[Bug libc/964] New: Symbol resolution on the dopened libraries doesn't happen from the dependent libraries

[Bug libc/964] New: Symbol resolution on the dopened libraries doesn't happen from the dependent libraries

[jjaimon at novell dot com]

The man page for dlopen says 
"External  references in the library are resolved using the libraries in that
library's dependency  list  and  any  other  libraries  previously opened  with
 the  RTLD_GLOBAL flag.  If the executable was linked with the flag "-rdynamic"
(or, synonymously, "--export-dynamic"),  then  the global  symbols  in  the
executable will also be used to resolve references in a dynamically loaded library"
However, the symbol resoultion within the dlopened libraries goes to the binary
level and start searching down.  For eg.
             Application
                  /\
                 /  \
          libopen    libpam
                       \
                        \dlopen()
                         \
                         liblum
                           \
                            \
                            libnvl
both libopen and libnvl exports same set of APIs.  When liblum calls one of the
API exported by libnvl, the expectation is that, the call will get resolved from
libnvl since liblum is dlopened by libpam and libnvl is dynamically linked with
liblum.  However, the symbol gets resolved from libopen which is wrong as per
the man page.

-- 
           Summary: Symbol resolution on the dopened libraries doesn't
                    happen from the dependent libraries
           Product: glibc
           Version: 2.3.4
            Status: NEW
          Severity: critical
          Priority: P1
         Component: libc
        AssignedTo: gotom at debian dot or dot jp
        ReportedBy: jjaimon at novell dot com
                CC: glibc-bugs at sources dot redhat dot com


http://sources.redhat.com/bugzilla/show_bug.cgi?id=964

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[Bug libc/964] Symbol resolution on the dlopen'ed libraries doesn't happen from the dependent libraries

[jjaimon at novell dot com]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Symbol resolution on the    |Symbol resolution on the
                   |dopened libraries doesn't   |dlopen'ed libraries doesn't
                   |happen from the dependent   |happen from the dependent
                   |libraries                   |libraries


http://sources.redhat.com/bugzilla/show_bug.cgi?id=964

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[Bug libc/964] Symbol resolution on the dlopen'ed libraries doesn't happen from the dependent libraries

[gotom at debian dot or dot jp]

------- Additional Comments From gotom at debian dot or dot jp  2005-06-01 14:52 -------
Glibc provides info, but it does not provide manpages you
pointed out.  Please contact to the appropriate manpage
authors about your report instead of us.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID


http://sources.redhat.com/bugzilla/show_bug.cgi?id=964

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