src/llvm-project/lldb/test/API/commands/trace/TestTraceDumpInfo.py

import lldb
from intelpt_testcase import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
from lldbsuite.test.decorators import *


class TestTraceDumpInfo(TraceIntelPTTestCaseBase):
    def testErrorMessages(self):
        # We first check the output when there are no targets
        self.expect(
            "thread trace dump info",
            substrs=[
                "error: invalid target, create a target using the 'target create' command"
            ],
            error=True,
        )

        # We now check the output when there's a non-running target
        self.expect(
            "target create "
            + os.path.join(self.getSourceDir(), "intelpt-trace", "a.out")
        )

        self.expect(
            "thread trace dump info",
            substrs=["error: Command requires a current process."],
            error=True,
        )

        # Now we check the output when there's a running target without a trace
        self.expect("b main")
        self.expect("run")

        self.expect(
            "thread trace dump info",
            substrs=["error: Process is not being traced"],
            error=True,
        )

    def testDumpRawTraceSize(self):
        self.expect(
            "trace load -v "
            + os.path.join(self.getSourceDir(), "intelpt-trace", "trace.json"),
            substrs=["intel-pt"],
        )

        self.expect(
            "thread trace dump info",
            substrs=[
                """thread #1: tid = 3842849

  Trace technology: intel-pt

  Total number of trace items: 28

  Memory usage:
    Raw trace size: 4 KiB
    Total approximate memory usage (excluding raw trace): 0.25 KiB
    Average memory usage per item (excluding raw trace): 9.00 bytes

  Timing for this thread:
    Decoding instructions: """,
                """

  Events:
    Number of individual events: 7
      software disabled tracing: 2
      hardware disabled tracing: 4
      trace synchronization point: 1""",
            ],
            patterns=["Decoding instructions: \d.\d\ds"],
        )

    def testDumpRawTraceSizeJSON(self):
        self.expect(
            "trace load -v "
            + os.path.join(self.getSourceDir(), "intelpt-trace", "trace.json"),
            substrs=["intel-pt"],
        )

        self.expect(
            "thread trace dump info --json ",
            substrs=[
                """{
  "traceTechnology": "intel-pt",
  "threadStats": {
    "tid": 3842849,
    "traceItemsCount": 28,
    "memoryUsage": {
      "totalInBytes": "252",
      "avgPerItemInBytes": 9
    },
    "timingInSeconds": {
      "Decoding instructions": 0""",
                """
    },
    "events": {
      "totalCount": 7,
      "individualCounts": {
        "software disabled tracing": 2,
        "hardware disabled tracing": 4,
        "trace synchronization point": 1
      }
    },
    "errors": {
      "totalCount": 0,
      "libiptErrors": {},
      "fatalErrors": 0,
      "otherErrors": 0
    }
  },
  "globalStats": {
    "timingInSeconds": {}
  }
}""",
            ],
        )