Mac 下调试 V8 的问题

在 mac 下编译了 v8 的 debug 版本。但是在用 gdb 调试的时候出现了 warning

warning: `/Users/hang/mine/v8/v8/out/debug/obj/d8/async-hooks-wrapper.o': file time stamp mismatch. warning: `/Users/hang/mine/v8/v8/out/debug/obj/d8/d8-console.o': file time stamp mismatch. warning: `/Users/hang/mine/v8/v8/out/debug/obj/d8/d8-js.o': file time stamp mismatch. warning: `/Users/hang/mine/v8/v8/out/debug/obj/d8/d8-platforms.o': file time stamp mismatch. warning: `/Users/hang/mine/v8/v8/out/debug/obj/d8/d8-posix.o': file time stamp mismatch. warning: `/Users/hang/mine/v8/v8/out/debug/obj/d8/d8-test.o': file time stamp mismatch. warning: `/Users/hang/mine/v8/v8/out/debug/obj/d8/d8.o': file time stamp mismatch. (No debugging symbols found in ./d8) 

尝试了好几种编译参数，这个 warning 始终存在。

另外 disas main 打印出来的函数名的显示也不够友好(指令为 call 的那一行)，linux 下是可以完整显示函数名：

(gdb) disas main Dump of assembler code for function main: 0x0000000100056a80 <+0>: push %rbp 0x0000000100056a81 <+1>: mov %rsp,%rbp 0x0000000100056a84 <+4>: sub $0x10,%rsp 0x0000000100056a88 <+8>: movl $0x0,-0x4(%rbp) 0x0000000100056a8f <+15>: mov %edi,-0x8(%rbp) 0x0000000100056a92 <+18>: mov %rsi,-0x10(%rbp) 0x0000000100056a96 <+22>: mov -0x8(%rbp),%edi 0x0000000100056a99 <+25>: mov -0x10(%rbp),%rsi 0x0000000100056a9d <+29>: call 0x100054cc0 <_ZN2v85Shell4MainEiPPc> 0x0000000100056aa2 <+34>: add $0x10,%rsp 0x0000000100056aa6 <+38>: pop %rbp 0x0000000100056aa7 <+39>: ret 0x0000000100056aa8 <+40>: nopl 0x0(%rax,%rax,1) End of assembler dump. 

有大佬知道这是什么原因么？