diff options
| -rw-r--r-- | gdb-xml/power-core.xml | 9 | ||||
| -rw-r--r-- | gdb-xml/power64-core.xml | 9 |
2 files changed, 18 insertions, 0 deletions
diff --git a/gdb-xml/power-core.xml b/gdb-xml/power-core.xml index 0c69e8c8a7..dae13a67ef 100644 --- a/gdb-xml/power-core.xml +++ b/gdb-xml/power-core.xml @@ -46,4 +46,13 @@ <reg name="lr" bitsize="32" type="code_ptr"/> <reg name="ctr" bitsize="32" type="uint32"/> <reg name="xer" bitsize="32" type="uint32"/> + <!-- HACK: The way the QEMU GDB stub code is currently written requires + the "integer" registers from the XML file to span the entirety of + NUM_CORE_REGS that non-XML-aware GDB requires. Otherwise, XML-aware + GDB thinks that "coprocessor" registers from XML, such as the + floating-point registers, have register numbers less than + NUM_CORE_REGS. This can lead to problems. Work around it by using + an unnamed register as padding; NUM_CORE_REGS on Power is 71 and + this register is 70. It would be fpscr for non-XML-aware GDB. --> + <reg name="" bitsize="32" type="uint32"/> </feature> diff --git a/gdb-xml/power64-core.xml b/gdb-xml/power64-core.xml index 6cc1531201..fef42e4166 100644 --- a/gdb-xml/power64-core.xml +++ b/gdb-xml/power64-core.xml @@ -46,4 +46,13 @@ <reg name="lr" bitsize="64" type="code_ptr"/> <reg name="ctr" bitsize="64" type="uint64"/> <reg name="xer" bitsize="32" type="uint32"/> + <!-- HACK: The way the QEMU GDB stub code is currently written requires + the "integer" registers from the XML file to span the entirety of + NUM_CORE_REGS that non-XML-aware GDB requires. Otherwise, XML-aware + GDB thinks that "coprocessor" registers from XML, such as the + floating-point registers, have register numbers less than + NUM_CORE_REGS. This can lead to problems. Work around it by using + an unnamed register as padding; NUM_CORE_REGS on Power is 71 and + this register is 70. It would be fpscr for non-XML-aware GDB. --> + <reg name="" bitsize="32" type="uint32"/> </feature> |