diff mbox

[1/7,v3] powerpc: Support z-point type in gdbserver.

Message ID 1427733032-64989-1-git-send-email-cole945@gmail.com
State New, archived
Headers

Commit Message

Wei-cheng, Wang March 30, 2015, 4:30 p.m. UTC 
  Support z-point, so tracepoints and breakpoints can be inserted at the same
location.

gdb/gdbserver/ChangeLog

2015-03-30  Wei-cheng Wang  <cole945@gmail.com>

	* linux-ppc-low.c (ppc_supports_z_point_type): New function:
	(ppc64_emit_ops_vector): Add target ops - ppc_supports_z_point_type.
---
 gdb/gdbserver/linux-ppc-low.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/gdb/gdbserver/linux-ppc-low.c b/gdb/gdbserver/linux-ppc-low.c
index 188fac0..8a0d5df 100644
--- a/gdb/gdbserver/linux-ppc-low.c
+++ b/gdb/gdbserver/linux-ppc-low.c
@@ -512,6 +512,27 @@  ppc_breakpoint_at (CORE_ADDR where)
   return 0;
 }
 
+/* Implement supports_z_point_type target-ops.
+   Returns true if type Z_TYPE breakpoint is supported.
+
+   Handling software breakpoint at server side, so tracepoints
+   and breakpoints can be inserted at the same location.  */
+
+static int
+ppc_supports_z_point_type (char z_type)
+{
+  switch (z_type)
+    {
+    case Z_PACKET_SW_BP:
+      return 1;
+    case Z_PACKET_HW_BP:
+    case Z_PACKET_WRITE_WP:
+    case Z_PACKET_ACCESS_WP:
+    default:
+      return 0;
+    }
+}
+
 /* Provide only a fill function for the general register set.  ps_lgetregs
    will use this for NPTL support.  */
 
@@ -690,7 +711,7 @@  struct linux_target_ops the_low_target = {
   NULL,
   0,
   ppc_breakpoint_at,
-  NULL, /* supports_z_point_type */
+  ppc_supports_z_point_type, /* supports_z_point_type */
   NULL,
   NULL,
   NULL,