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[Bug ld/25416] TLSDESC relaxation doesn't work for x32
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From: |
hjl.tools at gmail dot com |
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Subject: |
[Bug ld/25416] TLSDESC relaxation doesn't work for x32 |
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Date: |
Sun, 19 Jan 2020 01:46:25 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=25416
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
For x32, we must encode "lea x@TLSDESC(%rip), %eax" with a REX prefix
even if it isn't required. Otherwise linker can’t safely perform
GDesc -> LE optimization.
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