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[Bug ld/21448] References to constant data in shared libraries bloats 2.
From: |
michael at talosis dot ca |
Subject: |
[Bug ld/21448] References to constant data in shared libraries bloats 2.28 executables compared to 2.27 |
Date: |
Thu, 04 May 2017 06:01:44 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=21448
--- Comment #7 from Michael Deutschmann <michael at talosis dot ca> ---
My example involves an ordinary, absolute executable, not a PIE.
And my point is that all the magic has to be in the linker, not GCC.
If there are no relocations inside the array (there are in the gas/libopcodes
case, but not in the simplest demonstration), the .s file GCC will generate for
an object consisting only of data will be exactly the same with and without
-fPIC.
And it's not even decided until link time whether the external reference is
fulfilled statically or with a reference to a .so file.
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- [Bug ld/21448] References to constant data in shared libraries bloats 2.28 executables compared to 2.27, hjl.tools at gmail dot com, 2017/05/01
- [Bug ld/21448] References to constant data in shared libraries bloats 2.28 executables compared to 2.27, amodra at gmail dot com, 2017/05/02
- [Bug ld/21448] References to constant data in shared libraries bloats 2.28 executables compared to 2.27, michael at talosis dot ca, 2017/05/02
- [Bug ld/21448] References to constant data in shared libraries bloats 2.28 executables compared to 2.27, amodra at gmail dot com, 2017/05/03
- [Bug ld/21448] References to constant data in shared libraries bloats 2.28 executables compared to 2.27, michael at talosis dot ca, 2017/05/03
- [Bug ld/21448] References to constant data in shared libraries bloats 2.28 executables compared to 2.27, amodra at gmail dot com, 2017/05/04
- [Bug ld/21448] References to constant data in shared libraries bloats 2.28 executables compared to 2.27,
michael at talosis dot ca <=
- [Bug ld/21448] References to constant data in shared libraries bloats 2.28 executables compared to 2.27, amodra at gmail dot com, 2017/05/04
- [Bug ld/21448] References to constant data in shared libraries bloats 2.28 executables compared to 2.27, michael at talosis dot ca, 2017/05/04