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/* Support functions for the unwinder.
   Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009  Free Software Foundation, Inc.
   Contributed by Paul Brook
 
   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 3, or (at your option) any
   later version.
 
   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.
 
   Under Section 7 of GPL version 3, you are granted additional
   permissions described in the GCC Runtime Library Exception, version
   3.1, as published by the Free Software Foundation.
 
   You should have received a copy of the GNU General Public License and
   a copy of the GCC Runtime Library Exception along with this program;
   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
   .  */
 
/* An executable stack is *not* required for these functions.  */
#if defined(__ELF__) && defined(__linux__)
.section .note.GNU-stack,"",%progbits
.previous
#endif
 
#ifndef __symbian__
 
#include "lib1funcs.asm"
 
.macro UNPREFIX name
        .global SYM (\name)
        EQUIV SYM (\name), SYM (__\name)
.endm
 
#if (__ARM_ARCH__ == 4)
/* Some coprocessors require armv5.  We know this code will never be run on
   other cpus.  Tell gas to allow armv5, but only mark the objects as armv4.
 */
.arch armv5t
#ifdef __ARM_ARCH_4T__
.object_arch armv4t
#else
.object_arch armv4
#endif
#endif
 
#ifdef __ARM_ARCH_6M__
 
/* r0 points to a 16-word block.  Upload these values to the actual core
   state.  */
FUNC_START restore_core_regs
        mov r1, r0
        add r1, r1, #52
        ldmia r1!, {r3, r4, r5}
        sub r3, r3, #4
        mov ip, r3
        str r5, [r3]
        mov lr, r4
        /* Restore r8-r11.  */
        mov r1, r0
        add r1, r1, #32
        ldmia r1!, {r2, r3, r4, r5}
        mov r8, r2
        mov r9, r3
        mov sl, r4
        mov fp, r5
        mov r1, r0
        add r1, r1, #8
        ldmia r1!, {r2, r3, r4, r5, r6, r7}
        ldr r1, [r0, #4]
        ldr r0, [r0]
        mov sp, ip
        pop {pc}
        FUNC_END restore_core_regs
        UNPREFIX restore_core_regs
 
/* ARMV6M does not have coprocessors, so these should never be used.  */
FUNC_START gnu_Unwind_Restore_VFP
        RET
 
/* Store VFR regsters d0-d15 to the address in r0.  */
FUNC_START gnu_Unwind_Save_VFP
        RET
 
/* Load VFP registers d0-d15 from the address in r0.
   Use this to load from FSTMD format.  */
FUNC_START gnu_Unwind_Restore_VFP_D
        RET
 
/* Store VFP registers d0-d15 to the address in r0.
   Use this to store in FLDMD format.  */
FUNC_START gnu_Unwind_Save_VFP_D
        RET
 
/* Load VFP registers d16-d31 from the address in r0.
   Use this to load from FSTMD (=VSTM) format.  Needs VFPv3.  */
FUNC_START gnu_Unwind_Restore_VFP_D_16_to_31
        RET
 
/* Store VFP registers d16-d31 to the address in r0.
   Use this to store in FLDMD (=VLDM) format.  Needs VFPv3.  */
FUNC_START gnu_Unwind_Save_VFP_D_16_to_31
        RET
 
FUNC_START gnu_Unwind_Restore_WMMXD
        RET
 
FUNC_START gnu_Unwind_Save_WMMXD
        RET
 
FUNC_START gnu_Unwind_Restore_WMMXC
        RET
 
FUNC_START gnu_Unwind_Save_WMMXC
        RET
 
.macro  UNWIND_WRAPPER name nargs
        FUNC_START \name
        /* Create a phase2_vrs structure.  */
        /* Save r0 in the PC slot so we can use it as a scratch register.  */
        push {r0}
        add r0, sp, #4
        push {r0, lr} /* Push original SP and LR.  */
        /* Make space for r8-r12.  */
        sub sp, sp, #20
        /* Save low registers.  */
        push {r0, r1, r2, r3, r4, r5, r6, r7}
        /* Save high registers.  */
        add r0, sp, #32
        mov r1, r8
        mov r2, r9
        mov r3, sl
        mov r4, fp
        mov r5, ip
        stmia r0!, {r1, r2, r3, r4, r5}
        /* Restore original low register values.  */
        add r0, sp, #4
        ldmia r0!, {r1, r2, r3, r4, r5}
        /* Restore orginial r0.  */
        ldr r0, [sp, #60]
        str r0, [sp]
        /* Demand-save flags, plus an extra word for alignment.  */
        mov r3, #0
        push {r2, r3}
        /* Point r1 at the block.  Pass r[0..nargs) unchanged.  */
        add r\nargs, sp, #4
 
        bl SYM (__gnu\name)
 
        ldr r3, [sp, #64]
        add sp, sp, #72
        bx r3
 
        FUNC_END \name
        UNPREFIX \name
.endm
 
#else /* !__ARM_ARCH_6M__ */
 
/* r0 points to a 16-word block.  Upload these values to the actual core
   state.  */
ARM_FUNC_START restore_core_regs
        /* We must use sp as the base register when restoring sp.  Push the
           last 3 registers onto the top of the current stack to achieve
           this.  */
        add r1, r0, #52
        ldmia r1, {r3, r4, r5}  /* {sp, lr, pc}.  */
#if defined(__thumb2__)
        /* Thumb-2 doesn't allow sp in a load-multiple instruction, so push
           the target address onto the target stack.  This is safe as
           we're always returning to somewhere further up the call stack.  */
        mov ip, r3
        mov lr, r4
        str r5, [ip, #-4]!
#elif defined(__INTERWORKING__)
        /* Restore pc into ip.  */
        mov r2, r5
        stmfd sp!, {r2, r3, r4}
#else
        stmfd sp!, {r3, r4, r5}
#endif
        /* Don't bother restoring ip.  */
        ldmia r0, {r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, sl, fp}
#if defined(__thumb2__)
        /* Pop the return address off the target stack.  */
        mov sp, ip
        pop {pc}
#elif defined(__INTERWORKING__)
        /* Pop the three registers we pushed earlier.  */
        ldmfd sp, {ip, sp, lr}
        bx ip
#else
        ldmfd sp, {sp, lr, pc}
#endif
        FUNC_END restore_core_regs
        UNPREFIX restore_core_regs
 
/* Load VFP registers d0-d15 from the address in r0.
   Use this to load from FSTMX format.  */
ARM_FUNC_START gnu_Unwind_Restore_VFP
        /* Use the generic coprocessor form so that gas doesn't complain
           on soft-float targets.  */
        ldc   p11,cr0,[r0],{0x21} /* fldmiax r0, {d0-d15} */
        RET
 
/* Store VFP registers d0-d15 to the address in r0.
   Use this to store in FSTMX format.  */
ARM_FUNC_START gnu_Unwind_Save_VFP
        /* Use the generic coprocessor form so that gas doesn't complain
           on soft-float targets.  */
        stc   p11,cr0,[r0],{0x21} /* fstmiax r0, {d0-d15} */
        RET
 
/* Load VFP registers d0-d15 from the address in r0.
   Use this to load from FSTMD format.  */
ARM_FUNC_START gnu_Unwind_Restore_VFP_D
        ldc   p11,cr0,[r0],{0x20} /* fldmiad r0, {d0-d15} */
        RET
 
/* Store VFP registers d0-d15 to the address in r0.
   Use this to store in FLDMD format.  */
ARM_FUNC_START gnu_Unwind_Save_VFP_D
        stc   p11,cr0,[r0],{0x20} /* fstmiad r0, {d0-d15} */
        RET
 
/* Load VFP registers d16-d31 from the address in r0.
   Use this to load from FSTMD (=VSTM) format.  Needs VFPv3.  */
ARM_FUNC_START gnu_Unwind_Restore_VFP_D_16_to_31
        ldcl  p11,cr0,[r0],{0x20} /* vldm r0, {d16-d31} */
        RET
 
/* Store VFP registers d16-d31 to the address in r0.
   Use this to store in FLDMD (=VLDM) format.  Needs VFPv3.  */
ARM_FUNC_START gnu_Unwind_Save_VFP_D_16_to_31
        stcl  p11,cr0,[r0],{0x20} /* vstm r0, {d16-d31} */
        RET
 
ARM_FUNC_START gnu_Unwind_Restore_WMMXD
        /* Use the generic coprocessor form so that gas doesn't complain
           on non-iWMMXt targets.  */
        ldcl  p1, cr0, [r0], #8 /* wldrd wr0, [r0], #8 */
        ldcl  p1, cr1, [r0], #8 /* wldrd wr1, [r0], #8 */
        ldcl  p1, cr2, [r0], #8 /* wldrd wr2, [r0], #8 */
        ldcl  p1, cr3, [r0], #8 /* wldrd wr3, [r0], #8 */
        ldcl  p1, cr4, [r0], #8 /* wldrd wr4, [r0], #8 */
        ldcl  p1, cr5, [r0], #8 /* wldrd wr5, [r0], #8 */
        ldcl  p1, cr6, [r0], #8 /* wldrd wr6, [r0], #8 */
        ldcl  p1, cr7, [r0], #8 /* wldrd wr7, [r0], #8 */
        ldcl  p1, cr8, [r0], #8 /* wldrd wr8, [r0], #8 */
        ldcl  p1, cr9, [r0], #8 /* wldrd wr9, [r0], #8 */
        ldcl  p1, cr10, [r0], #8 /* wldrd wr10, [r0], #8 */
        ldcl  p1, cr11, [r0], #8 /* wldrd wr11, [r0], #8 */
        ldcl  p1, cr12, [r0], #8 /* wldrd wr12, [r0], #8 */
        ldcl  p1, cr13, [r0], #8 /* wldrd wr13, [r0], #8 */
        ldcl  p1, cr14, [r0], #8 /* wldrd wr14, [r0], #8 */
        ldcl  p1, cr15, [r0], #8 /* wldrd wr15, [r0], #8 */
        RET
 
ARM_FUNC_START gnu_Unwind_Save_WMMXD
        /* Use the generic coprocessor form so that gas doesn't complain
           on non-iWMMXt targets.  */
        stcl  p1, cr0, [r0], #8 /* wstrd wr0, [r0], #8 */
        stcl  p1, cr1, [r0], #8 /* wstrd wr1, [r0], #8 */
        stcl  p1, cr2, [r0], #8 /* wstrd wr2, [r0], #8 */
        stcl  p1, cr3, [r0], #8 /* wstrd wr3, [r0], #8 */
        stcl  p1, cr4, [r0], #8 /* wstrd wr4, [r0], #8 */
        stcl  p1, cr5, [r0], #8 /* wstrd wr5, [r0], #8 */
        stcl  p1, cr6, [r0], #8 /* wstrd wr6, [r0], #8 */
        stcl  p1, cr7, [r0], #8 /* wstrd wr7, [r0], #8 */
        stcl  p1, cr8, [r0], #8 /* wstrd wr8, [r0], #8 */
        stcl  p1, cr9, [r0], #8 /* wstrd wr9, [r0], #8 */
        stcl  p1, cr10, [r0], #8 /* wstrd wr10, [r0], #8 */
        stcl  p1, cr11, [r0], #8 /* wstrd wr11, [r0], #8 */
        stcl  p1, cr12, [r0], #8 /* wstrd wr12, [r0], #8 */
        stcl  p1, cr13, [r0], #8 /* wstrd wr13, [r0], #8 */
        stcl  p1, cr14, [r0], #8 /* wstrd wr14, [r0], #8 */
        stcl  p1, cr15, [r0], #8 /* wstrd wr15, [r0], #8 */
        RET
 
ARM_FUNC_START gnu_Unwind_Restore_WMMXC
        /* Use the generic coprocessor form so that gas doesn't complain
           on non-iWMMXt targets.  */
        ldc2  p1, cr8, [r0], #4 /* wldrw wcgr0, [r0], #4 */
        ldc2  p1, cr9, [r0], #4 /* wldrw wcgr1, [r0], #4 */
        ldc2  p1, cr10, [r0], #4 /* wldrw wcgr2, [r0], #4 */
        ldc2  p1, cr11, [r0], #4 /* wldrw wcgr3, [r0], #4 */
        RET
 
ARM_FUNC_START gnu_Unwind_Save_WMMXC
        /* Use the generic coprocessor form so that gas doesn't complain
           on non-iWMMXt targets.  */
        stc2  p1, cr8, [r0], #4 /* wstrw wcgr0, [r0], #4 */
        stc2  p1, cr9, [r0], #4 /* wstrw wcgr1, [r0], #4 */
        stc2  p1, cr10, [r0], #4 /* wstrw wcgr2, [r0], #4 */
        stc2  p1, cr11, [r0], #4 /* wstrw wcgr3, [r0], #4 */
        RET
 
/* Wrappers to save core registers, then call the real routine.   */
 
.macro  UNWIND_WRAPPER name nargs
        ARM_FUNC_START \name
        /* Create a phase2_vrs structure.  */
        /* Split reg push in two to ensure the correct value for sp.  */
#if defined(__thumb2__)
        mov ip, sp
        push {lr} /* PC is ignored.  */
        push {ip, lr} /* Push original SP and LR.  */
#else
        stmfd sp!, {sp, lr, pc}
#endif
        stmfd sp!, {r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, sl, fp, ip}
 
        /* Demand-save flags, plus an extra word for alignment.  */
        mov r3, #0
        stmfd sp!, {r2, r3}
 
        /* Point r1 at the block.  Pass r[0..nargs) unchanged.  */
        add r\nargs, sp, #4
#if defined(__thumb__) && !defined(__thumb2__)
        /* Switch back to thumb mode to avoid interworking hassle.  */
        adr ip, .L1_\name
        orr ip, ip, #1
        bx ip
        .thumb
.L1_\name:
        bl SYM (__gnu\name) __PLT__
        ldr r3, [sp, #64]
        add sp, #72
        bx r3
#else
        bl SYM (__gnu\name) __PLT__
        ldr lr, [sp, #64]
        add sp, sp, #72
        RET
#endif
        FUNC_END \name
        UNPREFIX \name
.endm
 
#endif /* !__ARM_ARCH_6M__ */
 
UNWIND_WRAPPER _Unwind_RaiseException 1
UNWIND_WRAPPER _Unwind_Resume 1
UNWIND_WRAPPER _Unwind_Resume_or_Rethrow 1
UNWIND_WRAPPER _Unwind_ForcedUnwind 3
UNWIND_WRAPPER _Unwind_Backtrace 2
 
#endif  /* ndef __symbian__ */

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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [arm/] [libunwind.S] - Blame information for rev 282

Line No.	Rev	Author	Line
1	282	jeremybenn	`/* Support functions for the unwinder.`
2			`Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc.`
3			`Contributed by Paul Brook`
4
5			`This file is free software; you can redistribute it and/or modify it`
6			`under the terms of the GNU General Public License as published by the`
7			`Free Software Foundation; either version 3, or (at your option) any`
8			`later version.`
9
10			`This file is distributed in the hope that it will be useful, but`
11			`WITHOUT ANY WARRANTY; without even the implied warranty of`
12			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU`
13			`General Public License for more details.`
14
15			`Under Section 7 of GPL version 3, you are granted additional`
16			`permissions described in the GCC Runtime Library Exception, version`
17			`3.1, as published by the Free Software Foundation.`
18
19			`You should have received a copy of the GNU General Public License and`
20			`a copy of the GCC Runtime Library Exception along with this program;`
21			`see the files COPYING3 and COPYING.RUNTIME respectively. If not, see`
22			`. */`
23
24			`/* An executable stack is not required for these functions. */`
25			`#if defined(__ELF__) && defined(__linux__)`
26			`.section .note.GNU-stack,"",%progbits`
27			`.previous`
28			`#endif`
29
30			`#ifndef __symbian__`
31
32			`#include "lib1funcs.asm"`
33
34			`.macro UNPREFIX name`
35			`.global SYM (\name)`
36			`EQUIV SYM (\name), SYM (__\name)`
37			`.endm`
38
39			`#if (__ARM_ARCH__ == 4)`
40			`/* Some coprocessors require armv5. We know this code will never be run on`
41			`other cpus. Tell gas to allow armv5, but only mark the objects as armv4.`
42			`*/`
43			`.arch armv5t`
44			`#ifdef __ARM_ARCH_4T__`
45			`.object_arch armv4t`
46			`#else`
47			`.object_arch armv4`
48			`#endif`
49			`#endif`
50
51			`#ifdef __ARM_ARCH_6M__`
52
53			`/* r0 points to a 16-word block. Upload these values to the actual core`
54			`state. */`
55			`FUNC_START restore_core_regs`
56			`mov r1, r0`
57			`add r1, r1, #52`
58			`ldmia r1!, {r3, r4, r5}`
59			`sub r3, r3, #4`
60			`mov ip, r3`
61			`str r5, [r3]`
62			`mov lr, r4`
63			`/* Restore r8-r11. */`
64			`mov r1, r0`
65			`add r1, r1, #32`
66			`ldmia r1!, {r2, r3, r4, r5}`
67			`mov r8, r2`
68			`mov r9, r3`
69			`mov sl, r4`
70			`mov fp, r5`
71			`mov r1, r0`
72			`add r1, r1, #8`
73			`ldmia r1!, {r2, r3, r4, r5, r6, r7}`
74			`ldr r1, [r0, #4]`
75			`ldr r0, [r0]`
76			`mov sp, ip`
77			`pop {pc}`
78			`FUNC_END restore_core_regs`
79			`UNPREFIX restore_core_regs`
80
81			`/* ARMV6M does not have coprocessors, so these should never be used. */`
82			`FUNC_START gnu_Unwind_Restore_VFP`
83			`RET`
84
85			`/* Store VFR regsters d0-d15 to the address in r0. */`
86			`FUNC_START gnu_Unwind_Save_VFP`
87			`RET`
88
89			`/* Load VFP registers d0-d15 from the address in r0.`
90			`Use this to load from FSTMD format. */`
91			`FUNC_START gnu_Unwind_Restore_VFP_D`
92			`RET`
93
94			`/* Store VFP registers d0-d15 to the address in r0.`
95			`Use this to store in FLDMD format. */`
96			`FUNC_START gnu_Unwind_Save_VFP_D`
97			`RET`
98
99			`/* Load VFP registers d16-d31 from the address in r0.`
100			`Use this to load from FSTMD (=VSTM) format. Needs VFPv3. */`
101			`FUNC_START gnu_Unwind_Restore_VFP_D_16_to_31`
102			`RET`
103
104			`/* Store VFP registers d16-d31 to the address in r0.`
105			`Use this to store in FLDMD (=VLDM) format. Needs VFPv3. */`
106			`FUNC_START gnu_Unwind_Save_VFP_D_16_to_31`
107			`RET`
108
109			`FUNC_START gnu_Unwind_Restore_WMMXD`
110			`RET`
111
112			`FUNC_START gnu_Unwind_Save_WMMXD`
113			`RET`
114
115			`FUNC_START gnu_Unwind_Restore_WMMXC`
116			`RET`
117
118			`FUNC_START gnu_Unwind_Save_WMMXC`
119			`RET`
120
121			`.macro UNWIND_WRAPPER name nargs`
122			`FUNC_START \name`
123			`/* Create a phase2_vrs structure. */`
124			`/* Save r0 in the PC slot so we can use it as a scratch register. */`
125			`push {r0}`
126			`add r0, sp, #4`
127			`push {r0, lr} /* Push original SP and LR. */`
128			`/* Make space for r8-r12. */`
129			`sub sp, sp, #20`
130			`/* Save low registers. */`
131			`push {r0, r1, r2, r3, r4, r5, r6, r7}`
132			`/* Save high registers. */`
133			`add r0, sp, #32`
134			`mov r1, r8`
135			`mov r2, r9`
136			`mov r3, sl`
137			`mov r4, fp`
138			`mov r5, ip`
139			`stmia r0!, {r1, r2, r3, r4, r5}`
140			`/* Restore original low register values. */`
141			`add r0, sp, #4`
142			`ldmia r0!, {r1, r2, r3, r4, r5}`
143			`/* Restore orginial r0. */`
144			`ldr r0, [sp, #60]`
145			`str r0, [sp]`
146			`/* Demand-save flags, plus an extra word for alignment. */`
147			`mov r3, #0`
148			`push {r2, r3}`
149			`/* Point r1 at the block. Pass r[0..nargs) unchanged. */`
150			`add r\nargs, sp, #4`
151
152			`bl SYM (__gnu\name)`
153
154			`ldr r3, [sp, #64]`
155			`add sp, sp, #72`
156			`bx r3`
157
158			`FUNC_END \name`
159			`UNPREFIX \name`
160			`.endm`
161
162			`#else /* !__ARM_ARCH_6M__ */`
163
164			`/* r0 points to a 16-word block. Upload these values to the actual core`
165			`state. */`
166			`ARM_FUNC_START restore_core_regs`
167			`/* We must use sp as the base register when restoring sp. Push the`
168			`last 3 registers onto the top of the current stack to achieve`
169			`this. */`
170			`add r1, r0, #52`
171			`ldmia r1, {r3, r4, r5} /* {sp, lr, pc}. */`
172			`#if defined(__thumb2__)`
173			`/* Thumb-2 doesn't allow sp in a load-multiple instruction, so push`
174			`the target address onto the target stack. This is safe as`
175			`we're always returning to somewhere further up the call stack. */`
176			`mov ip, r3`
177			`mov lr, r4`
178			`str r5, [ip, #-4]!`
179			`#elif defined(__INTERWORKING__)`
180			`/* Restore pc into ip. */`
181			`mov r2, r5`
182			`stmfd sp!, {r2, r3, r4}`
183			`#else`
184			`stmfd sp!, {r3, r4, r5}`
185			`#endif`
186			`/* Don't bother restoring ip. */`
187			`ldmia r0, {r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, sl, fp}`
188			`#if defined(__thumb2__)`
189			`/* Pop the return address off the target stack. */`
190			`mov sp, ip`
191			`pop {pc}`
192			`#elif defined(__INTERWORKING__)`
193			`/* Pop the three registers we pushed earlier. */`
194			`ldmfd sp, {ip, sp, lr}`
195			`bx ip`
196			`#else`
197			`ldmfd sp, {sp, lr, pc}`
198			`#endif`
199			`FUNC_END restore_core_regs`
200			`UNPREFIX restore_core_regs`
201
202			`/* Load VFP registers d0-d15 from the address in r0.`
203			`Use this to load from FSTMX format. */`
204			`ARM_FUNC_START gnu_Unwind_Restore_VFP`
205			`/* Use the generic coprocessor form so that gas doesn't complain`
206			`on soft-float targets. */`
207			`ldc p11,cr0,[r0],{0x21} /* fldmiax r0, {d0-d15} */`
208			`RET`
209
210			`/* Store VFP registers d0-d15 to the address in r0.`
211			`Use this to store in FSTMX format. */`
212			`ARM_FUNC_START gnu_Unwind_Save_VFP`
213			`/* Use the generic coprocessor form so that gas doesn't complain`
214			`on soft-float targets. */`
215			`stc p11,cr0,[r0],{0x21} /* fstmiax r0, {d0-d15} */`
216			`RET`
217
218			`/* Load VFP registers d0-d15 from the address in r0.`
219			`Use this to load from FSTMD format. */`
220			`ARM_FUNC_START gnu_Unwind_Restore_VFP_D`
221			`ldc p11,cr0,[r0],{0x20} /* fldmiad r0, {d0-d15} */`
222			`RET`
223
224			`/* Store VFP registers d0-d15 to the address in r0.`
225			`Use this to store in FLDMD format. */`
226			`ARM_FUNC_START gnu_Unwind_Save_VFP_D`
227			`stc p11,cr0,[r0],{0x20} /* fstmiad r0, {d0-d15} */`
228			`RET`
229
230			`/* Load VFP registers d16-d31 from the address in r0.`
231			`Use this to load from FSTMD (=VSTM) format. Needs VFPv3. */`
232			`ARM_FUNC_START gnu_Unwind_Restore_VFP_D_16_to_31`
233			`ldcl p11,cr0,[r0],{0x20} /* vldm r0, {d16-d31} */`
234			`RET`
235
236			`/* Store VFP registers d16-d31 to the address in r0.`
237			`Use this to store in FLDMD (=VLDM) format. Needs VFPv3. */`
238			`ARM_FUNC_START gnu_Unwind_Save_VFP_D_16_to_31`
239			`stcl p11,cr0,[r0],{0x20} /* vstm r0, {d16-d31} */`
240			`RET`
241
242			`ARM_FUNC_START gnu_Unwind_Restore_WMMXD`
243			`/* Use the generic coprocessor form so that gas doesn't complain`
244			`on non-iWMMXt targets. */`
245			`ldcl p1, cr0, [r0], #8 /* wldrd wr0, [r0], #8 */`
246			`ldcl p1, cr1, [r0], #8 /* wldrd wr1, [r0], #8 */`
247			`ldcl p1, cr2, [r0], #8 /* wldrd wr2, [r0], #8 */`
248			`ldcl p1, cr3, [r0], #8 /* wldrd wr3, [r0], #8 */`
249			`ldcl p1, cr4, [r0], #8 /* wldrd wr4, [r0], #8 */`
250			`ldcl p1, cr5, [r0], #8 /* wldrd wr5, [r0], #8 */`
251			`ldcl p1, cr6, [r0], #8 /* wldrd wr6, [r0], #8 */`
252			`ldcl p1, cr7, [r0], #8 /* wldrd wr7, [r0], #8 */`
253			`ldcl p1, cr8, [r0], #8 /* wldrd wr8, [r0], #8 */`
254			`ldcl p1, cr9, [r0], #8 /* wldrd wr9, [r0], #8 */`
255			`ldcl p1, cr10, [r0], #8 /* wldrd wr10, [r0], #8 */`
256			`ldcl p1, cr11, [r0], #8 /* wldrd wr11, [r0], #8 */`
257			`ldcl p1, cr12, [r0], #8 /* wldrd wr12, [r0], #8 */`
258			`ldcl p1, cr13, [r0], #8 /* wldrd wr13, [r0], #8 */`
259			`ldcl p1, cr14, [r0], #8 /* wldrd wr14, [r0], #8 */`
260			`ldcl p1, cr15, [r0], #8 /* wldrd wr15, [r0], #8 */`
261			`RET`
262
263			`ARM_FUNC_START gnu_Unwind_Save_WMMXD`
264			`/* Use the generic coprocessor form so that gas doesn't complain`
265			`on non-iWMMXt targets. */`
266			`stcl p1, cr0, [r0], #8 /* wstrd wr0, [r0], #8 */`
267			`stcl p1, cr1, [r0], #8 /* wstrd wr1, [r0], #8 */`
268			`stcl p1, cr2, [r0], #8 /* wstrd wr2, [r0], #8 */`
269			`stcl p1, cr3, [r0], #8 /* wstrd wr3, [r0], #8 */`
270			`stcl p1, cr4, [r0], #8 /* wstrd wr4, [r0], #8 */`
271			`stcl p1, cr5, [r0], #8 /* wstrd wr5, [r0], #8 */`
272			`stcl p1, cr6, [r0], #8 /* wstrd wr6, [r0], #8 */`
273			`stcl p1, cr7, [r0], #8 /* wstrd wr7, [r0], #8 */`
274			`stcl p1, cr8, [r0], #8 /* wstrd wr8, [r0], #8 */`
275			`stcl p1, cr9, [r0], #8 /* wstrd wr9, [r0], #8 */`
276			`stcl p1, cr10, [r0], #8 /* wstrd wr10, [r0], #8 */`
277			`stcl p1, cr11, [r0], #8 /* wstrd wr11, [r0], #8 */`
278			`stcl p1, cr12, [r0], #8 /* wstrd wr12, [r0], #8 */`
279			`stcl p1, cr13, [r0], #8 /* wstrd wr13, [r0], #8 */`
280			`stcl p1, cr14, [r0], #8 /* wstrd wr14, [r0], #8 */`
281			`stcl p1, cr15, [r0], #8 /* wstrd wr15, [r0], #8 */`
282			`RET`
283
284			`ARM_FUNC_START gnu_Unwind_Restore_WMMXC`
285			`/* Use the generic coprocessor form so that gas doesn't complain`
286			`on non-iWMMXt targets. */`
287			`ldc2 p1, cr8, [r0], #4 /* wldrw wcgr0, [r0], #4 */`
288			`ldc2 p1, cr9, [r0], #4 /* wldrw wcgr1, [r0], #4 */`
289			`ldc2 p1, cr10, [r0], #4 /* wldrw wcgr2, [r0], #4 */`
290			`ldc2 p1, cr11, [r0], #4 /* wldrw wcgr3, [r0], #4 */`
291			`RET`
292
293			`ARM_FUNC_START gnu_Unwind_Save_WMMXC`
294			`/* Use the generic coprocessor form so that gas doesn't complain`
295			`on non-iWMMXt targets. */`
296			`stc2 p1, cr8, [r0], #4 /* wstrw wcgr0, [r0], #4 */`
297			`stc2 p1, cr9, [r0], #4 /* wstrw wcgr1, [r0], #4 */`
298			`stc2 p1, cr10, [r0], #4 /* wstrw wcgr2, [r0], #4 */`
299			`stc2 p1, cr11, [r0], #4 /* wstrw wcgr3, [r0], #4 */`
300			`RET`
301
302			`/* Wrappers to save core registers, then call the real routine. */`
303
304			`.macro UNWIND_WRAPPER name nargs`
305			`ARM_FUNC_START \name`
306			`/* Create a phase2_vrs structure. */`
307			`/* Split reg push in two to ensure the correct value for sp. */`
308			`#if defined(__thumb2__)`
309			`mov ip, sp`
310			`push {lr} /* PC is ignored. */`
311			`push {ip, lr} /* Push original SP and LR. */`
312			`#else`
313			`stmfd sp!, {sp, lr, pc}`
314			`#endif`
315			`stmfd sp!, {r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, sl, fp, ip}`
316
317			`/* Demand-save flags, plus an extra word for alignment. */`
318			`mov r3, #0`
319			`stmfd sp!, {r2, r3}`
320
321			`/* Point r1 at the block. Pass r[0..nargs) unchanged. */`
322			`add r\nargs, sp, #4`
323			`#if defined(__thumb__) && !defined(__thumb2__)`
324			`/* Switch back to thumb mode to avoid interworking hassle. */`
325			`adr ip, .L1_\name`
326			`orr ip, ip, #1`
327			`bx ip`
328			`.thumb`
329			`.L1_\name:`
330			`bl SYM (__gnu\name) __PLT__`
331			`ldr r3, [sp, #64]`
332			`add sp, #72`
333			`bx r3`
334			`#else`
335			`bl SYM (__gnu\name) __PLT__`
336			`ldr lr, [sp, #64]`
337			`add sp, sp, #72`
338			`RET`
339			`#endif`
340			`FUNC_END \name`
341			`UNPREFIX \name`
342			`.endm`
343
344			`#endif /* !__ARM_ARCH_6M__ */`
345
346			`UNWIND_WRAPPER _Unwind_RaiseException 1`
347			`UNWIND_WRAPPER _Unwind_Resume 1`
348			`UNWIND_WRAPPER _Unwind_Resume_or_Rethrow 1`
349			`UNWIND_WRAPPER _Unwind_ForcedUnwind 3`
350			`UNWIND_WRAPPER _Unwind_Backtrace 2`
351
352			`#endif /* ndef __symbian__ */`