Added support for "#pragma clang section relro=<name>"

Differential Revision: https://reviews.llvm.org/D68806

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@374934 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 13 insertions, 3 deletions

diff --git a/include/clang/Basic/Attr.td b/include/clang/Basic/Attr.td
index 279a43236a..c3a2ee325d 100644
--- a/include/clang/Basic/Attr.td
+++ b/include/clang/Basic/Attr.td
@@ -2020,6 +2020,14 @@ def PragmaClangRodataSection : InheritableAttr {
   let Documentation = [Undocumented];
 }
 
+def PragmaClangRelroSection : InheritableAttr {
+  // This attribute has no spellings as it is only ever created implicitly.
+  let Spellings = [];
+  let Args = [StringArgument<"Name">];
+  let Subjects = SubjectList<[GlobalVar], ErrorDiag>;
+  let Documentation = [Undocumented];
+}
+
 def PragmaClangTextSection : InheritableAttr {
   // This attribute has no spellings as it is only ever created implicitly.
   let Spellings = [];
diff --git a/include/clang/Basic/DiagnosticParseKinds.td b/include/clang/Basic/DiagnosticParseKinds.td
index 48ef1fb369..7c9f4da778 100644
--- a/include/clang/Basic/DiagnosticParseKinds.td
+++ b/include/clang/Basic/DiagnosticParseKinds.td
@@ -976,9 +976,9 @@ def err_pragma_misplaced_in_decl : Error<"this pragma cannot appear in %0 declar
 
 // '#pragma clang section' related errors
 def err_pragma_expected_clang_section_name : Error<
-  "expected one of [bss|data|rodata|text] section kind in '#pragma %0'">;
+  "expected one of [bss|data|rodata|text|relro] section kind in '#pragma %0'">;
 def err_pragma_clang_section_expected_equal : Error<
-  "expected '=' following '#pragma clang section %select{invalid|bss|data|rodata|text}0'">;
+  "expected '=' following '#pragma clang section %select{invalid|bss|data|rodata|text|relro}0'">;
 def warn_pragma_expected_section_name : Warning<
   "expected a string literal for the section name in '#pragma %0' - ignored">,
   InGroup<IgnoredPragmas>;
diff --git a/include/clang/Sema/Sema.h b/include/clang/Sema/Sema.h
index 6b2d603206..7c93d40952 100644
--- a/include/clang/Sema/Sema.h
+++ b/include/clang/Sema/Sema.h
@@ -418,7 +418,8 @@ public:
     PCSK_BSS          = 1,
     PCSK_Data         = 2,
     PCSK_Rodata       = 3,
-    PCSK_Text         = 4
+    PCSK_Text         = 4,
+    PCSK_Relro        = 5
    };
 
   enum PragmaClangSectionAction {
@@ -439,6 +440,7 @@ public:
    PragmaClangSection PragmaClangBSSSection;
    PragmaClangSection PragmaClangDataSection;
    PragmaClangSection PragmaClangRodataSection;
+   PragmaClangSection PragmaClangRelroSection;
    PragmaClangSection PragmaClangTextSection;
 
   enum PragmaMsStackAction {