Add -g to the cc1as flags only if we're dealing with an original
source file. Otherwise -g -save-temps will error out on the compile
of any .c file.
Fixes about 4000 of the errors in the clang-tests gdb test suite.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147819 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index bacfab5..bd3d638 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -2567,12 +2567,21 @@
// Ignore explicit -force_cpusubtype_ALL option.
(void) Args.hasArg(options::OPT_force__cpusubtype__ALL);
- // Same as Clang::ConstructJob() we special case debug options to only pass
- // -g to clang. I guess if it is wrong there then it is wrong here too :) .
- Args.ClaimAllArgs(options::OPT_g_Group);
- if (Arg *A = Args.getLastArg(options::OPT_g_Group))
- if (!A->getOption().matches(options::OPT_g0))
- CmdArgs.push_back("-g");
+ // Determine the original source input.
+ const Action *SourceAction = &JA;
+ while (SourceAction->getKind() != Action::InputClass) {
+ assert(!SourceAction->getInputs().empty() && "unexpected root action!");
+ SourceAction = SourceAction->getInputs()[0];
+ }
+
+ // Forward -g, assuming we are dealing with an actual assembly file.
+ if (SourceAction->getType() == types::TY_Asm ||
+ SourceAction->getType() == types::TY_PP_Asm) {
+ Args.ClaimAllArgs(options::OPT_g_Group);
+ if (Arg *A = Args.getLastArg(options::OPT_g_Group))
+ if (!A->getOption().matches(options::OPT_g0))
+ CmdArgs.push_back("-g");
+ }
// Optionally embed the -cc1as level arguments into the debug info, for build
// analysis.