[Bug gdb/10104] New: gcore fails on app w/ more than a page of DL symbols to load

[Bug gdb/10104] New: gcore fails on app w/ more than a page of DL symbols to load

[cjt at us dot ibm dot com]

As an example use the Counter.java and CounterTest.java from
http://www.isr.umd.edu/~austin/ence489c.d/threads.d/Making_A_Thread_Subclass/

o change the new Counter instantiation to use about 40 instead of 5 in
JavaTest.java.
o compile with "javac Counter.java CounterTest.java".
o run "java CounterTest" 
o attempt gcore with "gcore -o core <pid of java CounterTest>" )  

Results include:

(no debugging symbols found)
...
---Type <return> to continue, or q <return> to quit---
(no debugging symbols found)
...
gcore: failed to create core.31783

A fix for http://sourceware.org/bugzilla/show_bug.cgi?id=9591 would likely
resolve this issue.  But a simple workaround for the gcore script resolves the
issue for the gcore case:

diff -up gdb-6.8/gdb/gdb_gcore.sh.nopagination gdb-6.8/gdb/gdb_gcore.sh
--- gdb-6.8/gdb/gdb_gcore.sh.nopagination       2009-04-24 15:24:06.000000000 -0700
+++ gdb-6.8/gdb/gdb_gcore.sh    2009-04-24 15:24:20.000000000 -0700
@@ -63,6 +63,7 @@ for pid in $*
 do
        # Write gdb script for pid $pid.  
        cat >>$tmpfile <<EOF
+set pagination off
 attach $pid
 gcore $name.$pid
 detach

-- 
           Summary: gcore fails on app w/ more than a page of DL symbols to
                    load
           Product: gdb
           Version: 6.8
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: gdb
        AssignedTo: unassigned at sourceware dot org
        ReportedBy: cjt at us dot ibm dot com
                CC: gdb-prs at sourceware dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=10104

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[Bug gdb/10104] gcore fails on app w/ more than a page of DL symbols to load

[cjt at us dot ibm dot com]

------- Additional Comments From cjt at us dot ibm dot com  2009-04-24 22:50 -------
there was a type above saying to change 5 to 40 in JavaTest.java... That should
have been CounterTest.java, not JavaTest.java.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=10104

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[Bug gdb/10104] gcore fails on app w/ more than a page of DL symbols to load

[tromey at redhat dot com]

------- Additional Comments From tromey at redhat dot com  2010-08-24 21:45 -------
-batch now disables pagination, but cvs head also has a change
to gdb_gcore.sh to disable pagination explicitly.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|6.8                         |7.3


http://sourceware.org/bugzilla/show_bug.cgi?id=10104

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