为 armv5 编译 Valgrind [英] Compile Valgrind for armv5

问题描述

大家.我在为 armv5(arm926ej-s) 交叉编译 valgrind 时遇到了一些问题.我可以找出其中的一些，但有一个我无法解决.我会写这些问题:

1. Valgrind 在 configure 中不支持 armv5，我用 armv7*|arm*) 代替了 armv7*) 并且它效果很好.

2. -mcpu=cortex-a8 不对，因为我有一个 arm926ej-s CPU.所以我用这个命令将它们全部替换到 Makfiles 中:

   <块引用>

   sed -i 's/-mcpu=cortex-a8/-mcpu=arm926ej-s/g' `find .-姓名"Makefile*"`

3. 问题来了.armv5不支持源码中的movw和movt.错误信息是:

<块引用>

m_dispatch/dispatch-arm-linux.S:汇编消息:m_dispatch/dispatch-arm-linux.S:122: 错误:选定的处理器不支持`movw r1,#47'm_dispatch/dispatch-arm-linux.S:123: 错误:选定的处理器不支持`movw r2,#0'm_dispatch/dispatch-arm-linux.S:175: 错误:所选处理器不支持`movw r1,#:lower16:vgPlain_stats__n_xindirs_32'm_dispatch/dispatch-arm-linux.S:176: 错误:选定的处理器不支持`movt r1,#:upper16:vgPlain_stats__n_xindirs_32'm_dispatch/dispatch-arm-linux.S:183: 错误:所选处理器不支持`movw r1,#(((1<<15))-1)'m_dispatch/dispatch-arm-linux.S:184: 错误: 所选处理器不支持`movw r4,#:lower16:vgPlain_tt_fast'm_dispatch/dispatch-arm-linux.S:187: 错误:选定的处理器不支持`movt r4,#:upper16:vgPlain_tt_fast'm_dispatch/dispatch-arm-linux.S:200: 错误: 选定的处理器不支持`movw r1,#:lower16:vgPlain_stats__n_xindir_misses_32'm_dispatch/dispatch-arm-linux.S:201:错误:选定的处理器不支持`movt r1,#:upper16:vgPlain_stats__n_xindir_misses_32'

我正在考虑用 mov 代替 movw 和 movt.但我不熟悉汇编代码.有人可以帮忙吗?谢谢！

解决方案

bug 248998 在 valgrind 错误跟踪器中，它试图添加对 armv5 的支持，但我不知道它们有多完整或它们的工作情况如何.

无论如何，它们可能是您工作的一个很好的起点.

everyone. I got some problems while cross compile valgrind for armv5(arm926ej-s). I can figure out some of them, but there is one I cannot solve. I will write these problems:

1. Valgrind don't support armv5 in configure, I instead armv7*) with armv7*|arm*) and it works well.

2. -mcpu=cortex-a8 is not right since I have a arm926ej-s CPU. So I use this command to replace them all in Makfiles:

   sed -i 's/-mcpu=cortex-a8/-mcpu=arm926ej-s/g' `find . -name "Makefile*"`

3. There comes the problem. movw and movt in the source code is not supported by armv5. The error message is:

m_dispatch/dispatch-arm-linux.S: Assembler messages:
m_dispatch/dispatch-arm-linux.S:122: Error: selected processor does not support `movw r1,#47'
m_dispatch/dispatch-arm-linux.S:123: Error: selected processor does not support `movw r2,#0'
m_dispatch/dispatch-arm-linux.S:175: Error: selected processor does not support `movw   r1,#:lower16:vgPlain_stats__n_xindirs_32'
m_dispatch/dispatch-arm-linux.S:176: Error: selected processor does not support `movt r1,#:upper16:vgPlain_stats__n_xindirs_32'
m_dispatch/dispatch-arm-linux.S:183: Error: selected processor does not support `movw r1,#(((1<<15))-1)'
m_dispatch/dispatch-arm-linux.S:184: Error: selected processor does not support `movw r4,#:lower16:vgPlain_tt_fast'
m_dispatch/dispatch-arm-linux.S:187: Error: selected processor does not support `movt r4,#:upper16:vgPlain_tt_fast'
m_dispatch/dispatch-arm-linux.S:200: Error: selected processor does not support `movw r1,#:lower16:vgPlain_stats__n_xindir_misses_32'
m_dispatch/dispatch-arm-linux.S:201: Error: selected processor does not support `movt r1,#:upper16:vgPlain_stats__n_xindir_misses_32'

I'm thinking of instead of movw and movt with mov. But I'm not familiar with assembly code. Any one could help? Thanks!

解决方案

There are some patches on bug 248998 in the valgrind bug tracker which attempt to add support for armv5 but I have no how complete they are or how well they work.

They would probably make a good starting point for your work anyway.

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