From a9a9a1243734feeced8c7e9a944f1e7ccc843f44 Mon Sep 17 00:00:00 2001
From: Takeshi Nakatani <ggtakec@gmail.com>
Date: Sun, 17 Mar 2024 13:56:25 +0000
Subject: [PATCH] Fixed configure error for GHA:sanitize_thread

---
 .github/workflows/ci.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8e6feb82fc..463d0db721 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -263,6 +263,10 @@ jobs:
               echo 'CXX=clang++'                                       >> $GITHUB_ENV
               echo "CXXFLAGS=${COMMON_CXXFLAGS} -O0 -fsanitize=thread" >> $GITHUB_ENV
               echo 'TSAN_OPTIONS=halt_on_error=1'                      >> $GITHUB_ENV
+              # [NOTE]
+              # Set this to avoid following error when running configure.
+              # "FATAL: ThreadSanitizer: unexpected memory mapping"
+              sysctl vm.mmap_rnd_bits=28
           elif [ "${{ matrix.checktype }}" = "sanitize_others" ]; then
               echo 'CXX=clang++'                                       >> $GITHUB_ENV
               echo "CXXFLAGS=${COMMON_CXXFLAGS} -O1 -fsanitize=undefined,implicit-conversion,local-bounds,unsigned-integer-overflow" >> $GITHUB_ENV