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ANDROID: Drop left-over out-of-tree difference after 5.10-rc1 merge

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This originally originated from c3826e499c ("FROMLIST:
x86/boot/compressed: Force hidden visibility for all symbol references")
and was mostly (but not completely) reverted during the 5.10-rc1 merge.

Fixes: 43105055d5 ("Merge 34eb62d868 ("Merge tag 'core-build-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip") into android-mainline")
Change-Id: I1147c5bd418fded27a02feed31b748d94cbdb8d5
Signed-off-by: Matthias Maennich <maennich@google.com>
This commit is contained in:
Matthias Maennich
2020-10-30 14:34:07 +00:00
parent 4a5aea3471
commit d06aa5610a
1 changed files with 0 additions and 19 deletions
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19
arch/x86/boot/compressed/hidden.h
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@@ -1,19 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* When building position independent code with GCC using the -fPIC option,
* (or even the -fPIE one on older versions), it will assume that we are
* building a dynamic object (either a shared library or an executable) that
* may have symbol references that can only be resolved at load time. For a
* variety of reasons (ELF symbol preemption, the CoW footprint of the section
* that is modified by the loader), this results in all references to symbols
* with external linkage to go via entries in the Global Offset Table (GOT),
* which carries absolute addresses which need to be fixed up when the
* executable image is loaded at an offset which is different from its link
* time offset.
*
* Fortunately, there is a way to inform the compiler that such symbol
* references will be satisfied at link time rather than at load time, by
* giving them 'hidden' visibility.
*/
#pragma GCC visibility push(hidden)