Re: gdb crash with -i=mi2

[Elena Zannoni <ezannoni@redhat.com>]

Try this as a workaround, seems to work for me:

Index: mi-interp.c
===================================================================
RCS file: /cvs/uberbaum/gdb/mi/mi-interp.c,v
retrieving revision 1.5
diff -u -p -r1.5 mi-interp.c
--- mi-interp.c	7 Aug 2003 17:47:42 -0000	1.5
+++ mi-interp.c	8 Aug 2003 18:12:49 -0000
@@ -409,7 +409,7 @@ _initialize_mi_interp (void)
 
   /* The various interpreter levels.  */
   interp_add (interp_new (INTERP_MI1, NULL, mi_out_new (1), &procs));
-  interp_add (interp_new (INTERP_MI2, NULL, mi_out_new (2), &procs));
+  /*interp_add (interp_new (INTERP_MI2, NULL, mi_out_new (2), &procs));*/
   interp_add (interp_new (INTERP_MI3, NULL, mi_out_new (3), &procs));
 
   /* "mi" selects the most recent released version.  "mi2" was


Michael Elizabeth Chastain writes:
 > The new mi2 tests are bombing out big time for me!
 > 
 >   % gdb -i=mi2
 >   Segmentation fault (core dumped)
 > 
 > Here is a backtrace.
 > 
 >   #0  0x080c6e2a in interp_set (interp=0x0)
 >       at /berman/fsf/_today_/source/gdb/HEAD/src/gdb/interps.c:160
 >   #1  0x080c6ee5 in interp_set (interp=0x82a1bc8)
 >       at /berman/fsf/_today_/source/gdb/HEAD/src/gdb/interps.c:186
 >   #2  0x08077d69 in captured_main (data=0x0)
 >       at /berman/fsf/_today_/source/gdb/HEAD/src/gdb/main.c:582
 >   #3  0x0810cd91 in do_catch_errors (uiout=0x8261fa0, data=0x1)
 >       at /berman/fsf/_today_/source/gdb/HEAD/src/gdb/top.c:497
 >   #4  0x0810ccc0 in catcher (func=0x810cd80 <do_catch_errors>,
 >       func_uiout=0x8261fa0, func_args=0xbffff7d0, func_val=0xbffff7c8,
 >       func_caught=0xbffff7cc, errstring=0x1 <Address 0x1 out of bounds>, mask=6)
 >       at /berman/fsf/_today_/source/gdb/HEAD/src/gdb/top.c:429
 >   #5  0x0810cdea in catch_errors (func=0x1, func_args=0x1,
 >       errstring=0x1 <Address 0x1 out of bounds>, mask=1)
 >       at /berman/fsf/_today_/source/gdb/HEAD/src/gdb/top.c:509
 >   #6  0x08078591 in gdb_main (args=0x829b5c0)
 >       at /berman/fsf/_today_/source/gdb/HEAD/src/gdb/main.c:820
 >   #7  0x0807772e in main (argc=1, argv=0x1)
 >       at /berman/fsf/_today_/source/gdb/HEAD/src/gdb/gdb.c:35
 >   #8  0x420158d4 in __libc_start_main () from /lib/i686/libc.so.6
 > 
 > This happens with:
 > 
 >   gdb HEAD 2003-08-07 20:28:13 UTC
 > 
 > It also happens with:
 > 
 >   gdb HEAD 2003-08-07 20:31:55 UTC
 > 
 > native i686-pc-linux-gnu, red hat linux 8.
 > gdb built with gcc 3.3, binutils 2.14.
 > 
 > It's happening in this code:
 > 
 >     180   /* Clear out any installed interpreter hooks/event handlers. */
 >     181   clear_interpreter_hooks ();
 >     182
 >     183   if (interp->procs->resume_proc != NULL
 >     184       && (!interp->procs->resume_proc (interp->data)))
 >     185     {
 >     186       if (!interp_set (old_interp))
 >     187         internal_error (__FILE__, __LINE__,
 >     188                         "Failed to initialize new interp \"%s\" %s",
 >     189                         interp->name, "and could not restore old interp!
 >         \n");
 > 
 > This is calling interp_set recursively with old_interp=0x0
 > (as shown in the stack trace).
 > 
 > Michael C