r201379 - Add a command line option -gdwarf-aranges that will turn on emitting

[Eric Christopher]

Author: echristo
Date: Thu Feb 13 19:27:03 2014
New Revision: 201379

URL: http://llvm.org/viewvc/llvm-project?rev=201379&view=rev
Log:
Add a command line option -gdwarf-aranges that will turn on emitting
the dwarf .debug_aranges section.

Modified:
    cfe/trunk/include/clang/Driver/CC1Options.td
    cfe/trunk/include/clang/Driver/Options.td
    cfe/trunk/lib/Driver/Tools.cpp
    cfe/trunk/test/Driver/debug-options.c

Modified: cfe/trunk/include/clang/Driver/CC1Options.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/CC1Options.td?rev=201379&r1=201378&r2=201379&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/CC1Options.td (original)
+++ cfe/trunk/include/clang/Driver/CC1Options.td Thu Feb 13 19:27:03 2014
@@ -138,6 +138,8 @@ def split_dwarf : Flag<["-"], "split-dwa
   HelpText<"Split out the dwarf .dwo sections">;
 def gnu_pubnames : Flag<["-"], "gnu-pubnames">,
   HelpText<"Emit newer GNU style pubnames">;
+def arange_sections : Flag<["-"], "arange_sections">,
+  HelpText<"Emit DWARF .debug_arange sections">;
 def fforbid_guard_variables : Flag<["-"], "fforbid-guard-variables">,
   HelpText<"Emit an error if a C++ static local initializer would need a guard variable">;
 def no_implicit_float : Flag<["-"], "no-implicit-float">,

Modified: cfe/trunk/include/clang/Driver/Options.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=201379&r1=201378&r2=201379&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/Options.td (original)
+++ cfe/trunk/include/clang/Driver/Options.td Thu Feb 13 19:27:03 2014
@@ -924,6 +924,7 @@ def gno_strict_dwarf : Flag<["-"], "gno-
 def gcolumn_info : Flag<["-"], "gcolumn-info">, Group<g_flags_Group>;
 def gsplit_dwarf : Flag<["-"], "gsplit-dwarf">, Group<g_flags_Group>;
 def ggnu_pubnames : Flag<["-"], "ggnu-pubnames">, Group<g_flags_Group>;
+def gdwarf_aranges : Flag<["-"], "gdwarf-aranges">, Group<g_flags_Group>;
 def headerpad__max__install__names : Joined<["-"], "headerpad_max_install_names">;
 def help : Flag<["-", "--"], "help">, Flags<[CC1Option]>,
   HelpText<"Display available options">;

Modified: cfe/trunk/lib/Driver/Tools.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?rev=201379&r1=201378&r2=201379&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/Tools.cpp (original)
+++ cfe/trunk/lib/Driver/Tools.cpp Thu Feb 13 19:27:03 2014
@@ -2690,6 +2690,13 @@ void Clang::ConstructJob(Compilation &C,
     CmdArgs.push_back("-generate-gnu-dwarf-pub-sections");
   }
 
+  // -gdwarf-aranges turns on the emission of the aranges section in the
+  // backend.
+  if (Args.hasArg(options::OPT_gdwarf_aranges)) {
+    CmdArgs.push_back("-backend-option");
+    CmdArgs.push_back("-generate-arange-section");
+  }
+
   if (Args.hasFlag(options::OPT_fdebug_types_section,
                    options::OPT_fno_debug_types_section, false)) {
     CmdArgs.push_back("-backend-option");

Modified: cfe/trunk/test/Driver/debug-options.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/debug-options.c?rev=201379&r1=201378&r2=201379&view=diff
==============================================================================
--- cfe/trunk/test/Driver/debug-options.c (original)
+++ cfe/trunk/test/Driver/debug-options.c Thu Feb 13 19:27:03 2014
@@ -50,6 +50,8 @@
 //
 // RUN: %clang -### -c -ggnu-pubnames %s 2>&1 | FileCheck -check-prefix=GOPT %s
 //
+// RUN: %clang -### -c -gdwarf-aranges %s 2>&1 | FileCheck -check-prefix=GARANGE %s
+//
 // RUN: %clang -### -fdebug-types-section %s 2>&1 \
 // RUN:        | FileCheck -check-prefix=FDTS %s
 //
@@ -62,7 +64,7 @@
 //
 // G_DARWIN: "-cc1"
 // G_DARWIN: "-gdwarf-2"
-// 
+//
 // G_D2: "-cc1"
 // G_D2: "-gdwarf-2"
 //
@@ -86,6 +88,8 @@
 //
 // GOPT: -generate-gnu-dwarf-pub-sections
 //
+// GARANGE: -generate-arange-section
+//
 // FDTS: "-backend-option" "-generate-type-units"
 //
 // NOFDTS-NOT: "-backend-option" "-generate-type-units"