[PATCH] D50755: [Driver] -print-target-triple and -print-effective-triple options

[Petr Hosek via Phabricator via cfe-commits]

phosek created this revision.
phosek added reviewers: beanz, rnk.
Herald added a subscriber: cfe-commits.

These can be used to print Clang target and effective triple.


Repository:
  rC Clang

https://reviews.llvm.org/D50755

Files:
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/Driver.cpp
  clang/test/Driver/print-effective-triple.c
  clang/test/Driver/print-target-triple.c


Index: clang/test/Driver/print-target-triple.c
===================================================================
--- /dev/null
+++ clang/test/Driver/print-target-triple.c
@@ -0,0 +1,6 @@
+// Test that -print-target-triple prints correct triple.
+
+// RUN: %clang -print-target-triple 2>&1 \
+// RUN:     --target=x86_64-linux-gnu \
+// RUN:   | FileCheck %s
+// CHECK: x86_64-unknown-linux-gnu
Index: clang/test/Driver/print-effective-triple.c
===================================================================
--- /dev/null
+++ clang/test/Driver/print-effective-triple.c
@@ -0,0 +1,6 @@
+// Test that -print-target-triple prints correct triple.
+
+// RUN: %clang -print-effective-triple 2>&1 \
+// RUN:     --target=thumb-linux-gnu \
+// RUN:   | FileCheck %s
+// CHECK: armv4t-unknown-linux-gnu
Index: clang/lib/Driver/Driver.cpp
===================================================================
--- clang/lib/Driver/Driver.cpp
+++ clang/lib/Driver/Driver.cpp
@@ -1672,6 +1672,18 @@
     }
     return false;
   }
+
+  if (C.getArgs().hasArg(options::OPT_print_target_triple)) {
+    llvm::outs() << TC.getTripleString() << "\n";
+    return false;
+  }
+
+  if (C.getArgs().hasArg(options::OPT_print_effective_triple)) {
+    const llvm::Triple Triple(TC.ComputeEffectiveClangTriple(C.getArgs()));
+    llvm::outs() << Triple.getTriple() << "\n";
+    return false;
+  }
+
   return true;
 }
 
Index: clang/include/clang/Driver/Options.td
===================================================================
--- clang/include/clang/Driver/Options.td
+++ clang/include/clang/Driver/Options.td
@@ -2348,6 +2348,10 @@
 def print_multi_lib : Flag<["-", "--"], "print-multi-lib">;
 def print_multi_os_directory : Flag<["-", "--"], "print-multi-os-directory">,
   Flags<[Unsupported]>;
+def print_target_triple : Flag<["-", "--"], "print-target-triple">,
+  HelpText<"Print the normalized target triple">;
+def print_effective_triple : Flag<["-", "--"], "print-effective-triple">,
+  HelpText<"Print the effective target triple">;
 def print_prog_name_EQ : Joined<["-", "--"], "print-prog-name=">,
   HelpText<"Print the full program path of <name>">, MetaVarName<"<name>">;
 def print_resource_dir : Flag<["-", "--"], "print-resource-dir">,



Index: clang/test/Driver/print-target-triple.c
===================================================================
--- /dev/null
+++ clang/test/Driver/print-target-triple.c
@@ -0,0 +1,6 @@
+// Test that -print-target-triple prints correct triple.
+
+// RUN: %clang -print-target-triple 2>&1 \
+// RUN:     --target=x86_64-linux-gnu \
+// RUN:   | FileCheck %s
+// CHECK: x86_64-unknown-linux-gnu
Index: clang/test/Driver/print-effective-triple.c
===================================================================
--- /dev/null
+++ clang/test/Driver/print-effective-triple.c
@@ -0,0 +1,6 @@
+// Test that -print-target-triple prints correct triple.
+
+// RUN: %clang -print-effective-triple 2>&1 \
+// RUN:     --target=thumb-linux-gnu \
+// RUN:   | FileCheck %s
+// CHECK: armv4t-unknown-linux-gnu
Index: clang/lib/Driver/Driver.cpp
===================================================================
--- clang/lib/Driver/Driver.cpp
+++ clang/lib/Driver/Driver.cpp
@@ -1672,6 +1672,18 @@
     }
     return false;
   }
+
+  if (C.getArgs().hasArg(options::OPT_print_target_triple)) {
+    llvm::outs() << TC.getTripleString() << "\n";
+    return false;
+  }
+
+  if (C.getArgs().hasArg(options::OPT_print_effective_triple)) {
+    const llvm::Triple Triple(TC.ComputeEffectiveClangTriple(C.getArgs()));
+    llvm::outs() << Triple.getTriple() << "\n";
+    return false;
+  }
+
   return true;
 }
 
Index: clang/include/clang/Driver/Options.td
===================================================================
--- clang/include/clang/Driver/Options.td
+++ clang/include/clang/Driver/Options.td
@@ -2348,6 +2348,10 @@
 def print_multi_lib : Flag<["-", "--"], "print-multi-lib">;
 def print_multi_os_directory : Flag<["-", "--"], "print-multi-os-directory">,
   Flags<[Unsupported]>;
+def print_target_triple : Flag<["-", "--"], "print-target-triple">,
+  HelpText<"Print the normalized target triple">;
+def print_effective_triple : Flag<["-", "--"], "print-effective-triple">,
+  HelpText<"Print the effective target triple">;
 def print_prog_name_EQ : Joined<["-", "--"], "print-prog-name=">,
   HelpText<"Print the full program path of <name>">, MetaVarName<"<name>">;
 def print_resource_dir : Flag<["-", "--"], "print-resource-dir">,

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