tree 3716ff0bf9f78c6b199fc74790ed4b1fb51d56c4
parent 8a97ee95f2203295e34b7f8ade1092080809fddb
author Jian Cai <caij2003@gmail.com> 1568670467 +0000
committer Jian Cai <caij2003@gmail.com> 1568670467 +0000

[compiler-rt][crt]  make test case nontrivial in check_cxx_section_exists

Summary:
.init_array gets optimized away when building with -O2 and as a result,
check_cxx_section_exists failed to pass -DCOMPILER_RT_HAS_INITFINI_ARRAY
when building crtbegin.o and crtend.o, which causes binaries linked with
them encounter segmentation fault. See https://crbug.com/855759 for
details. This change prevents .init_array section to be optimized away
even with -O2 or higher optimization level.

Subscribers: dberris, mgorny, #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D67628

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@372038 91177308-0d34-0410-b5e6-96231b3b80d8