[PATCH] D87164: Extending Baremetal toolchain's support for the rtlib option.

[Manuel Carrasco via Phabricator via cfe-commits]

mcarrasco updated this revision to Diff 291262.

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D87164/new/

https://reviews.llvm.org/D87164

Files:
  clang/lib/Driver/ToolChains/BareMetal.cpp
  clang/test/Driver/baremetal.cpp


Index: clang/test/Driver/baremetal.cpp
===================================================================
--- clang/test/Driver/baremetal.cpp
+++ clang/test/Driver/baremetal.cpp
@@ -83,3 +83,7 @@
 // RUN: %clangxx -target arm-none-eabi -mthread-model posix -v 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-THREAD-MODEL-POSIX
 // CHECK-THREAD-MODEL-POSIX: Thread model: posix
+
+// RUN: %clang -### -target arm-none-eabi -rtlib=libgcc -v %s 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-RTLIB-GCC
+// CHECK-RTLIB-GCC: -lgcc
Index: clang/lib/Driver/ToolChains/BareMetal.cpp
===================================================================
--- clang/lib/Driver/ToolChains/BareMetal.cpp
+++ clang/lib/Driver/ToolChains/BareMetal.cpp
@@ -156,8 +156,17 @@
 
 void BareMetal::AddLinkRuntimeLib(const ArgList &Args,
                                   ArgStringList &CmdArgs) const {
-  CmdArgs.push_back(Args.MakeArgString("-lclang_rt.builtins-" +
-                                       getTriple().getArchName()));
+  ToolChain::RuntimeLibType RLT = GetRuntimeLibType(Args);
+  switch (RLT) {
+  case ToolChain::RLT_CompilerRT:
+    CmdArgs.push_back(
+        Args.MakeArgString("-lclang_rt.builtins-" + getTriple().getArchName()));
+    return;
+  case ToolChain::RLT_Libgcc:
+    CmdArgs.push_back("-lgcc");
+    return;
+  }
+  llvm_unreachable("Unhandled RuntimeLibType.");
 }
 
 void baremetal::Linker::ConstructJob(Compilation &C, const JobAction &JA,


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D87164.291262.patch
Type: text/x-patch
Size: 1473 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20200911/3372a6a2/attachment.bin>