user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<kmp_search>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    %rcx,-0x40(%rbp)
  mov    %r8,-0x48(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x20(%rbp)
  movl   $0x0,-0x1c(%rbp)
  movl   $0x0,-0x18(%rbp)
  movl   $0x20,-0x14(%rbp)
  mov    -0x14(%rbp),%eax
  mov    %eax,%esi
  mov    $0x8,%edi
  call   <calloc@plt>
  mov    -0x48(%rbp),%rdx
  mov    %rax,(%rdx)
  mov    -0x48(%rbp),%rax
  mov    (%rax),%rax
  test   %rax,%rax
  jne    L107
  mov    $0xffffffff,%eax
  jmp    L81
L107:
  mov    -0x40(%rbp),%rdx
  mov    -0x30(%rbp),%rcx
  lea    -0x10(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <kmp_table@plt>
  jmp    L30
L16:
  mov    -0x18(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    -0x1c(%rbp),%ecx
  mov    -0x18(%rbp),%eax
  add    %ecx,%eax
  movslq %eax,%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  cmp    %al,%dl
  jne    L85
  mov    -0x18(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x18(%rbp)
  cltq
  mov    -0x40(%rbp),%rdx
  sub    $0x1,%rdx
  cmp    %rdx,%rax
  jne    L30
  mov    -0x20(%rbp),%eax
  add    $0x1,%eax
  cmp    %eax,-0x14(%rbp)
  jg     L63
  addl   $0x8,-0x14(%rbp)
  mov    -0x14(%rbp),%eax
  cltq
  shl    $0x3,%eax
  mov    %eax,%edx
  mov    -0x48(%rbp),%rax
  mov    (%rax),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    -0x48(%rbp),%rdx
  mov    %rax,(%rdx)
L63:
  mov    -0x48(%rbp),%rax
  mov    (%rax),%rcx
  mov    -0x20(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x20(%rbp)
  cltq
  shl    $0x3,%rax
  lea    (%rcx,%rax,1),%rdx
  mov    -0x1c(%rbp),%eax
  cltq
  mov    %rax,(%rdx)
  jmp    L30
L85:
  mov    -0x10(%rbp),%rdx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  test   %eax,%eax
  js     L80
  mov    -0x10(%rbp),%rdx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x10(%rbp),%rdx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x18(%rbp),%eax
  sub    %edx,%eax
  add    %eax,-0x1c(%rbp)
  jmp    L30
L80:
  movl   $0x0,-0x18(%rbp)
  addl   $0x1,-0x1c(%rbp)
L30:
  mov    -0x1c(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltq
  cmp    %rax,-0x38(%rbp)
  ja     L16
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x20(%rbp),%eax
L81:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L106
  call   <__stack_chk_fail@plt>
L106:
  leave
  ret
```

assistant: ```c
int kmp_search(const char *text, const char *term, size_t text_len, size_t term_len, size_t **pos_array) {
  int *table;
  int c = 0, m = 0, i = 0;
  int l = 32;
  if ((*pos_array = calloc(sizeof(size_t), l)) == NULL)
    return -1;
  kmp_table(&table, term, term_len);
  while ((m + i) < text_len) {
    if (term[i] == text[m + i]) {
      if (i++ == (term_len - 1)) {
        if ((c + 1) >= l) {
          l += 8;
          *pos_array = realloc(*pos_array, l * sizeof(size_t));
        }
        (*pos_array)[c++] = m;
      }
    } else {
      if (table[i] > -1) {
        i = table[i];
        m += (i - table[i]);
      } else {
        i = 0;
        m++;
      }
    }
  }
  free(table);
  return c;
}
```