[Bug binutils/11983] New: libbfd reuses pointer passed to bfd_openr

[carlo at alinoe dot com]

When calling bfd_openr(filename, NULL), the filename pointer is stored
as-is and reused to reopen the bfd in the case of caching and multiple
opened bfd's. At VERY least this should be documented clearly :/

What I'm doing (a use case where the above causes problems) is:
Some initialization function opens /proc/self/maps and finds all
shared libraries, which are passed to bfd_openr. The filenames passed
are on the stack. Mysteriously, looking up source / linenumber info
starts failing if you open too many files.

The reason is that if too many bfd's are opened, they are closed and
reopened using the filename pointer, obviously resulting in ENOENT because
the location that the filename pointer is pointing to contains rubbish
in mean time.

-- 
           Summary: libbfd reuses pointer passed to bfd_openr
           Product: binutils
           Version: 2.20
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
        AssignedTo: unassigned at sources dot redhat dot com
        ReportedBy: carlo at alinoe dot com
                CC: bug-binutils at gnu dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=11983

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