iovisor/bcc

bcc fail to run on armhf

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#4,487 建立於 2023年2月17日

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help wanted

描述

My configuration

  • Linux kernel version: 5.10
  • Compilied bcc version: 0.25.0
  • LLVM version: 11.0-51+nmu5

Problem

I tried to execute my bpf program with bcc on armhf, and I had getting many errors about SMP and registers. Like in #1202 issue, first error was "error: register 'sp' unsuitable for global register variables on this target". Full log in attached file.

log.txt

Inspection in bcc

Looks like that the following files doesn't contain information about working with the armhf architecture:

貢獻者指南

技術棧
c
領域
performancetoolingobservability
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
4
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
3-5 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
active
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
C programmingBPF conceptsARM architecture
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
25
研究方向
The issue requires adding armhf support to the BCC frontend. The files to modify are arch helper.h, b frontend action.cc, and bcc proc.c. Investigate the existing architecture specific code in those files (e.g., for x86 64 or aarch64) and add equivalent handling for armhf. Check the comments in the issue and linked issue #1202 for similar register problems. Ensure the BPF program can compile with the correct register constraints for ARM. Test on an armhf machine or emulator.
bcc fail to run on armhf · iovisor/bcc#4487 | Good First Issue