| commit | 214690373c05e7196f5df54c9dacefe9ec185fc1 | [log] [tgz] |
|---|---|---|
| author | Fangrui Song <maskray@google.com> | Mon Aug 19 14:30:12 2019 +0000 |
| committer | Fangrui Song <maskray@google.com> | Mon Aug 19 14:30:12 2019 +0000 |
| tree | fae989939cdf31575192d522ca49cf10e4d31247 | |
| parent | 60eccd7d3e75bda03b64ba3f7100bacb19000daa [diff] |
[ELF] Move (copy relocation/canonical PLT) before error checking
In processRelocAux(), we handle errors before copy relocation/canonical PLT.
This makes error checking a bit complex because we have to check for
conditions that will be allowed by copy relocation/canonical PLT.
Instead, move copy relocation/canonical PLT before error checking. This
simplifies the previous clumsy error checking code
`config->shared || (config->pie && expr == R_ABS && type != target->symbolicRel)`
to the simple `config->isPic`. Some diagnostics can be reported in
different ways. The code motion changes diagnostics for some contrived
test cases:
* copy-rel-pie-error.s -> copy-rel-pie2.s:
It was rejected before but accepted now. ld.bfd also accepts the case.
* copy-errors.s: "cannot preempt symbol" changes to "symbol 'bar' has no type"
* got32{,x}-i386.s: the suggestion changes from "-fPIC or -Wl,-z,notext" to "-fPIE"
* x86-64-dyn-rel-error5.s: one diagnostic changes for -pie case
Reviewed By: peter.smith
Differential Revision: https://reviews.llvm.org/D66007
git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@369262 91177308-0d34-0410-b5e6-96231b3b80d8
This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.
lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.
In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.
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