From feb641cdaad7227738bc9321954ec58677f1d234 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Hr=C3=A1zk=C3=BD?= <lukkash@email.cz>
Date: Tue, 16 Jan 2024 23:41:24 +0100
Subject: [PATCH] Add "used" attribute to XML data symbol when creating
 compressed config (#346)

The __attribute__((used)) tells the compiler not to make the symbol
local when optimizing. This happens when LTO is used when building a
VESC package.
---
 utility.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utility.cpp b/utility.cpp
index 7999e46a9..ca7e45feb 100755
--- a/utility.cpp
+++ b/utility.cpp
@@ -1427,7 +1427,7 @@ bool Utility::createCompressedConfigC(ConfigParams *params, QString configName,
 
     outSource << "// This file is autogenerated by VESC Tool\n\n";
     outSource << "#include \"" << headerInfo.fileName() << "\"\n\n";
-    outSource << "uint8_t data_" << configNameStr << "[" << compressed.size() << "] = {\n\t";
+    outSource << "__attribute__((used)) uint8_t data_" << configNameStr << "[" << compressed.size() << "] = {\n\t";
 
     int posCnt = 0;
     for (auto b: compressed) {