From 5f13745b95aba2dda2a010c9f706577d10b23dca Mon Sep 17 00:00:00 2001
From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 5 Feb 2013 15:55:31 +0000
Subject: [PATCH] 	PR sanitizer/55374 	* config/gnu-user.h
 (LIBTSAN_EARLY_SPEC): Define. 	(STATIC_LIBTSAN_LIBS): Likewise. 	*
 gcc.c (ADD_STATIC_LIBTSAN_LIBS, LIBTSAN_EARLY_SPEC): Define. 
 (LIBTSAN_SPEC): Add ADD_STATIC_LIBTSAN_LIBS, if LIBTSAN_EARLY_SPEC 	is
 defined, don't add anything else beyond that. 	(SANITIZER_EARLY_SPEC,
 SANITIZER_SPEC): Define. 	(LINK_COMMAND_SPEC): Use them.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@195761 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/ChangeLog         |  9 +++++++++
 gcc/config/gnu-user.h | 10 +++++++++-
 gcc/gcc.c             | 43 ++++++++++++++++++++++++++++++++++---------
 3 files changed, 52 insertions(+), 10 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a6ab680..6440481 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,14 @@
 2013-02-05  Jakub Jelinek  <jakub@redhat.com>
 
+	PR sanitizer/55374
+	* config/gnu-user.h (LIBTSAN_EARLY_SPEC): Define.
+	(STATIC_LIBTSAN_LIBS): Likewise.
+	* gcc.c (ADD_STATIC_LIBTSAN_LIBS, LIBTSAN_EARLY_SPEC): Define.
+	(LIBTSAN_SPEC): Add ADD_STATIC_LIBTSAN_LIBS, if LIBTSAN_EARLY_SPEC
+	is defined, don't add anything else beyond that.
+	(SANITIZER_EARLY_SPEC, SANITIZER_SPEC): Define.
+	(LINK_COMMAND_SPEC): Use them.
+
 	PR tree-optimization/56205
 	* tree-stdarg.c (check_all_va_list_escapes): Return true if
 	there are any PHI nodes that set non-va_list_escape_vars SSA_NAME
diff --git a/gcc/config/gnu-user.h b/gcc/config/gnu-user.h
index 0024626..ba627e0 100644
--- a/gcc/config/gnu-user.h
+++ b/gcc/config/gnu-user.h
@@ -101,14 +101,22 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 /* Link -lasan early on the command line.  For -static-libasan, don't link
    it for -shared link, the executable should be compiled with -static-libasan
    in that case, and for executable link link with --{,no-}whole-archive around
-   it to force everything into the executable.  */
+   it to force everything into the executable.  And similarly for -ltsan.  */
 #if defined(HAVE_LD_STATIC_DYNAMIC)
 #undef LIBASAN_EARLY_SPEC
 #define LIBASAN_EARLY_SPEC "%{static-libasan:%{!shared:" \
   LD_STATIC_OPTION " --whole-archive -lasan --no-whole-archive " \
   LD_DYNAMIC_OPTION "}}%{!static-libasan:-lasan}"
+#undef LIBTSAN_EARLY_SPEC
+#define LIBTSAN_EARLY_SPEC "%{static-libtsan:%{!shared:" \
+  LD_STATIC_OPTION " --whole-archive -ltsan --no-whole-archive " \
+  LD_DYNAMIC_OPTION "}}%{!static-libtsan:-ltsan}"
 #endif
 
 /* Additional libraries needed by -static-libasan.  */
 #undef STATIC_LIBASAN_LIBS
 #define STATIC_LIBASAN_LIBS "-ldl -lpthread"
+
+/* Additional libraries needed by -static-libtsan.  */
+#undef STATIC_LIBTSAN_LIBS
+#define STATIC_LIBTSAN_LIBS "-ldl -lpthread"
diff --git a/gcc/gcc.c b/gcc/gcc.c
index 29735be..5022789 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -564,12 +564,25 @@ proper position among the other output files.  */
 #endif
 
 #ifndef LIBTSAN_SPEC
-#ifdef HAVE_LD_STATIC_DYNAMIC
+#ifdef STATIC_LIBTSAN_LIBS
+#define ADD_STATIC_LIBTSAN_LIBS \
+  " %{static-libtsan:" STATIC_LIBTSAN_LIBS "}"
+#else
+#define ADD_STATIC_LIBTSAN_LIBS
+#endif
+#ifdef LIBTSAN_EARLY_SPEC
+#define LIBTSAN_SPEC ADD_STATIC_LIBTSAN_LIBS
+#elif defined(HAVE_LD_STATIC_DYNAMIC)
 #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
-		     "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}"
+		     "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
+		     ADD_STATIC_LIBTSAN_LIBS
 #else
-#define LIBTSAN_SPEC "-ltsan"
+#define LIBTSAN_SPEC "-ltsan" ADD_STATIC_LIBTSAN_LIBS
+#endif
 #endif
+
+#ifndef LIBTSAN_EARLY_SPEC
+#define LIBTSAN_EARLY_SPEC ""
 #endif
 
 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
@@ -691,6 +704,21 @@ proper position among the other output files.  */
     %e-fuse-linker-plugin is not supported in this configuration}"
 #endif
 
+/* Linker command line options for -fsanitize= early on the command line.  */
+#ifndef SANITIZER_EARLY_SPEC
+#define SANITIZER_EARLY_SPEC "\
+%{!nostdlib:%{!nodefaultlibs:%{fsanitize=address:" LIBASAN_EARLY_SPEC "} \
+    %{fsanitize=thread:" LIBTSAN_EARLY_SPEC "}}}"
+#endif
+
+/* Linker command line options for -fsanitize= late on the command line.  */
+#ifndef SANITIZER_SPEC
+#define SANITIZER_SPEC "\
+%{!nostdlib:%{!nodefaultlibs:%{fsanitize=address:" LIBASAN_SPEC "\
+    %{static:%ecannot specify -static with -fsanitize=address}}\
+    %{fsanitize=thread:" LIBTSAN_SPEC "\
+    %{!pie:%{!shared:%e-fsanitize=thread linking must be done with -pie or -shared}}}}}"
+#endif
 
 /* -u* was put back because both BSD and SysV seem to support it.  */
 /* %{static:} simply prevents an error message if the target machine
@@ -706,19 +734,16 @@ proper position among the other output files.  */
 %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
     %(linker) " \
     LINK_PLUGIN_SPEC \
-    "%{flto|flto=*:%<fcompare-debug*} \
+   "%{flto|flto=*:%<fcompare-debug*} \
     %{flto} %{flto=*} %l " LINK_PIE_SPEC \
    "%{fuse-ld=*:-fuse-ld=%*}\
     %X %{o*} %{e*} %{N} %{n} %{r}\
     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}\
-    %{static:} %{L*} %(mfwrap) %(link_libgcc) \
-    %{fsanitize=address:" LIBASAN_EARLY_SPEC "} %o\
+    %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\
     %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
     %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
     %(mflib) " STACK_SPLIT_SPEC "\
-    %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
-    %{fsanitize=address:" LIBASAN_SPEC "%{static:%ecannot specify -static with -fsanitize=address}}\
-    %{fsanitize=thread:" LIBTSAN_SPEC "}\
+    %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
     %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
     %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
 #endif
-- 
2.7.4