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nixpkgs/pkgs/development/libraries/boost/cygwin-1.57.0-context-cygwin.patch

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--- boost_1_57_0/libs/context/build/Jamfile.v2 2014-10-20 01:26:00.000000000 -0500
+++ boost_1_57_0/libs/context/build/Jamfile.v2 2015-05-04 17:43:10.812161900 -0500
@@ -29,6 +29,7 @@ local rule default_binary_format ( )
local tmp = elf ;
if [ os.name ] = "MACOSX" { tmp = mach-o ; }
if [ os.name ] = "NT" { tmp = pe ; }
+ if [ os.name ] = "CYGWIN" { tmp = pe ; }
if [ os.name ] = "AIX" { tmp = xcoff ; }
return $(tmp) ;
}
@@ -581,6 +582,16 @@ alias asm_context_sources
;
alias asm_context_sources
+ : asm/make_i386_ms_pe_gas.S
+ asm/jump_i386_ms_pe_gas.S
+ dummy.cpp
+ : <address-model>32
+ <architecture>x86
+ <binary-format>pe
+ <toolset>gcc
+ ;
+
+alias asm_context_sources
: asm/make_i386_ms_pe_masm.asm
asm/jump_i386_ms_pe_masm.asm
dummy.cpp
@@ -715,6 +726,16 @@ alias asm_context_sources
;
alias asm_context_sources
+ : asm/make_x86_64_ms_pe_gas.S
+ asm/jump_x86_64_ms_pe_gas.S
+ dummy.cpp
+ : <address-model>64
+ <architecture>x86
+ <binary-format>pe
+ <toolset>gcc
+ ;
+
+alias asm_context_sources
: asm/make_x86_64_ms_pe_masm.asm
asm/jump_x86_64_ms_pe_masm.asm
dummy.cpp
--- boost_1_57_0/libs/context/src/asm/jump_i386_ms_pe_gas.S 1969-12-31 18:00:00.000000000 -0600
+++ boost_1_57_0/libs/context/src/asm/jump_i386_ms_pe_gas.S 2015-05-04 17:43:10.821663100 -0500
@@ -0,0 +1,108 @@
+/*
+ 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 | 2 | 3 | 4 | 5 | *
+ * -------------------------------------------------------------- *
+ * | 0h | 04h | 08h | 0ch | 010h | 014h | *
+ * -------------------------------------------------------------- *
+ * | EDI | ESI | EBX | EBP | ESP | EIP | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 6 | 7 | 8 | | *
+ * -------------------------------------------------------------- *
+ * | 018h | 01ch | 020h | | *
+ * -------------------------------------------------------------- *
+ * | sp | size | limit | | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 9 | | *
+ * -------------------------------------------------------------- *
+ * | 024h | | *
+ * -------------------------------------------------------------- *
+ * |fc_execpt| | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 10 | | *
+ * -------------------------------------------------------------- *
+ * | 028h | | *
+ * -------------------------------------------------------------- *
+ * |fc_strage| | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 11 | 12 | | *
+ * -------------------------------------------------------------- *
+ * | 02ch | 030h | | *
+ * -------------------------------------------------------------- *
+ * | fc_mxcsr|fc_x87_cw| | *
+ * -------------------------------------------------------------- *
+ * *
+ * *****************************************************************/
+
+.file "jump_i386_ms_pe_gas.S"
+.text
+.p2align 4,,15
+.globl _jump_fcontext
+.def _jump_fcontext; .scl 2; .type 32; .endef
+_jump_fcontext:
+ movl 0x04(%esp), %ecx /* load address of the first fcontext_t arg */
+ movl %edi, (%ecx) /* save EDI */
+ movl %esi, 0x04(%ecx) /* save ESI */
+ movl %ebx, 0x08(%ecx) /* save EBX */
+ movl %ebp, 0x0c(%ecx) /* save EBP */
+
+ movl %fs:(0x18), %edx /* load NT_TIB */
+ movl (%edx), %eax /* load current SEH exception list */
+ movl %eax, 0x24(%ecx) /* save current exception list */
+ movl 0x04(%edx), %eax /* load current stack base */
+ movl %eax, 0x18(%ecx) /* save current stack base */
+ movl 0x08(%edx), %eax /* load current stack limit */
+ movl %eax, 0x20(%ecx) /* save current stack limit */
+ movl 0x10(%edx), %eax /* load fiber local storage */
+ movl %eax, 0x28(%ecx) /* save fiber local storage */
+
+ leal 0x04(%esp), %eax /* exclude the return address */
+ movl %eax, 0x10(%ecx) /* save as stack pointer */
+ movl (%esp), %eax /* load return address */
+ movl %eax, 0x14(%ecx) /* save return address */
+
+ movl 0x08(%esp), %edx /* load address of the second fcontext_t arg */
+ movl (%edx), %edi /* restore EDI */
+ movl 0x04(%edx), %esi /* restore ESI */
+ movl 0x08(%edx), %ebx /* restore EBX */
+ movl 0x0c(%edx), %ebp /* restore EBP */
+
+ movl 0x10(%esp), %eax /* check if fpu enve preserving was requested */
+ testl %eax, %eax
+ je 1f
+
+ stmxcsr 0x2c(%ecx) /* save MMX control word */
+ fnstcw 0x30(%ecx) /* save x87 control word */
+ ldmxcsr 0x2c(%edx) /* restore MMX control word */
+ fldcw 0x30(%edx) /* restore x87 control word */
+1:
+ movl %edx, %ecx
+ movl %fs:(0x18), %edx /* load NT_TIB */
+ movl 0x24(%ecx), %eax /* load SEH exception list */
+ movl %eax, (%edx) /* restore next SEH item */
+ movl 0x18(%ecx), %eax /* load stack base */
+ movl %eax, 0x04(%edx) /* restore stack base */
+ movl 0x20(%ecx), %eax /* load stack limit */
+ movl %eax, 0x08(%edx) /* restore stack limit */
+ movl 0x28(%ecx), %eax /* load fiber local storage */
+ movl %eax, 0x10(%edx) /* restore fiber local storage */
+
+ movl 0x0c(%esp), %eax /* use third arg as return value after jump */
+
+ movl 0x10(%ecx), %esp /* restore ESP */
+ movl %eax, 0x04(%esp) /* use third arg as first arg in context function */
+ movl 0x14(%ecx), %ecx /* fetch the address to return to */
+
+ jmp *%ecx /* indirect jump to context */
--- boost_1_57_0/libs/context/src/asm/jump_x86_64_ms_pe_gas.S 1969-12-31 18:00:00.000000000 -0600
+++ boost_1_57_0/libs/context/src/asm/jump_x86_64_ms_pe_gas.S 2015-05-04 17:43:10.829664200 -0500
@@ -0,0 +1,189 @@
+/*
+ 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 | 2 | 3 | 4 | 5 | 6 | 7 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | *
+ * ---------------------------------------------------------------------------------- *
+ * | R12 | R13 | R14 | R15 | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x20 | 0x24 | 0x28 | 0x2c | 0x30 | 0x34 | 0x38 | 0x3c | *
+ * ---------------------------------------------------------------------------------- *
+ * | RDI | RSI | RBX | RBP | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 16 | 17 | 18 | 19 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x40 | 0x44 | 0x48 | 0x4c | | *
+ * ---------------------------------------------------------------------------------- *
+ * | RSP | RIP | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 20 | 21 | 22 | 23 | 24 | 25 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x50 | 0x54 | 0x58 | 0x5c | 0x60 | 0x64 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | sp | size | limit | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 26 | 27 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x68 | 0x6c | | *
+ * ---------------------------------------------------------------------------------- *
+ * | fbr_strg | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x70 | 0x74 | 0x78 | 0x7c | 0x80 | 0x84 | 0x88 | 0x8c | *
+ * ---------------------------------------------------------------------------------- *
+ * | fc_mxcsr|fc_x87_cw| fc_xmm | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x90 | 0x94 | 0x98 | 0x9c | 0xa0 | 0xa4 | 0xa8 | 0xac | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xb0 | 0xb4 | 0xb8 | 0xbc | 0xc0 | 0xc4 | 0xc8 | 0xcc | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xd0 | 0xd4 | 0xd8 | 0xdc | 0xe0 | 0xe4 | 0xe8 | 0xec | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xf0 | 0xf4 | 0xf8 | 0xfc | 0x100 | 0x104 | 0x108 | 0x10c | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x110 | 0x114 | 0x118 | 0x11c | 0x120 | 0x124 | 0x128 | 0x12c | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * *
+ * *************************************************************************************/
+
+.file "jump_x86_64_ms_pe_gas.S"
+.text
+.p2align 4,,15
+.globl jump_fcontext
+.def jump_fcontext; .scl 2; .type 32; .endef
+.seh_proc jump_fcontext
+jump_fcontext:
+.seh_endprologue
+ movq %r12, (%rcx) /* save R12 */
+ movq %r13, 0x08(%rcx) /* save R13 */
+ movq %r14, 0x10(%rcx) /* save R14 */
+ movq %r15, 0x18(%rcx) /* save R15 */
+ movq %rdi, 0x20(%rcx) /* save RDI */
+ movq %rsi, 0x28(%rcx) /* save RSI */
+ movq %rbx, 0x30(%rcx) /* save RBX */
+ movq %rbp, 0x38(%rcx) /* save RBP */
+
+ movq %gs:(0x30), %r10 /* load NT_TIB */
+ movq 0x08(%r10), %rax /* load current stack base */
+ movq %rax, 0x50(%rcx) /* save current stack base */
+ movq 0x10(%r10), %rax /* load current stack limit */
+ movq %rax, 0x60(%rcx) /* save current stack limit */
+ movq 0x18(%r10), %rax /* load fiber local storage */
+ movq %rax, 0x68(%rcx) /* save fiber local storage */
+
+ testq %r9, %r9
+ je 1f
+
+ stmxcsr 0x70(%rcx) /* save MMX control and status word */
+ fnstcw 0x74(%rcx) /* save x87 control word */
+ /* save XMM storage */
+ /* save start address of SSE register block in R10 */
+ leaq 0x90(%rcx), %r10
+ /* shift address in R10 to lower 16 byte boundary */
+ /* == pointer to SEE register block */
+ andq $-16, %r10
+
+ movaps %xmm6, (%r10)
+ movaps %xmm7, 0x10(%r10)
+ movaps %xmm8, 0x20(%r10)
+ movaps %xmm9, 0x30(%r10)
+ movaps %xmm10, 0x40(%r10)
+ movaps %xmm11, 0x50(%r10)
+ movaps %xmm12, 0x60(%r10)
+ movaps %xmm13, 0x70(%r10)
+ movaps %xmm14, 0x80(%r10)
+ movaps %xmm15, 0x90(%r10)
+
+ ldmxcsr 0x70(%rdx) /* restore MMX control and status word */
+ fldcw 0x74(%rdx) /* restore x87 control word */
+ /* restore XMM storage */
+ /* save start address of SSE register block in R10 */
+ leaq 0x90(%rdx), %r10
+ /* shift address in R10 to lower 16 byte boundary */
+ /* == pointer to SEE register block */
+ andq $-16, %r10
+
+ movaps (%r10), %xmm6
+ movaps 0x10(%r10), %xmm7
+ movaps 0x20(%r10), %xmm8
+ movaps 0x30(%r10), %xmm9
+ movaps 0x40(%r10), %xmm10
+ movaps 0x50(%r10), %xmm11
+ movaps 0x60(%r10), %xmm12
+ movaps 0x70(%r10), %xmm13
+ movaps 0x80(%r10), %xmm14
+ movaps 0x90(%r10), %xmm15
+
+1:
+ leaq 0x08(%rsp), %rax /* exclude the return address */
+ movq %rax, 0x40(%rcx) /* save as stack pointer */
+ movq (%rsp), %rax /* load return address */
+ movq %rax, 0x48(%rcx) /* save return address */
+
+ movq (%rdx), %r12 /* restore R12 */
+ movq 0x08(%rdx), %r13 /* restore R13 */
+ movq 0x10(%rdx), %r14 /* restore R14 */
+ movq 0x18(%rdx), %r15 /* restore R15 */
+ movq 0x20(%rdx), %rdi /* restore RDI */
+ movq 0x28(%rdx), %rsi /* restore RSI */
+ movq 0x30(%rdx), %rbx /* restore RBX */
+ movq 0x38(%rdx), %rbp /* restore RBP */
+
+ movq %gs:(0x30), %r10 /* load NT_TIB */
+ movq 0x50(%rdx), %rax /* load stack base */
+ movq %rax, 0x08(%r10) /* restore stack base */
+ movq 0x60(%rdx), %rax /* load stack limit */
+ movq %rax, 0x10(%r10) /* restore stack limit */
+ movq 0x68(%rdx), %rax /* load fiber local storage */
+ movq %rax, 0x18(%r10) /* restore fiber local storage */
+
+ movq 0x40(%rdx), %rsp /* restore RSP */
+ movq 0x48(%rdx), %r10 /* fetch the address to returned to */
+
+ movq %r8, %rax /* use third arg as return value after jump */
+ movq %r8, %rcx /* use third arg as first arg in context function */
+
+ jmp *%r10 /* indirect jump to caller */
+.seh_endproc
--- boost_1_57_0/libs/context/src/asm/make_i386_ms_pe_gas.S 1969-12-31 18:00:00.000000000 -0600
+++ boost_1_57_0/libs/context/src/asm/make_i386_ms_pe_gas.S 2015-05-04 17:43:10.836165000 -0500
@@ -0,0 +1,115 @@
+/*
+ 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 | 2 | 3 | 4 | 5 | *
+ * -------------------------------------------------------------- *
+ * | 0h | 04h | 08h | 0ch | 010h | 014h | *
+ * -------------------------------------------------------------- *
+ * | EDI | ESI | EBX | EBP | ESP | EIP | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 6 | 7 | 8 | | *
+ * -------------------------------------------------------------- *
+ * | 018h | 01ch | 020h | | *
+ * -------------------------------------------------------------- *
+ * | sp | size | limit | | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 9 | | *
+ * -------------------------------------------------------------- *
+ * | 024h | | *
+ * -------------------------------------------------------------- *
+ * |fc_execpt| | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 10 | | *
+ * -------------------------------------------------------------- *
+ * | 028h | | *
+ * -------------------------------------------------------------- *
+ * |fc_strage| | *
+ * -------------------------------------------------------------- *
+ * -------------------------------------------------------------- *
+ * | 11 | 12 | | *
+ * -------------------------------------------------------------- *
+ * | 02ch | 030h | | *
+ * -------------------------------------------------------------- *
+ * | fc_mxcsr|fc_x87_cw| | *
+ * -------------------------------------------------------------- *
+ * *
+ * *****************************************************************/
+
+.file "make_i386_ms_pe_gas.S"
+.text
+.p2align 4,,15
+.globl _make_fcontext
+.def _make_fcontext; .scl 2; .type 32; .endef
+_make_fcontext:
+ movl 0x04(%esp), %eax /* load 1. arg of make_fcontext, pointer to context stack (base) */
+ leal -0x34(%eax),%eax /* reserve space for fcontext_t at top of context stack */
+
+ /* shift address in EAX to lower 16 byte boundary */
+ /* == pointer to fcontext_t and address of context stack */
+ andl $-16, %eax
+
+ movl 0x04(%esp), %ecx /* load 1. arg of make_fcontext, pointer to context stack (base) */
+ movl %ecx, 0x18(%eax) /* save address of context stack (base) in fcontext_t */
+ movl 0x08(%esp), %edx /* load 2. arg of make_fcontext, context stack size */
+ movl %edx, 0x1c(%eax) /* save context stack size in fcontext_t */
+ negl %edx /* negate stack size for LEA instruction (== substraction) */
+ leal (%ecx,%edx),%ecx /* compute bottom address of context stack (limit) */
+ movl %ecx, 0x20(%eax) /* save address of context stack (limit) in fcontext_t */
+ movl 0x0c(%esp), %ecx /* load 3. arg of make_fcontext, pointer to context function */
+ movl %ecx, 0x14(%eax) /* save address of context function in fcontext_t */
+
+ stmxcsr 0x02c(%eax) /* save MMX control word */
+ fnstcw 0x030(%eax) /* save x87 control word */
+
+ leal -0x1c(%eax),%edx /* reserve space for last frame and seh on context stack, (ESP - 0x4) % 16 == 0 */
+ movl %edx, 0x10(%eax) /* save address in EDX as stack pointer for context function */
+
+ movl $finish, %ecx /* abs address of finish */
+ movl %ecx, (%edx) /* save address of finish as return address for context function */
+ /* entered after context function returns */
+
+ /* traverse current seh chain to get the last exception handler installed by Windows */
+ /* note that on Windows Server 2008 and 2008 R2, SEHOP is activated by default */
+ /* the exception handler chain is tested for the presence of ntdll.dll!FinalExceptionHandler */
+ /* at its end by RaiseException all seh andlers are disregarded if not present and the */
+ /* program is aborted */
+ movl %fs:(0x18), %ecx /* load NT_TIB into ECX */
+
+walk:
+ movl (%ecx), %edx /* load 'next' member of current SEH into EDX */
+ incl %edx /* test if 'next' of current SEH is last (== 0xffffffff) */
+ jz found
+ decl %edx
+ xchgl %ecx, %edx /* exchange content; ECX contains address of next SEH */
+ jmp walk /* inspect next SEH */
+
+found:
+ movl 0x04(%ecx), %ecx /* load 'handler' member of SEH == address of last SEH handler installed by Windows */
+ movl 0x10(%eax), %edx /* load address of stack pointer for context function */
+ movl %ecx, 0x18(%edx) /* save address in ECX as SEH handler for context */
+ movl $0xffffffff,%ecx /* set ECX to -1 */
+ movl %ecx, 0x14(%edx) /* save ECX as next SEH item */
+ leal 0x14(%edx), %ecx /* load address of next SEH item */
+ movl %ecx, 0x24(%eax) /* save next SEH */
+
+ ret
+
+finish:
+ /* ESP points to same address as ESP on entry of context function + 0x4 */
+ xorl %eax, %eax
+ movl %eax, (%esp) /* exit code is zero */
+ call __exit /* exit application */
+ hlt
+
+.def __exit; .scl 2; .type 32; .endef /* standard C library function */
--- boost_1_57_0/libs/context/src/asm/make_x86_64_ms_pe_gas.S 1969-12-31 18:00:00.000000000 -0600
+++ boost_1_57_0/libs/context/src/asm/make_x86_64_ms_pe_gas.S 2015-05-04 17:43:10.843165900 -0500
@@ -0,0 +1,132 @@
+/*
+ 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 | 2 | 3 | 4 | 5 | 6 | 7 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | *
+ * ---------------------------------------------------------------------------------- *
+ * | R12 | R13 | R14 | R15 | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x20 | 0x24 | 0x28 | 0x2c | 0x30 | 0x34 | 0x38 | 0x3c | *
+ * ---------------------------------------------------------------------------------- *
+ * | RDI | RSI | RBX | RBP | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 16 | 17 | 18 | 19 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x40 | 0x44 | 0x48 | 0x4c | | *
+ * ---------------------------------------------------------------------------------- *
+ * | RSP | RIP | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 20 | 21 | 22 | 23 | 24 | 25 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x50 | 0x54 | 0x58 | 0x5c | 0x60 | 0x64 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | sp | size | limit | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 26 | 27 | | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x68 | 0x6c | | *
+ * ---------------------------------------------------------------------------------- *
+ * | fbr_strg | | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x70 | 0x74 | 0x78 | 0x7c | 0x80 | 0x84 | 0x88 | 0x8c | *
+ * ---------------------------------------------------------------------------------- *
+ * | fc_mxcsr|fc_x87_cw| fc_xmm | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x90 | 0x94 | 0x98 | 0x9c | 0xa0 | 0xa4 | 0xa8 | 0xac | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xb0 | 0xb4 | 0xb8 | 0xbc | 0xc0 | 0xc4 | 0xc8 | 0xcc | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xd0 | 0xd4 | 0xd8 | 0xdc | 0xe0 | 0xe4 | 0xe8 | 0xec | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0xf0 | 0xf4 | 0xf8 | 0xfc | 0x100 | 0x104 | 0x108 | 0x10c | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * ---------------------------------------------------------------------------------- *
+ * | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | *
+ * ---------------------------------------------------------------------------------- *
+ * | 0x110 | 0x114 | 0x118 | 0x11c | 0x120 | 0x124 | 0x128 | 0x12c | *
+ * ---------------------------------------------------------------------------------- *
+ * | SEE registers (XMM6-XMM15) | *
+ * ---------------------------------------------------------------------------------- *
+ * *
+ * *************************************************************************************/
+
+.file "make_x86_64_ms_pe_gas.S"
+.text
+.p2align 4,,15
+.globl make_fcontext
+.def make_fcontext; .scl 2; .type 32; .endef
+.seh_proc make_fcontext
+make_fcontext:
+.seh_endprologue
+ leaq -0x130(%rcx),%rax /* reserve space for fcontext_t at top of context stack */
+
+ /* shift address in RAX to lower 16 byte boundary */
+ /* == pointer to fcontext_t and address of context stack */
+ andq $-16, %rax
+
+ movq %r8, 0x48(%rax) /* save address of context function in fcontext_t */
+ movq %rdx, 0x58(%rax) /* save context stack size in fcontext_t */
+ movq %rcx, 0x50(%rax) /* save address of context stack pointer (base) in fcontext_t */
+
+ negq %rdx /* negate stack size for LEA instruction (== substraction) */
+ leaq (%rcx,%rdx),%rcx /* compute bottom address of context stack (limit) */
+ movq %rcx, 0x60(%rax) /* save bottom address of context stack (limit) in fcontext_t */
+
+ stmxcsr 0x70(%rax) /* save MMX control and status word */
+ fnstcw 0x74(%rax) /* save x87 control word */
+
+ leaq -0x28(%rax),%rdx /* reserve 32byte shadow space + return address on stack, (RSP - 0x8) % 16 == 0 */
+ movq %rdx, 0x40(%rax) /* save address in RDX as stack pointer for context function */
+
+ leaq finish(%rip),%rcx /* compute abs address of label finish */
+ movq %rcx,(%rdx) /* save address of finish as return address for context function */
+ /* entered after context function returns */
+
+ ret
+
+finish:
+ /* RSP points to same address as RSP on entry of context function + 0x8 */
+ xorq %rcx, %rcx /* exit code is zero */
+ call _exit /* exit application */
+ hlt
+.seh_endproc
+
+.def _exit; .scl 2; .type 32; .endef /* standard C library function */
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