/*

    auto-generated file, do not modify!
    libcontext - a slightly more portable version of boost::context
    Copyright Martin Husemann 2013.
    Copyright Oliver Kowalke 2009.
    Copyright Sergue E. Leontiev 2013
    Copyright Thomas Sailer 2013.
    Minor modifications by Tomasz Wlostowski 2016.

 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)

*/
#include <system/libcontext.h>

#if defined(LIBCONTEXT_PLATFORM_windows_i386) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".p2align 4,,15\n"
".globl	_jump_fcontext\n"
".def	_jump_fcontext;	.scl	2;	.type	32;	.endef\n"
"_jump_fcontext:\n"
"    mov    0x10(%esp),%ecx\n"
"    push   %ebp\n"
"    push   %ebx\n"
"    push   %esi\n"
"    push   %edi\n"
"    mov    %fs:0x18,%edx\n"
"    mov    (%edx),%eax\n"
"    push   %eax\n"
"    mov    0x4(%edx),%eax\n"
"    push   %eax\n"
"    mov    0x8(%edx),%eax\n"
"    push   %eax\n"
"    mov    0xe0c(%edx),%eax\n"
"    push   %eax\n"
"    mov    0x10(%edx),%eax\n"
"    push   %eax\n"
"    lea    -0x8(%esp),%esp\n"
"    test   %ecx,%ecx\n"
"    je     nxt1\n"
"    stmxcsr (%esp)\n"
"    fnstcw 0x4(%esp)\n"
"nxt1:\n"
"    mov    0x30(%esp),%eax\n"
"    mov    %esp,(%eax)\n"
"    mov    0x34(%esp),%edx\n"
"    mov    0x38(%esp),%eax\n"
"    mov    %edx,%esp\n"
"    test   %ecx,%ecx\n"
"    je     nxt2\n"
"    ldmxcsr (%esp)\n"
"    fldcw  0x4(%esp)\n"
"nxt2:\n"
"    lea    0x8(%esp),%esp\n"
"    mov    %fs:0x18,%edx\n"
"    pop    %ecx\n"
"    mov    %ecx,0x10(%edx)\n"
"    pop    %ecx\n"
"    mov    %ecx,0xe0c(%edx)\n"
"    pop    %ecx\n"
"    mov    %ecx,0x8(%edx)\n"
"    pop    %ecx\n"
"    mov    %ecx,0x4(%edx)\n"
"    pop    %ecx\n"
"    mov    %ecx,(%edx)\n"
"    pop    %edi\n"
"    pop    %esi\n"
"    pop    %ebx\n"
"    pop    %ebp\n"
"    pop    %edx\n"
"    mov    %eax,0x4(%esp)\n"
"    jmp    *%edx\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_windows_i386) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".p2align 4,,15\n"
".globl	_make_fcontext\n"
".def	_make_fcontext;	.scl	2;	.type	32;	.endef\n"
"_make_fcontext:\n"
"mov    0x4(%esp),%eax\n"
"lea    -0x8(%eax),%eax\n"
"and    $0xfffffff0,%eax\n"
"lea    -0x3c(%eax),%eax\n"
"mov    0x4(%esp),%ecx\n"
"mov    %ecx,0x14(%eax)\n"
"mov    0x8(%esp),%edx\n"
"neg    %edx\n"
"lea    (%ecx,%edx,1),%ecx\n"
"mov    %ecx,0x10(%eax)\n"
"mov    %ecx,0xc(%eax)\n"
"mov    0xc(%esp),%ecx\n"
"mov    %ecx,0x2c(%eax)\n"
"stmxcsr (%eax)\n"
"fnstcw 0x4(%eax)\n"
"mov    $finish,%ecx\n"
"mov    %ecx,0x30(%eax)\n"
"mov    %fs:0x0,%ecx\n"
"walk:\n"
"mov    (%ecx),%edx\n"
"inc    %edx\n"
"je     found\n"
"dec    %edx\n"
"xchg   %edx,%ecx\n"
"jmp    walk\n"
"found:\n"
"mov    0x4(%ecx),%ecx\n"
"mov    %ecx,0x3c(%eax)\n"
"mov    $0xffffffff,%ecx\n"
"mov    %ecx,0x38(%eax)\n"
"lea    0x38(%eax),%ecx\n"
"mov    %ecx,0x18(%eax)\n"
"ret\n"
"finish:\n"
"xor    %eax,%eax\n"
"mov    %eax,(%esp)\n"
"call   _exit\n"
"hlt\n"
".def	__exit;	.scl	2;	.type	32;	.endef  \n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_windows_x86_64) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".p2align 4,,15\n"
".globl	jump_fcontext\n"
".def	jump_fcontext;	.scl	2;	.type	32;	.endef\n"
".seh_proc	jump_fcontext\n"
"jump_fcontext:\n"
".seh_endprologue\n"
"	push   %rbp\n"
"	push   %rbx\n"
"	push   %rsi\n"
"	push   %rdi\n"
"	push   %r15\n"
"	push   %r14\n"
"	push   %r13\n"
"	push   %r12\n"
"	mov    %gs:0x30,%r10\n"
"	mov    0x8(%r10),%rax\n"
"	push   %rax\n"
"	mov    0x10(%r10),%rax\n"
"	push   %rax\n"
"	mov    0x1478(%r10),%rax\n"
"	push   %rax\n"
"	mov    0x18(%r10),%rax\n"
"	push   %rax\n"
"	lea    -0xa8(%rsp),%rsp\n"
"	test   %r9,%r9\n"
"	je     nxt1\n"
"	stmxcsr 0xa0(%rsp)\n"
"	fnstcw 0xa4(%rsp)\n"
"	movaps %xmm6,(%rsp)\n"
"	movaps %xmm7,0x10(%rsp)\n"
"	movaps %xmm8,0x20(%rsp)\n"
"	movaps %xmm9,0x30(%rsp)\n"
"	movaps %xmm10,0x40(%rsp)\n"
"	movaps %xmm11,0x50(%rsp)\n"
"	movaps %xmm12,0x60(%rsp)\n"
"	movaps %xmm13,0x70(%rsp)\n"
"	movaps %xmm14,0x80(%rsp)\n"
"	movaps %xmm15,0x90(%rsp)\n"
"nxt1:\n"
"	xor    %r10,%r10\n"
"	push   %r10\n"
"	mov    %rsp,(%rcx)\n"
"	mov    %rdx,%rsp\n"
"	pop    %r10\n"
"	test   %r9,%r9\n"
"	je     nxt2\n"
"	ldmxcsr 0xa0(%rsp)\n"
"	fldcw  0xa4(%rsp)\n"
"	movaps (%rsp),%xmm6\n"
"	movaps 0x10(%rsp),%xmm7\n"
"	movaps 0x20(%rsp),%xmm8\n"
"	movaps 0x30(%rsp),%xmm9\n"
"	movaps 0x40(%rsp),%xmm10\n"
"	movaps 0x50(%rsp),%xmm11\n"
"	movaps 0x60(%rsp),%xmm12\n"
"	movaps 0x70(%rsp),%xmm13\n"
"	movaps 0x80(%rsp),%xmm14\n"
"	movaps 0x90(%rsp),%xmm15\n"
"nxt2:\n"
"	mov    $0xa8,%rcx\n"
"    test   %r10,%r10\n"
"    je     nxt3\n"
"    add    $0x8,%rcx\n"
"nxt3:\n"
"	lea    (%rsp,%rcx,1),%rsp\n"
"	mov    %gs:0x30,%r10\n"
"	pop    %rax\n"
"	mov    %rax,0x18(%r10)\n"
"	pop    %rax\n"
"	mov    %rax,0x1478(%r10)\n"
"	pop    %rax\n"
"	mov    %rax,0x10(%r10)\n"
"	pop    %rax\n"
"	mov    %rax,0x8(%r10)\n"
"	pop    %r12\n"
"	pop    %r13\n"
"	pop    %r14\n"
"	pop    %r15\n"
"	pop    %rdi\n"
"	pop    %rsi\n"
"	pop    %rbx\n"
"	pop    %rbp\n"
"	pop    %r10\n"
"	mov    %r8,%rax\n"
"	mov    %r8,%rcx\n"
"	jmpq   *%r10\n"
".seh_endproc\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_windows_x86_64) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".p2align 4,,15\n"
".globl	make_fcontext\n"
".def	make_fcontext;	.scl	2;	.type	32;	.endef\n"
".seh_proc	make_fcontext\n"
"make_fcontext:\n"
".seh_endprologue\n"
"mov    %rcx,%rax\n"
"sub    $0x28,%rax\n"
"and    $0xfffffffffffffff0,%rax\n"
"sub    $0x128,%rax\n"
"mov    %r8,0x118(%rax)\n"
"mov    %rcx,0xd0(%rax)\n"
"neg    %rdx\n"
"lea    (%rcx,%rdx,1),%rcx\n"
"mov    %rcx,0xc8(%rax)\n"
"mov    %rcx,0xc0(%rax)\n"
"stmxcsr 0xa8(%rax)\n"
"fnstcw 0xac(%rax)\n"
"leaq  finish(%rip), %rcx\n"
"mov    %rcx,0x120(%rax)\n"
"mov    $0x1,%rcx\n"
"mov    %rcx,(%rax)\n"
"retq\n"
"finish:\n"
"xor    %rcx,%rcx\n"
"callq  0x63\n"
"hlt\n"
"   .seh_endproc\n"
".def	_exit;	.scl	2;	.type	32;	.endef  \n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_linux_i386) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".globl jump_fcontext\n"
".align 2\n"
".type jump_fcontext,@function\n"
"jump_fcontext:\n"
"    movl  0x10(%esp), %ecx\n"
"    pushl  %ebp  \n"
"    pushl  %ebx  \n"
"    pushl  %esi  \n"
"    pushl  %edi  \n"
"    leal  -0x8(%esp), %esp\n"
"    test  %ecx, %ecx\n"
"    je  1f\n"
"    stmxcsr  (%esp)\n"
"    fnstcw  0x4(%esp)\n"
"1:\n"
"    movl  0x1c(%esp), %eax\n"
"    movl  %esp, (%eax)\n"
"    movl  0x20(%esp), %edx\n"
"    movl  0x24(%esp), %eax\n"
"    movl  %edx, %esp\n"
"    test  %ecx, %ecx\n"
"    je  2f\n"
"    ldmxcsr  (%esp)\n"
"    fldcw  0x4(%esp)\n"
"2:\n"
"    leal  0x8(%esp), %esp\n"
"    popl  %edi  \n"
"    popl  %esi  \n"
"    popl  %ebx  \n"
"    popl  %ebp  \n"
"    popl  %edx\n"
"    movl  %eax, 0x4(%esp)\n"
"    jmp  *%edx\n"
".size jump_fcontext,.-jump_fcontext\n"
".section .note.GNU-stack,\"\",%progbits\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_linux_i386) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".globl make_fcontext\n"
".align 2\n"
".type make_fcontext,@function\n"
"make_fcontext:\n"
"    movl  0x4(%esp), %eax\n"
"    leal  -0x8(%eax), %eax\n"
"    andl  $-16, %eax\n"
"    leal  -0x20(%eax), %eax\n"
"    movl  0xc(%esp), %edx\n"
"    movl  %edx, 0x18(%eax)\n"
"    stmxcsr  (%eax)\n"
"    fnstcw  0x4(%eax)\n"
"    call  1f\n"
"1:  popl  %ecx\n"
"    addl  $finish-1b, %ecx\n"
"    movl  %ecx, 0x1c(%eax)\n"
"    ret \n"
"finish:\n"
"    call  2f\n"
"2:  popl  %ebx\n"
"    addl  $_GLOBAL_OFFSET_TABLE_+[.-2b], %ebx\n"
"    xorl  %eax, %eax\n"
"    movl  %eax, (%esp)\n"
"    call  _exit@PLT\n"
"    hlt\n"
".size make_fcontext,.-make_fcontext\n"
".section .note.GNU-stack,\"\",%progbits\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_linux_x86_64) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".globl jump_fcontext\n"
".type jump_fcontext,@function\n"
".align 16\n"
"jump_fcontext:\n"
"    pushq  %rbp  \n"
"    pushq  %rbx  \n"
"    pushq  %r15  \n"
"    pushq  %r14  \n"
"    pushq  %r13  \n"
"    pushq  %r12  \n"
"    leaq  -0x8(%rsp), %rsp\n"
"    cmp  $0, %rcx\n"
"    je  1f\n"
"    stmxcsr  (%rsp)\n"
"    fnstcw   0x4(%rsp)\n"
"1:\n"
"    movq  %rsp, (%rdi)\n"
"    movq  %rsi, %rsp\n"
"    cmp  $0, %rcx\n"
"    je  2f\n"
"    ldmxcsr  (%rsp)\n"
"    fldcw  0x4(%rsp)\n"
"2:\n"
"    leaq  0x8(%rsp), %rsp\n"
"    popq  %r12  \n"
"    popq  %r13  \n"
"    popq  %r14  \n"
"    popq  %r15  \n"
"    popq  %rbx  \n"
"    popq  %rbp  \n"
"    popq  %r8\n"
"    movq  %rdx, %rax\n"
"    movq  %rdx, %rdi\n"
"    jmp  *%r8\n"
".size jump_fcontext,.-jump_fcontext\n"
".section .note.GNU-stack,\"\",%progbits\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_linux_x86_64) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".globl make_fcontext\n"
".type make_fcontext,@function\n"
".align 16\n"
"make_fcontext:\n"
"    movq  %rdi, %rax\n"
"    andq  $-16, %rax\n"
"    leaq  -0x48(%rax), %rax\n"
"    movq  %rdx, 0x38(%rax)\n"
"    stmxcsr  (%rax)\n"
"    fnstcw   0x4(%rax)\n"
"    leaq  finish(%rip), %rcx\n"
"    movq  %rcx, 0x40(%rax)\n"
"    ret \n"
"finish:\n"
"    xorq  %rdi, %rdi\n"
"    call  _exit@PLT\n"
"    hlt\n"
".size make_fcontext,.-make_fcontext\n"
".section .note.GNU-stack,\"\",%progbits\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_apple_x86_64) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".globl _jump_fcontext\n"
".align 8\n"
"_jump_fcontext:\n"
"    pushq  %rbp  \n"
"    pushq  %rbx  \n"
"    pushq  %r15  \n"
"    pushq  %r14  \n"
"    pushq  %r13  \n"
"    pushq  %r12  \n"
"    leaq  -0x8(%rsp), %rsp\n"
"    cmp  $0, %rcx\n"
"    je  1f\n"
"    stmxcsr  (%rsp)\n"
"    fnstcw   0x4(%rsp)\n"
"1:\n"
"    movq  %rsp, (%rdi)\n"
"    movq  %rsi, %rsp\n"
"    cmp  $0, %rcx\n"
"    je  2f\n"
"    ldmxcsr  (%rsp)\n"
"    fldcw  0x4(%rsp)\n"
"2:\n"
"    leaq  0x8(%rsp), %rsp\n"
"    popq  %r12  \n"
"    popq  %r13  \n"
"    popq  %r14  \n"
"    popq  %r15  \n"
"    popq  %rbx  \n"
"    popq  %rbp  \n"
"    popq  %r8\n"
"    movq  %rdx, %rax\n"
"    movq  %rdx, %rdi\n"
"    jmp  *%r8\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_apple_x86_64) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".globl _make_fcontext\n"
".align 8\n"
"_make_fcontext:\n"
"    movq  %rdi, %rax\n"
"    movabs  $-16,           %r8\n"
"    andq    %r8,            %rax\n"
"    leaq  -0x48(%rax), %rax\n"
"    movq  %rdx, 0x38(%rax)\n"
"    stmxcsr  (%rax)\n"
"    fnstcw   0x4(%rax)\n"
"    leaq  finish(%rip), %rcx\n"
"    movq  %rcx, 0x40(%rax)\n"
"    ret \n"
"finish:\n"
"    xorq  %rdi, %rdi\n"
"    call  __exit\n"
"    hlt\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_apple_i386) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".globl _jump_fcontext\n"
".align 2\n"
"_jump_fcontext:\n"
"    movl  0x10(%esp), %ecx\n"
"    pushl  %ebp  \n"
"    pushl  %ebx  \n"
"    pushl  %esi  \n"
"    pushl  %edi  \n"
"    leal  -0x8(%esp), %esp\n"
"    test  %ecx, %ecx\n"
"    je  1f\n"
"    stmxcsr  (%esp)\n"
"    fnstcw  0x4(%esp)\n"
"1:\n"
"    movl  0x1c(%esp), %eax\n"
"    movl  %esp, (%eax)\n"
"    movl  0x20(%esp), %edx\n"
"    movl  0x24(%esp), %eax\n"
"    movl  %edx, %esp\n"
"    test  %ecx, %ecx\n"
"    je  2f\n"
"    ldmxcsr  (%esp)\n"
"    fldcw  0x4(%esp)\n"
"2:\n"
"    leal  0x8(%esp), %esp\n"
"    popl  %edi  \n"
"    popl  %esi  \n"
"    popl  %ebx  \n"
"    popl  %ebp  \n"
"    popl  %edx\n"
"    movl  %eax, 0x4(%esp)\n"
"    jmp  *%edx\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_apple_i386) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".globl _make_fcontext\n"
".align 2\n"
"_make_fcontext:\n"
"    movl  0x4(%esp), %eax\n"
"    leal  -0x8(%eax), %eax\n"
"    andl  $-16, %eax\n"
"    leal  -0x20(%eax), %eax\n"
"    movl  0xc(%esp), %edx\n"
"    movl  %edx, 0x18(%eax)\n"
"    stmxcsr  (%eax)\n"
"    fnstcw  0x4(%eax)\n"
"    call  1f\n"
"1:  popl  %ecx\n"
"    addl  $finish-1b, %ecx\n"
"    movl  %ecx, 0x1c(%eax)\n"
"    ret \n"
"finish:\n"
"    xorl  %eax, %eax\n"
"    movl  %eax, (%esp)\n"
"    call  __exit\n"
"    hlt\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_linux_arm32) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".globl jump_fcontext\n"
".align 2\n"
".type jump_fcontext,%function\n"
"jump_fcontext:\n"
"    @ save LR as PC\n"
"    push {lr}\n"
"    @ save V1-V8,LR\n"
"    push {v1-v8,lr}\n"
"    @ prepare stack for FPU\n"
"    sub  sp, sp, #64\n"
"    @ test if fpu env should be preserved\n"
"    cmp  a4, #0\n"
"    beq  1f\n"
"    @ save S16-S31\n"
"    vstmia  sp, {d8-d15}\n"
"1:\n"
"    @ store RSP (pointing to context-data) in A1\n"
"    str  sp, [a1]\n"
"    @ restore RSP (pointing to context-data) from A2\n"
"    mov  sp, a2\n"
"    @ test if fpu env should be preserved\n"
"    cmp  a4, #0\n"
"    beq  2f\n"
"    @ restore S16-S31\n"
"    vldmia  sp, {d8-d15}\n"
"2:\n"
"    @ prepare stack for FPU\n"
"    add  sp, sp, #64\n"
"    @ use third arg as return value after jump\n"
"    @ and as first arg in context function\n"
"    mov  a1, a3\n"
"    @ restore v1-V8,LR,PC\n"
"    pop {v1-v8,lr}\n"
"    pop {pc}\n"
".size jump_fcontext,.-jump_fcontext\n"
"@ Mark that we don't need executable stack.\n"
".section .note.GNU-stack,\"\",%progbits\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_linux_arm32) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".text\n"
".globl make_fcontext\n"
".align 2\n"
".type make_fcontext,%function\n"
"make_fcontext:\n"
"    @ shift address in A1 to lower 16 byte boundary\n"
"    bic  a1, a1, #15\n"
"    @ reserve space for context-data on context-stack\n"
"    sub  a1, a1, #104\n"
"    @ third arg of make_fcontext() == address of context-function\n"
"    str  a3, [a1,#100]\n"
"    @ compute abs address of label finish\n"
"    adr  a2, finish\n"
"    @ save address of finish as return-address for context-function\n"
"    @ will be entered after context-function returns\n"
"    str  a2, [a1,#96]\n"
"    bx  lr @ return pointer to context-data\n"
"finish:\n"
"    @ exit code is zero\n"
"    mov  a1, #0\n"
"    @ exit application\n"
"    bl  _exit@PLT\n"
".size make_fcontext,.-make_fcontext\n"
"@ Mark that we don't need executable stack.\n"
".section .note.GNU-stack,\"\",%progbits\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_linux_arm64) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".cpu    generic+fp+simd\n"
".text\n"
".align  2\n"
".global jump_fcontext\n"
".type   jump_fcontext, %function\n"
"jump_fcontext:\n"
"    # prepare stack for GP + FPU\n"
"    sub  sp, sp, #0xb0\n"
"# Because gcc may save integer registers in fp registers across a\n"
"# function call we cannot skip saving the fp registers.\n"
"#\n"
"# Do not reinstate this test unless you fully understand what you\n"
"# are doing.\n"
"#\n"
"#    # test if fpu env should be preserved\n"
"#    cmp  w3, #0\n"
"#    b.eq  1f\n"
"    # save d8 - d15\n"
"    stp  d8,  d9,  [sp, #0x00]\n"
"    stp  d10, d11, [sp, #0x10]\n"
"    stp  d12, d13, [sp, #0x20]\n"
"    stp  d14, d15, [sp, #0x30]\n"
"1:\n"
"    # save x19-x30\n"
"    stp  x19, x20, [sp, #0x40]\n"
"    stp  x21, x22, [sp, #0x50]\n"
"    stp  x23, x24, [sp, #0x60]\n"
"    stp  x25, x26, [sp, #0x70]\n"
"    stp  x27, x28, [sp, #0x80]\n"
"    stp  x29, x30, [sp, #0x90]\n"
"    # save LR as PC\n"
"    str  x30, [sp, #0xa0]\n"
"    # store RSP (pointing to context-data) in first argument (x0).\n"
"    # STR cannot have sp as a target register\n"
"    mov  x4, sp\n"
"    str  x4, [x0]\n"
"    # restore RSP (pointing to context-data) from A2 (x1)\n"
"    mov  sp, x1\n"
"#    # test if fpu env should be preserved\n"
"#    cmp  w3, #0\n"
"#    b.eq  2f\n"
"    # load d8 - d15\n"
"    ldp  d8,  d9,  [sp, #0x00]\n"
"    ldp  d10, d11, [sp, #0x10]\n"
"    ldp  d12, d13, [sp, #0x20]\n"
"    ldp  d14, d15, [sp, #0x30]\n"
"2:\n"
"    # load x19-x30\n"
"    ldp  x19, x20, [sp, #0x40]\n"
"    ldp  x21, x22, [sp, #0x50]\n"
"    ldp  x23, x24, [sp, #0x60]\n"
"    ldp  x25, x26, [sp, #0x70]\n"
"    ldp  x27, x28, [sp, #0x80]\n"
"    ldp  x29, x30, [sp, #0x90]\n"
"    # use third arg as return value after jump\n"
"    # and as first arg in context function\n"
"    mov  x0, x2\n"
"    # load pc\n"
"    ldr  x4, [sp, #0xa0]\n"
"    # restore stack from GP + FPU\n"
"    add  sp, sp, #0xb0\n"
"    ret x4\n"
".size   jump_fcontext,.-jump_fcontext\n"
"# Mark that we don't need executable stack.\n"
".section .note.GNU-stack,\"\",%progbits\n"
);

#endif

#if defined(LIBCONTEXT_PLATFORM_linux_arm64) && defined(LIBCONTEXT_COMPILER_gcc)
__asm (
".cpu    generic+fp+simd\n"
".text\n"
".align  2\n"
".global make_fcontext\n"
".type   make_fcontext, %function\n"
"make_fcontext:\n"
"    # shift address in x0 (allocated stack) to lower 16 byte boundary\n"
"    and x0, x0, ~0xF\n"
"    # reserve space for context-data on context-stack\n"
"    sub  x0, x0, #0xb0\n"
"    # third arg of make_fcontext() == address of context-function\n"
"    # store address as a PC to jump in\n"
"    str  x2, [x0, #0xa0]\n"
"    # save address of finish as return-address for context-function\n"
"    # will be entered after context-function returns (LR register)\n"
"    adr  x1, finish\n"
"    str  x1, [x0, #0x98]\n"
"    ret  x30 \n"
"finish:\n"
"    # exit code is zero\n"
"    mov  x0, #0\n"
"    # exit application\n"
"    bl  _exit\n"
".size   make_fcontext,.-make_fcontext\n"
"# Mark that we don't need executable stack.\n"
".section .note.GNU-stack,\"\",%progbits\n"
);

#endif
