user: 下面的汇编指令对应的C源代码是什么：

```asm
<child_execute_job>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %edi,-0x34(%rbp)
  mov    %esi,-0x38(%rbp)
  mov    %rdx,-0x40(%rbp)
  mov    %rcx,-0x48(%rbp)
  mov    %r8,-0x50(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  cmpl   $0x0,-0x34(%rbp)
  je     L56
  mov    -0x34(%rbp),%eax
  mov    $0x0,%esi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <dup2@plt>
L56:
  cmpl   $0x1,-0x38(%rbp)
  je     L99
  mov    -0x38(%rbp),%eax
  mov    $0x1,%esi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <dup2@plt>
L99:
  mov    $0x0,%eax
  call   <getdtablesize@plt>
  mov    %eax,-0x2c(%rbp)
  mov    $0x3,%ebx
  jmp    L28
L19:
  mov    %ebx,%edi
  mov    $0x0,%eax
  call   <close@plt>
  add    $0x1,%ebx
L28:
  cmp    -0x2c(%rbp),%ebx
  jl     L19
  mov    $0x0,%eax
  call   <unblock_children@plt>
  mov    -0x40(%rbp),%rax
  mov    %rax,%rsi
  lea    D26(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <allocated_variable_expand_for_file@plt>
  cltq
  mov    %rax,-0x28(%rbp)
  mov    -0x28(%rbp),%rdx
  mov    -0x50(%rbp),%rcx
  mov    -0x48(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <exec_command@plt>
  movl   $0x0,-0x30(%rbp)
  jmp    L16
L37:
  addl   $0x1,-0x30(%rbp)
L16:
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rax
  test   %rax,%rax
  jne    L37
  mov    -0x30(%rbp),%eax
  add    $0x3,%eax
  cltq
  shl    $0x3,%rax
  lea    0x8(%rax),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%ebx
  mov    $0x0,%edx
  div    %rbx
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L70:
  cmp    %rdx,%rsp
  je     L62
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L70
L62:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L54
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L54:
  mov    %rsp,%rax
  add    $0xf,%rax
  shr    $0x4,%rax
  shl    $0x4,%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x40(%rbp),%rax
  mov    %rax,%rsi
  lea    D24(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <variable_expand_for_file@plt>
  cltq
  mov    %rax,%rdx
  mov    -0x20(%rbp),%rax
  mov    %rdx,(%rax)
  mov    -0x20(%rbp),%rax
  add    $0x8,%rax
  lea    D14(%rip),%rdx
  mov    %rdx,(%rax)
L21:
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    -0x30(%rbp),%edx
  add    $0x2,%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,8),%rcx
  mov    -0x20(%rbp),%rdx
  add    %rcx,%rdx
  mov    (%rax),%rax
  mov    %rax,(%rdx)
  mov    -0x30(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0x30(%rbp)
  test   %eax,%eax
  jg     L21
  mov    -0x28(%rbp),%rdx
  mov    -0x50(%rbp),%rcx
  mov    -0x20(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <exec_command@plt>
  mov    $0x7f,%edi
  call   <_exit@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D26
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D24
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D14
type_infered: string

tool: D26: $(PATH)

tool: D24: $(SHELL)

tool: D14: -c

assistant: ```c
void child_execute_job(stdin_fd, stdout_fd, file, argv, envp) int stdin_fd, stdout_fd;
struct file *file;
char **argv, **envp;
{
  char *path;
  if (stdin_fd != 0)
    (void)dup2(stdin_fd, 0);
  if (stdout_fd != 1)
    (void)dup2(stdout_fd, 1);
  {
    register int d;
    int max = getdtablesize();
    for (d = 3; d < max; ++d)
      (void)close(d);
  }
  unblock_children();
  path = allocated_variable_expand_for_file("$(PATH)", file);
  exec_command(argv, envp, path);
  {
    int argc;
    char **shell_argv;
    argc = 0;
    while (argv[argc] != 0)
      ++argc;
    shell_argv = (char **)__builtin_alloca((2 + argc + 1) * sizeof(char *));
    shell_argv[0] = variable_expand_for_file("$(SHELL)", file);
    shell_argv[1] = "-c";
    do
      shell_argv[2 + argc] = argv[argc];
    while (argc-- > 0);
    exec_command(shell_argv, envp, path);
    _exit(127);
  }
}
```