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-rw-r--r--sysdeps/powerpc/gprrest0.S90
1 files changed, 50 insertions, 40 deletions
diff --git a/sysdeps/powerpc/gprrest0.S b/sysdeps/powerpc/gprrest0.S
index 3e6b327..d203904 100644
--- a/sysdeps/powerpc/gprrest0.S
+++ b/sysdeps/powerpc/gprrest0.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -16,44 +16,54 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+/*
+ General Purpose Register (GPR) restore routine
+ when Floating Point Registers (FPRs) are not saved
+
+ Note: This restore routine must not be called when GPR30 or
+ GPR31, or both, are the only registers beings saved. In these
+ cases, the saving and restoring must be done inline.
+*/
+
#include <sysdep.h>
- ASM_GLOBAL_DIRECTIVE _restgpr0_13
-_restgpr0_13: lwz r13,-76(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_14
-_restgpr0_14: lwz r14,-72(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_15
-_restgpr0_15: lwz r15,-68(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_16
-_restgpr0_16: lwz r16,-64(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_17
-_restgpr0_17: lwz r17,-60(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_18
-_restgpr0_18: lwz r18,-56(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_19
-_restgpr0_19: lwz r19,-52(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_20
-_restgpr0_20: lwz r20,-48(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_21
-_restgpr0_21: lwz r21,-44(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_22
-_restgpr0_22: lwz r22,-40(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_23
-_restgpr0_23: lwz r23,-36(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_24
-_restgpr0_24: lwz r24,-32(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_25
-_restgpr0_25: lwz r25,-28(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_26
-_restgpr0_26: lwz r26,-24(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_27
-_restgpr0_27: lwz r27,-20(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_28
-_restgpr0_28: lwz r28,-16(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_29
-_restgpr0_29: lwz r29,-12(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_30
-_restgpr0_30: lwz r30,-8(r1)
- ASM_GLOBAL_DIRECTIVE _restgpr0_31
-_restgpr0_31: lwz r31,-4(r1)
- blr
+ENTRY(_restgpr0_all)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_13)
+C_TEXT(_restgpr0_13): lwz r13,-76(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_14)
+C_TEXT(_restgpr0_14): lwz r14,-72(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_15)
+C_TEXT(_restgpr0_15): lwz r15,-68(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_16)
+C_TEXT(_restgpr0_16): lwz r16,-64(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_17)
+C_TEXT(_restgpr0_17): lwz r17,-60(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_18)
+C_TEXT(_restgpr0_18): lwz r18,-56(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_19)
+C_TEXT(_restgpr0_19): lwz r19,-52(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_20)
+C_TEXT(_restgpr0_20): lwz r20,-48(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_21)
+C_TEXT(_restgpr0_21): lwz r21,-44(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_22)
+C_TEXT(_restgpr0_22): lwz r22,-40(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_23)
+C_TEXT(_restgpr0_23): lwz r23,-36(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_24)
+C_TEXT(_restgpr0_24): lwz r24,-32(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_25)
+C_TEXT(_restgpr0_25): lwz r25,-28(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_26)
+C_TEXT(_restgpr0_26): lwz r26,-24(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_27)
+C_TEXT(_restgpr0_27): lwz r27,-20(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_28)
+C_TEXT(_restgpr0_28): lwz r28,-16(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_29)
+C_TEXT(_restgpr0_29): lwz r0,8(r1) #get return address from frame
+ lwz r29,-12(r1) #restore r29
+ mtlr r0 #move return address to LR
+ lwz r30,-8(r1) #restore r30
+ lwz r31,-4(r1) #restore r31
+ blr #return