今天在HP-UX上调试代码时，动态库下不了断点，提示如下信息
warning: Cannot insert breakpoint 0: in /lib/xxx_codeD.sl
warning: This is because your shared libraries are
warning: not mapped private. To attach to a process
warning: and debug its shared libraries you must
warning: prepare the program with
warning: "/opt/langtools/bin/pxdb -s on "
warning: or "chatr +dbg enable ".
warning: Add this to your Makefile for debug builds
warning: so that each rebuilt debuggable a.out would
warning: have this feature turned on.
Temporarily disabling shared library breakpoints:0
根据提示执行
chatr +dbg enable xxx_codeD.sl
再次重新加载动态库，可以下断点.
另外，在64位机器下，应使用gdb64 ，而不是gdb
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