//===-------------------- 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 !defined(__USING_SJLJ_EXCEPTIONS__) #if defined(__i386__) DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_x866jumptoEv) # # void libunwind::Registers_x86::jumpto() # #if defined(_WIN32) # On windows, the 'this' pointer is passed in ecx instead of on the stack movl %ecx, %eax #else # On entry: # + + # +-----------------------+ # + thread_state pointer + # +-----------------------+ # + return address + # +-----------------------+ <-- SP # + + movl 4(%esp), %eax #endif # 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 defined(__x86_64__) DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind16Registers_x86_646jumptoEv) # # void libunwind::Registers_x86_64::jumpto() # #if defined(_WIN64) # On entry, thread_state pointer is in rcx; move it into rdi # to share restore code below. Since this routine restores and # overwrites all registers, we can use the same registers for # pointers and temporaries as on unix even though win64 normally # mustn't clobber some of them. movq %rcx, %rdi #else # On entry, thread_state pointer is in rdi #endif 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 #if defined(_WIN64) movdqu 176(%rdi),%xmm0 movdqu 192(%rdi),%xmm1 movdqu 208(%rdi),%xmm2 movdqu 224(%rdi),%xmm3 movdqu 240(%rdi),%xmm4 movdqu 256(%rdi),%xmm5 movdqu 272(%rdi),%xmm6 movdqu 288(%rdi),%xmm7 movdqu 304(%rdi),%xmm8 movdqu 320(%rdi),%xmm9 movdqu 336(%rdi),%xmm10 movdqu 352(%rdi),%xmm11 movdqu 368(%rdi),%xmm12 movdqu 384(%rdi),%xmm13 movdqu 400(%rdi),%xmm14 movdqu 416(%rdi),%xmm15 #endif movq 56(%rdi), %rsp # cut back rsp to new location pop %rdi # rdi was saved here earlier ret # rip was saved here #elif defined(__powerpc64__) DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind15Registers_ppc646jumptoEv) // // void libunwind::Registers_ppc64::jumpto() // // On entry: // thread_state pointer is in r3 // // load register (GPR) #define PPC64_LR(n) \ ld %r##n, (8 * (n + 2))(%r3) // restore integral registers // skip r0 for now // skip r1 for now PPC64_LR(2) // skip r3 for now // skip r4 for now // skip r5 for now PPC64_LR(6) PPC64_LR(7) PPC64_LR(8) PPC64_LR(9) PPC64_LR(10) PPC64_LR(11) PPC64_LR(12) PPC64_LR(13) PPC64_LR(14) PPC64_LR(15) PPC64_LR(16) PPC64_LR(17) PPC64_LR(18) PPC64_LR(19) PPC64_LR(20) PPC64_LR(21) PPC64_LR(22) PPC64_LR(23) PPC64_LR(24) PPC64_LR(25) PPC64_LR(26) PPC64_LR(27) PPC64_LR(28) PPC64_LR(29) PPC64_LR(30) PPC64_LR(31) #ifdef PPC64_HAS_VMX // restore VS registers // (note that this also restores floating point registers and V registers, // because part of VS is mapped to these registers) addi %r4, %r3, PPC64_OFFS_FP // load VS register #define PPC64_LVS(n) \ lxvd2x %vs##n, 0, %r4 ;\ addi %r4, %r4, 16 // restore the first 32 VS regs (and also all floating point regs) PPC64_LVS(0) PPC64_LVS(1) PPC64_LVS(2) PPC64_LVS(3) PPC64_LVS(4) PPC64_LVS(5) PPC64_LVS(6) PPC64_LVS(7) PPC64_LVS(8) PPC64_LVS(9) PPC64_LVS(10) PPC64_LVS(11) PPC64_LVS(12) PPC64_LVS(13) PPC64_LVS(14) PPC64_LVS(15) PPC64_LVS(16) PPC64_LVS(17) PPC64_LVS(18) PPC64_LVS(19) PPC64_LVS(20) PPC64_LVS(21) PPC64_LVS(22) PPC64_LVS(23) PPC64_LVS(24) PPC64_LVS(25) PPC64_LVS(26) PPC64_LVS(27) PPC64_LVS(28) PPC64_LVS(29) PPC64_LVS(30) PPC64_LVS(31) // use VRSAVE to conditionally restore the remaining VS regs, // that are where the V regs are mapped ld %r5, PPC64_OFFS_VRSAVE(%r3) // test VRsave cmpwi %r5, 0 beq Lnovec // conditionally load VS #define PPC64_CLVS_BOTTOM(n) \ beq Ldone##n ;\ addi %r4, %r3, PPC64_OFFS_FP + n * 16 ;\ lxvd2x %vs##n, 0, %r4 ;\ Ldone##n: #define PPC64_CLVSl(n) \ andis. %r0, %r5, (1<<(47-n)) ;\ PPC64_CLVS_BOTTOM(n) #define PPC64_CLVSh(n) \ andi. %r0, %r5, (1<<(63-n)) ;\ PPC64_CLVS_BOTTOM(n) PPC64_CLVSl(32) PPC64_CLVSl(33) PPC64_CLVSl(34) PPC64_CLVSl(35) PPC64_CLVSl(36) PPC64_CLVSl(37) PPC64_CLVSl(38) PPC64_CLVSl(39) PPC64_CLVSl(40) PPC64_CLVSl(41) PPC64_CLVSl(42) PPC64_CLVSl(43) PPC64_CLVSl(44) PPC64_CLVSl(45) PPC64_CLVSl(46) PPC64_CLVSl(47) PPC64_CLVSh(48) PPC64_CLVSh(49) PPC64_CLVSh(50) PPC64_CLVSh(51) PPC64_CLVSh(52) PPC64_CLVSh(53) PPC64_CLVSh(54) PPC64_CLVSh(55) PPC64_CLVSh(56) PPC64_CLVSh(57) PPC64_CLVSh(58) PPC64_CLVSh(59) PPC64_CLVSh(60) PPC64_CLVSh(61) PPC64_CLVSh(62) PPC64_CLVSh(63) #else // load FP register #define PPC64_LF(n) \ lfd %f##n, (PPC64_OFFS_FP + n * 16)(%r3) // restore float registers PPC64_LF(0) PPC64_LF(1) PPC64_LF(2) PPC64_LF(3) PPC64_LF(4) PPC64_LF(5) PPC64_LF(6) PPC64_LF(7) PPC64_LF(8) PPC64_LF(9) PPC64_LF(10) PPC64_LF(11) PPC64_LF(12) PPC64_LF(13) PPC64_LF(14) PPC64_LF(15) PPC64_LF(16) PPC64_LF(17) PPC64_LF(18) PPC64_LF(19) PPC64_LF(20) PPC64_LF(21) PPC64_LF(22) PPC64_LF(23) PPC64_LF(24) PPC64_LF(25) PPC64_LF(26) PPC64_LF(27) PPC64_LF(28) PPC64_LF(29) PPC64_LF(30) PPC64_LF(31) // restore vector registers if any are in use ld %r5, PPC64_OFFS_VRSAVE(%r3) // test VRsave cmpwi %r5, 0 beq Lnovec subi %r4, %r1, 16 // r4 is now a 16-byte aligned pointer into the red zone // the _vectorScalarRegisters may not be 16-byte aligned // so copy via red zone temp buffer #define PPC64_CLV_UNALIGNED_BOTTOM(n) \ beq Ldone##n ;\ ld %r0, (PPC64_OFFS_V + n * 16)(%r3) ;\ std %r0, 0(%r4) ;\ ld %r0, (PPC64_OFFS_V + n * 16 + 8)(%r3) ;\ std %r0, 8(%r4) ;\ lvx %v##n, 0, %r4 ;\ Ldone ## n: #define PPC64_CLV_UNALIGNEDl(n) \ andis. %r0, %r5, (1<<(15-n)) ;\ PPC64_CLV_UNALIGNED_BOTTOM(n) #define PPC64_CLV_UNALIGNEDh(n) \ andi. %r0, %r5, (1<<(31-n)) ;\ PPC64_CLV_UNALIGNED_BOTTOM(n) PPC64_CLV_UNALIGNEDl(0) PPC64_CLV_UNALIGNEDl(1) PPC64_CLV_UNALIGNEDl(2) PPC64_CLV_UNALIGNEDl(3) PPC64_CLV_UNALIGNEDl(4) PPC64_CLV_UNALIGNEDl(5) PPC64_CLV_UNALIGNEDl(6) PPC64_CLV_UNALIGNEDl(7) PPC64_CLV_UNALIGNEDl(8) PPC64_CLV_UNALIGNEDl(9) PPC64_CLV_UNALIGNEDl(10) PPC64_CLV_UNALIGNEDl(11) PPC64_CLV_UNALIGNEDl(12) PPC64_CLV_UNALIGNEDl(13) PPC64_CLV_UNALIGNEDl(14) PPC64_CLV_UNALIGNEDl(15) PPC64_CLV_UNALIGNEDh(16) PPC64_CLV_UNALIGNEDh(17) PPC64_CLV_UNALIGNEDh(18) PPC64_CLV_UNALIGNEDh(19) PPC64_CLV_UNALIGNEDh(20) PPC64_CLV_UNALIGNEDh(21) PPC64_CLV_UNALIGNEDh(22) PPC64_CLV_UNALIGNEDh(23) PPC64_CLV_UNALIGNEDh(24) PPC64_CLV_UNALIGNEDh(25) PPC64_CLV_UNALIGNEDh(26) PPC64_CLV_UNALIGNEDh(27) PPC64_CLV_UNALIGNEDh(28) PPC64_CLV_UNALIGNEDh(29) PPC64_CLV_UNALIGNEDh(30) PPC64_CLV_UNALIGNEDh(31) #endif Lnovec: ld %r0, PPC64_OFFS_CR(%r3) mtcr %r0 ld %r0, PPC64_OFFS_SRR0(%r3) mtctr %r0 PPC64_LR(0) PPC64_LR(5) PPC64_LR(4) PPC64_LR(1) PPC64_LR(3) bctr #elif defined(__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 defined(__arm64__) || defined(__aarch64__) // // 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,x29, [x0, #0x0E0] ldr x30, [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 x30 // jump to pc #elif defined(__arm__) && !defined(__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) && __ARM_ARCH_ISA_THUMB == 1 @ r8-r11: ldm into r1-r4, then mov to r8-r11 adds r0, #0x20 ldm r0!, {r1-r4} subs r0, #0x30 mov r8, r1 mov r9, r2 mov r10, r3 mov r11, r4 @ r12 does not need loading, it it the intra-procedure-call scratch register ldr r2, [r0, #0x34] ldr r3, [r0, #0x3c] 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 #if defined(__ELF__) .fpu vfpv3-d16 #endif 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) @ @ static void libunwind::Registers_arm::restoreVFPWithFLDMX(unw_fpreg_t* values) @ @ On entry: @ values pointer is in r0 @ .p2align 2 #if defined(__ELF__) .fpu vfpv3-d16 #endif DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm19restoreVFPWithFLDMXEPy) vldmia r0, {d0-d15} @ fldmiax is deprecated in ARMv7+ and now behaves like vldmia JMP(lr) @ @ static void libunwind::Registers_arm::restoreVFPv3(unw_fpreg_t* values) @ @ On entry: @ values pointer is in r0 @ .p2align 2 #if defined(__ELF__) .fpu vfpv3 #endif DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind13Registers_arm12restoreVFPv3EPy) vldmia r0, {d16-d31} JMP(lr) #if defined(__ARM_WMMX) @ @ static void libunwind::Registers_arm::restoreiWMMX(unw_fpreg_t* values) @ @ On entry: @ values pointer is in r0 @ .p2align 2 #if defined(__ELF__) .arch armv5te #endif 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) @ @ static void libunwind::Registers_arm::restoreiWMMXControl(unw_uint32_t* values) @ @ On entry: @ values pointer is in r0 @ .p2align 2 #if defined(__ELF__) .arch armv5te #endif 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 #elif defined(__or1k__) DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind14Registers_or1k6jumptoEv) # # void libunwind::Registers_or1k::jumpto() # # On entry: # thread_state pointer is in r3 # # restore integral registerrs l.lwz r0, 0(r3) l.lwz r1, 4(r3) l.lwz r2, 8(r3) # skip r3 for now l.lwz r4, 16(r3) l.lwz r5, 20(r3) l.lwz r6, 24(r3) l.lwz r7, 28(r3) l.lwz r8, 32(r3) l.lwz r9, 36(r3) l.lwz r10, 40(r3) l.lwz r11, 44(r3) l.lwz r12, 48(r3) l.lwz r13, 52(r3) l.lwz r14, 56(r3) l.lwz r15, 60(r3) l.lwz r16, 64(r3) l.lwz r17, 68(r3) l.lwz r18, 72(r3) l.lwz r19, 76(r3) l.lwz r20, 80(r3) l.lwz r21, 84(r3) l.lwz r22, 88(r3) l.lwz r23, 92(r3) l.lwz r24, 96(r3) l.lwz r25,100(r3) l.lwz r26,104(r3) l.lwz r27,108(r3) l.lwz r28,112(r3) l.lwz r29,116(r3) l.lwz r30,120(r3) l.lwz r31,124(r3) # at last, restore r3 l.lwz r3, 12(r3) # jump to pc l.jr r9 l.nop #elif defined(__mips__) && defined(_ABIO32) && _MIPS_SIM == _ABIO32 // // void libunwind::Registers_mips_o32::jumpto() // // On entry: // thread state pointer is in a0 ($4) // DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind18Registers_mips_o326jumptoEv) .set push .set noat .set noreorder .set nomacro #ifdef __mips_hard_float #if __mips_fpr == 32 ldc1 $f0, (4 * 36 + 8 * 0)($4) ldc1 $f2, (4 * 36 + 8 * 2)($4) ldc1 $f4, (4 * 36 + 8 * 4)($4) ldc1 $f6, (4 * 36 + 8 * 6)($4) ldc1 $f8, (4 * 36 + 8 * 8)($4) ldc1 $f10, (4 * 36 + 8 * 10)($4) ldc1 $f12, (4 * 36 + 8 * 12)($4) ldc1 $f14, (4 * 36 + 8 * 14)($4) ldc1 $f16, (4 * 36 + 8 * 16)($4) ldc1 $f18, (4 * 36 + 8 * 18)($4) ldc1 $f20, (4 * 36 + 8 * 20)($4) ldc1 $f22, (4 * 36 + 8 * 22)($4) ldc1 $f24, (4 * 36 + 8 * 24)($4) ldc1 $f26, (4 * 36 + 8 * 26)($4) ldc1 $f28, (4 * 36 + 8 * 28)($4) ldc1 $f30, (4 * 36 + 8 * 30)($4) #else ldc1 $f0, (4 * 36 + 8 * 0)($4) ldc1 $f1, (4 * 36 + 8 * 1)($4) ldc1 $f2, (4 * 36 + 8 * 2)($4) ldc1 $f3, (4 * 36 + 8 * 3)($4) ldc1 $f4, (4 * 36 + 8 * 4)($4) ldc1 $f5, (4 * 36 + 8 * 5)($4) ldc1 $f6, (4 * 36 + 8 * 6)($4) ldc1 $f7, (4 * 36 + 8 * 7)($4) ldc1 $f8, (4 * 36 + 8 * 8)($4) ldc1 $f9, (4 * 36 + 8 * 9)($4) ldc1 $f10, (4 * 36 + 8 * 10)($4) ldc1 $f11, (4 * 36 + 8 * 11)($4) ldc1 $f12, (4 * 36 + 8 * 12)($4) ldc1 $f13, (4 * 36 + 8 * 13)($4) ldc1 $f14, (4 * 36 + 8 * 14)($4) ldc1 $f15, (4 * 36 + 8 * 15)($4) ldc1 $f16, (4 * 36 + 8 * 16)($4) ldc1 $f17, (4 * 36 + 8 * 17)($4) ldc1 $f18, (4 * 36 + 8 * 18)($4) ldc1 $f19, (4 * 36 + 8 * 19)($4) ldc1 $f20, (4 * 36 + 8 * 20)($4) ldc1 $f21, (4 * 36 + 8 * 21)($4) ldc1 $f22, (4 * 36 + 8 * 22)($4) ldc1 $f23, (4 * 36 + 8 * 23)($4) ldc1 $f24, (4 * 36 + 8 * 24)($4) ldc1 $f25, (4 * 36 + 8 * 25)($4) ldc1 $f26, (4 * 36 + 8 * 26)($4) ldc1 $f27, (4 * 36 + 8 * 27)($4) ldc1 $f28, (4 * 36 + 8 * 28)($4) ldc1 $f29, (4 * 36 + 8 * 29)($4) ldc1 $f30, (4 * 36 + 8 * 30)($4) ldc1 $f31, (4 * 36 + 8 * 31)($4) #endif #endif // restore hi and lo lw $8, (4 * 33)($4) mthi $8 lw $8, (4 * 34)($4) mtlo $8 // r0 is zero lw $1, (4 * 1)($4) lw $2, (4 * 2)($4) lw $3, (4 * 3)($4) // skip a0 for now lw $5, (4 * 5)($4) lw $6, (4 * 6)($4) lw $7, (4 * 7)($4) lw $8, (4 * 8)($4) lw $9, (4 * 9)($4) lw $10, (4 * 10)($4) lw $11, (4 * 11)($4) lw $12, (4 * 12)($4) lw $13, (4 * 13)($4) lw $14, (4 * 14)($4) lw $15, (4 * 15)($4) lw $16, (4 * 16)($4) lw $17, (4 * 17)($4) lw $18, (4 * 18)($4) lw $19, (4 * 19)($4) lw $20, (4 * 20)($4) lw $21, (4 * 21)($4) lw $22, (4 * 22)($4) lw $23, (4 * 23)($4) lw $24, (4 * 24)($4) lw $25, (4 * 25)($4) lw $26, (4 * 26)($4) lw $27, (4 * 27)($4) lw $28, (4 * 28)($4) lw $29, (4 * 29)($4) lw $30, (4 * 30)($4) // load new pc into ra lw $31, (4 * 32)($4) // jump to ra, load a0 in the delay slot jr $31 lw $4, (4 * 4)($4) .set pop #elif defined(__mips64) // // void libunwind::Registers_mips_newabi::jumpto() // // On entry: // thread state pointer is in a0 ($4) // DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind21Registers_mips_newabi6jumptoEv) .set push .set noat .set noreorder .set nomacro #ifdef __mips_hard_float ldc1 $f0, (8 * 35)($4) ldc1 $f1, (8 * 36)($4) ldc1 $f2, (8 * 37)($4) ldc1 $f3, (8 * 38)($4) ldc1 $f4, (8 * 39)($4) ldc1 $f5, (8 * 40)($4) ldc1 $f6, (8 * 41)($4) ldc1 $f7, (8 * 42)($4) ldc1 $f8, (8 * 43)($4) ldc1 $f9, (8 * 44)($4) ldc1 $f10, (8 * 45)($4) ldc1 $f11, (8 * 46)($4) ldc1 $f12, (8 * 47)($4) ldc1 $f13, (8 * 48)($4) ldc1 $f14, (8 * 49)($4) ldc1 $f15, (8 * 50)($4) ldc1 $f16, (8 * 51)($4) ldc1 $f17, (8 * 52)($4) ldc1 $f18, (8 * 53)($4) ldc1 $f19, (8 * 54)($4) ldc1 $f20, (8 * 55)($4) ldc1 $f21, (8 * 56)($4) ldc1 $f22, (8 * 57)($4) ldc1 $f23, (8 * 58)($4) ldc1 $f24, (8 * 59)($4) ldc1 $f25, (8 * 60)($4) ldc1 $f26, (8 * 61)($4) ldc1 $f27, (8 * 62)($4) ldc1 $f28, (8 * 63)($4) ldc1 $f29, (8 * 64)($4) ldc1 $f30, (8 * 65)($4) ldc1 $f31, (8 * 66)($4) #endif // restore hi and lo ld $8, (8 * 33)($4) mthi $8 ld $8, (8 * 34)($4) mtlo $8 // r0 is zero ld $1, (8 * 1)($4) ld $2, (8 * 2)($4) ld $3, (8 * 3)($4) // skip a0 for now ld $5, (8 * 5)($4) ld $6, (8 * 6)($4) ld $7, (8 * 7)($4) ld $8, (8 * 8)($4) ld $9, (8 * 9)($4) ld $10, (8 * 10)($4) ld $11, (8 * 11)($4) ld $12, (8 * 12)($4) ld $13, (8 * 13)($4) ld $14, (8 * 14)($4) ld $15, (8 * 15)($4) ld $16, (8 * 16)($4) ld $17, (8 * 17)($4) ld $18, (8 * 18)($4) ld $19, (8 * 19)($4) ld $20, (8 * 20)($4) ld $21, (8 * 21)($4) ld $22, (8 * 22)($4) ld $23, (8 * 23)($4) ld $24, (8 * 24)($4) ld $25, (8 * 25)($4) ld $26, (8 * 26)($4) ld $27, (8 * 27)($4) ld $28, (8 * 28)($4) ld $29, (8 * 29)($4) ld $30, (8 * 30)($4) // load new pc into ra ld $31, (8 * 32)($4) // jump to ra, load a0 in the delay slot jr $31 ld $4, (8 * 4)($4) .set pop #endif #endif /* !defined(__USING_SJLJ_EXCEPTIONS__) */ NO_EXEC_STACK_DIRECTIVE