[Bug general/5329] New: LinuxHost does not deal with a missing DT_DEBUG -> r_debug (ie points to 0x0)

[Bug general/5329] New: LinuxHost does not deal with a missing DT_DEBUG -> r_debug (ie points to 0x0)

[pmuldoon at redhat dot com]

Theory: If a process is blocked at entry-point, as DaemonBlockedAtEntry() does,
the dynamic linker has not built this information yet. DT_DEBUG points to 0x0,
not to r_debug, which does not allow LinuxHost to find the Linkmap table to
build the metadata.

If a process is specified, and rich metadata cannot be built, should the
LinuxHost revert to basic metadata, or just completely abort?

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           Summary: LinuxHost does not deal with a missing DT_DEBUG ->
                    r_debug (ie points to 0x0)
           Product: frysk
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: general
        AssignedTo: frysk-bugzilla at sourceware dot org
        ReportedBy: pmuldoon at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=5329

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[Bug general/5329] LinuxHost does not deal with a missing DT_DEBUG -> r_debug (ie points to 0x0)

[pmuldoon at redhat dot com]

------- Additional Comments From pmuldoon at redhat dot com  2007-11-15 09:37 -------
"If a process is blocked at entry-point, and a core file is created from a
process at that time, as DaemonBlockedAtEntry() .... "

That's how it should read

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=5329

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[Bug general/5329] LinuxHost does not deal with a missing DT_DEBUG -> r_debug (ie points to 0x0)

[cagney at redhat dot com]

------- Additional Comments From cagney at redhat dot com  2007-11-15 15:19 -------
Nice catch; for a traditional core file, it's a "you loose" situtation.

Does/can fcore dump the maps table to a note section so that, for frysk it isn't
so much of a loose-loose?

Not dumping the maps page can be added to not dumping the full exe/args bugs.


-- 


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