gdb布局asm在mac上不起作用？

$ gdb test

(gdb) start
Breakpoint 1 at 0x100000ec8
Starting program: /private/tmp/test 
Reading symbols for shared libraries +. done    
Breakpoint 1, 0x0000000100000ec8 in main ()

(gdb) layout asm
Undefined command: "layout".  Try "help".

$ gdbtui
-bash: gdbtui: command not found

Is layout and gdbtui不适用于Mac OS X？有哪些替代方案？

根据这个问题 https://stackoverflow.com/questions/6612133/no-tui-support-for-gdb-on-macmac 默认不支持 tui。所以你必须在启用 TUI 的情况下自己编译 gdb。