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712 lines (677 loc) · 17 KB
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/*
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 "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