[clang] c8fbcb1 - [Clang] Pass --pack-dyn-relocs=relr to lld for Fuchsia

[Petr Hosek via cfe-commits]

Author: Petr Hosek
Date: 2020-05-09T13:42:19-07:00
New Revision: c8fbcb1e78adcbaeadca9db9188771d81f49493a

URL: https://github.com/llvm/llvm-project/commit/c8fbcb1e78adcbaeadca9db9188771d81f49493a
DIFF: https://github.com/llvm/llvm-project/commit/c8fbcb1e78adcbaeadca9db9188771d81f49493a.diff

LOG: [Clang] Pass --pack-dyn-relocs=relr to lld for Fuchsia

The compact format is fully supported on Fuchsia and is the
preferred default.

Patch By: mcgrathr

Differential Revision: https://reviews.llvm.org/D79665

Added: 
    

Modified: 
    clang/lib/Driver/ToolChains/Fuchsia.cpp
    clang/test/Driver/fuchsia.c

Removed: 
    


################################################################################
diff  --git a/clang/lib/Driver/ToolChains/Fuchsia.cpp b/clang/lib/Driver/ToolChains/Fuchsia.cpp
index fbda60ac7a45..9a8f14de5c07 100644
--- a/clang/lib/Driver/ToolChains/Fuchsia.cpp
+++ b/clang/lib/Driver/ToolChains/Fuchsia.cpp
@@ -56,6 +56,7 @@ void fuchsia::Linker::ConstructJob(Compilation &C, const JobAction &JA,
     CmdArgs.push_back("rodynamic");
     CmdArgs.push_back("-z");
     CmdArgs.push_back("separate-loadable-segments");
+    CmdArgs.push_back("--pack-dyn-relocs=relr");
   }
 
   if (!D.SysRoot.empty())

diff  --git a/clang/test/Driver/fuchsia.c b/clang/test/Driver/fuchsia.c
index 5c1c00061d3a..3aceba70d7f8 100644
--- a/clang/test/Driver/fuchsia.c
+++ b/clang/test/Driver/fuchsia.c
@@ -23,7 +23,7 @@
 // CHECK-X86_64: "-fsanitize=safe-stack"
 // CHECK: "-stack-protector" "2"
 // CHECK-NOT: "-fcommon"
-// CHECK: {{.*}}ld.lld{{.*}}" "-z" "now" "-z" "rodynamic" "-z" "separate-loadable-segments"
+// CHECK: {{.*}}ld.lld{{.*}}" "-z" "now" "-z" "rodynamic" "-z" "separate-loadable-segments" "--pack-dyn-relocs=relr"
 // CHECK: "--sysroot=[[SYSROOT]]"
 // CHECK: "-pie"
 // CHECK: "--build-id"