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[MI] Fix segfault for -remove-inferior


Hi,

I started to play around with MI multi-exec and got a segfault.
Below is the session showing the problem and the patch to fix it.
I think this should go into the 7.2 branch.

(I did not have time to run the test suite)

OK?

Marc


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(gdb) interpreter-exec mi "-remove-inferior i1"
Segmentation fault


2010-08-04  Marc Khouzam  <marc.khouzam@ericsson.com>

	* mi/mi-main.c (mi_cmd_remove_inferior): Properly access first argument.


### Eclipse Workspace Patch 1.0
#P src
Index: gdb/mi/mi-main.c
===================================================================
RCS file: /cvs/src/src/gdb/mi/mi-main.c,v
retrieving revision 1.178
diff -u -r1.178 mi-main.c
--- gdb/mi/mi-main.c    11 Jun 2010 15:36:07 -0000      1.178
+++ gdb/mi/mi-main.c    4 Aug 2010 19:40:19 -0000
@@ -1609,7 +1609,7 @@
   if (argc != 1)
     error ("-remove-inferior should be passed a single argument");
 
-  if (sscanf (argv[1], "i%d", &id) != 1)
+  if (sscanf (argv[0], "i%d", &id) != 1)
     error ("the thread group id is syntactically invalid");
 
   inf = find_inferior_id (id);
 


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