[lld] r298567 - [ELF] Add -z nodlopen option.

[Davide Italiano via llvm-commits]

Author: davide
Date: Wed Mar 22 19:54:16 2017
New Revision: 298567

URL: http://llvm.org/viewvc/llvm-project?rev=298567&view=rev
Log:
[ELF] Add -z nodlopen option.

Patch by Mark Kettenis.

Modified:
    lld/trunk/ELF/Config.h
    lld/trunk/ELF/Driver.cpp
    lld/trunk/ELF/SyntheticSections.cpp
    lld/trunk/test/ELF/dt_flags.s

Modified: lld/trunk/ELF/Config.h
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Config.h?rev=298567&r1=298566&r2=298567&view=diff
==============================================================================
--- lld/trunk/ELF/Config.h (original)
+++ lld/trunk/ELF/Config.h Wed Mar 22 19:54:16 2017
@@ -142,6 +142,7 @@ struct Configuration {
   bool ZExecstack;
   bool ZNocopyreloc;
   bool ZNodelete;
+  bool ZNodlopen;
   bool ZNow;
   bool ZOrigin;
   bool ZRelro;

Modified: lld/trunk/ELF/Driver.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Driver.cpp?rev=298567&r1=298566&r2=298567&view=diff
==============================================================================
--- lld/trunk/ELF/Driver.cpp (original)
+++ lld/trunk/ELF/Driver.cpp Wed Mar 22 19:54:16 2017
@@ -619,6 +619,7 @@ void LinkerDriver::readConfigs(opt::Inpu
   Config->ZExecstack = hasZOption(Args, "execstack");
   Config->ZNocopyreloc = hasZOption(Args, "nocopyreloc");
   Config->ZNodelete = hasZOption(Args, "nodelete");
+  Config->ZNodlopen = hasZOption(Args, "nodlopen");
   Config->ZNow = hasZOption(Args, "now");
   Config->ZOrigin = hasZOption(Args, "origin");
   Config->ZRelro = !hasZOption(Args, "norelro");

Modified: lld/trunk/ELF/SyntheticSections.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/SyntheticSections.cpp?rev=298567&r1=298566&r2=298567&view=diff
==============================================================================
--- lld/trunk/ELF/SyntheticSections.cpp (original)
+++ lld/trunk/ELF/SyntheticSections.cpp Wed Mar 22 19:54:16 2017
@@ -1034,6 +1034,8 @@ template <class ELFT> void DynamicSectio
     DtFlags |= DF_SYMBOLIC;
   if (Config->ZNodelete)
     DtFlags1 |= DF_1_NODELETE;
+  if (Config->ZNodlopen)
+    DtFlags1 |= DF_1_NOOPEN;
   if (Config->ZNow) {
     DtFlags |= DF_BIND_NOW;
     DtFlags1 |= DF_1_NOW;

Modified: lld/trunk/test/ELF/dt_flags.s
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/dt_flags.s?rev=298567&r1=298566&r2=298567&view=diff
==============================================================================
--- lld/trunk/test/ELF/dt_flags.s (original)
+++ lld/trunk/test/ELF/dt_flags.s Wed Mar 22 19:54:16 2017
@@ -2,19 +2,19 @@
 
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
 # RUN: ld.lld -shared %t -o %t.so
-# RUN: ld.lld -z now -z nodelete -z origin -Bsymbolic %t %t.so -o %t1
+# RUN: ld.lld -z now -z nodelete -z nodlopen -z origin -Bsymbolic %t %t.so -o %t1
 # RUN: ld.lld %t %t.so -o %t2
 # RUN: llvm-readobj -dynamic-table %t1 | FileCheck -check-prefix=FLAGS %s
 # RUN: llvm-readobj -dynamic-table %t2 | FileCheck %s
 
 # FLAGS: DynamicSection [
 # FLAGS:   0x000000000000001E FLAGS ORIGIN SYMBOLIC BIND_NOW
-# FLAGS:   0x000000006FFFFFFB FLAGS_1 NOW NODELETE ORIGIN
+# FLAGS:   0x000000006FFFFFFB FLAGS_1 NOW NODELETE NOOPEN ORIGIN
 # FLAGS: ]
 
 # CHECK: DynamicSection [
 # CHECK-NOT:   0x000000000000001E FLAGS ORIGIN SYMBOLIC BIND_NOW
-# CHECK-NOT:   0x000000006FFFFFFB FLAGS_1 NOW NODELETE ORIGIN
+# CHECK-NOT:   0x000000006FFFFFFB FLAGS_1 NOW NODELETE NOOPEN ORIGIN
 # CHECK: ]
 
 .globl _start