Minor: Configuring with multiple RTEMS targets

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难度
3/5
预计耗时
1-2 天
新手友好度
42/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
停滞
技术栈
github-actions, python
领域
ci-cd

调研方向

Start by tracing the cue.py prepare handling of CI_CROSS_TARGETS and RTEMS compiler setup; the issue provides no file or test names. Check how multiple targets trigger compiler version commands and where their RTEMS versions are parsed. Done means compiler checks run as intended and mixed RTEMS versions are rejected for a single Base build tree, with coverage for multiple targets.

由索引模型根据 Issue 内容生成。

描述

A GHA build configured with

CI_CROSS_TARGETS="RTEMS-beatnik@5:RTEMS-xilinx_zynq_a9_qemu@5:RTEMS-uC5282@5"

Seems to have built all 3 targets as I hoped it would, but during the cue.py prepare step it output this:

Configuring EPICS build system
  EPICS Base build system set up for optimized build with shared (DLL) linking
  Cross compiler RTEMS5 @ RTEMS-beatnik
  Downloading RTEMS 5 cross compiler: beatnik-rtems5.tar.xz
  /opt/rtems/5/bin/powerpc-rtems5-gcc --version
  powerpc-rtems5-gcc (GCC) 7.5.0 20191114 (RTEMS 5, RSB 5 (3911854[46](https://github.com/anjohnson/pvDataCPP/actions/runs/10337027940/job/28613430850#step:5:49)2e7 modified), Newlib 7947581)
  Copyright (C) 2017 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  
  Cross compiler RTEMS5 @ RTEMS-xilinx_zynq_a9_qemu
  Downloading RTEMS 5 cross compiler: xilinx_zynq_a9_qemu-rtems5.tar.xz
  /opt/rtems/5/bin/arm-rtems5-gcc --version
  arm-rtems5-gcc (GCC) 7.5.0 20191114 (RTEMS 5, RSB 5 (3911854462e7 modified), Newlib 7947581)
  Copyright (C) 2017 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  
  /opt/rtems/5/bin/powerpc-rtems5-gcc --version
  powerpc-rtems5-gcc (GCC) 7.5.0 20191114 (RTEMS 5, RSB 5 (3911854462e7 modified), Newlib 7947581)
  Copyright (C) 2017 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  
  Cross compiler RTEMS5 @ RTEMS-uC[52](https://github.com/anjohnson/pvDataCPP/actions/runs/10337027940/job/28613430850#step:5:55)82
  Downloading RTEMS 5 cross compiler: uC5282-rtems5.tar.xz
  /opt/rtems/5/bin/m68k-rtems5-gcc --version
  m68k-rtems5-gcc (GCC) 7.5.0 20191114 (RTEMS 5, RSB 5 (39118[54](https://github.com/anjohnson/pvDataCPP/actions/runs/10337027940/job/28613430850#step:5:57)462e7 modified), Newlib 7947581)
  Copyright (C) 2017 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  
  /opt/rtems/5/bin/arm-rtems5-gcc --version
  arm-rtems5-gcc (GCC) 7.5.0 20191114 (RTEMS 5, RSB 5 (3911854462e7 modified), Newlib 7947[58](https://github.com/anjohnson/pvDataCPP/actions/runs/10337027940/job/28613430850#step:5:61)1)
  Copyright (C) 2017 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  
  /opt/rtems/5/bin/powerpc-rtems5-gcc --version
  powerpc-rtems5-gcc (GCC) 7.5.0 20191114 (RTEMS 5, RSB 5 (39118544[62](https://github.com/anjohnson/pvDataCPP/actions/runs/10337027940/job/28613430850#step:5:65)e7 modified), Newlib 7947581)
  Copyright (C) 2017 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

So it downloaded each compiler just once, but ran the gcc --version commands for all of the installed cross-compilers in reverse order after installing each one.

It might be worth putting a check in the code when multiple RTEMS targets are built to ensure that they all specify the same RTEMS version. It's not possible to mix RTEMS versions in a single Base build tree.

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Python
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