[PATCH 02/10] btrace: Enable auxiliary instructions in record instruction-history.

[felix.willgerodt@intel.com]

From: Felix Willgerodt <felix.willgerodt@intel.com>

Print the auxiliary data when a btrace_insn of type BTRACE_INSN_AUX
is encountered in the instruction-history.

This patch is in preparation for the ptwrite feature, which is based on
auxiliary instructions.

2019-05-29  Felix Willgerodt  <felix.willgerodt@intel.com>

gdb/ChangeLog:
	* record-btrace.c (btrace_insn_history): Handle BTRACE_INSN_AUX.

---
 gdb/record-btrace.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/gdb/record-btrace.c b/gdb/record-btrace.c
index 21085d5c62c..5fb967c40f0 100644
--- a/gdb/record-btrace.c
+++ b/gdb/record-btrace.c
@@ -811,6 +811,16 @@ btrace_insn_history (struct ui_out *uiout,
 	  btrace_ui_out_decode_error (uiout, btrace_insn_get_error (&it),
 				      conf->format);
 	}
+      else if (insn->iclass == BTRACE_INSN_AUX)
+	{
+	  uiout->field_fmt ("insn-number", "%u", btrace_insn_number (&it));
+	  uiout->text ("\t");
+	  uiout->spaces (3);
+	  uiout->text ("[");
+	  uiout->field_fmt ("aux-insn", "%s",
+			    it.btinfo->aux_data[insn->aux_data_index].c_str ());
+	  uiout->text ("]\n");
+	}
       else
 	{
 	  struct disasm_insn dinsn;
-- 
2.20.1