Re: FW: Segfault in varobj.c

[Nick Roberts <nickrob@snap.net.nz>]

 > > No, that won't happen any more.  See get_value_type.
 > 
 > Ah. Thanks. There doesn't seem to be any equivalent function in the 6.6
 > version. Can you remember how this would have been handled then?
 > Appreciate that you're probably not interested in dredging up the past.
 > I tried variations on the following code but still wasn't able to
 > reproduce in 6.6 so there must be something more to my test binary:

Your example crashes with GDB 6.6 for me in the way you first reported.

 > typedef int * INT_PTR;
 > 
 > struct test_struct {
 >   INT_PTR x;
 > };
 > 
 > struct test_struct test;
 > 
 > int main(void) {
 >   int x = 1;
 >   test.x = &x;
 >   return *test.x;
 > }
 > 
 > rnorton@x-cbga-09:rnorton> gdb --interpreter=mi gdbtestfp
 > ...
 > ^done,reason="breakpoint-hit",bkptno="1",thread-id="0",frame={addr="0x00
 > 000140",func="main",args=[],file="gdbtest.c",line="10"}
 > (gdb)
 > -var-create - * test
 > ^done,name="var1",numchild="1",type="struct test_struct"
 > (gdb)
 > -var-list-children test
 > &"Variable object not found\n"
 > ^error,msg="Variable object not found"
 > (gdb)
 > -var-list-children var1
 > ^done,numchild="1",children={child={name="var1.x",exp="x",numchild="1",t
 > ype="INT_PTR"}}
 > (gdb)
 > -var-list-children var1.x
 > ^done,numchild="1",children={child={name="var1.x.*x",exp="*x",numchild="
 > 0",type="int"}}
 > (gdb)
 > -var-list-children var1.x.*x
 > ^done,numchild="0"
 > (gdb)
 > 
 > Suppose I'll just have to go with a workaround until such time as we can
 > upgrade. 

Yes.  It appears to be fixed in current CVS but isn't handled by GDB 6.6.

-- 
Nick                                           http://www.inet.net.nz/~nickrob