diff options
Diffstat (limited to 'gdb/testsuite/gdb.cp/virtbase.exp')
| -rw-r--r-- | gdb/testsuite/gdb.cp/virtbase.exp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.cp/virtbase.exp b/gdb/testsuite/gdb.cp/virtbase.exp index 460c968..4bfec44 100644 --- a/gdb/testsuite/gdb.cp/virtbase.exp +++ b/gdb/testsuite/gdb.cp/virtbase.exp @@ -65,3 +65,18 @@ gdb_test "print/x b->mA" " = 0xaaaaaaaa" # https://bugzilla.redhat.com/show_bug.cgi?id=606660 # `set print object on' is expected. gdb_test "print rtti_data" " = .*, data = 1\}" + +# Printing a pointer into a virtual base of a larger object used to do +# pointer adjusment directly into the value being printed, in-place +# (and did it wrong, too). Print the pointer, and then access the +# value history to check the pointer value is not changed. If it had +# been changed, then we'd not be able to find the real type anymore. +gdb_test "print virtual_middle_b" \ + " = \\(Virtual \\*\\) $hex" \ + "print pointer to virtual base at non-zero offset of larger object" +gdb_test "print $" \ + " = \\(Virtual \\*\\) $hex" \ + "print same pointer from history value" +gdb_test "print *$$" \ + " = \\(Virtual\\) {<VirtualMiddleA> = {<VirtualBase> = {_vptr.VirtualBase = $hex, x = 0}, _vptr.VirtualMiddleA = $hex, y = \\{0 <repeats 300 times>\\}}, <VirtualMiddleB> = {_vptr.VirtualMiddleB = $hex, y = 0}, _vptr.Virtual = $hex, z = 0}" \ + "print whole pointed-to object, starting from the virtual base pointer" |