我在JavaScript中编写了这个简单的代码，并使用d8来显示汇编代码。现在，我想执行该汇编代码，但我无法做到。
这是我的代码
print('Hello')
这是我从d8获得的集会
--- Raw source ---
print('Hello');
--- Code ---
source_position = 0
kind = FUNCTION
compiler = full-codegen
Instructions (size = 180)
0x13fb4a04740 0 55 push rbp
0x13fb4a04741 1 4889e5 REX.W movq rbp,rsp
0x13fb4a04744 4 56 push rsi
0x13fb4a04745 5 57 push rdi
0x13fb4a04746 6 488b4f2f REX.W movq rcx,[rdi+0x2f]
0x13fb4a0474a 10 488b490f REX.W movq rcx,[rcx+0xf]
0x13fb4a0474e 14 83411b01 addl [rcx+0x1b],0x1
0x13fb4a04752 18 41ff75a0 push [r13-0x60]
0x13fb4a04756 22 493ba5200c0000 REX.W cmpq rsp,[r13+0xc20]
0x13fb4a0475d 29 7305 jnc 36 (0x13fb4a04764)
0x13fb4a0475f 31 e8dce2f4ff call StackCheck (0x13fb4952a40) ;; code: BUILTIN
0x13fb4a04764 36 48b80000000004000000 REX.W movq rax,0x400000000
0x13fb4a0476e 46 e86dfcffff call 0x13fb4a043e0 ;; code: LOAD_GLOBAL_IC
0x13fb4a04773 51 50 push rax
0x13fb4a04774 52 49ba1123f8ee15360000 REX.W movq r10,0x3615eef82311 ;; object: 0x3615eef82311 <undefined>
0x13fb4a0477e 62 4152 push r10
0x13fb4a04780 64 49ba19b92ab6eb2a0000 REX.W movq r10,0x2aebb62ab919 ;; object: 0x2aebb62ab919 <String[5]: Hello>
0x13fb4a0478a 74 4152 push r10
0x13fb4a0478c 76 48ba0000000002000000 REX.W movq rdx,0x200000000
0x13fb4a04796 86 488b7c2410 REX.W movq rdi,[rsp+0x10]
0x13fb4a0479b 91 e820ffffff call 0x13fb4a046c0 ;; code: CALL_IC
0x13fb4a047a0 96 488b75f8 REX.W movq rsi,[rbp-0x8]
0x13fb4a047a4 100 4883c408 REX.W addq rsp,0x8
0x13fb4a047a8 104 488945e8 REX.W movq [rbp-0x18],rax
0x13fb4a047ac 108 488b45e8 REX.W movq rax,[rbp-0x18]
0x13fb4a047b0 112 48bbd1ba2ab6eb2a0000 REX.W movq rbx,0x2aebb62abad1 ;; object: 0x2aebb62abad1 Cell for 6144
0x13fb4a047ba 122 83430bd1 addl [rbx+0xb],0xd1
0x13fb4a047be 126 791f jns 159 (0x13fb4a047df)
0x13fb4a047c0 128 50 push rax
0x13fb4a047c1 129 e8fae1f4ff call InterruptCheck (0x13fb49529c0) ;; code: BUILTIN
0x13fb4a047c6 134 58 pop rax
0x13fb4a047c7 135 48bbd1ba2ab6eb2a0000 REX.W movq rbx,0x2aebb62abad1 ;; object: 0x2aebb62abad1 Cell for 6144
0x13fb4a047d1 145 49ba0000000000180000 REX.W movq r10,0x180000000000
0x13fb4a047db 155 4c895307 REX.W movq [rbx+0x7],r10
0x13fb4a047df 159 c9 leavel
0x13fb4a047e0 160 c20800 ret 0x8
0x13fb4a047e3 163 498b45a0 REX.W movq rax,[r13-0x60]
0x13fb4a047e7 167 e9c4ffffff jmp 112 (0x13fb4a047b0)
0x13fb4a047ec 172 0f1f4000 nop
现在我想执行该汇编代码我收到此错误：
cc -s print.s
print.s：1：1：错误：64位模式不支持32位绝对寻址
这是我的print.s
push rbp
movq rbp,rsp
push rsi
push rdi
movq rcx,[rdi+0x2f]
movq rcx,[rcx+0xf]
addl [rcx+0x1b],0x1
push [r13-0x60]
cmpq rsp,[r13+0xc20]
jnc 36
call StackCheck
movq rax,0x400000000
call 0x13fb4a043e0
push rax
movq r10,0x3615eef82311
push r10
movq r10,0x2aebb62ab919
push r10
movq rdx,0x200000000
movq rdi,[rsp+0x10]
call 0x13fb4a046c0
movq rsi,[rbp-0x8]
addq rsp,0x8
movq [rbp-0x18],rax
movq rax,[rbp-0x18]
movq rbx,0x2aebb62abad1
addl [rbx+0xb],0xd1
jns 159
push rax
call InterruptCheck
pop rax
movq rbx,0x2aebb62abad1
movq r10,0x180000000000
movq [rbx+0x7],r10
leavel
ret 0x8
movq rax,[r13-0x60]
jmp 112
nop
答案 0 :(得分：1)
你不能从带有固定指针的程序中获取片段，复制粘贴并希望它能够工作。
您的代码段永远不会有效 它引用的绝对地址仅在执行它的原始程序的上下文中有效 下一次原始程序执行时，由于ASLR，地址可能会有所不同，因为OSX中的所有程序都必须是可重定位的;即固定地址在OSX中存在 在任何情况下，您都指向了复制粘贴代码段中根本不存在的运行时代码。
你需要学习如何写一个独立的世界＆＃39;装配程序。
有100个教程详细说明如何执行此操作，例如：http://peter.michaux.ca/articles/assembly-hello-world-for-os-x
hello.asm - a "hello, world" program using NASM section .text global mystart ; make the main function externally visible mystart: ; 1 print "hello, world" ; 1a prepare the arguments for the system call to write push dword mylen ; message length push dword mymsg ; message to write push dword 1 ; file descriptor value ; 1b make the system call to write mov eax, 0x4 ; system call number for write sub esp, 4 ; OS X (and BSD) system calls needs "extra space" on stack int 0x80 ; make the actual system call ; 1c clean up the stack add esp, 16 ; 3 args * 4 bytes/arg + 4 bytes extra space = 16 bytes ; 2 exit the program ; 2a prepare the argument for the sys call to exit push dword 0 ; exit status returned to the operating system ; 2b make the call to sys call to exit mov eax, 0x1 ; system call number for exit sub esp, 4 ; OS X (and BSD) system calls needs "extra space" on stack int 0x80 ; make the system call ; 2c no need to clean up the stack because no code here would executed: already exited section .data mymsg db "hello, world", 0xa ; string with a carriage-return mylen equ $-mymsg ; string length in bytes
如果您想编写在OSX下运行的汇编代码，您还需要学习how the OSX API works。