[6/7] btrace: Add support for further events.

Message ID 20240902114949.918485-7-felix.willgerodt@intel.com
State New
Headers
Series btrace: Intel PT event tracing support |

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Context Check Description
linaro-tcwg-bot/tcwg_gdb_build--master-aarch64 success Build passed
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linaro-tcwg-bot/tcwg_gdb_check--master-aarch64 success Test passed

Commit Message

Felix Willgerodt Sept. 2, 2024, 11:49 a.m. UTC
  This is similar to the previous events that we added, and adds support for
SMI, RSM, SIPI, INIT, VMENTRY, VMEXIT, SHUTDOWN. Though since these are mainly
mechanical and not really possible to test, they are bundled in one commit.
---
 gdb/btrace.c | 126 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 126 insertions(+)
  

Patch

diff --git a/gdb/btrace.c b/gdb/btrace.c
index bcfa11444e7..9d2a9aaa1e9 100644
--- a/gdb/btrace.c
+++ b/gdb/btrace.c
@@ -1426,6 +1426,132 @@  handle_pt_insn_events (struct btrace_thread_info *btinfo,
 	    handle_pt_aux_insn (btinfo, aux_string, pc);
 	    break;
 	  }
+
+	case ptev_smi:
+	  {
+	    std::string aux_string = std::string (_("smi"));
+
+	    if (event.ip_suppressed == 0)
+	      {
+		pc = event.variant.smi.ip;
+		aux_string += std::string (": ip = ") + hex_string (pc);
+	      }
+
+	    handle_pt_aux_insn (btinfo, aux_string, pc);
+	    break;
+	  }
+
+	case ptev_rsm:
+	  {
+	    std::string aux_string = std::string (_("rsm"));
+
+	    if (event.ip_suppressed == 0)
+	      {
+		pc = event.variant.rsm.ip;
+		aux_string += std::string (": ip = ") + hex_string (pc);
+	      }
+
+	    handle_pt_aux_insn (btinfo, aux_string, pc);
+	    break;
+	  }
+
+	case ptev_sipi:
+	  {
+	    std::string aux_string = std::string (_("sipi: vector = "))
+	      + hex_string (event.variant.sipi.vector);
+
+	    handle_pt_aux_insn (btinfo, aux_string, pc);
+	    break;
+	  }
+
+	case ptev_init:
+	  {
+	    std::string aux_string = std::string (_("init"));
+
+	    if (event.ip_suppressed == 0)
+	      {
+		pc = event.variant.init.ip;
+		aux_string += std::string (": ip = ") + hex_string (pc);
+	      }
+
+	    handle_pt_aux_insn (btinfo, aux_string, pc);
+	    break;
+	  }
+
+	case ptev_vmentry:
+	  {
+	    std::string aux_string = std::string (_("vmentry"));
+
+	    if (event.ip_suppressed == 0)
+	      {
+		pc = event.variant.vmentry.ip;
+		aux_string += std::string (": ip = ") + hex_string (pc);
+	      }
+
+	    handle_pt_aux_insn (btinfo, aux_string, pc);
+	    break;
+	  }
+
+	case ptev_vmexit:
+	  {
+	    std::string aux_string = std::string (_("vmexit"));
+
+	    if (event.variant.vmexit.has_vector != 0
+		|| event.variant.vmexit.has_vmxr != 0
+		|| event.variant.vmexit.has_vmxq != 0
+		|| event.ip_suppressed != 0)
+	      aux_string += std::string (":");
+
+	    if (event.variant.vmexit.has_vector != 0)
+	      {
+		aux_string += std::string (_(" vector = "))
+			      + hex_string (event.variant.vmexit.vector);
+
+		const char* decoded = decode_interrupt_vector
+					(event.variant.vmexit.vector);
+		if (decoded != nullptr)
+		  aux_string += std::string (" (") + decoded + ")";
+	      }
+
+	    if (event.variant.vmexit.has_vmxr != 0)
+	      {
+		std::string seperator = aux_string.back () == ':' ? "" : ",";
+		aux_string += seperator + std::string (" vmxr = ")
+			      + hex_string (event.variant.vmexit.vmxr);
+	      }
+
+	    if (event.variant.vmexit.has_vmxq != 0)
+	      {
+		std::string seperator = aux_string.back () == ':' ? "" : ",";
+		aux_string += seperator + std::string (" vmxq = ")
+			      + hex_string (event.variant.vmexit.vmxq);
+	      }
+
+	    if (event.ip_suppressed == 0)
+	      {
+		pc = event.variant.vmexit.ip;
+		std::string seperator = aux_string.back () == ':' ? "" : ",";
+		aux_string += seperator + std::string (" ip = ")
+			      + hex_string (pc);
+	      }
+
+	    handle_pt_aux_insn (btinfo, aux_string, pc);
+	    break;
+	  }
+
+	case ptev_shutdown:
+	  {
+	    std::string aux_string = std::string (_("shutdown"));
+
+	    if (event.ip_suppressed == 0)
+	      {
+		pc = event.variant.shutdown.ip;
+		aux_string += std::string (": ip = ") + hex_string (pc);
+	      }
+
+	    handle_pt_aux_insn (btinfo, aux_string, pc);
+	    break;
+	  }
 #endif /* defined (LIBIPT_VERSION >= 0x201) */
 	}
     }