[Mono-bugs] [Bug 75725][Blo] New - bug in mono_debug_add_type

[bugzilla-daemon at bugzilla.ximian.com]

Please do not reply to this email- if you want to comment on the bug, go to the
URL shown below and enter your comments there.

Changed by smithrud at hotmail.com.

http://bugzilla.ximian.com/show_bug.cgi?id=75725

--- shadow/75725	2005-08-05 14:33:57.000000000 -0400
+++ shadow/75725.tmp.25353	2005-08-05 14:33:57.000000000 -0400
@@ -0,0 +1,55 @@
+Bug#: 75725
+Product: Mono: Runtime
+Version: 1.1
+OS: Solaris 8
+OS Details: SPARC
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Blocker
+Component: debug
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: smithrud at hotmail.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: bug in mono_debug_add_type
+
+Please fill in this template when reporting a bug, unless you know what you 
+are doing.
+Description of Problem:
+mono_debug_add_type with 1.1.8.2 core dumps because it attempts to assign a 
+pointer to a non-long word boundary.
+
+Steps to reproduce the problem:
+1. make check
+2. 
+3. 
+
+Actual Results:
+Core dumps after several tests
+
+Expected Results:
+Not to core dump.
+
+How often does this happen? 
+Always
+
+Additional Information:
+The issue with mono_debugger_add_type is with the following lines (from 
+memory, since I am on a different machine):
+
+write_leb(...);
+write_leb(...);
+write_leb(...);
+* ((gpointer*) ptr) = klass;
+
+Write_leb can move the pointer to an offset that is not on a pointer 
+boundary and the SPARC architecture does not allow a pointer to be written 
+on an odd boundary (or word boundaries that are not also long boundaries, 
+ie pointer % 4 != 0...actually, it probably even pointer % 8 != 0 for 64-
+bit).  I've change the code to behave as though they were two guint8* 
+(which is convenient, since one is defined that way) and loop through the 
+data.  I do not know what the data is used for, I am unsure that that is 
+appropriate.