351 lines
7.7 KiB
Markdown
351 lines
7.7 KiB
Markdown
# Генерация и анализ ассемблерного кода программы на C
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---
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## main.c
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```c
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void inc(int *p){(*p)++;}
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void dec(int *p){(*p)--;}
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int main(){
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int x=10;
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inc(&x);
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dec(&x);
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return 0;
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}
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```
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---
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## linux_x86_64_numbered.s
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```asm
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1 .file "main.c"
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2 .text
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3 .globl inc
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4 .type inc, @function
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5 inc:
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6 .LFB0:
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7 .cfi_startproc
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8 pushq %rbp
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9 .cfi_def_cfa_offset 16
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10 .cfi_offset 6, -16
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11 movq %rsp, %rbp
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12 .cfi_def_cfa_register 6
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13 movq %rdi, -8(%rbp)
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14 movq -8(%rbp), %rax
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15 movl (%rax), %eax
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16 leal 1(%rax), %edx
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17 movq -8(%rbp), %rax
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18 movl %edx, (%rax)
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19 nop
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20 popq %rbp
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21 .cfi_def_cfa 7, 8
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22 ret
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23 .cfi_endproc
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24 .LFE0:
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25 .size inc, .-inc
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26 .globl dec
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27 .type dec, @function
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28 dec:
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29 .LFB1:
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30 .cfi_startproc
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31 pushq %rbp
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32 .cfi_def_cfa_offset 16
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33 .cfi_offset 6, -16
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34 movq %rsp, %rbp
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35 .cfi_def_cfa_register 6
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36 movq %rdi, -8(%rbp)
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37 movq -8(%rbp), %rax
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38 movl (%rax), %eax
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39 leal -1(%rax), %edx
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40 movq -8(%rbp), %rax
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41 movl %edx, (%rax)
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42 nop
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43 popq %rbp
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44 .cfi_def_cfa 7, 8
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45 ret
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46 .cfi_endproc
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47 .LFE1:
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48 .size dec, .-dec
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49 .globl main
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50 .type main, @function
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51 main:
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52 .LFB2:
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53 .cfi_startproc
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54 pushq %rbp
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55 .cfi_def_cfa_offset 16
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56 .cfi_offset 6, -16
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57 movq %rsp, %rbp
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58 .cfi_def_cfa_register 6
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59 subq $16, %rsp
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60 movq %fs:40, %rax
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61 movq %rax, -8(%rbp)
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62 xorl %eax, %eax
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63 movl $10, -12(%rbp)
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64 leaq -12(%rbp), %rax
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65 movq %rax, %rdi
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66 call inc
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67 leaq -12(%rbp), %rax
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68 movq %rax, %rdi
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69 call dec
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70 movl $0, %eax
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71 movq -8(%rbp), %rdx
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72 subq %fs:40, %rdx
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73 je .L5
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74 call __stack_chk_fail@PLT
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75 .L5:
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76 leave
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77 .cfi_def_cfa 7, 8
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78 ret
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79 .cfi_endproc
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80 .LFE2:
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81 .size main, .-main
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82 .ident "GCC: (GNU) 15.2.1 20251112"
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83 .section .note.GNU-stack,"",@progbits
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```
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---
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# windows_x86_64_numbered.s
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```asm
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1 .file "main.c"
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2 .text
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3 .globl inc
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4 .def inc; .scl 2; .type 32; .endef
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5 .seh_proc inc
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6 inc:
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7 pushq %rbp
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8 .seh_pushreg %rbp
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9 movq %rsp, %rbp
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10 .seh_setframe %rbp, 0
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11 .seh_endprologue
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12 movq %rcx, 16(%rbp)
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13 movq 16(%rbp), %rax
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14 movl (%rax), %eax
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15 leal 1(%rax), %edx
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16 movq 16(%rbp), %rax
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17 movl %edx, (%rax)
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18 nop
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19 popq %rbp
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20 ret
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21 .seh_endproc
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22 .globl dec
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23 .def dec; .scl 2; .type 32; .endef
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24 .seh_proc dec
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25 dec:
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26 pushq %rbp
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27 .seh_pushreg %rbp
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28 movq %rsp, %rbp
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29 .seh_setframe %rbp, 0
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30 .seh_endprologue
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31 movq %rcx, 16(%rbp)
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32 movq 16(%rbp), %rax
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33 movl (%rax), %eax
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34 leal -1(%rax), %edx
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35 movq 16(%rbp), %rax
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36 movl %edx, (%rax)
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37 nop
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38 popq %rbp
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39 ret
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40 .seh_endproc
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41 .globl main
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42 .def main; .scl 2; .type 32; .endef
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43 .seh_proc main
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44 main:
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45 pushq %rbp
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46 .seh_pushreg %rbp
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47 movq %rsp, %rbp
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48 .seh_setframe %rbp, 0
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49 subq $48, %rsp
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50 .seh_stackalloc 48
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51 .seh_endprologue
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52 call __main
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53 movl $10, -4(%rbp)
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54 leaq -4(%rbp), %rax
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55 movq %rax, %rcx
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56 call inc
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57 leaq -4(%rbp), %rax
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58 movq %rax, %rcx
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59 call dec
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60 movl $0, %eax
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61 addq $48, %rsp
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62 popq %rbp
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63 ret
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64 .seh_endproc
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65 .def __main; .scl 2; .type 32; .endef
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66 .ident "GCC: (GNU) 15.2.0"
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```
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---
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# riscv64_numbered.s
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```asm
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1 .file "main.c"
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2 .option pic
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3 .attribute arch, "rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_zicsr2p0_zifencei2p0_zmmul1p0_zaamo1p0_zalrsc1p0_zca1p0_zcd1p0"
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4 .attribute unaligned_access, 0
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5 .attribute stack_align, 16
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6 .text
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7 .align 1
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8 .globl inc
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9 .type inc, @function
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10 inc:
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11 .LFB0:
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12 .cfi_startproc
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13 addi sp,sp,-32
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14 .cfi_def_cfa_offset 32
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15 sd ra,24(sp)
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16 sd s0,16(sp)
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17 .cfi_offset 1, -8
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18 .cfi_offset 8, -16
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19 addi s0,sp,32
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20 .cfi_def_cfa 8, 0
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21 sd a0,-24(s0)
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22 ld a5,-24(s0)
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23 lw a5,0(a5)
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24 addiw a5,a5,1
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25 sext.w a4,a5
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26 ld a5,-24(s0)
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27 sw a4,0(a5)
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28 nop
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29 ld ra,24(sp)
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30 .cfi_restore 1
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31 ld s0,16(sp)
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32 .cfi_restore 8
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33 .cfi_def_cfa 2, 32
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34 addi sp,sp,32
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35 .cfi_def_cfa_offset 0
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36 jr ra
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37 .cfi_endproc
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38 .LFE0:
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39 .size inc, .-inc
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40 .align 1
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41 .globl dec
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42 .type dec, @function
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43 dec:
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44 .LFB1:
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45 .cfi_startproc
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46 addi sp,sp,-32
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47 .cfi_def_cfa_offset 32
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48 sd ra,24(sp)
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49 sd s0,16(sp)
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50 .cfi_offset 1, -8
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51 .cfi_offset 8, -16
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52 addi s0,sp,32
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53 .cfi_def_cfa 8, 0
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54 sd a0,-24(s0)
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55 ld a5,-24(s0)
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56 lw a5,0(a5)
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57 addiw a5,a5,-1
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58 sext.w a4,a5
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59 ld a5,-24(s0)
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60 sw a4,0(a5)
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61 nop
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62 ld ra,24(sp)
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63 .cfi_restore 1
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64 ld s0,16(sp)
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65 .cfi_restore 8
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66 .cfi_def_cfa 2, 32
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67 addi sp,sp,32
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68 .cfi_def_cfa_offset 0
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69 jr ra
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70 .cfi_endproc
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71 .LFE1:
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72 .size dec, .-dec
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73 .align 1
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74 .globl main
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75 .type main, @function
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76 main:
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77 .LFB2:
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78 .cfi_startproc
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79 addi sp,sp,-32
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80 .cfi_def_cfa_offset 32
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81 sd ra,24(sp)
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82 sd s0,16(sp)
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83 .cfi_offset 1, -8
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84 .cfi_offset 8, -16
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85 addi s0,sp,32
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86 .cfi_def_cfa 8, 0
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87 li a5,10
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88 sw a5,-20(s0)
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89 addi a5,s0,-20
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90 mv a0,a5
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91 call inc
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92 addi a5,s0,-20
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93 mv a0,a5
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94 call dec
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95 li a5,0
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96 mv a0,a5
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97 ld ra,24(sp)
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98 .cfi_restore 1
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99 ld s0,16(sp)
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100 .cfi_restore 8
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101 .cfi_def_cfa 2, 32
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102 addi sp,sp,32
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103 .cfi_def_cfa_offset 0
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104 jr ra
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105 .cfi_endproc
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106 .LFE2:
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107 .size main, .-main
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108 .ident "GCC: (GNU) 15.1.0"
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109 .section .note.GNU-stack,"",@progbits
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```
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---
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## INFO
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---
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### gcc_version
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gcc (GCC) 15.2.1 20251112
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Copyright (C) 2025 Free Software Foundation, Inc.
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This is free software; see the source for copying conditions. There is NO
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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---
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### linux_gcc_version
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gcc (GCC) 15.2.1 20251112
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Copyright (C) 2025 Free Software Foundation, Inc.
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This is free software; see the source for copying conditions. There is NO
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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---
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### mingw_version
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x86_64-w64-mingw32-gcc (GCC) 15.2.0
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Copyright (C) 2025 Free Software Foundation, Inc.
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This is free software; see the source for copying conditions. There is NO
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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---
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### riscv_version
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riscv64-linux-gnu-gcc (GCC) 15.1.0
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Copyright (C) 2025 Free Software Foundation, Inc.
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This is free software; see the source for copying conditions. There is NO
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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---
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### sysinfo
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Linux archlinux 6.17.8-arch1-1 #1 SMP PREEMPT_DYNAMIC Fri, 14 Nov 2025 06:54:20 +0000 x86_64 GNU/Linux
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NAME="Arch Linux"
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PRETTY_NAME="Arch Linux"
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ID=arch
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BUILD_ID=rolling
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ANSI_COLOR="38;2;23;147;209"
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HOME_URL="https://archlinux.org/"
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DOCUMENTATION_URL="https://wiki.archlinux.org/"
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SUPPORT_URL="https://bbs.archlinux.org/"
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BUG_REPORT_URL="https://gitlab.archlinux.org/groups/archlinux/-/issues"
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PRIVACY_POLICY_URL="https://terms.archlinux.org/docs/privacy-policy/"
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LOGO=archlinux-logo
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