Lancelot SIX
f74a5e6f2e
Commitbc20e562ec"Fix use after free in varobj" introduced a regression. This commit makes sure that the varobj object does not keeps stale references to object being freed when we unload an objfile. This includes the "valid_block" field which is reset to nullptr if the pointed to block is tied to an objfile being freed. However, at some point varobj_invalidate_iter might try to recreate varobjs tracking either floating or globals. Varobj tracking globals are identified as having the "valid_block" field set nullptr, but asbc20e562ecmight clear this field, we have lost the ability to distinguish between varobj referring to globals and non globals. Fix this by introducing a "global" flag which tracks if a given varobj was initially created as tracking a global. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29426
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