在使用gdb调试核心转储时指定glibc

Question

我有一个程序崩溃在RHEL6.5，我也有一个核心文件。

我想在RHEL6.4上调试它，但是它有另一个版本的glibc。我把glibc.so.6从RHEL6.5放到lib/目录，但不能设置gdb来使用它：

[nskdvlp@srv2-csd-mong01 snmp_int]$ LD_LIBRARY_PATH=/u01/app/maa/snmp_int/lib gdb bin/snmp_int
Reading symbols from /u01/app/maa/snmp_int/bin/snmp_int...done.
(gdb) info sharedlibrary
No shared libraries loaded at this time.
(gdb) set solib-search-path lib
warning: .dynamic section for "/lib64/libc.so.6" is not at the expected address (wrong library or version mismatch?)
Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /u01/app/maa/snmp_int/lib/libsnmp_int_snmp.so.6.0.5...done.
Loaded symbols for /u01/app/maa/snmp_int/lib/libsnmp_int_snmp.so.6.0.5
(gdb) core core.110358
[New Thread 110358]
[New Thread 110367]
warning: .dynamic section for "/lib64/libc.so.6" is not at the expected address (wrong library or version mismatch?)
warning: Could not load shared library symbols for (0x%0*Zx)
.
Do you need "set solib-search-path" or "set sysroot"?
Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libdl.so.2
(gdb) bt
#0  0x0000003e93a32925 in ?? ()
#1  0x0000003e93a3408d in ?? ()
#2  0x0000000000000000 in ?? ()

其他.so库从lib/很好地加载。

Answer 1

我把glibc.so.6从RHEL6.5放到lib/目录，但不能设置gdb来使用它：

没有像glibc.so.6这样的东西。你是说libc.so.6。

这还远远不够:您需要来自生成核心的系统的所有库和动态加载程序。有关您需要做的事情，请参阅此answer。