关于lldb下条件断点

技能讨论
1

条件断点如下:br com add 1>po (char *)$r0>c>DONE

运行效果如下:
(lldb) po (char *)$r0
“hook1”

(lldb) c
Process 26623 resuming
Command #2 ‘c’ continued the target.
(lldb) po (char *)$r0
“hook2”

(lldb) c
Process 26623 resuming
Command #2 ‘c’ continued the target.
(lldb) po (char *)$r0
“hook3”

(lldb) c
Process 26623 resuming
Command #2 ‘c’ continued the target.
Process 26623 stopped

  • thread #1: tid = 0x2d5ed, 0x2cba03a4 CoreFoundation__CFRunLoopServiceMachPort + 284, queue = 'com.apple.main-thread', stop reason = EXC_BREAKPOINT (code=EXC_ARM_BREAKPOINT, subcode=0xdefe) frame #0: 0x2cba03a4 CoreFoundation__CFRunLoopServiceMachPort + 284
    CoreFoundation`__CFRunLoopServiceMachPort:
    → 0x2cba03a4 <+284>: trap
    0x2cba03a6 <+286>: nop

CoreFoundation`CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE:
0x2cba03a8 <+0>: push {r7, lr}
0x2cba03aa <+2>: mov r7, sp
(lldb)

后面就直接崩溃了，每次都这样 为啥呢？