_23
+_restgpr0_23:
+ ld r23,-72(r1)
+.globl _restgpr0_24
+_restgpr0_24:
+ ld r24,-64(r1)
+.globl _restgpr0_25
+_restgpr0_25:
+ ld r25,-56(r1)
+.globl _restgpr0_26
+_restgpr0_26:
+ ld r26,-48(r1)
+.globl _restgpr0_27
+_restgpr0_27:
+ ld r27,-40(r1)
+.globl _restgpr0_28
+_restgpr0_28:
+ ld r28,-32(r1)
+.globl _restgpr0_29
+_restgpr0_29:
+ ld r0,16(r1)
+ ld r29,-24(r1)
+ mtlr r0
+ ld r30,-16(r1)
+ ld r31,-8(r1)
+ blr
+
+.globl _restgpr0_30
+_restgpr0_30:
+ ld r30,-16(r1)
+.globl _restgpr0_31
+_restgpr0_31:
+ ld r0,16(r1)
+ ld r31,-8(r1)
+ mtlr r0
+ blr