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Upstream async-profiler changes detected (2026-07-14)

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Issue 类型
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技术栈
cpp

调研方向

从上游比较范围 f9e3b91...11aaea3 开始,检查 ddprof-lib/src/main/cpp 下列出的文件,尤其是与 JDK 27、TSC 检测、符号加载和 protobuf 类相关的更改。在 Datadog profiler 上下文中测试相关更改,并检查与本地修改的兼容性。当兼容的上游更改已在需要的位置完成集成,并且 profiler 构建成功且通过适用的集成检查时,即视为完成。

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描述

needs-review upstream-tracking

Upstream async-profiler Changes Detected

Date: 2026-07-14
Commit Range: f9e3b91...11aaea3
Files Changed: 10
Total Commits: 7

Summary

10 files in ddprof-lib/src/main/cpp have corresponding changes in upstream async-profiler.

Changed Files

wallClock.h

Commits: 1

  • a325d1e Upgrade to opentelemetry-proto v1.10.0 (#1768)

View diff: wallClock.h

vmStructs.h

Commits: 1

  • 5026f38 Fix vtable test failures on JDK 27 (#1765)

View diff: vmStructs.h

vmStructs.cpp

Commits: 1

  • 5026f38 Fix vtable test failures on JDK 27 (#1765)

View diff: vmStructs.cpp

tsc.h

Commits: 1

  • 7a321b7 Do not use TSC on x86 if JFR fails to detect TSC frequency (#1767)

View diff: tsc.h

tsc.cpp

Commits: 1

  • 7a321b7 Do not use TSC on x86 if JFR fails to detect TSC frequency (#1767)

View diff: tsc.cpp

symbols_macos.cpp

Commits: 1

  • 589e9c8 Parse only essential libraries at load time (#1769)

View diff: symbols_macos.cpp

symbols_linux.cpp

Commits: 1

  • 589e9c8 Parse only essential libraries at load time (#1769)

View diff: symbols_linux.cpp

symbols.h

Commits: 1

  • 589e9c8 Parse only essential libraries at load time (#1769)

View diff: symbols.h

mallocTracer.h

Commits: 1

  • a325d1e Upgrade to opentelemetry-proto v1.10.0 (#1768)

View diff: mallocTracer.h

cpuEngine.h

Commits: 1

  • a325d1e Upgrade to opentelemetry-proto v1.10.0 (#1768)

View diff: cpuEngine.h

Recent Commits

  • 11aaea3 Fixed build failure when protobuf classes are missing
  • 35171b8 Release 4.5
  • 589e9c8 Parse only essential libraries at load time (#1769)
  • a325d1e Upgrade to opentelemetry-proto v1.10.0 (#1768)
  • 7a321b7 Do not use TSC on x86 if JFR fails to detect TSC frequency (#1767)
  • 9cb358e Fix full-match branch in instrument.cpp (#1766)
  • 5026f38 Fix vtable test failures on JDK 27 (#1765)

Referenced Pull Requests

Action Items

  1. Review changed files for compatibility with Datadog modifications
  2. Test changes in Datadog profiler context
  3. Update integration if necessary
  4. Consider upstreaming any Datadog-specific fixes if applicable

Resources

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