http://reviews.llvm.org/D7258
Files:
Unwind/CMakeLists.txt
Unwind/UnwindRegistersRestore.S
Unwind/UnwindRegistersRestore_jumpto.S
Unwind/UnwindRegistersRestore_restoreCoreAndJumpTo.S
Unwind/UnwindRegistersRestore_restoreVFPWithFLDMD.S
Unwind/UnwindRegistersRestore_restoreVFPWithFLDMX.S
Unwind/UnwindRegistersRestore_restoreVFPv3.S
Unwind/UnwindRegistersRestore_restoreiWMMX.S
Unwind/UnwindRegistersRestore_restoreiWMMXControl.S
Unwind/UnwindRegistersSave.S
Unwind/UnwindRegistersSave_saveVFPWithFSTMD.S
Unwind/UnwindRegistersSave_saveVFPWithFSTMX.S
Unwind/UnwindRegistersSave_saveVFPv3.S
Unwind/UnwindRegistersSave_saveiWMMX.S
Unwind/UnwindRegistersSave_saveiWMMXControl.S
Unwind/UnwindRegistersSave_unw_getcontext.S
EMAIL PREFERENCES
http://reviews.llvm.org/settings/panel/emailpreferences/
Index: Unwind/CMakeLists.txt
===================================================================
--- Unwind/CMakeLists.txt
+++ Unwind/CMakeLists.txt
@@ -7,11 +7,22 @@
Unwind-sjlj.c
)
-append_if(LIBUNWIND_SOURCES APPLE Unwind_AppleExtras.cpp)
+#append_if(LIBUNWIND_SOURCES APPLE Unwind_AppleExtras.cpp)
set(LIBUNWIND_ASM_SOURCES
- UnwindRegistersRestore.S
- UnwindRegistersSave.S
+ UnwindRegistersRestore_jumpto.S
+ UnwindRegistersRestore_restoreCoreAndJumpTo.S
+ UnwindRegistersRestore_restoreVFPWithFLDMD.S
+ UnwindRegistersRestore_restoreVFPWithFLDMX.S
+ UnwindRegistersRestore_restoreVFPv3.S
+ UnwindRegistersRestore_restoreiWMMX.S
+ UnwindRegistersRestore_restoreiWMMXControl.S
+ UnwindRegistersSave_saveVFPWithFSTMD.S
+ UnwindRegistersSave_saveVFPWithFSTMX.S
+ UnwindRegistersSave_saveVFPv3.S
+ UnwindRegistersSave_saveiWMMXControl.S
+ UnwindRegistersSave_saveiWMMX.S
+ UnwindRegistersSave_unw_getcontext.S
)
set_source_files_properties(${LIBUNWIND_ASM_SOURCES} PROPERTIES LANGUAGE C)
@@ -32,7 +43,7 @@
../../include/unwind.h
)
-append_if(LIBCXXABI_HEADERS APPLE ../../include/mach-o/compact_unwind_encoding.h)
+#append_if(LIBCXXABI_HEADERS APPLE ../../include/mach-o/compact_unwind_encoding.h)
if (MSVC_IDE)
# Force them all into the headers dir on MSVC, otherwise they end up at
Index: Unwind/UnwindRegistersRestore.S
===================================================================
--- Unwind/UnwindRegistersRestore.S
+++ Unwind/UnwindRegistersRestore.S
@@ -1,445 +0,0 @@
-//===-------------------- UnwindRegistersRestore.S ------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "assembly.h"
-
- .text
-
-#if __i386__
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_x866jumptoEv)
-#
-# void libunwind::Registers_x86::jumpto()
-#
-# On entry:
-# + +
-# +-----------------------+
-# + thread_state pointer +
-# +-----------------------+
-# + return address +
-# +-----------------------+ <-- SP
-# + +
- movl 4(%esp), %eax
- # set up eax and ret on new stack location
- movl 28(%eax), %edx # edx holds new stack pointer
- subl $8,%edx
- movl %edx, 28(%eax)
- movl 0(%eax), %ebx
- movl %ebx, 0(%edx)
- movl 40(%eax), %ebx
- movl %ebx, 4(%edx)
- # we now have ret and eax pushed onto where new stack will be
- # restore all registers
- movl 4(%eax), %ebx
- movl 8(%eax), %ecx
- movl 12(%eax), %edx
- movl 16(%eax), %edi
- movl 20(%eax), %esi
- movl 24(%eax), %ebp
- movl 28(%eax), %esp
- # skip ss
- # skip eflags
- pop %eax # eax was already pushed on new stack
- ret # eip was already pushed on new stack
- # skip cs
- # skip ds
- # skip es
- # skip fs
- # skip gs
-
-#elif __x86_64__
-
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind16Registers_x86_646jumptoEv)
-#
-# void libunwind::Registers_x86_64::jumpto()
-#
-# On entry, thread_state pointer is in rdi
-
- movq 56(%rdi), %rax # rax holds new stack pointer
- subq $16, %rax
- movq %rax, 56(%rdi)
- movq 32(%rdi), %rbx # store new rdi on new stack
- movq %rbx, 0(%rax)
- movq 128(%rdi), %rbx # store new rip on new stack
- movq %rbx, 8(%rax)
- # restore all registers
- movq 0(%rdi), %rax
- movq 8(%rdi), %rbx
- movq 16(%rdi), %rcx
- movq 24(%rdi), %rdx
- # restore rdi later
- movq 40(%rdi), %rsi
- movq 48(%rdi), %rbp
- # restore rsp later
- movq 64(%rdi), %r8
- movq 72(%rdi), %r9
- movq 80(%rdi), %r10
- movq 88(%rdi), %r11
- movq 96(%rdi), %r12
- movq 104(%rdi), %r13
- movq 112(%rdi), %r14
- movq 120(%rdi), %r15
- # skip rflags
- # skip cs
- # skip fs
- # skip gs
- movq 56(%rdi), %rsp # cut back rsp to new location
- pop %rdi # rdi was saved here earlier
- ret # rip was saved here
-
-
-#elif __ppc__
-
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_ppc6jumptoEv)
-;
-; void libunwind::Registers_ppc::jumpto()
-;
-; On entry:
-; thread_state pointer is in r3
-;
-
- ; restore integral registerrs
- ; skip r0 for now
- ; skip r1 for now
- lwz r2, 16(r3)
- ; skip r3 for now
- ; skip r4 for now
- ; skip r5 for now
- lwz r6, 32(r3)
- lwz r7, 36(r3)
- lwz r8, 40(r3)
- lwz r9, 44(r3)
- lwz r10, 48(r3)
- lwz r11, 52(r3)
- lwz r12, 56(r3)
- lwz r13, 60(r3)
- lwz r14, 64(r3)
- lwz r15, 68(r3)
- lwz r16, 72(r3)
- lwz r17, 76(r3)
- lwz r18, 80(r3)
- lwz r19, 84(r3)
- lwz r20, 88(r3)
- lwz r21, 92(r3)
- lwz r22, 96(r3)
- lwz r23,100(r3)
- lwz r24,104(r3)
- lwz r25,108(r3)
- lwz r26,112(r3)
- lwz r27,116(r3)
- lwz r28,120(r3)
- lwz r29,124(r3)
- lwz r30,128(r3)
- lwz r31,132(r3)
-
- ; restore float registers
- lfd f0, 160(r3)
- lfd f1, 168(r3)
- lfd f2, 176(r3)
- lfd f3, 184(r3)
- lfd f4, 192(r3)
- lfd f5, 200(r3)
- lfd f6, 208(r3)
- lfd f7, 216(r3)
- lfd f8, 224(r3)
- lfd f9, 232(r3)
- lfd f10,240(r3)
- lfd f11,248(r3)
- lfd f12,256(r3)
- lfd f13,264(r3)
- lfd f14,272(r3)
- lfd f15,280(r3)
- lfd f16,288(r3)
- lfd f17,296(r3)
- lfd f18,304(r3)
- lfd f19,312(r3)
- lfd f20,320(r3)
- lfd f21,328(r3)
- lfd f22,336(r3)
- lfd f23,344(r3)
- lfd f24,352(r3)
- lfd f25,360(r3)
- lfd f26,368(r3)
- lfd f27,376(r3)
- lfd f28,384(r3)
- lfd f29,392(r3)
- lfd f30,400(r3)
- lfd f31,408(r3)
-
- ; restore vector registers if any are in use
- lwz r5,156(r3) ; test VRsave
- cmpwi r5,0
- beq Lnovec
-
- subi r4,r1,16
- rlwinm r4,r4,0,0,27 ; mask low 4-bits
- ; r4 is now a 16-byte aligned pointer into the red zone
- ; the _vectorRegisters may not be 16-byte aligned so copy via red zone temp buffer
-
-
-#define LOAD_VECTOR_UNALIGNEDl(_index) \
- andis. r0,r5,(1<<(15-_index)) @\
- beq Ldone ## _index @\
- lwz r0, 424+_index*16(r3) @\
- stw r0, 0(r4) @\
- lwz r0, 424+_index*16+4(r3) @\
- stw r0, 4(r4) @\
- lwz r0, 424+_index*16+8(r3) @\
- stw r0, 8(r4) @\
- lwz r0, 424+_index*16+12(r3)@\
- stw r0, 12(r4) @\
- lvx v ## _index,0,r4 @\
-Ldone ## _index:
-
-#define LOAD_VECTOR_UNALIGNEDh(_index) \
- andi. r0,r5,(1<<(31-_index)) @\
- beq Ldone ## _index @\
- lwz r0, 424+_index*16(r3) @\
- stw r0, 0(r4) @\
- lwz r0, 424+_index*16+4(r3) @\
- stw r0, 4(r4) @\
- lwz r0, 424+_index*16+8(r3) @\
- stw r0, 8(r4) @\
- lwz r0, 424+_index*16+12(r3)@\
- stw r0, 12(r4) @\
- lvx v ## _index,0,r4 @\
- Ldone ## _index:
-
-
- LOAD_VECTOR_UNALIGNEDl(0)
- LOAD_VECTOR_UNALIGNEDl(1)
- LOAD_VECTOR_UNALIGNEDl(2)
- LOAD_VECTOR_UNALIGNEDl(3)
- LOAD_VECTOR_UNALIGNEDl(4)
- LOAD_VECTOR_UNALIGNEDl(5)
- LOAD_VECTOR_UNALIGNEDl(6)
- LOAD_VECTOR_UNALIGNEDl(7)
- LOAD_VECTOR_UNALIGNEDl(8)
- LOAD_VECTOR_UNALIGNEDl(9)
- LOAD_VECTOR_UNALIGNEDl(10)
- LOAD_VECTOR_UNALIGNEDl(11)
- LOAD_VECTOR_UNALIGNEDl(12)
- LOAD_VECTOR_UNALIGNEDl(13)
- LOAD_VECTOR_UNALIGNEDl(14)
- LOAD_VECTOR_UNALIGNEDl(15)
- LOAD_VECTOR_UNALIGNEDh(16)
- LOAD_VECTOR_UNALIGNEDh(17)
- LOAD_VECTOR_UNALIGNEDh(18)
- LOAD_VECTOR_UNALIGNEDh(19)
- LOAD_VECTOR_UNALIGNEDh(20)
- LOAD_VECTOR_UNALIGNEDh(21)
- LOAD_VECTOR_UNALIGNEDh(22)
- LOAD_VECTOR_UNALIGNEDh(23)
- LOAD_VECTOR_UNALIGNEDh(24)
- LOAD_VECTOR_UNALIGNEDh(25)
- LOAD_VECTOR_UNALIGNEDh(26)
- LOAD_VECTOR_UNALIGNEDh(27)
- LOAD_VECTOR_UNALIGNEDh(28)
- LOAD_VECTOR_UNALIGNEDh(29)
- LOAD_VECTOR_UNALIGNEDh(30)
- LOAD_VECTOR_UNALIGNEDh(31)
-
-Lnovec:
- lwz r0, 136(r3) ; __cr
- mtocrf 255,r0
- lwz r0, 148(r3) ; __ctr
- mtctr r0
- lwz r0, 0(r3) ; __ssr0
- mtctr r0
- lwz r0, 8(r3) ; do r0 now
- lwz r5,28(r3) ; do r5 now
- lwz r4,24(r3) ; do r4 now
- lwz r1,12(r3) ; do sp now
- lwz r3,20(r3) ; do r3 last
- bctr
-
-#elif __arm64__
-
-;
-; void libunwind::Registers_arm64::jumpto()
-;
-; On entry:
-; thread_state pointer is in x0
-;
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind15Registers_arm646jumptoEv)
- ; skip restore of x0,x1 for now
- ldp x2, x3, [x0, #0x010]
- ldp x4, x5, [x0, #0x020]
- ldp x6, x7, [x0, #0x030]
- ldp x8, x9, [x0, #0x040]
- ldp x10,x11, [x0, #0x050]
- ldp x12,x13, [x0, #0x060]
- ldp x14,x15, [x0, #0x070]
- ldp x16,x17, [x0, #0x080]
- ldp x18,x19, [x0, #0x090]
- ldp x20,x21, [x0, #0x0A0]
- ldp x22,x23, [x0, #0x0B0]
- ldp x24,x25, [x0, #0x0C0]
- ldp x26,x27, [x0, #0x0D0]
- ldp x28,fp, [x0, #0x0E0]
- ldr lr, [x0, #0x100] ; restore pc into lr
- ldr x1, [x0, #0x0F8]
- mov sp,x1 ; restore sp
-
- ldp d0, d1, [x0, #0x110]
- ldp d2, d3, [x0, #0x120]
- ldp d4, d5, [x0, #0x130]
- ldp d6, d7, [x0, #0x140]
- ldp d8, d9, [x0, #0x150]
- ldp d10,d11, [x0, #0x160]
- ldp d12,d13, [x0, #0x170]
- ldp d14,d15, [x0, #0x180]
- ldp d16,d17, [x0, #0x190]
- ldp d18,d19, [x0, #0x1A0]
- ldp d20,d21, [x0, #0x1B0]
- ldp d22,d23, [x0, #0x1C0]
- ldp d24,d25, [x0, #0x1D0]
- ldp d26,d27, [x0, #0x1E0]
- ldp d28,d29, [x0, #0x1F0]
- ldr d30, [x0, #0x200]
- ldr d31, [x0, #0x208]
-
- ldp x0, x1, [x0, #0x000] ; restore x0,x1
- ret lr ; jump to pc
-
-#elif __arm__ && !__APPLE__
-
-#if !defined(__ARM_ARCH_ISA_ARM)
- .thumb
-#endif
-
-@
-@ void libunwind::Registers_arm::restoreCoreAndJumpTo()
-@
-@ On entry:
-@ thread_state pointer is in r0
-@
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm20restoreCoreAndJumpToEv)
-#if !defined(__ARM_ARCH_ISA_ARM)
- ldr r2, [r0, #52]
- ldr r3, [r0, #60]
- mov sp, r2
- mov lr, r3 @ restore pc into lr
- ldm r0, {r0-r7}
-#else
- @ Use lr as base so that r0 can be restored.
- mov lr, r0
- @ 32bit thumb-2 restrictions for ldm:
- @ . the sp (r13) cannot be in the list
- @ . the pc (r15) and lr (r14) cannot both be in the list in an LDM instruction
- ldm lr, {r0-r12}
- ldr sp, [lr, #52]
- ldr lr, [lr, #60] @ restore pc into lr
-#endif
- JMP(lr)
-
-@
-@ static void libunwind::Registers_arm::restoreVFPWithFLDMD(unw_fpreg_t* values)
-@
-@ On entry:
-@ values pointer is in r0
-@
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm19restoreVFPWithFLDMDEPy)
-#if defined(__ARM_FP)
- @ VFP and iwMMX instructions are only available when compiling with the flags
- @ that enable them. We do not want to do that in the library (because we do not
- @ want the compiler to generate instructions that access those) but this is
- @ only accessed if the personality routine needs these registers. Use of
- @ these registers implies they are, actually, available on the target, so
- @ it's ok to execute.
- @ So, generate the instruction using the corresponding coprocessor mnemonic.
-#if __ARM_ARCH < 7
- ldc p11, cr0, [r0], {0x20} @ fldmiad r0, {d0-d15}
-#else
- vldmia r0, {d0-d15}
-#endif
-#endif
- JMP(lr)
-
-@
-@ static void libunwind::Registers_arm::restoreVFPWithFLDMX(unw_fpreg_t* values)
-@
-@ On entry:
-@ values pointer is in r0
-@
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm19restoreVFPWithFLDMXEPy)
-#if defined(__ARM_FP)
-#if __ARM_ARCH < 7
- ldc p11, cr0, [r0], {0x21} @ fldmiax r0, {d0-d15}
-#else
- vldmia r0, {d0-d15} @ fldmiax is deprecated in ARMv7+ and now behaves like vldmia
-#endif
-#endif
- JMP(lr)
-
-@
-@ static void libunwind::Registers_arm::restoreVFPv3(unw_fpreg_t* values)
-@
-@ On entry:
-@ values pointer is in r0
-@
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm12restoreVFPv3EPy)
-#if defined(__ARM_FP)
-#ifndef __ARM_NEON
- ldcl p11, cr0, [r0], {0x20} @ vldm r0, {d16-d31}
-#else
- vldmia r0, {d16-d31}
-#endif
-#endif
- JMP(lr)
-
-@
-@ static void libunwind::Registers_arm::restoreiWMMX(unw_fpreg_t* values)
-@
-@ On entry:
-@ values pointer is in r0
-@
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm12restoreiWMMXEPy)
-#if (!defined(__ARM_ARCH_6M__) && !defined(__ARM_ARCH_6SM__)) || __ARM_WMMX
- 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
-#endif
- JMP(lr)
-
-@
-@ static void libunwind::Registers_arm::restoreiWMMXControl(unw_uint32_t* values)
-@
-@ On entry:
-@ values pointer is in r0
-@
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm19restoreiWMMXControlEPj)
-#if (!defined(__ARM_ARCH_6M__) && !defined(__ARM_ARCH_6SM__)) || __ARM_WMMX
- 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
-#endif
- JMP(lr)
-
-#endif
Index: Unwind/UnwindRegistersRestore_jumpto.S
===================================================================
--- Unwind/UnwindRegistersRestore_jumpto.S
+++ Unwind/UnwindRegistersRestore_jumpto.S
@@ -0,0 +1,311 @@
+//===-------------------- UnwindRegistersRestore.S ------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __i386__
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_x866jumptoEv)
+#
+# void libunwind::Registers_x86::jumpto()
+#
+# On entry:
+# + +
+# +-----------------------+
+# + thread_state pointer +
+# +-----------------------+
+# + return address +
+# +-----------------------+ <-- SP
+# + +
+ movl 4(%esp), %eax
+ # set up eax and ret on new stack location
+ movl 28(%eax), %edx # edx holds new stack pointer
+ subl $8,%edx
+ movl %edx, 28(%eax)
+ movl 0(%eax), %ebx
+ movl %ebx, 0(%edx)
+ movl 40(%eax), %ebx
+ movl %ebx, 4(%edx)
+ # we now have ret and eax pushed onto where new stack will be
+ # restore all registers
+ movl 4(%eax), %ebx
+ movl 8(%eax), %ecx
+ movl 12(%eax), %edx
+ movl 16(%eax), %edi
+ movl 20(%eax), %esi
+ movl 24(%eax), %ebp
+ movl 28(%eax), %esp
+ # skip ss
+ # skip eflags
+ pop %eax # eax was already pushed on new stack
+ ret # eip was already pushed on new stack
+ # skip cs
+ # skip ds
+ # skip es
+ # skip fs
+ # skip gs
+
+#elif __x86_64__
+
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind16Registers_x86_646jumptoEv)
+#
+# void libunwind::Registers_x86_64::jumpto()
+#
+# On entry, thread_state pointer is in rdi
+
+ movq 56(%rdi), %rax # rax holds new stack pointer
+ subq $16, %rax
+ movq %rax, 56(%rdi)
+ movq 32(%rdi), %rbx # store new rdi on new stack
+ movq %rbx, 0(%rax)
+ movq 128(%rdi), %rbx # store new rip on new stack
+ movq %rbx, 8(%rax)
+ # restore all registers
+ movq 0(%rdi), %rax
+ movq 8(%rdi), %rbx
+ movq 16(%rdi), %rcx
+ movq 24(%rdi), %rdx
+ # restore rdi later
+ movq 40(%rdi), %rsi
+ movq 48(%rdi), %rbp
+ # restore rsp later
+ movq 64(%rdi), %r8
+ movq 72(%rdi), %r9
+ movq 80(%rdi), %r10
+ movq 88(%rdi), %r11
+ movq 96(%rdi), %r12
+ movq 104(%rdi), %r13
+ movq 112(%rdi), %r14
+ movq 120(%rdi), %r15
+ # skip rflags
+ # skip cs
+ # skip fs
+ # skip gs
+ movq 56(%rdi), %rsp # cut back rsp to new location
+ pop %rdi # rdi was saved here earlier
+ ret # rip was saved here
+
+
+#elif __ppc__
+
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_ppc6jumptoEv)
+;
+; void libunwind::Registers_ppc::jumpto()
+;
+; On entry:
+; thread_state pointer is in r3
+;
+
+ ; restore integral registerrs
+ ; skip r0 for now
+ ; skip r1 for now
+ lwz r2, 16(r3)
+ ; skip r3 for now
+ ; skip r4 for now
+ ; skip r5 for now
+ lwz r6, 32(r3)
+ lwz r7, 36(r3)
+ lwz r8, 40(r3)
+ lwz r9, 44(r3)
+ lwz r10, 48(r3)
+ lwz r11, 52(r3)
+ lwz r12, 56(r3)
+ lwz r13, 60(r3)
+ lwz r14, 64(r3)
+ lwz r15, 68(r3)
+ lwz r16, 72(r3)
+ lwz r17, 76(r3)
+ lwz r18, 80(r3)
+ lwz r19, 84(r3)
+ lwz r20, 88(r3)
+ lwz r21, 92(r3)
+ lwz r22, 96(r3)
+ lwz r23,100(r3)
+ lwz r24,104(r3)
+ lwz r25,108(r3)
+ lwz r26,112(r3)
+ lwz r27,116(r3)
+ lwz r28,120(r3)
+ lwz r29,124(r3)
+ lwz r30,128(r3)
+ lwz r31,132(r3)
+
+ ; restore float registers
+ lfd f0, 160(r3)
+ lfd f1, 168(r3)
+ lfd f2, 176(r3)
+ lfd f3, 184(r3)
+ lfd f4, 192(r3)
+ lfd f5, 200(r3)
+ lfd f6, 208(r3)
+ lfd f7, 216(r3)
+ lfd f8, 224(r3)
+ lfd f9, 232(r3)
+ lfd f10,240(r3)
+ lfd f11,248(r3)
+ lfd f12,256(r3)
+ lfd f13,264(r3)
+ lfd f14,272(r3)
+ lfd f15,280(r3)
+ lfd f16,288(r3)
+ lfd f17,296(r3)
+ lfd f18,304(r3)
+ lfd f19,312(r3)
+ lfd f20,320(r3)
+ lfd f21,328(r3)
+ lfd f22,336(r3)
+ lfd f23,344(r3)
+ lfd f24,352(r3)
+ lfd f25,360(r3)
+ lfd f26,368(r3)
+ lfd f27,376(r3)
+ lfd f28,384(r3)
+ lfd f29,392(r3)
+ lfd f30,400(r3)
+ lfd f31,408(r3)
+
+ ; restore vector registers if any are in use
+ lwz r5,156(r3) ; test VRsave
+ cmpwi r5,0
+ beq Lnovec
+
+ subi r4,r1,16
+ rlwinm r4,r4,0,0,27 ; mask low 4-bits
+ ; r4 is now a 16-byte aligned pointer into the red zone
+ ; the _vectorRegisters may not be 16-byte aligned so copy via red zone temp buffer
+
+
+#define LOAD_VECTOR_UNALIGNEDl(_index) \
+ andis. r0,r5,(1<<(15-_index)) @\
+ beq Ldone ## _index @\
+ lwz r0, 424+_index*16(r3) @\
+ stw r0, 0(r4) @\
+ lwz r0, 424+_index*16+4(r3) @\
+ stw r0, 4(r4) @\
+ lwz r0, 424+_index*16+8(r3) @\
+ stw r0, 8(r4) @\
+ lwz r0, 424+_index*16+12(r3)@\
+ stw r0, 12(r4) @\
+ lvx v ## _index,0,r4 @\
+Ldone ## _index:
+
+#define LOAD_VECTOR_UNALIGNEDh(_index) \
+ andi. r0,r5,(1<<(31-_index)) @\
+ beq Ldone ## _index @\
+ lwz r0, 424+_index*16(r3) @\
+ stw r0, 0(r4) @\
+ lwz r0, 424+_index*16+4(r3) @\
+ stw r0, 4(r4) @\
+ lwz r0, 424+_index*16+8(r3) @\
+ stw r0, 8(r4) @\
+ lwz r0, 424+_index*16+12(r3)@\
+ stw r0, 12(r4) @\
+ lvx v ## _index,0,r4 @\
+ Ldone ## _index:
+
+
+ LOAD_VECTOR_UNALIGNEDl(0)
+ LOAD_VECTOR_UNALIGNEDl(1)
+ LOAD_VECTOR_UNALIGNEDl(2)
+ LOAD_VECTOR_UNALIGNEDl(3)
+ LOAD_VECTOR_UNALIGNEDl(4)
+ LOAD_VECTOR_UNALIGNEDl(5)
+ LOAD_VECTOR_UNALIGNEDl(6)
+ LOAD_VECTOR_UNALIGNEDl(7)
+ LOAD_VECTOR_UNALIGNEDl(8)
+ LOAD_VECTOR_UNALIGNEDl(9)
+ LOAD_VECTOR_UNALIGNEDl(10)
+ LOAD_VECTOR_UNALIGNEDl(11)
+ LOAD_VECTOR_UNALIGNEDl(12)
+ LOAD_VECTOR_UNALIGNEDl(13)
+ LOAD_VECTOR_UNALIGNEDl(14)
+ LOAD_VECTOR_UNALIGNEDl(15)
+ LOAD_VECTOR_UNALIGNEDh(16)
+ LOAD_VECTOR_UNALIGNEDh(17)
+ LOAD_VECTOR_UNALIGNEDh(18)
+ LOAD_VECTOR_UNALIGNEDh(19)
+ LOAD_VECTOR_UNALIGNEDh(20)
+ LOAD_VECTOR_UNALIGNEDh(21)
+ LOAD_VECTOR_UNALIGNEDh(22)
+ LOAD_VECTOR_UNALIGNEDh(23)
+ LOAD_VECTOR_UNALIGNEDh(24)
+ LOAD_VECTOR_UNALIGNEDh(25)
+ LOAD_VECTOR_UNALIGNEDh(26)
+ LOAD_VECTOR_UNALIGNEDh(27)
+ LOAD_VECTOR_UNALIGNEDh(28)
+ LOAD_VECTOR_UNALIGNEDh(29)
+ LOAD_VECTOR_UNALIGNEDh(30)
+ LOAD_VECTOR_UNALIGNEDh(31)
+
+Lnovec:
+ lwz r0, 136(r3) ; __cr
+ mtocrf 255,r0
+ lwz r0, 148(r3) ; __ctr
+ mtctr r0
+ lwz r0, 0(r3) ; __ssr0
+ mtctr r0
+ lwz r0, 8(r3) ; do r0 now
+ lwz r5,28(r3) ; do r5 now
+ lwz r4,24(r3) ; do r4 now
+ lwz r1,12(r3) ; do sp now
+ lwz r3,20(r3) ; do r3 last
+ bctr
+
+#elif __arm64__
+
+;
+; void libunwind::Registers_arm64::jumpto()
+;
+; On entry:
+; thread_state pointer is in x0
+;
+ .p2align 2
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind15Registers_arm646jumptoEv)
+ ; skip restore of x0,x1 for now
+ ldp x2, x3, [x0, #0x010]
+ ldp x4, x5, [x0, #0x020]
+ ldp x6, x7, [x0, #0x030]
+ ldp x8, x9, [x0, #0x040]
+ ldp x10,x11, [x0, #0x050]
+ ldp x12,x13, [x0, #0x060]
+ ldp x14,x15, [x0, #0x070]
+ ldp x16,x17, [x0, #0x080]
+ ldp x18,x19, [x0, #0x090]
+ ldp x20,x21, [x0, #0x0A0]
+ ldp x22,x23, [x0, #0x0B0]
+ ldp x24,x25, [x0, #0x0C0]
+ ldp x26,x27, [x0, #0x0D0]
+ ldp x28,fp, [x0, #0x0E0]
+ ldr lr, [x0, #0x100] ; restore pc into lr
+ ldr x1, [x0, #0x0F8]
+ mov sp,x1 ; restore sp
+
+ ldp d0, d1, [x0, #0x110]
+ ldp d2, d3, [x0, #0x120]
+ ldp d4, d5, [x0, #0x130]
+ ldp d6, d7, [x0, #0x140]
+ ldp d8, d9, [x0, #0x150]
+ ldp d10,d11, [x0, #0x160]
+ ldp d12,d13, [x0, #0x170]
+ ldp d14,d15, [x0, #0x180]
+ ldp d16,d17, [x0, #0x190]
+ ldp d18,d19, [x0, #0x1A0]
+ ldp d20,d21, [x0, #0x1B0]
+ ldp d22,d23, [x0, #0x1C0]
+ ldp d24,d25, [x0, #0x1D0]
+ ldp d26,d27, [x0, #0x1E0]
+ ldp d28,d29, [x0, #0x1F0]
+ ldr d30, [x0, #0x200]
+ ldr d31, [x0, #0x208]
+
+ ldp x0, x1, [x0, #0x000] ; restore x0,x1
+ ret lr ; jump to pc
+
+#endif
Index: Unwind/UnwindRegistersRestore_restoreCoreAndJumpTo.S
===================================================================
--- Unwind/UnwindRegistersRestore_restoreCoreAndJumpTo.S
+++ Unwind/UnwindRegistersRestore_restoreCoreAndJumpTo.S
@@ -0,0 +1,46 @@
+//===----------- UnwindRegistersRestore_restoreCoreAndJumpTo.S ------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@
+@ void libunwind::Registers_arm::restoreCoreAndJumpTo()
+@
+@ On entry:
+@ thread_state pointer is in r0
+@
+ .p2align 2
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm20restoreCoreAndJumpToEv)
+#if !defined(__ARM_ARCH_ISA_ARM)
+ ldr r2, [r0, #52]
+ ldr r3, [r0, #60]
+ mov sp, r2
+ mov lr, r3 @ restore pc into lr
+ ldm r0, {r0-r7}
+#else
+ @ Use lr as base so that r0 can be restored.
+ mov lr, r0
+ @ 32bit thumb-2 restrictions for ldm:
+ @ . the sp (r13) cannot be in the list
+ @ . the pc (r15) and lr (r14) cannot both be in the list in an LDM instruction
+ ldm lr, {r0-r12}
+ ldr sp, [lr, #52]
+ ldr lr, [lr, #60] @ restore pc into lr
+#endif
+ JMP(lr)
+
+#endif
Index: Unwind/UnwindRegistersRestore_restoreVFPWithFLDMD.S
===================================================================
--- Unwind/UnwindRegistersRestore_restoreVFPWithFLDMD.S
+++ Unwind/UnwindRegistersRestore_restoreVFPWithFLDMD.S
@@ -0,0 +1,39 @@
+//===-------------------- UnwindRegistersRestore.S ------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@
+@ static void libunwind::Registers_arm::restoreVFPWithFLDMD(unw_fpreg_t* values)
+@
+@ On entry:
+@ values pointer is in r0
+@
+ .p2align 2
+ .fpu vfpv2
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm19restoreVFPWithFLDMDEPy)
+ @ VFP and iwMMX instructions are only available when compiling with the flags
+ @ that enable them. We do not want to do that in the library (because we do not
+ @ want the compiler to generate instructions that access those) but this is
+ @ only accessed if the personality routine needs these registers. Use of
+ @ these registers implies they are, actually, available on the target, so
+ @ it's ok to execute.
+ @ So, generate the instruction using the corresponding coprocessor mnemonic.
+ vldmia r0, {d0-d15}
+ JMP(lr)
+
+#endif
Index: Unwind/UnwindRegistersRestore_restoreVFPWithFLDMX.S
===================================================================
--- Unwind/UnwindRegistersRestore_restoreVFPWithFLDMX.S
+++ Unwind/UnwindRegistersRestore_restoreVFPWithFLDMX.S
@@ -0,0 +1,32 @@
+//===-------------------- UnwindRegistersRestore.S ------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@
+@ static void libunwind::Registers_arm::restoreVFPWithFLDMX(unw_fpreg_t* values)
+@
+@ On entry:
+@ values pointer is in r0
+@
+ .p2align 2
+ .fpu vfpv2
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm19restoreVFPWithFLDMXEPy)
+ vldmia r0, {d0-d15} @ fldmiax is deprecated in ARMv7+ and now behaves like vldmia
+ JMP(lr)
+
+#endif
Index: Unwind/UnwindRegistersRestore_restoreVFPv3.S
===================================================================
--- Unwind/UnwindRegistersRestore_restoreVFPv3.S
+++ Unwind/UnwindRegistersRestore_restoreVFPv3.S
@@ -0,0 +1,32 @@
+//===--------------- UnwindRegistersRestore_restoreVFPv3.S ----------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@
+@ static void libunwind::Registers_arm::restoreVFPv3(unw_fpreg_t* values)
+@
+@ On entry:
+@ values pointer is in r0
+@
+ .p2align 2
+ .fpu vfpv3
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm12restoreVFPv3EPy)
+ vldmia r0, {d16-d31}
+ JMP(lr)
+
+#endif
Index: Unwind/UnwindRegistersRestore_restoreiWMMX.S
===================================================================
--- Unwind/UnwindRegistersRestore_restoreiWMMX.S
+++ Unwind/UnwindRegistersRestore_restoreiWMMX.S
@@ -0,0 +1,49 @@
+//===--------------- UnwindRegistersRestore_restoreiWMMX.S ----------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@ Lie to the assembler to force it to let us use coprocessor mnemonics
+.arch armv5t
+
+@
+@ static void libunwind::Registers_arm::restoreiWMMX(unw_fpreg_t* values)
+@
+@ On entry:
+@ values pointer is in r0
+@
+ .p2align 2
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm12restoreiWMMXEPy)
+ 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
+ JMP(lr)
+
+#endif
Index: Unwind/UnwindRegistersRestore_restoreiWMMXControl.S
===================================================================
--- Unwind/UnwindRegistersRestore_restoreiWMMXControl.S
+++ Unwind/UnwindRegistersRestore_restoreiWMMXControl.S
@@ -0,0 +1,37 @@
+//===------------ UnwindRegistersRestore_restoreiWMMXControl.S ------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@ Lie to the assembler to force it to let us use coprocessor mnemonics
+.arch armv5t
+
+@
+@ static void libunwind::Registers_arm::restoreiWMMXControl(unw_uint32_t* values)
+@
+@ On entry:
+@ values pointer is in r0
+@
+ .p2align 2
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm19restoreiWMMXControlEPj)
+ 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
+ JMP(lr)
+
+#endif
Index: Unwind/UnwindRegistersSave.S
===================================================================
--- Unwind/UnwindRegistersSave.S
+++ Unwind/UnwindRegistersSave.S
@@ -1,424 +0,0 @@
-//===------------------------ UnwindRegistersSave.S -----------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "assembly.h"
-
- .text
-
-#if __i386__
-
-#
-# extern int unw_getcontext(unw_context_t* thread_state)
-#
-# On entry:
-# + +
-# +-----------------------+
-# + thread_state pointer +
-# +-----------------------+
-# + return address +
-# +-----------------------+ <-- SP
-# + +
-#
-DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
- push %eax
- movl 8(%esp), %eax
- movl %ebx, 4(%eax)
- movl %ecx, 8(%eax)
- movl %edx, 12(%eax)
- movl %edi, 16(%eax)
- movl %esi, 20(%eax)
- movl %ebp, 24(%eax)
- movl %esp, %edx
- addl $8, %edx
- movl %edx, 28(%eax) # store what sp was at call site as esp
- # skip ss
- # skip eflags
- movl 4(%esp), %edx
- movl %edx, 40(%eax) # store return address as eip
- # skip cs
- # skip ds
- # skip es
- # skip fs
- # skip gs
- movl (%esp), %edx
- movl %edx, (%eax) # store original eax
- popl %eax
- xorl %eax, %eax # return UNW_ESUCCESS
- ret
-
-#elif __x86_64__
-
-#
-# extern int unw_getcontext(unw_context_t* thread_state)
-#
-# On entry:
-# thread_state pointer is in rdi
-#
-DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
- movq %rax, (%rdi)
- movq %rbx, 8(%rdi)
- movq %rcx, 16(%rdi)
- movq %rdx, 24(%rdi)
- movq %rdi, 32(%rdi)
- movq %rsi, 40(%rdi)
- movq %rbp, 48(%rdi)
- movq %rsp, 56(%rdi)
- addq $8, 56(%rdi)
- movq %r8, 64(%rdi)
- movq %r9, 72(%rdi)
- movq %r10, 80(%rdi)
- movq %r11, 88(%rdi)
- movq %r12, 96(%rdi)
- movq %r13,104(%rdi)
- movq %r14,112(%rdi)
- movq %r15,120(%rdi)
- movq (%rsp),%rsi
- movq %rsi,128(%rdi) # store return address as rip
- # skip rflags
- # skip cs
- # skip fs
- # skip gs
- xorl %eax, %eax # return UNW_ESUCCESS
- ret
-
-#elif __ppc__
-
-;
-; extern int unw_getcontext(unw_context_t* thread_state)
-;
-; On entry:
-; thread_state pointer is in r3
-;
-DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
- stw r0, 8(r3)
- mflr r0
- stw r0, 0(r3) ; store lr as ssr0
- stw r1, 12(r3)
- stw r2, 16(r3)
- stw r3, 20(r3)
- stw r4, 24(r3)
- stw r5, 28(r3)
- stw r6, 32(r3)
- stw r7, 36(r3)
- stw r8, 40(r3)
- stw r9, 44(r3)
- stw r10, 48(r3)
- stw r11, 52(r3)
- stw r12, 56(r3)
- stw r13, 60(r3)
- stw r14, 64(r3)
- stw r15, 68(r3)
- stw r16, 72(r3)
- stw r17, 76(r3)
- stw r18, 80(r3)
- stw r19, 84(r3)
- stw r20, 88(r3)
- stw r21, 92(r3)
- stw r22, 96(r3)
- stw r23,100(r3)
- stw r24,104(r3)
- stw r25,108(r3)
- stw r26,112(r3)
- stw r27,116(r3)
- stw r28,120(r3)
- stw r29,124(r3)
- stw r30,128(r3)
- stw r31,132(r3)
-
- ; save VRSave register
- mfspr r0,256
- stw r0,156(r3)
- ; save CR registers
- mfcr r0
- stw r0,136(r3)
- ; save CTR register
- mfctr r0
- stw r0,148(r3)
-
- ; save float registers
- stfd f0, 160(r3)
- stfd f1, 168(r3)
- stfd f2, 176(r3)
- stfd f3, 184(r3)
- stfd f4, 192(r3)
- stfd f5, 200(r3)
- stfd f6, 208(r3)
- stfd f7, 216(r3)
- stfd f8, 224(r3)
- stfd f9, 232(r3)
- stfd f10,240(r3)
- stfd f11,248(r3)
- stfd f12,256(r3)
- stfd f13,264(r3)
- stfd f14,272(r3)
- stfd f15,280(r3)
- stfd f16,288(r3)
- stfd f17,296(r3)
- stfd f18,304(r3)
- stfd f19,312(r3)
- stfd f20,320(r3)
- stfd f21,328(r3)
- stfd f22,336(r3)
- stfd f23,344(r3)
- stfd f24,352(r3)
- stfd f25,360(r3)
- stfd f26,368(r3)
- stfd f27,376(r3)
- stfd f28,384(r3)
- stfd f29,392(r3)
- stfd f30,400(r3)
- stfd f31,408(r3)
-
-
- ; save vector registers
-
- subi r4,r1,16
- rlwinm r4,r4,0,0,27 ; mask low 4-bits
- ; r4 is now a 16-byte aligned pointer into the red zone
-
-#define SAVE_VECTOR_UNALIGNED(_vec, _offset) \
- stvx _vec,0,r4 @\
- lwz r5, 0(r4) @\
- stw r5, _offset(r3) @\
- lwz r5, 4(r4) @\
- stw r5, _offset+4(r3) @\
- lwz r5, 8(r4) @\
- stw r5, _offset+8(r3) @\
- lwz r5, 12(r4) @\
- stw r5, _offset+12(r3)
-
- SAVE_VECTOR_UNALIGNED( v0, 424+0x000)
- SAVE_VECTOR_UNALIGNED( v1, 424+0x010)
- SAVE_VECTOR_UNALIGNED( v2, 424+0x020)
- SAVE_VECTOR_UNALIGNED( v3, 424+0x030)
- SAVE_VECTOR_UNALIGNED( v4, 424+0x040)
- SAVE_VECTOR_UNALIGNED( v5, 424+0x050)
- SAVE_VECTOR_UNALIGNED( v6, 424+0x060)
- SAVE_VECTOR_UNALIGNED( v7, 424+0x070)
- SAVE_VECTOR_UNALIGNED( v8, 424+0x080)
- SAVE_VECTOR_UNALIGNED( v9, 424+0x090)
- SAVE_VECTOR_UNALIGNED(v10, 424+0x0A0)
- SAVE_VECTOR_UNALIGNED(v11, 424+0x0B0)
- SAVE_VECTOR_UNALIGNED(v12, 424+0x0C0)
- SAVE_VECTOR_UNALIGNED(v13, 424+0x0D0)
- SAVE_VECTOR_UNALIGNED(v14, 424+0x0E0)
- SAVE_VECTOR_UNALIGNED(v15, 424+0x0F0)
- SAVE_VECTOR_UNALIGNED(v16, 424+0x100)
- SAVE_VECTOR_UNALIGNED(v17, 424+0x110)
- SAVE_VECTOR_UNALIGNED(v18, 424+0x120)
- SAVE_VECTOR_UNALIGNED(v19, 424+0x130)
- SAVE_VECTOR_UNALIGNED(v20, 424+0x140)
- SAVE_VECTOR_UNALIGNED(v21, 424+0x150)
- SAVE_VECTOR_UNALIGNED(v22, 424+0x160)
- SAVE_VECTOR_UNALIGNED(v23, 424+0x170)
- SAVE_VECTOR_UNALIGNED(v24, 424+0x180)
- SAVE_VECTOR_UNALIGNED(v25, 424+0x190)
- SAVE_VECTOR_UNALIGNED(v26, 424+0x1A0)
- SAVE_VECTOR_UNALIGNED(v27, 424+0x1B0)
- SAVE_VECTOR_UNALIGNED(v28, 424+0x1C0)
- SAVE_VECTOR_UNALIGNED(v29, 424+0x1D0)
- SAVE_VECTOR_UNALIGNED(v30, 424+0x1E0)
- SAVE_VECTOR_UNALIGNED(v31, 424+0x1F0)
-
- li r3, 0 ; return UNW_ESUCCESS
- blr
-
-
-#elif __arm64__
-
-;
-; extern int unw_getcontext(unw_context_t* thread_state)
-;
-; On entry:
-; thread_state pointer is in x0
-;
- .p2align 2
-DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
- stp x0, x1, [x0, #0x000]
- stp x2, x3, [x0, #0x010]
- stp x4, x5, [x0, #0x020]
- stp x6, x7, [x0, #0x030]
- stp x8, x9, [x0, #0x040]
- stp x10,x11, [x0, #0x050]
- stp x12,x13, [x0, #0x060]
- stp x14,x15, [x0, #0x070]
- stp x16,x17, [x0, #0x080]
- stp x18,x19, [x0, #0x090]
- stp x20,x21, [x0, #0x0A0]
- stp x22,x23, [x0, #0x0B0]
- stp x24,x25, [x0, #0x0C0]
- stp x26,x27, [x0, #0x0D0]
- stp x28,fp, [x0, #0x0E0]
- str lr, [x0, #0x0F0]
- mov x1,sp
- str x1, [x0, #0x0F8]
- str lr, [x0, #0x100] ; store return address as pc
- ; skip cpsr
- stp d0, d1, [x0, #0x110]
- stp d2, d3, [x0, #0x120]
- stp d4, d5, [x0, #0x130]
- stp d6, d7, [x0, #0x140]
- stp d8, d9, [x0, #0x150]
- stp d10,d11, [x0, #0x160]
- stp d12,d13, [x0, #0x170]
- stp d14,d15, [x0, #0x180]
- stp d16,d17, [x0, #0x190]
- stp d18,d19, [x0, #0x1A0]
- stp d20,d21, [x0, #0x1B0]
- stp d22,d23, [x0, #0x1C0]
- stp d24,d25, [x0, #0x1D0]
- stp d26,d27, [x0, #0x1E0]
- stp d28,d29, [x0, #0x1F0]
- str d30, [x0, #0x200]
- str d31, [x0, #0x208]
- ldr x0, #0 ; return UNW_ESUCCESS
- ret
-
-#elif __arm__ && !__APPLE__
-
-#if !defined(__ARM_ARCH_ISA_ARM)
- .thumb
-#endif
-
-@
-@ extern int unw_getcontext(unw_context_t* thread_state)
-@
-@ On entry:
-@ thread_state pointer is in r0
-@
-@ Per EHABI #4.7 this only saves the core integer registers.
-@ EHABI #7.4.5 notes that in general all VRS registers should be restored
-@ however this is very hard to do for VFP registers because it is unknown
-@ to the library how many registers are implemented by the architecture.
-@ Instead, VFP registers are demand saved by logic external to unw_getcontext.
-@
- .p2align 2
-DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
-#if !defined(__ARM_ARCH_ISA_ARM)
- stm r0!, {r0-r7}
- mov r2, sp
- mov r3, lr
- str r2, [r0, #52]
- str r3, [r0, #56]
- str r3, [r0, #60] @ store return address as pc
-#else
- @ 32bit thumb-2 restrictions for stm:
- @ . the sp (r13) cannot be in the list
- @ . the pc (r15) cannot be in the list in an STM instruction
- stm r0, {r0-r12}
- str sp, [r0, #52]
- str lr, [r0, #56]
- str lr, [r0, #60] @ store return address as pc
-#endif
- mov r0, #0 @ return UNW_ESUCCESS
- JMP(lr)
-
-@
-@ static void libunwind::Registers_arm::saveVFPWithFSTMD(unw_fpreg_t* values)
-@
-@ On entry:
-@ values pointer is in r0
-@
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm16saveVFPWithFSTMDEPy)
-#if defined(__ARM_FP)
-#if __ARM_ARCH < 7
- stc p11, cr0, [r0], {0x20} @ fstmiad r0, {d0-d15}
-#else
- vstmia r0, {d0-d15}
-#endif
-#endif
- JMP(lr)
-
-@
-@ static void libunwind::Registers_arm::saveVFPWithFSTMX(unw_fpreg_t* values)
-@
-@ On entry:
-@ values pointer is in r0
-@
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm16saveVFPWithFSTMXEPy)
-#if defined(__ARM_FP)
-#if __ARM_ARCH < 7
- stc p11, cr0, [r0], {0x21} @ fstmiax r0, {d0-d15}
-#else
- vstmia r0, {d0-d15} @ fstmiax is deprecated in ARMv7+ and now behaves like vstmia
-#endif
-#endif
- JMP(lr)
-
-@
-@ static void libunwind::Registers_arm::saveVFPv3(unw_fpreg_t* values)
-@
-@ On entry:
-@ values pointer is in r0
-@
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm9saveVFPv3EPy)
-#if defined(__ARM_FP)
- @ VFP and iwMMX instructions are only available when compiling with the flags
- @ that enable them. We do not want to do that in the library (because we do not
- @ want the compiler to generate instructions that access those) but this is
- @ only accessed if the personality routine needs these registers. Use of
- @ these registers implies they are, actually, available on the target, so
- @ it's ok to execute.
- @ So, generate the instructions using the corresponding coprocessor mnemonic.
-#ifndef __ARM_NEON
- stcl p11, cr0, [r0], {0x20} @ vstm r0, {d16-d31}
-#else
- vstmia r0, {d16-d31}
-#endif
-#endif
- JMP(lr)
-
-@
-@ static void libunwind::Registers_arm::saveiWMMX(unw_fpreg_t* values)
-@
-@ On entry:
-@ values pointer is in r0
-@
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm9saveiWMMXEPy)
-#if (!defined(__ARM_ARCH_6M__) && !defined(__ARM_ARCH_6SM__)) || __ARM_WMMX
- 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
-#endif
- JMP(lr)
-
-@
-@ static void libunwind::Registers_arm::saveiWMMXControl(unw_uint32_t* values)
-@
-@ On entry:
-@ values pointer is in r0
-@
- .p2align 2
-DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm16saveiWMMXControlEPj)
-#if (!defined(__ARM_ARCH_6M__) && !defined(__ARM_ARCH_6SM__)) || __ARM_WMMX
- 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
-#endif
- JMP(lr)
-
-#endif
Index: Unwind/UnwindRegistersSave_saveVFPWithFSTMD.S
===================================================================
--- Unwind/UnwindRegistersSave_saveVFPWithFSTMD.S
+++ Unwind/UnwindRegistersSave_saveVFPWithFSTMD.S
@@ -0,0 +1,32 @@
+//===--------------- UnwindRegistersSave_saveVFPwithFSTMD.S ---------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@
+@ static void libunwind::Registers_arm::saveVFPWithFSTMD(unw_fpreg_t* values)
+@
+@ On entry:
+@ values pointer is in r0
+@
+ .p2align 2
+ .fpu vfpv2
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm16saveVFPWithFSTMDEPy)
+ vstmia r0, {d0-d15}
+ JMP(lr)
+
+#endif
Index: Unwind/UnwindRegistersSave_saveVFPWithFSTMX.S
===================================================================
--- Unwind/UnwindRegistersSave_saveVFPWithFSTMX.S
+++ Unwind/UnwindRegistersSave_saveVFPWithFSTMX.S
@@ -0,0 +1,32 @@
+//===------------------------ UnwindRegistersSave.S -----------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@
+@ static void libunwind::Registers_arm::saveVFPWithFSTMX(unw_fpreg_t* values)
+@
+@ On entry:
+@ values pointer is in r0
+@
+ .p2align 2
+ .fpu vfpv2
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm16saveVFPWithFSTMXEPy)
+ vstmia r0, {d0-d15} @ fstmiax is deprecated in ARMv7+ and now behaves like vstmia
+ JMP(lr)
+
+#endif
Index: Unwind/UnwindRegistersSave_saveVFPv3.S
===================================================================
--- Unwind/UnwindRegistersSave_saveVFPv3.S
+++ Unwind/UnwindRegistersSave_saveVFPv3.S
@@ -0,0 +1,39 @@
+//===------------------ UnwindRegistersSave_saveVFPv3.S -------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@
+@ static void libunwind::Registers_arm::saveVFPv3(unw_fpreg_t* values)
+@
+@ On entry:
+@ values pointer is in r0
+@
+ .p2align 2
+ .fpu vfpv3
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm9saveVFPv3EPy)
+ @ VFP and iwMMX instructions are only available when compiling with the flags
+ @ that enable them. We do not want to do that in the library (because we do not
+ @ want the compiler to generate instructions that access those) but this is
+ @ only accessed if the personality routine needs these registers. Use of
+ @ these registers implies they are, actually, available on the target, so
+ @ it's ok to execute.
+ @ So, generate the instructions using the corresponding coprocessor mnemonic.
+ vstmia r0, {d16-d31}
+ JMP(lr)
+
+#endif
Index: Unwind/UnwindRegistersSave_saveiWMMX.S
===================================================================
--- Unwind/UnwindRegistersSave_saveiWMMX.S
+++ Unwind/UnwindRegistersSave_saveiWMMX.S
@@ -0,0 +1,49 @@
+//===------------------ UnwindRegistersSave_saveiWMMX.S -------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@ Lie to the assembler to force it to let us use coprocessor mnemonics
+.arch armv5t
+
+@
+@ static void libunwind::Registers_arm::saveiWMMX(unw_fpreg_t* values)
+@
+@ On entry:
+@ values pointer is in r0
+@
+ .p2align 2
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm9saveiWMMXEPy)
+ 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
+ JMP(lr)
+
+#endif
Index: Unwind/UnwindRegistersSave_saveiWMMXControl.S
===================================================================
--- Unwind/UnwindRegistersSave_saveiWMMXControl.S
+++ Unwind/UnwindRegistersSave_saveiWMMXControl.S
@@ -0,0 +1,37 @@
+//===--------------- UnwindRegistersSave_saveiWMMXControl.S ---------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@ Lie to the assembler to force it to let us use coprocessor mnemonics
+.arch armv5t
+
+@
+@ static void libunwind::Registers_arm::saveiWMMXControl(unw_uint32_t* values)
+@
+@ On entry:
+@ values pointer is in r0
+@
+ .p2align 2
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm16saveiWMMXControlEPj)
+ 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
+ JMP(lr)
+
+#endif
Index: Unwind/UnwindRegistersSave_unw_getcontext.S
===================================================================
--- Unwind/UnwindRegistersSave_unw_getcontext.S
+++ Unwind/UnwindRegistersSave_unw_getcontext.S
@@ -0,0 +1,322 @@
+//===------------------------ UnwindRegistersSave.S -----------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "assembly.h"
+
+ .text
+
+#if __i386__
+
+#
+# extern int unw_getcontext(unw_context_t* thread_state)
+#
+# On entry:
+# + +
+# +-----------------------+
+# + thread_state pointer +
+# +-----------------------+
+# + return address +
+# +-----------------------+ <-- SP
+# + +
+#
+DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
+ push %eax
+ movl 8(%esp), %eax
+ movl %ebx, 4(%eax)
+ movl %ecx, 8(%eax)
+ movl %edx, 12(%eax)
+ movl %edi, 16(%eax)
+ movl %esi, 20(%eax)
+ movl %ebp, 24(%eax)
+ movl %esp, %edx
+ addl $8, %edx
+ movl %edx, 28(%eax) # store what sp was at call site as esp
+ # skip ss
+ # skip eflags
+ movl 4(%esp), %edx
+ movl %edx, 40(%eax) # store return address as eip
+ # skip cs
+ # skip ds
+ # skip es
+ # skip fs
+ # skip gs
+ movl (%esp), %edx
+ movl %edx, (%eax) # store original eax
+ popl %eax
+ xorl %eax, %eax # return UNW_ESUCCESS
+ ret
+
+#elif __x86_64__
+
+#
+# extern int unw_getcontext(unw_context_t* thread_state)
+#
+# On entry:
+# thread_state pointer is in rdi
+#
+DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
+ movq %rax, (%rdi)
+ movq %rbx, 8(%rdi)
+ movq %rcx, 16(%rdi)
+ movq %rdx, 24(%rdi)
+ movq %rdi, 32(%rdi)
+ movq %rsi, 40(%rdi)
+ movq %rbp, 48(%rdi)
+ movq %rsp, 56(%rdi)
+ addq $8, 56(%rdi)
+ movq %r8, 64(%rdi)
+ movq %r9, 72(%rdi)
+ movq %r10, 80(%rdi)
+ movq %r11, 88(%rdi)
+ movq %r12, 96(%rdi)
+ movq %r13,104(%rdi)
+ movq %r14,112(%rdi)
+ movq %r15,120(%rdi)
+ movq (%rsp),%rsi
+ movq %rsi,128(%rdi) # store return address as rip
+ # skip rflags
+ # skip cs
+ # skip fs
+ # skip gs
+ xorl %eax, %eax # return UNW_ESUCCESS
+ ret
+
+#elif __ppc__
+
+;
+; extern int unw_getcontext(unw_context_t* thread_state)
+;
+; On entry:
+; thread_state pointer is in r3
+;
+DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
+ stw r0, 8(r3)
+ mflr r0
+ stw r0, 0(r3) ; store lr as ssr0
+ stw r1, 12(r3)
+ stw r2, 16(r3)
+ stw r3, 20(r3)
+ stw r4, 24(r3)
+ stw r5, 28(r3)
+ stw r6, 32(r3)
+ stw r7, 36(r3)
+ stw r8, 40(r3)
+ stw r9, 44(r3)
+ stw r10, 48(r3)
+ stw r11, 52(r3)
+ stw r12, 56(r3)
+ stw r13, 60(r3)
+ stw r14, 64(r3)
+ stw r15, 68(r3)
+ stw r16, 72(r3)
+ stw r17, 76(r3)
+ stw r18, 80(r3)
+ stw r19, 84(r3)
+ stw r20, 88(r3)
+ stw r21, 92(r3)
+ stw r22, 96(r3)
+ stw r23,100(r3)
+ stw r24,104(r3)
+ stw r25,108(r3)
+ stw r26,112(r3)
+ stw r27,116(r3)
+ stw r28,120(r3)
+ stw r29,124(r3)
+ stw r30,128(r3)
+ stw r31,132(r3)
+
+ ; save VRSave register
+ mfspr r0,256
+ stw r0,156(r3)
+ ; save CR registers
+ mfcr r0
+ stw r0,136(r3)
+ ; save CTR register
+ mfctr r0
+ stw r0,148(r3)
+
+ ; save float registers
+ stfd f0, 160(r3)
+ stfd f1, 168(r3)
+ stfd f2, 176(r3)
+ stfd f3, 184(r3)
+ stfd f4, 192(r3)
+ stfd f5, 200(r3)
+ stfd f6, 208(r3)
+ stfd f7, 216(r3)
+ stfd f8, 224(r3)
+ stfd f9, 232(r3)
+ stfd f10,240(r3)
+ stfd f11,248(r3)
+ stfd f12,256(r3)
+ stfd f13,264(r3)
+ stfd f14,272(r3)
+ stfd f15,280(r3)
+ stfd f16,288(r3)
+ stfd f17,296(r3)
+ stfd f18,304(r3)
+ stfd f19,312(r3)
+ stfd f20,320(r3)
+ stfd f21,328(r3)
+ stfd f22,336(r3)
+ stfd f23,344(r3)
+ stfd f24,352(r3)
+ stfd f25,360(r3)
+ stfd f26,368(r3)
+ stfd f27,376(r3)
+ stfd f28,384(r3)
+ stfd f29,392(r3)
+ stfd f30,400(r3)
+ stfd f31,408(r3)
+
+
+ ; save vector registers
+
+ subi r4,r1,16
+ rlwinm r4,r4,0,0,27 ; mask low 4-bits
+ ; r4 is now a 16-byte aligned pointer into the red zone
+
+#define SAVE_VECTOR_UNALIGNED(_vec, _offset) \
+ stvx _vec,0,r4 @\
+ lwz r5, 0(r4) @\
+ stw r5, _offset(r3) @\
+ lwz r5, 4(r4) @\
+ stw r5, _offset+4(r3) @\
+ lwz r5, 8(r4) @\
+ stw r5, _offset+8(r3) @\
+ lwz r5, 12(r4) @\
+ stw r5, _offset+12(r3)
+
+ SAVE_VECTOR_UNALIGNED( v0, 424+0x000)
+ SAVE_VECTOR_UNALIGNED( v1, 424+0x010)
+ SAVE_VECTOR_UNALIGNED( v2, 424+0x020)
+ SAVE_VECTOR_UNALIGNED( v3, 424+0x030)
+ SAVE_VECTOR_UNALIGNED( v4, 424+0x040)
+ SAVE_VECTOR_UNALIGNED( v5, 424+0x050)
+ SAVE_VECTOR_UNALIGNED( v6, 424+0x060)
+ SAVE_VECTOR_UNALIGNED( v7, 424+0x070)
+ SAVE_VECTOR_UNALIGNED( v8, 424+0x080)
+ SAVE_VECTOR_UNALIGNED( v9, 424+0x090)
+ SAVE_VECTOR_UNALIGNED(v10, 424+0x0A0)
+ SAVE_VECTOR_UNALIGNED(v11, 424+0x0B0)
+ SAVE_VECTOR_UNALIGNED(v12, 424+0x0C0)
+ SAVE_VECTOR_UNALIGNED(v13, 424+0x0D0)
+ SAVE_VECTOR_UNALIGNED(v14, 424+0x0E0)
+ SAVE_VECTOR_UNALIGNED(v15, 424+0x0F0)
+ SAVE_VECTOR_UNALIGNED(v16, 424+0x100)
+ SAVE_VECTOR_UNALIGNED(v17, 424+0x110)
+ SAVE_VECTOR_UNALIGNED(v18, 424+0x120)
+ SAVE_VECTOR_UNALIGNED(v19, 424+0x130)
+ SAVE_VECTOR_UNALIGNED(v20, 424+0x140)
+ SAVE_VECTOR_UNALIGNED(v21, 424+0x150)
+ SAVE_VECTOR_UNALIGNED(v22, 424+0x160)
+ SAVE_VECTOR_UNALIGNED(v23, 424+0x170)
+ SAVE_VECTOR_UNALIGNED(v24, 424+0x180)
+ SAVE_VECTOR_UNALIGNED(v25, 424+0x190)
+ SAVE_VECTOR_UNALIGNED(v26, 424+0x1A0)
+ SAVE_VECTOR_UNALIGNED(v27, 424+0x1B0)
+ SAVE_VECTOR_UNALIGNED(v28, 424+0x1C0)
+ SAVE_VECTOR_UNALIGNED(v29, 424+0x1D0)
+ SAVE_VECTOR_UNALIGNED(v30, 424+0x1E0)
+ SAVE_VECTOR_UNALIGNED(v31, 424+0x1F0)
+
+ li r3, 0 ; return UNW_ESUCCESS
+ blr
+
+
+#elif __arm64__
+
+;
+; extern int unw_getcontext(unw_context_t* thread_state)
+;
+; On entry:
+; thread_state pointer is in x0
+;
+ .p2align 2
+DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
+ stp x0, x1, [x0, #0x000]
+ stp x2, x3, [x0, #0x010]
+ stp x4, x5, [x0, #0x020]
+ stp x6, x7, [x0, #0x030]
+ stp x8, x9, [x0, #0x040]
+ stp x10,x11, [x0, #0x050]
+ stp x12,x13, [x0, #0x060]
+ stp x14,x15, [x0, #0x070]
+ stp x16,x17, [x0, #0x080]
+ stp x18,x19, [x0, #0x090]
+ stp x20,x21, [x0, #0x0A0]
+ stp x22,x23, [x0, #0x0B0]
+ stp x24,x25, [x0, #0x0C0]
+ stp x26,x27, [x0, #0x0D0]
+ stp x28,fp, [x0, #0x0E0]
+ str lr, [x0, #0x0F0]
+ mov x1,sp
+ str x1, [x0, #0x0F8]
+ str lr, [x0, #0x100] ; store return address as pc
+ ; skip cpsr
+ stp d0, d1, [x0, #0x110]
+ stp d2, d3, [x0, #0x120]
+ stp d4, d5, [x0, #0x130]
+ stp d6, d7, [x0, #0x140]
+ stp d8, d9, [x0, #0x150]
+ stp d10,d11, [x0, #0x160]
+ stp d12,d13, [x0, #0x170]
+ stp d14,d15, [x0, #0x180]
+ stp d16,d17, [x0, #0x190]
+ stp d18,d19, [x0, #0x1A0]
+ stp d20,d21, [x0, #0x1B0]
+ stp d22,d23, [x0, #0x1C0]
+ stp d24,d25, [x0, #0x1D0]
+ stp d26,d27, [x0, #0x1E0]
+ stp d28,d29, [x0, #0x1F0]
+ str d30, [x0, #0x200]
+ str d31, [x0, #0x208]
+ ldr x0, #0 ; return UNW_ESUCCESS
+ ret
+
+#elif __arm__ && !__APPLE__
+
+#if !defined(__ARM_ARCH_ISA_ARM)
+ .thumb
+#endif
+
+@
+@ extern int unw_getcontext(unw_context_t* thread_state)
+@
+@ On entry:
+@ thread_state pointer is in r0
+@
+@ Per EHABI #4.7 this only saves the core integer registers.
+@ EHABI #7.4.5 notes that in general all VRS registers should be restored
+@ however this is very hard to do for VFP registers because it is unknown
+@ to the library how many registers are implemented by the architecture.
+@ Instead, VFP registers are demand saved by logic external to unw_getcontext.
+@
+ .p2align 2
+DEFINE_LIBUNWIND_FUNCTION(unw_getcontext)
+#if !defined(__ARM_ARCH_ISA_ARM)
+ stm r0!, {r0-r7}
+ mov r2, sp
+ mov r3, lr
+ str r2, [r0, #52]
+ str r3, [r0, #56]
+ str r3, [r0, #60] @ store return address as pc
+#else
+ @ 32bit thumb-2 restrictions for stm:
+ @ . the sp (r13) cannot be in the list
+ @ . the pc (r15) cannot be in the list in an STM instruction
+ stm r0, {r0-r12}
+ str sp, [r0, #52]
+ str lr, [r0, #56]
+ str lr, [r0, #60] @ store return address as pc
+#endif
+ mov r0, #0 @ return UNW_ESUCCESS
+ JMP(lr)
+
+#endif
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