From 95f523ba4dbdb31e49a42b4b89db10654d1fe7b7 Mon Sep 17 00:00:00 2001
From: alesapin <alesapin@gmail.com>
Date: Tue, 17 Sep 2019 12:53:12 +0300
Subject: [PATCH] Add comment

---
 CMakeLists.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e7c8baac1a9..53635ed3a05 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -162,6 +162,8 @@ if (NOT CMAKE_BUILD_TYPE_UC STREQUAL "RELEASE")
         set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gdb-index")
         set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--gdb-index")
         message (STATUS "Adding .gdb-index via --gdb-index linker option.")
+    # we use another tool for gdb-index, because gold linker removes section .debug_aranges, which used inside clickhouse stacktraces
+    # http://sourceware-org.1504.n7.nabble.com/gold-No-debug-aranges-section-when-linking-with-gdb-index-td540965.html#a556932
     elseif (LINKER_NAME STREQUAL "gold" AND ADD_GDB_INDEX_FOR_GOLD)
         find_program (GDB_ADD_INDEX_EXE NAMES "gdb-add-index" DOC "Path to gdb-add-index executable")
         if (NOT GDB_ADD_INDEX_EXE)