user: 下面的汇编指令对应的C源代码是什么：

```asm
<usage>:
  endbr64
  sub    $0x8,%rsp
  lea    D8(%rip),%rdi
  call   <printf@plt>
  add    $0x8,%rsp
  ret
```

tool_calls: name: read_data
arguments: data_label: D8
type: string

tool: D8: slabinfo 4/15/2011. (c) 2007 sgi/(c) 2011 Linux Foundation.

slabinfo [-aADefhilnosrStTvz1LXBU] [N=K] [-dafzput] [slab-regexp]
-a|--aliases           Show aliases
-A|--activity          Most active slabs first
-B|--Bytes             Show size in bytes
-D|--display-active    Switch line format to activity
-e|--empty             Show empty slabs
-f|--first-alias       Show first alias
-h|--help              Show usage information
-i|--inverted          Inverted list
-l|--slabs             Show slabs
-L|--Loss              Sort by loss
-n|--numa              Show NUMA information
-N|--lines=K           Show the first K slabs
-o|--ops               Show kmem_cache_ops
-r|--report            Detailed report on single slabs
-s|--shrink            Shrink slabs
-S|--Size              Sort by size
-t|--tracking          Show alloc/free information
-T|--Totals            Show summary information
-U|--Unreclaim         Show unreclaimable slabs only
-v|--validate          Validate slabs
-z|--zero              Include empty slabs
-1|--1ref              Single reference
-X|--Xtotals           Show extended summary information

-d  | --debug          Switch off all debug options
-da | --debug=a        Switch on all debug options (--debug=FZPU)

-d[afzput] | --debug=[afzput]
    f | F              Sanity Checks (SLAB_CONSISTENCY_CHECKS)
    z | Z              Redzoning
    p | P              Poisoning
    u | U              Tracking
    t | T              Tracing


assistant: ```c
void usage(void) {
  printf("slabinfo 4/15/2011. (c) 2007 sgi/(c) 2011 Linux Foundation.\n\n"
         "slabinfo [-aADefhilnosrStTvz1LXBU] [N=K] [-dafzput] [slab-regexp]\n"
         "-a|--aliases           Show aliases\n"
         "-A|--activity          Most active slabs first\n"
         "-B|--Bytes             Show size in bytes\n"
         "-D|--display-active    Switch line format to activity\n"
         "-e|--empty             Show empty slabs\n"
         "-f|--first-alias       Show first alias\n"
         "-h|--help              Show usage information\n"
         "-i|--inverted          Inverted list\n"
         "-l|--slabs             Show slabs\n"
         "-L|--Loss              Sort by loss\n"
         "-n|--numa              Show NUMA information\n"
         "-N|--lines=K           Show the first K slabs\n"
         "-o|--ops               Show kmem_cache_ops\n"
         "-r|--report            Detailed report on single slabs\n"
         "-s|--shrink            Shrink slabs\n"
         "-S|--Size              Sort by size\n"
         "-t|--tracking          Show alloc/free information\n"
         "-T|--Totals            Show summary information\n"
         "-U|--Unreclaim         Show unreclaimable slabs only\n"
         "-v|--validate          Validate slabs\n"
         "-z|--zero              Include empty slabs\n"
         "-1|--1ref              Single reference\n"
         "-X|--Xtotals           Show extended summary information\n"
         "\n"
         "-d  | --debug          Switch off all debug options\n"
         "-da | --debug=a        Switch on all debug options (--debug=FZPU)\n"
         "\n"
         "-d[afzput] | --debug=[afzput]\n"
         "    f | F              Sanity Checks (SLAB_CONSISTENCY_CHECKS)\n"
         "    z | Z              Redzoning\n"
         "    p | P              Poisoning\n"
         "    u | U              Tracking\n"
         "    t | T              Tracing\n");
}
```