Date: Wednesday, May 14, 2014 @ 08:57:48
  Author: foutrelis
Revision: 212363

upgpkg: llvm 3.4.1-2

Add command line option -fstack-protector-strong.

Added:
  llvm/trunk/clang-3.4-fstack-protector-strong.patch
Modified:
  llvm/trunk/PKGBUILD

-----------------------------------------+
 PKGBUILD                                |    8 +
 clang-3.4-fstack-protector-strong.patch |  165 ++++++++++++++++++++++++++++++
 2 files changed, 172 insertions(+), 1 deletion(-)

Modified: PKGBUILD
===================================================================
--- PKGBUILD    2014-05-14 06:30:22 UTC (rev 212362)
+++ PKGBUILD    2014-05-14 06:57:48 UTC (rev 212363)
@@ -13,7 +13,7 @@
          'clang-tools-extra')
 pkgver=3.4.1
 _base_ver=3.4
-pkgrel=1
+pkgrel=2
 arch=('i686' 'x86_64')
 url="http://llvm.org/";
 license=('custom:University of Illinois/NCSA Open Source License')
@@ -25,6 +25,7 @@
         
http://llvm.org/releases/$_base_ver/compiler-rt-$_base_ver.src.tar.gz{,.sig}
         clang-3.3-use-gold-linker.patch
         clang-3.4-max_align_t.patch
+        clang-3.4-fstack-protector-strong.patch
         llvm-3.4-provide-cmake-modules.patch
         llvm-Config-config.h
         llvm-Config-llvm-config.h)
@@ -38,6 +39,7 @@
             'SKIP'
             '8240adda155d7961eeb5d07ed50ead10cb7125f70283dff7f1c9fee9df3cea09'
             '0f0cbff69af54e83383385abbdeb1fee23e6e69427f8530060c492c0b07c2bbe'
+            '7a2a1ddc94f67e643c1ab74601ec07deb6d5d344d4b19ed17c900afb2f6f2863'
             'b6bb154d5ec998328e818bb09acfc6229e41367ba45cea7cc5b2dd2a7c835cf5'
             '312574e655f9a87784ca416949c505c452b819fad3061f2cde8aced6540a19a3'
             '597dc5968c695bbdbb0eac9e8eb5117fcd2773bc91edf5ec103ecffffab8bc48')
@@ -69,6 +71,10 @@
   # http://reviews.llvm.org/rL201729
   patch -d tools/clang -Np0 -i "$srcdir/clang-3.4-max_align_t.patch"
 
+  # Add command line option -fstack-protector-strong
+  # http://reviews.llvm.org/rL201120
+  patch -d tools/clang -Np0 -i 
"$srcdir/clang-3.4-fstack-protector-strong.patch"
+
   # Provide CMake modules (FS#38705)
   # http://reviews.llvm.org/rL201047
   # http://reviews.llvm.org/rL201048

Added: clang-3.4-fstack-protector-strong.patch
===================================================================
--- clang-3.4-fstack-protector-strong.patch                             (rev 0)
+++ clang-3.4-fstack-protector-strong.patch     2014-05-14 06:57:48 UTC (rev 
212363)
@@ -0,0 +1,165 @@
+Index: test/Driver/stack-protector.c
+===================================================================
+--- test/Driver/stack-protector.c      (revision 201119)
++++ test/Driver/stack-protector.c      (revision 201120)
+@@ -15,3 +15,11 @@
+ 
+ // RUN: %clang -target i386-pc-openbsd -fno-stack-protector -### %s 2>&1 | 
FileCheck %s -check-prefix=OPENBSD_OFF
+ // OPENBSD_OFF-NOT: "-stack-protector"
++
++// RUN: %clang -fstack-protector-strong -### %s 2>&1 | FileCheck %s 
-check-prefix=SSP-STRONG
++// SSP-STRONG: "-stack-protector" "2"
++// SSP-STRONG-NOT: "-stack-protector-buffer-size" 
++
++// RUN: %clang -fstack-protector-all -### %s 2>&1 | FileCheck %s 
-check-prefix=SSP-ALL
++// SSP-ALL: "-stack-protector" "3"
++// SSP-ALL-NOT: "-stack-protector-buffer-size" 
+Index: test/CodeGen/stack-protector.c
+===================================================================
+--- test/CodeGen/stack-protector.c     (revision 201119)
++++ test/CodeGen/stack-protector.c     (revision 201120)
+@@ -2,7 +2,9 @@
+ // NOSSP: define void @test1(i8* %msg) #0 {
+ // RUN: %clang_cc1 -emit-llvm -o - %s -stack-protector 1 | FileCheck 
-check-prefix=WITHSSP %s
+ // WITHSSP: define void @test1(i8* %msg) #0 {
+-// RUN: %clang_cc1 -emit-llvm -o - %s -stack-protector 2 | FileCheck 
-check-prefix=SSPREQ %s
++// RUN: %clang_cc1 -emit-llvm -o - %s -stack-protector 2 | FileCheck 
-check-prefix=SSPSTRONG %s
++// SSPSTRONG: define void @test1(i8* %msg) #0 {
++// RUN: %clang_cc1 -emit-llvm -o - %s -stack-protector 3 | FileCheck 
-check-prefix=SSPREQ %s
+ // SSPREQ: define void @test1(i8* %msg) #0 {
+ 
+ typedef __SIZE_TYPE__ size_t;
+@@ -21,4 +23,6 @@
+ 
+ // WITHSSP: attributes #{{.*}} = { nounwind ssp{{.*}} }
+ 
++// SSPSTRONG: attributes #{{.*}} = { nounwind sspstrong{{.*}} }
++
+ // SSPREQ: attributes #{{.*}} = { nounwind sspreq{{.*}} }
+Index: include/clang/Basic/LangOptions.h
+===================================================================
+--- include/clang/Basic/LangOptions.h  (revision 201119)
++++ include/clang/Basic/LangOptions.h  (revision 201120)
+@@ -58,7 +58,7 @@
+   typedef clang::Visibility Visibility;
+   
+   enum GCMode { NonGC, GCOnly, HybridGC };
+-  enum StackProtectorMode { SSPOff, SSPOn, SSPReq };
++  enum StackProtectorMode { SSPOff, SSPOn, SSPStrong, SSPReq };
+   
+   enum SignedOverflowBehaviorTy {
+     SOB_Undefined,  // Default C standard behavior.
+Index: include/clang/Driver/ToolChain.h
+===================================================================
+--- include/clang/Driver/ToolChain.h   (revision 201119)
++++ include/clang/Driver/ToolChain.h   (revision 201120)
+@@ -196,7 +196,7 @@
+   virtual bool UseObjCMixedDispatch() const { return false; }
+ 
+   /// GetDefaultStackProtectorLevel - Get the default stack protector level 
for
+-  /// this tool chain (0=off, 1=on, 2=all).
++  /// this tool chain (0=off, 1=on, 2=strong, 3=all).
+   virtual unsigned GetDefaultStackProtectorLevel(bool KernelOrKext) const {
+     return 0;
+   }
+Index: include/clang/Driver/Options.td
+===================================================================
+--- include/clang/Driver/Options.td    (revision 201119)
++++ include/clang/Driver/Options.td    (revision 201120)
+@@ -675,7 +675,8 @@
+   Flags<[CC1Option]>, HelpText<"Do not include source location information 
with diagnostics">;
+ def fno_spell_checking : Flag<["-"], "fno-spell-checking">, Group<f_Group>,
+   Flags<[CC1Option]>, HelpText<"Disable spell-checking">;
+-def fno_stack_protector : Flag<["-"], "fno-stack-protector">, Group<f_Group>;
++def fno_stack_protector : Flag<["-"], "fno-stack-protector">, Group<f_Group>,
++  HelpText<"Disable the use of stack protectors">;
+ def fno_strict_aliasing : Flag<["-"], "fno-strict-aliasing">, Group<f_Group>;
+ def fstruct_path_tbaa : Flag<["-"], "fstruct-path-tbaa">, Group<f_Group>;
+ def fno_struct_path_tbaa : Flag<["-"], "fno-struct-path-tbaa">, 
Group<f_Group>;
+@@ -773,8 +774,12 @@
+ def fno_signed_char : Flag<["-"], "fno-signed-char">, Flags<[CC1Option]>,
+     Group<clang_ignored_f_Group>, HelpText<"Char is unsigned">;
+ def fsplit_stack : Flag<["-"], "fsplit-stack">, Group<f_Group>;
+-def fstack_protector_all : Flag<["-"], "fstack-protector-all">, 
Group<f_Group>;
+-def fstack_protector : Flag<["-"], "fstack-protector">, Group<f_Group>;
++def fstack_protector_all : Flag<["-"], "fstack-protector-all">, 
Group<f_Group>,
++  HelpText<"Force the usage of stack protectors for all functions">;
++def fstack_protector_strong : Flag<["-"], "fstack-protector-strong">, 
Group<f_Group>,
++  HelpText<"Use a strong heuristic to apply stack protectors to functions">;
++def fstack_protector : Flag<["-"], "fstack-protector">, Group<f_Group>,
++  HelpText<"Enable stack protectors for functions potentially vulnerable to 
stack smashing">;
+ def fstrict_aliasing : Flag<["-"], "fstrict-aliasing">, Group<f_Group>;
+ def fstrict_enums : Flag<["-"], "fstrict-enums">, Group<f_Group>, 
Flags<[CC1Option]>,
+   HelpText<"Enable optimizations based on the strict definition of an enum's 
"  
+Index: lib/Frontend/CompilerInvocation.cpp
+===================================================================
+--- lib/Frontend/CompilerInvocation.cpp        (revision 201119)
++++ lib/Frontend/CompilerInvocation.cpp        (revision 201120)
+@@ -1435,7 +1435,8 @@
+     break;
+   case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
+   case 1: Opts.setStackProtector(LangOptions::SSPOn);  break;
+-  case 2: Opts.setStackProtector(LangOptions::SSPReq); break;
++  case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
++  case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
+   }
+ 
+   // Parse -fsanitize= arguments.
+Index: lib/Frontend/InitPreprocessor.cpp
+===================================================================
+--- lib/Frontend/InitPreprocessor.cpp  (revision 201119)
++++ lib/Frontend/InitPreprocessor.cpp  (revision 201120)
+@@ -695,8 +695,10 @@
+ 
+   if (LangOpts.getStackProtector() == LangOptions::SSPOn)
+     Builder.defineMacro("__SSP__");
++  else if (LangOpts.getStackProtector() == LangOptions::SSPStrong)
++    Builder.defineMacro("__SSP_STRONG__", "2");
+   else if (LangOpts.getStackProtector() == LangOptions::SSPReq)
+-    Builder.defineMacro("__SSP_ALL__", "2");
++    Builder.defineMacro("__SSP_ALL__", "3");
+ 
+   if (FEOpts.ProgramAction == frontend::RewriteObjC)
+     Builder.defineMacro("__weak", "__attribute__((objc_gc(weak)))");
+Index: lib/Driver/Tools.cpp
+===================================================================
+--- lib/Driver/Tools.cpp       (revision 201119)
++++ lib/Driver/Tools.cpp       (revision 201120)
+@@ -10,6 +10,7 @@
+ #include "Tools.h"
+ #include "InputInfo.h"
+ #include "ToolChains.h"
++#include "clang/Basic/LangOptions.h"
+ #include "clang/Basic/ObjCRuntime.h"
+ #include "clang/Basic/Version.h"
+ #include "clang/Driver/Action.h"
+@@ -3114,11 +3115,14 @@
+   unsigned StackProtectorLevel = 0;
+   if (Arg *A = Args.getLastArg(options::OPT_fno_stack_protector,
+                                options::OPT_fstack_protector_all,
++                               options::OPT_fstack_protector_strong,
+                                options::OPT_fstack_protector)) {
+     if (A->getOption().matches(options::OPT_fstack_protector))
+-      StackProtectorLevel = 1;
++      StackProtectorLevel = LangOptions::SSPOn;
++    else if (A->getOption().matches(options::OPT_fstack_protector_strong))
++      StackProtectorLevel = LangOptions::SSPStrong;
+     else if (A->getOption().matches(options::OPT_fstack_protector_all))
+-      StackProtectorLevel = 2;
++      StackProtectorLevel = LangOptions::SSPReq;
+   } else {
+     StackProtectorLevel =
+       getToolChain().GetDefaultStackProtectorLevel(KernelOrKext);
+Index: lib/CodeGen/CodeGenModule.cpp
+===================================================================
+--- lib/CodeGen/CodeGenModule.cpp      (revision 201119)
++++ lib/CodeGen/CodeGenModule.cpp      (revision 201120)
+@@ -651,6 +651,8 @@
+ 
+   if (LangOpts.getStackProtector() == LangOptions::SSPOn)
+     B.addAttribute(llvm::Attribute::StackProtect);
++  else if (LangOpts.getStackProtector() == LangOptions::SSPStrong)
++    B.addAttribute(llvm::Attribute::StackProtectStrong);
+   else if (LangOpts.getStackProtector() == LangOptions::SSPReq)
+     B.addAttribute(llvm::Attribute::StackProtectReq);
+ 

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