# --- T2-COPYRIGHT-BEGIN ---
# t2/package/*/qt6webengine/hotfix-lto.patch
# Copyright (C) 2026 The T2 SDE Project
# SPDX-License-Identifier: GPL-2.0 or patched project license
# --- T2-COPYRIGHT-END ---

--- qtwebengine-opensource-src-5.9.4/src/3rdparty/chromium/sandbox/linux/BUILD.gn
+++ qtwebengine-opensource-src-5.9.4/src/3rdparty/chromium/sandbox/linux/BUILD.gn
@@ -199,6 +199,25 @@ test("sandbox_linux_unittests") {
   }
 }
 
+config("no_lto") {
+  # Disable LTO. Use a config and the C++ specific flags variable to move
+  # the flag to the latest possible position to override earlier flags.
+  cflags_cc = [ "-fno-lto" ]
+}
+
+source_set("seccomp_bpf_syscall") {
+  sources = [ "seccomp-bpf/syscall.cc" ]
+  defines = [ "SANDBOX_IMPLEMENTATION" ]
+  deps = [ "//base" ]
+
+  if (!is_clang) {
+    # Gcc doesn't parse asm statements, so LTO doesn't work when defining
+    # a function in a global asm statement.
+    # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57703
+    configs += [ ":no_lto" ]
+  }
+}
+
 component("seccomp_bpf") {
   sources = [
     "bpf_dsl/bpf_dsl.cc",
@@ -230,7 +249,6 @@ component("seccomp_bpf") {
     "seccomp-bpf/die.h",
     "seccomp-bpf/sandbox_bpf.cc",
     "seccomp-bpf/sandbox_bpf.h",
-    "seccomp-bpf/syscall.cc",
     "seccomp-bpf/syscall.h",
     "seccomp-bpf/trap.cc",
     "seccomp-bpf/trap.h",
@@ -242,6 +260,7 @@ component("seccomp_bpf") {
   ]
   deps = [
     ":sandbox_services",
+    ":seccomp_bpf_syscall",
     "//base",
   ]