commit fdda17179047ff0b5e28cc777dc89ebc42f083cf
author Rafael Espindola <rafael.espindola@gmail.com> Wed Nov 17 22:26:15 2010 +0000
committer Rafael Espindola <rafael.espindola@gmail.com> Wed Nov 17 22:26:15 2010 +0000
tree 9086f15f24e336221dc2a2e5dcd3f05626f65a85
parent dbe80d9933e1fb0c26bd339e1f1f2f2d76dcac0a

Implement -pie.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119577 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Driver/Tools.cpp

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index b92089d..aa1b439 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -3224,6 +3224,9 @@
     CmdArgs.push_back(A->getValue(Args));
   }
 
+  if (Args.hasArg(options::OPT_pie))
+    CmdArgs.push_back("-pie");
+
   if (Args.hasArg(options::OPT_rdynamic))
     CmdArgs.push_back("-export-dynamic");
 
@@ -3272,15 +3275,22 @@
   CmdArgs.push_back(Output.getFilename());
 
   if (!Args.hasArg(options::OPT_nostdlib)) {
-    if (!Args.hasArg(options::OPT_shared))
-      CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt1.o")));
+    const char *crt1 = NULL;
+    if (!Args.hasArg(options::OPT_shared)){
+      if (Args.hasArg(options::OPT_pie))
+        crt1 = "Scrt1.o";
+      else
+        crt1 = "crt1.o";
+    }
+    if (crt1)
+      CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1)));
 
     CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
 
     const char *crtbegin;
     if (Args.hasArg(options::OPT_static))
       crtbegin = "crtbeginT.o";
-    else if (Args.hasArg(options::OPT_shared))
+    else if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie))
       crtbegin = "crtbeginS.o";
     else
       crtbegin = "crtbegin.o";
@@ -3350,10 +3360,13 @@
         CmdArgs.push_back("-lgcc");
     }
 
-    if (Args.hasArg(options::OPT_shared))
-      CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtendS.o")));
+    const char *crtend;
+    if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie))
+      crtend = "crtendS.o";
     else
-      CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o")));
+      crtend = "crtend.o";
+
+    CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtend)));
 
     CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
   }