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[Bug binutils/25355] nm reports data variable as "T" with -flto


From: hjl.tools at gmail dot com
Subject: [Bug binutils/25355] nm reports data variable as "T" with -flto
Date: Wed, 12 Feb 2020 10:50:11 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=25355

--- Comment #38 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Martin Liška from comment #37)
> > 
> > Which liblto_plugin.so did nm load? Which liblto_plugin.so should nm load?
> 
> It loads the following plugin:
> 
> stat("/usr/bin/../lib64/bfd-plugins", 0x7fffffffd980) = -1 ENOENT (No such
> file or directory)
> stat("/usr/bin/../bin/../lib/bfd-plugins", {st_mode=S_IFDIR|0755,
> st_size=4096, ...}) = 0
> openat(AT_FDCWD, "/usr/bin/../bin/../lib/bfd-plugins",
> O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
> stat("/usr/bin/../bin/../lib/bfd-plugins/liblto_plugin.so.0.0.0",
> {st_mode=S_IFREG|0755, st_size=84904, ...}) = 0
> 
> The plugins are very stable and the plugin works fine with current GCC
> master. Problem is that we need to find a corresponding lto-wrapper. It's
> more challenging..

What is wrong to use the matching lto-wrapper for the plugin being used?

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