[Bug c++/30784] New: Single stepping until exit from function _ZN6shibsp8SPConfig4initEPKcS2_@plt, which has no line number information

["koteswararao18 at gmail dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=30784

            Bug ID: 30784
           Summary: Single stepping until exit from function
                    _ZN6shibsp8SPConfig4initEPKcS2_@plt, which has no line
                    number information
           Product: gdb
           Version: 12.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
          Assignee: unassigned at sourceware dot org
          Reporter: koteswararao18 at gmail dot com
  Target Milestone: ---

Hi

built shibboleth-sp-3.3.0 package by passing '-g' option to enable debug
symbols.
but gdb fails with below error when break point is set in SPConfig::init()
(shibboleth-sp-3.3.0/shibsp/SPConfig.cpp)
{{
(gdb) n

Thread 1 "dbd" hit Breakpoint 3, 0x00007ffff132bf50 in
shibsp::SPConfig::init(char const*, char const*)@plt () from
/lib64/libshibsp-lite.so.10
(gdb) n
Single stepping until exit from function _ZN6shibsp8SPConfig4initEPKcS2_@plt,
which has no line number information.
0x00007ffff1329020 in ?? () from /lib64/libshibsp-lite.so.10
}}
libs build using shiboleth-sp-3.3.0 are given below.
{{
lrwxrwxrwx 1 root root       24 Aug 20 05:48 libshibsp-lite.so ->
libshibsp-lite.so.10.0.3
lrwxrwxrwx 1 root root       24 Aug 20 05:48 libshibsp-lite.so.10 ->
libshibsp-lite.so.10.0.3
-rwxr-xr-x 1 root root 24714944 Aug 20 05:48 libshibsp-lite.so.10.0.3
lrwxrwxrwx 1 root root       19 Aug 20 05:47 libshibsp.so ->
libshibsp.so.10.0.3
lrwxrwxrwx 1 root root       19 Aug 20 05:47 libshibsp.so.10 ->
libshibsp.so.10.0.3
-rwxr-xr-x 1 root root 57520408 Aug 20 05:47 libshibsp.so.10.0.3
}}
shibboleth-sp-3.3.0/shibsp$ file .libs/libshibsp.so.10.0.3
.libs/libshibsp.so.10.0.3: ELF 64-bit LSB shared object, x86-64, version 1
(GNU/Linux), dynamically linked, with debug_info, not stripped

shibsp$ file .libs/libshibsp-lite.so.10.0.3
.libs/libshibsp-lite.so.10.0.3: ELF 64-bit LSB shared object, x86-64, version 1
(GNU/Linux), dynamically linked, with debug_info, not stripped
shibboleth-sp-3.3.0/shibsp$
}}
is it required to load above so file using gdb command before setting
breakpoint ? or symbol links to .so files is causing failure?
any insight in to the isuse?

regards
koti

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