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[Bug ld/26164] powerpc64le: ld requires a nop after a branch to another
From: |
amodra at gmail dot com |
Subject: |
[Bug ld/26164] powerpc64le: ld requires a nop after a branch to another compilation unit |
Date: |
Thu, 25 Jun 2020 01:24:14 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=26164
--- Comment #2 from Alan Modra <amodra at gmail dot com> ---
Another thing to consider with regards to glibc assembly is that functions
using plain ENTRY as opposed to ENTRY_TOCLESS may incur extra overhead when
being called. For example when linking staticly, a call from pcrel code to a
function that uses r2 will never be direct to the local entry point. Instead
the call will go via a stub to the global entry point.
BTW, -Wl,-stats might be useful in tracking down these cases.
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