GDB/LLDB在指定模块/共享库的所有函数处中断

Question

在lldb中，我得到了help breakpoint set

       -a <address-expression> ( --address <address-expression> )
        Set the breakpoint at the specified address.  If the address maps uniquely to a particular binary, then the address will be converted to a "file" address, so that the
        breakpoint will track that binary+offset no matter where the binary eventually loads.  Alternately, if you also specify the module - with the -s option - then the
        address will be treated as a file address in that module, and resolved accordingly.  Again, this will allow lldb to track that offset on subsequent reloads.  The
        module need not have been loaded at the time you specify this breakpoint, and will get resolved when the module is loaded.

和

       -r <regular-expression> ( --func-regex <regular-expression> )
        Set the breakpoint by function name, evaluating a regular-expression to find the function name(s).

和

   -s <shlib-name> ( --shlib <shlib-name> )
        Set the breakpoint only in this shared library.  Can repeat this option multiple times to specify multiple shared libraries.

现在，我想在指定模块/dylib的每个函数上设置断点，您可以在命令image list -f的结果中找到这些断点。

以libobjc.A.dylib和MyOwn.dylib为例。我尝试了以下命令，但失败了：

(lldb) breakpoint set -r libobjc.A.dylib
Breakpoint 1: no locations (pending).
WARNING:  Unable to resolve breakpoint to any actual locations.

(lldb) b +[ThunderManager load]
Breakpoint 2: where = MyOwn.dylib`+[ThunderManager load] +16 at ThunderManager.m:20, address = 0x000000010489f274

(lldb) breakpoint set -r MyOwn.dylib`*
Breakpoint 3: no locations (pending).
WARNING:  Unable to resolve breakpoint to any actual locations.

我希望lldb在模块libobjc.A.dylib或MyOwn.dylib的所有函数，或任何其他指定的已加载模块/共享库中获得中断。如何在lldb中设置断点

Answer 1

(lldb) break set -r . -s libobjc.A.dylib

-s选项接受共享库作为其值，这将断点限制为指定的共享库。可以多次指定-s选项，以指定要包括在断点搜索中的多个共享库。

-r选项的值是一个正则表达式；如果符号名称与该表达式匹配，则它将包含在断点中。.匹配所有内容。

lldb教程：

http://lldb.llvm.org/tutorial.html

从描述lldb命令的结构开始，您可能会发现这些命令对您很有帮助。