diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp --- a/clang/lib/Driver/ToolChains/CommonArgs.cpp +++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp @@ -508,6 +508,14 @@ CmdArgs.push_back(Args.MakeArgString(Plugin)); } + // Note, this solution is far from perfect, better to encode it into IR + // metadata, but this may not be worth it, since it looks like aranges is on + // the way out. + if (Args.hasArg(options::OPT_gdwarf_aranges)) { + CmdArgs.push_back( + Args.MakeArgString("--plugin-opt=-generate-arange-section")); + } + // Try to pass driver level flags relevant to LTO code generation down to // the plugin. diff --git a/clang/test/Driver/debug-options-aranges.c b/clang/test/Driver/debug-options-aranges.c new file mode 100644 --- /dev/null +++ b/clang/test/Driver/debug-options-aranges.c @@ -0,0 +1,6 @@ +// REQUIRES: lld + +/// Check that the linker plugin will get -generate-arange-section. +// RUN: %clang -### -g --target=x86_64-linux -flto -gdwarf-aranges %s 2>&1 | FileCheck %s +// RUN: %clang -### -g --target=x86_64-linux -flto=thin -gdwarf-aranges %s 2>&1 | FileCheck %s +// CHECK: --plugin-opt=-generate-arange-section