AlejaDiez
commented
2 weeks ago You need to add the flag '-arch x86_64' to emulate the x86_64 architecture using Rosetta 2.
cc -o out -arch x86_64 out.s
You also need to modify the function name by adding "_" (_main) and remove ".type main, @function" and "@PLT". Here is the asm code for test 01:
.text
.LC0:
.string"%d\n"
_printint:
pushq %rbp
movq %rsp, %rbp
subq $16, %rsp
movl %edi, -4(%rbp)
movl -4(%rbp), %eax
movl %eax, %esi
leaq .LC0(%rip), %rdi
movl $0, %eax
call _printf
nop
leave
ret
.globl _main
_main:
pushq %rbp
movq %rsp, %rbp
movq $2, %r8
movq $3, %r9
movq $5, %r10
imulq %r10, %r9
addq %r9, %r8
movq $8, %r9
movq $3, %r10
movq %r9, %rax
cqo
idivq %r10
movq %rax, %r9
subq %r9, %r8
movq %r8, %rdi
call _printint
movl $0, %eax
popq %rbp
ret
I have been learning the chapter of
04_Assembly. According to theREADME.md, after I typedcc -o comp1 -g cg.c expr.c gen.c interp.c main.c scan.c tree.cand./comp1 input01, I got an output15and a fileout.s:After that, I got an error. If i typed
cc -o out out.s,I got :out.s:5:8: error: unknown token in expression pushq %rbp ^ out.s:5:8: error: invalid operand pushq %rbp ^ out.s:6:7: error: unknown token in expression movq %rsp, %rbp ^ out.s:6:7: error: invalid operand movq %rsp, %rbp ^ out.s:7:12: error: unknown token in expression subq $16, %rsp ^ out.s:7:12: error: invalid operand subq $16, %rsp ^ out.s:8:7: error: unknown token in expression movl %edi, -4(%rbp) ^ out.s:8:7: error: invalid operand movl %edi, -4(%rbp) ^ out.s:9:9: error: unexpected token in argument list movl -4(%rbp), %eax ^ out.s:10:7: error: unknown token in expression movl %eax, %esi ^ out.s:10:7: error: invalid operand movl %eax, %esi ^ out.s:11:11: error: unexpected token in argument list leaq .LC0(%rip), %rdi ^ out.s:12:11: error: unknown token in expression movl $0, %eax ^ out.s:12:11: error: invalid operand movl $0, %eax ^ out.s:13:2: error: unrecognized instruction mnemonic, did you mean: casl? call printf@PLT ^ out.s:15:2: error: unrecognized instruction mnemonic leave ^ out.s:19:2: error: unknown directive .type main, @function ^ out.s:21:8: error: unknown token in expression pushq %rbp ^ out.s:21:8: error: invalid operand pushq %rbp ^ out.s:22:7: error: unknown token in expression movq %rsp, %rbp ^ out.s:22:7: error: invalid operand movq %rsp, %rbp ^ out.s:23:11: error: unknown token in expression movq $2, %r8 ^ out.s:23:11: error: invalid operand movq $2, %r8 ^ out.s:24:11: error: unknown token in expression movq $3, %r9 ^ out.s:24:11: error: invalid operand movq $3, %r9 ^ out.s:25:11: error: unknown token in expression movq $5, %r10 ^ out.s:25:11: error: invalid operand movq $5, %r10 ^ out.s:26:8: error: unknown token in expression imulq %r9, %r10 ^ out.s:26:8: error: invalid operand imulq %r9, %r10 ^ out.s:27:7: error: unknown token in expression addq %r8, %r10 ^ out.s:27:7: error: invalid operand addq %r8, %r10 ^ out.s:28:11: error: unknown token in expression movq $8, %r8 ^ out.s:28:11: error: invalid operand movq $8, %r8 ^ out.s:29:11: error: unknown token in expression movq $3, %r9 ^ out.s:29:11: error: invalid operand movq $3, %r9 ^ out.s:30:7: error: unknown token in expression movq %r8,%rax ^ out.s:30:7: error: invalid operand movq %r8,%rax ^ out.s:31:2: error: unrecognized instruction mnemonic cqo ^ out.s:32:8: error: unknown token in expression idivq %r9 ^ out.s:32:8: error: invalid operand idivq %r9 ^ out.s:33:7: error: unknown token in expression movq %rax,%r8 ^ out.s:33:7: error: invalid operand movq %rax,%r8 ^ out.s:34:7: error: unknown token in expression subq %r8, %r10 ^ out.s:34:7: error: invalid operand subq %r8, %r10 ^ out.s:35:7: error: unknown token in expression movq %r10, %rdi ^ out.s:35:7: error: invalid operand movq %r10, %rdi ^ out.s:36:2: error: unrecognized instruction mnemonic, did you mean: casl? call printint ^ out.s:37:11: error: unknown token in expression movl $0, %eax ^ out.s:37:11: error: invalid operand movl $0, %eax ^ out.s:38:7: error: unknown token in expression popq %rbp ^ out.s:38:7: error: invalid operand popq %rbp ^. I realized that my platform is arm. So, I downloaded x86_64-elf-gcc, and I got:/opt/homebrew/opt/x86_64-elf-binutils/bin/x86_64-elf-ld: cannot find crt0.o: No such file or directory /opt/homebrew/opt/x86_64-elf-binutils/bin/x86_64-elf-ld: cannot find -lc: No such file or directory collect2: error: ld returned 1 exit status.Is there any way to help me solve this?
My enviroment: macOS 14.5 with m1 I guess qemu can be used to run my x86_64 code?