[PATCH] [GDBserver][AArch64] Enable support for range stepping

[Pierre Langlois <pierre.langlois@arm.com>]

Hi all,

This patch just enables range stepping for AArch64.

Regression tested in remote configuration.  The gdb.base/range-stepping.exp
test is now enabled and gdb.trace/range-stepping.exp passes.

Thanks,
Pierre

gdb/gdbserver/Changelog:

	* linux-aarch64-low.c (aarch64_supports_range_stepping): New
	function, return 1.
	(the_low_target): Install it.
---
 gdb/gdbserver/linux-aarch64-low.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/gdb/gdbserver/linux-aarch64-low.c b/gdb/gdbserver/linux-aarch64-low.c
index b068e55..4534a47 100644
--- a/gdb/gdbserver/linux-aarch64-low.c
+++ b/gdb/gdbserver/linux-aarch64-low.c
@@ -1295,6 +1295,14 @@ aarch64_supports_tracepoints (void)
   return 1;
 }
 
+/* Implementation of linux_target_ops method "supports_range_stepping".  */
+
+static int
+aarch64_supports_range_stepping (void)
+{
+  return 1;
+}
+
 struct linux_target_ops the_low_target =
 {
   aarch64_arch_setup,
@@ -1323,6 +1331,11 @@ struct linux_target_ops the_low_target =
   aarch64_linux_prepare_to_resume,
   NULL, /* process_qsupported */
   aarch64_supports_tracepoints,
+  NULL, /* get_thread_area */
+  NULL, /* install_fast_tracepoint_jump_pad */
+  NULL, /* emit_ops */
+  NULL, /* get_min_fast_tracepoint_insn_len */
+  aarch64_supports_range_stepping,
 };
 
 void
-- 
2.1.0