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List:       oprofile-commits
Subject:    [oprof-cvs] CVS: oprofile TODO.jit,1.1.2.16,1.1.2.17
From:       Maynard Johnson <maynardj () users ! sourceforge ! net>
Date:       2007-12-20 19:58:10
Message-ID: E1J5RX0-0007RK-Ci () sc8-pr-cvs3 ! sourceforge ! net
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Update of /cvsroot/oprofile/oprofile
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv28542

Modified Files:
      Tag: JIT_SUPPORT
	TODO.jit 
Log Message:
Update TODO.jit; no ChangeLog

Index: TODO.jit
===================================================================
RCS file: /cvsroot/oprofile/oprofile/Attic/TODO.jit,v
retrieving revision 1.1.2.16
retrieving revision 1.1.2.17
diff -u -p -d -r1.1.2.16 -r1.1.2.17
--- TODO.jit	19 Dec 2007 20:12:47 -0000	1.1.2.16
+++ TODO.jit	20 Dec 2007 19:58:07 -0000	1.1.2.17
@@ -59,11 +59,18 @@ o op_write_native_code() must accept one
   Perhaps we can use it too for java, filtering native method etc. Actually
   we allow a simplified form of this feature by allowing to disable/enable
   code dumping but at the whole dump level not on a symbol basis, quite
-  possible sufficient.
+  possible sufficient. [mpj: We're backing away from the idea of dumping
+  JIT records without code.  Since BFD asymbol type does not include symbol size,
+  the op_bfd technique for determining symbol size relies on knowing the true
+  file size; and if code is not included in the .jo file, we don't have true size.]
 o The pipe used for triggering JIT dump conversion should be used for normal
   dumping too.
 o The way to use the pipe should be made more secure to avoid denial of service
   attacks. We have to think about it.
+o Callgraph does not work properly for the .jo files the JIT support creates.
+  See section Chapter 4, sect 2.3.2 "Callgraph and JIT support". Try to figure
+  out a way to correlate an anonymous sample callgraph entry with
+  the .jo file that may exist for the anonymous code.  
 
 ------
 


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