/* Copyright Oliver Kowalke 2009. Copyright Thomas Sailer 2013. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) */ /**************************************************************************************** * * * ---------------------------------------------------------------------------------- * | 0 | 1 | | * ---------------------------------------------------------------------------------- * | 0x0 | 0x4 | | * ---------------------------------------------------------------------------------- * | | | * ---------------------------------------------------------------------------------- * ---------------------------------------------------------------------------------- * | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | * ---------------------------------------------------------------------------------- * | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | 0x20 | 0x24 | * ---------------------------------------------------------------------------------- * | SEE registers (XMM6-XMM15) | * ---------------------------------------------------------------------------------- * ---------------------------------------------------------------------------------- * | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | * ---------------------------------------------------------------------------------- * | 0x28 | 0x2c | 0x30 | 0x34 | 0x38 | 0x3c | 0x40 | 0x44 | * ---------------------------------------------------------------------------------- * | SEE registers (XMM6-XMM15) | * ---------------------------------------------------------------------------------- * ---------------------------------------------------------------------------------- * | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | * ---------------------------------------------------------------------------------- * | 0x48 | 0x4c | 0x50 | 0x54 | 0x58 | 0x5c | 0x60 | 0x64 | * ---------------------------------------------------------------------------------- * | SEE registers (XMM6-XMM15) | * ---------------------------------------------------------------------------------- * ---------------------------------------------------------------------------------- * | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | * ---------------------------------------------------------------------------------- * | 0x68 | 0x6c | 0x70 | 0x74 | 0x78 | 0x7c | 0x80 | 0x84 | * ---------------------------------------------------------------------------------- * | SEE registers (XMM6-XMM15) | * ---------------------------------------------------------------------------------- * ---------------------------------------------------------------------------------- * | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | * ---------------------------------------------------------------------------------- * | 0x88 | 0x8c | 0x90 | 0x94 | 0x98 | 0x9c | 0xa0 | 0xa4 | * ---------------------------------------------------------------------------------- * | SEE registers (XMM6-XMM15) | * ---------------------------------------------------------------------------------- * ---------------------------------------------------------------------------------- * | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | * ---------------------------------------------------------------------------------- * | 0xa8 | 0xac | 0xb0 | 0xb4 | 0xb8 | 0xbc | 0xc0 | 0xc4 | * ---------------------------------------------------------------------------------- * | fc_mxcsr|fc_x87_cw| | fbr_strg | fc_dealloc | * ---------------------------------------------------------------------------------- * ---------------------------------------------------------------------------------- * | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | * ---------------------------------------------------------------------------------- * | 0xc8 | 0xcc | 0xd0 | 0xd4 | 0xd8 | 0xdc | 0xe0 | 0xe4 | * ---------------------------------------------------------------------------------- * | limit | base | R12 | R13 | * ---------------------------------------------------------------------------------- * ---------------------------------------------------------------------------------- * | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | * ---------------------------------------------------------------------------------- * | 0xe8 | 0xec | 0xf0 | 0xf4 | 0xf8 | 0xfc | 0x100 | 0x104 | * ---------------------------------------------------------------------------------- * | R14 | R15 | RDI | RSI | * ---------------------------------------------------------------------------------- * ---------------------------------------------------------------------------------- * | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | * ---------------------------------------------------------------------------------- * | 0x108 | 0x10c | 0x110 | 0x114 | 0x118 | 0x11c | 0x120 | 0x124 | * ---------------------------------------------------------------------------------- * | RBX | RBP | RIP | EXIT | * ---------------------------------------------------------------------------------- * * * *************************************************************************************/ .file "jump_x86_64_ms_pe_gas.asm" .text .p2align 4,,15 .globl jump_fcontext .def jump_fcontext; .scl 2; .type 32; .endef .seh_proc jump_fcontext jump_fcontext: .seh_endprologue pushq %rbp /* save RBP */ pushq %rbx /* save RBX */ pushq %rsi /* save RSI */ pushq %rdi /* save RDI */ pushq %r15 /* save R15 */ pushq %r14 /* save R14 */ pushq %r13 /* save R13 */ pushq %r12 /* save R12 */ /* load NT_TIB */ movq %gs:(0x30), %r10 /* save current stack base */ movq 0x08(%r10), %rax pushq %rax /* save current stack limit */ movq 0x10(%r10), %rax pushq %rax /* save current deallocation stack */ movq 0x1478(%r10), %rax pushq %rax /* save fiber local storage */ movq 0x18(%r10), %rax pushq %rax /* prepare stack for FPU */ leaq -0xa8(%rsp), %rsp /* test for flag preserve_fpu */ testq %r9, %r9 je 1f /* save MMX control- and status-word */ stmxcsr 0xa0(%rsp) /* save x87 control-word */ fnstcw 0xa4(%rsp) /* save XMM storage */ movaps %xmm6, (%rsp) movaps %xmm7, 0x10(%rsp) movaps %xmm8, 0x20(%rsp) movaps %xmm9, 0x30(%rsp) movaps %xmm10, 0x40(%rsp) movaps %xmm11, 0x50(%rsp) movaps %xmm12, 0x60(%rsp) movaps %xmm13, 0x70(%rsp) movaps %xmm14, 0x80(%rsp) movaps %xmm15, 0x90(%rsp) 1: /* set R10 to zero */ xorq %r10, %r10 /* set indicator */ pushq %r10 /* store RSP (pointing to context-data) in RCX */ movq %rsp, (%rcx) /* restore RSP (pointing to context-data) from RDX */ movq %rdx, %rsp /* load indicator */ popq %r10 /* test for flag preserve_fpu */ testq %r9, %r9 je 2f /* restore MMX control- and status-word */ ldmxcsr 0xa0(%rsp) /* save x87 control-word */ fldcw 0xa4(%rsp) /* restore XMM storage */ movaps (%rsp), %xmm6 movaps 0x10(%rsp), %xmm7 movaps 0x20(%rsp), %xmm8 movaps 0x30(%rsp), %xmm9 movaps 0x40(%rsp), %xmm10 movaps 0x50(%rsp), %xmm11 movaps 0x60(%rsp), %xmm12 movaps 0x70(%rsp), %xmm13 movaps 0x80(%rsp), %xmm14 movaps 0x90(%rsp), %xmm15 2: /* set offset of stack */ movq 0xa8, %rcx /* test for indicator */ testq %r10, %r10 je 3f addq 0x8, %rcx 3: /* prepare stack for FPU */ leaq (%rsp,%rcx), %rsp /* load NT_TIB */ movq %gs:(0x30), %r10 /* restore fiber local storage */ popq %rax movq %rax, 0x18(%r10) /* restore deallocation stack */ popq %rax movq %rax, 0x1478(%r10) /* restore stack limit */ popq %rax movq %rax, 0x10(%r10) /* restore stack base */ popq %rax movq %rax, 0x8(%r10) popq %r12 /* restore R12 */ popq %r13 /* restore R13 */ popq %r14 /* restore R14 */ popq %r15 /* restore R15 */ popq %rdi /* restore RDI */ popq %rsi /* restore RSI */ popq %rbx /* restore RBX */ popq %rbp /* restore RBP */ /* restore return-address */ popq %r10 /* use third arg as return-value after jump */ movq %r8, %rax /* use third arg as first arg in context function */ movq %r8, %rcx /* indirect jump to context */ jmp *%r10 .seh_endproc