cpu: Introduce CPUState::gdb_num_regs and CPUClass::gdb_num_core_regs
CPUState::gdb_num_regs replaces num_g_regs.
CPUClass::gdb_num_core_regs replaces NUM_CORE_REGS.
Allows building gdb_register_coprocessor() for xtensa, too.
As a side effect this should fix coprocessor register numbering for SMP.
Acked-by: Michael Walle <michael@walle.cc> (for lm32)
Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa)
Signed-off-by: Andreas Färber <afaerber@suse.de>
diff --git a/target-xtensa/helper.c b/target-xtensa/helper.c
index e309879..a0f9993 100644
--- a/target-xtensa/helper.c
+++ b/target-xtensa/helper.c
@@ -37,10 +37,18 @@
static void xtensa_core_class_init(ObjectClass *oc, void *data)
{
+ CPUClass *cc = CPU_CLASS(oc);
XtensaCPUClass *xcc = XTENSA_CPU_CLASS(oc);
const XtensaConfig *config = data;
xcc->config = config;
+
+ /* Use num_core_regs to see only non-privileged registers in an unmodified
+ * gdb. Use num_regs to see all registers. gdb modification is required
+ * for that: reset bit 0 in the 'flags' field of the registers definitions
+ * in the gdb/xtensa-config.c inside gdb source tree or inside gdb overlay.
+ */
+ cc->gdb_num_core_regs = config->gdb_regmap.num_regs;
}
void xtensa_register_core(XtensaConfigList *node)
