~ubuntu-branches/debian/sid/gcc-4.8/sid

# DP: Enable libsanitizer on ARM.

libsanitizer/

2013-06-20  Christophe Lyon  <christophe.lyon@linaro.org>

	Backport from trunk r198683.
	2013-05-07  Christophe Lyon  <christophe.lyon@linaro.org>

	* configure.tgt: Add ARM pattern.

gcc/

2013-06-20  Christophe Lyon  <christophe.lyon@linaro.org>

	Backport from trunk r198683.
	2013-05-07  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/arm.c (arm_asan_shadow_offset): New function.
	(TARGET_ASAN_SHADOW_OFFSET): Define.
	* config/arm/linux-eabi.h (ASAN_CC1_SPEC): Define.
	(LINUX_OR_ANDROID_CC): Add ASAN_CC1_SPEC.

gcc/testsuite/

2013-06-20  Christophe Lyon  <christophe.lyon@linaro.org>

	Backport from trunk r198683.
	2013-05-07  Christophe Lyon  <christophe.lyon@linaro.org>

	* lib/target-supports.exp (check_effective_target_hw): New
	function.
	* c-c++-common/asan/clone-test-1.c: Call
	check_effective_target_hw.
	* c-c++-common/asan/rlimit-mmap-test-1.c: Likewise.
	* c-c++-common/asan/heap-overflow-1.c: Update regexps to accept
	possible decorations.
	* c-c++-common/asan/null-deref-1.c: Likewise.
	* c-c++-common/asan/stack-overflow-1.c: Likewise.
	* c-c++-common/asan/strncpy-overflow-1.c: Likewise.
	* c-c++-common/asan/use-after-free-1.c: Likewise.
	* g++.dg/asan/deep-thread-stack-1.C: Likewise.
	* g++.dg/asan/large-func-test-1.C: Likewise.

Index: b/src/libsanitizer/configure.tgt
===================================================================
--- a/src/libsanitizer/configure.tgt
+++ b/src/libsanitizer/configure.tgt
@@ -29,6 +29,8 @@
 	;;
   sparc*-*-linux*)
 	;;
+  arm*-*-linux*)
+	;;
   x86_64-*-darwin[1]* | i?86-*-darwin[1]*)
 	TSAN_SUPPORTED=no
 	;;
Index: b/src/gcc/testsuite/lib/target-supports.exp
===================================================================
--- a/src/gcc/testsuite/lib/target-supports.exp
+++ b/src/gcc/testsuite/lib/target-supports.exp
@@ -4591,6 +4591,33 @@
     return 0
 }
 
+# Return 1 if programs are intended to be run on hardware rather than
+# on a simulator
+
+proc check_effective_target_hw { } {
+
+    # All "src/sim" simulators set this one.
+    if [board_info target exists is_simulator] {
+	if [board_info target is_simulator] {
+	  return 0
+	} else {
+	  return 1
+	}
+    }
+
+    # The "sid" simulators don't set that one, but at least they set
+    # this one.
+    if [board_info target exists slow_simulator] {
+	if [board_info target slow_simulator] {
+	  return 0
+	} else {
+	  return 1
+	}
+    }
+
+    return 1
+}
+
 # Return 1 if the target is a VxWorks kernel.
 
 proc check_effective_target_vxworks_kernel { } {
Index: b/src/gcc/testsuite/g++.dg/asan/large-func-test-1.C
===================================================================
--- a/src/gcc/testsuite/g++.dg/asan/large-func-test-1.C
+++ b/src/gcc/testsuite/g++.dg/asan/large-func-test-1.C
@@ -37,9 +37,9 @@
 
 // { dg-output "ERROR: AddressSanitizer:? heap-buffer-overflow on address\[^\n\r]*" }
 // { dg-output "0x\[0-9a-f\]+ at pc 0x\[0-9a-f\]+ bp 0x\[0-9a-f\]+ sp 0x\[0-9a-f\]+\[^\n\r]*(\n|\r\n|\r)" }
-// { dg-output "READ of size 4 at 0x\[0-9a-f\]+ thread T0\[^\n\r]*(\n|\r\n|\r)" }
+// { dg-output "\[^\n\r]*READ of size 4 at 0x\[0-9a-f\]+ thread T0\[^\n\r]*(\n|\r\n|\r)" }
 // { dg-output "    #0 0x\[0-9a-f\]+ (in \[^\n\r]*LargeFunction\[^\n\r]*(large-func-test-1.C:18|\[^\n\r]*:0)|\[(\]).*(\n|\r\n|\r)" }
-// { dg-output "0x\[0-9a-f\]+ is located 44 bytes to the right of 400-byte region.*(\n|\r\n|\r)" }
-// { dg-output "allocated by thread T0 here:\[^\n\r]*(\n|\r\n|\r)" }
+// { dg-output "\[^\n\r]*0x\[0-9a-f\]+ is located 44 bytes to the right of 400-byte region.*(\n|\r\n|\r)" }
+// { dg-output "\[^\n\r]*allocated by thread T0 here:\[^\n\r]*(\n|\r\n|\r)" }
 // { dg-output "    #0( 0x\[0-9a-f\]+ (in _*(interceptor_|)malloc|\[(\])\[^\n\r]*(\n|\r\n|\r)" }
 // { dg-output "    #1|) 0x\[0-9a-f\]+ (in (operator new|_*_Zn\[aw\]\[mj\])|\[(\])\[^\n\r]*(\n|\r\n|\r)" }
Index: b/src/gcc/testsuite/g++.dg/asan/deep-thread-stack-1.C
===================================================================
--- a/src/gcc/testsuite/g++.dg/asan/deep-thread-stack-1.C
+++ b/src/gcc/testsuite/g++.dg/asan/deep-thread-stack-1.C
@@ -45,9 +45,9 @@
 }
 
 // { dg-output "ERROR: AddressSanitizer: heap-use-after-free.*(\n|\r\n|\r)" }
-// { dg-output "WRITE of size 4 at 0x\[0-9a-f\]+ thread T(\[0-9\]+).*(\n|\r\n|\r)" }
-// { dg-output "freed by thread T(\[0-9\]+) here:.*(\n|\r\n|\r)" }
-// { dg-output "previously allocated by thread T(\[0-9\]+) here:.*(\n|\r\n|\r)" }
+// { dg-output "\[^\n\r]*WRITE of size 4 at 0x\[0-9a-f\]+ thread T(\[0-9\]+).*(\n|\r\n|\r)" }
+// { dg-output "\[^\n\r]*freed by thread T(\[0-9\]+) here:.*(\n|\r\n|\r)" }
+// { dg-output "\[^\n\r]*previously allocated by thread T(\[0-9\]+) here:.*(\n|\r\n|\r)" }
 // { dg-output "Thread T\\2 created by T(\[0-9\]+) here:.*(\n|\r\n|\r)" }
 // { dg-output "Thread T\\8 created by T0 here:.*(\n|\r\n|\r)" }
 // { dg-output "Thread T\\4 created by T(\[0-9\]+) here:.*(\n|\r\n|\r)" }
Index: b/src/gcc/testsuite/c-c++-common/asan/strncpy-overflow-1.c
===================================================================
--- a/src/gcc/testsuite/c-c++-common/asan/strncpy-overflow-1.c
+++ b/src/gcc/testsuite/c-c++-common/asan/strncpy-overflow-1.c
@@ -15,7 +15,7 @@
 /* { dg-output "WRITE of size \[0-9\]* at 0x\[0-9a-f\]+ thread T0\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #0 0x\[0-9a-f\]+ (in _*(interceptor_|)strncpy|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #1 0x\[0-9a-f\]+ (in _*main (\[^\n\r]*strncpy-overflow-1.c:11|\[^\n\r]*:0)|\[(\]).*(\n|\r\n|\r)" } */
-/* { dg-output "0x\[0-9a-f\]+ is located 0 bytes to the right of 9-byte region\[^\n\r]*(\n|\r\n|\r)" } */
-/* { dg-output "allocated by thread T0 here:\[^\n\r]*(\n|\r\n|\r)" } */
+/* { dg-output "\[^\n\r]*0x\[0-9a-f\]+ is located 0 bytes to the right of 9-byte region\[^\n\r]*(\n|\r\n|\r)" } */
+/* { dg-output "\[^\n\r]*allocated by thread T0 here:\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #0 0x\[0-9a-f\]+ (in _*(interceptor_|)malloc|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #1 0x\[0-9a-f\]+ (in _*main (\[^\n\r]*strncpy-overflow-1.c:10|\[^\n\r]*:0)|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
Index: b/src/gcc/testsuite/c-c++-common/asan/rlimit-mmap-test-1.c
===================================================================
--- a/src/gcc/testsuite/c-c++-common/asan/rlimit-mmap-test-1.c
+++ b/src/gcc/testsuite/c-c++-common/asan/rlimit-mmap-test-1.c
@@ -2,6 +2,7 @@
 
 /* { dg-do run { target setrlimit } } */
 /* { dg-skip-if "" { *-*-* } { "*" } { "-O0" } } */
+/* { dg-require-effective-target hw } */
 /* { dg-shouldfail "asan" } */
 
 #include <stdlib.h>
Index: b/src/gcc/testsuite/c-c++-common/asan/stack-overflow-1.c
===================================================================
--- a/src/gcc/testsuite/c-c++-common/asan/stack-overflow-1.c
+++ b/src/gcc/testsuite/c-c++-common/asan/stack-overflow-1.c
@@ -19,4 +19,4 @@
 
 /* { dg-output "READ of size 1 at 0x\[0-9a-f\]+ thread T0\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #0 0x\[0-9a-f\]+ (in _*main (\[^\n\r]*stack-overflow-1.c:16|\[^\n\r]*:0)|\[(\]).*(\n|\r\n|\r)" } */
-/* { dg-output "Address 0x\[0-9a-f\]+ is\[^\n\r]*frame <main>" } */
+/* { dg-output "\[^\n\r]*Address 0x\[0-9a-f\]+ is\[^\n\r]*frame <main>" } */
Index: b/src/gcc/testsuite/c-c++-common/asan/use-after-free-1.c
===================================================================
--- a/src/gcc/testsuite/c-c++-common/asan/use-after-free-1.c
+++ b/src/gcc/testsuite/c-c++-common/asan/use-after-free-1.c
@@ -11,12 +11,12 @@
 
 /* { dg-output "ERROR: AddressSanitizer:? heap-use-after-free on address\[^\n\r]*" } */
 /* { dg-output "0x\[0-9a-f\]+ at pc 0x\[0-9a-f\]+ bp 0x\[0-9a-f\]+ sp 0x\[0-9a-f\]+\[^\n\r]*(\n|\r\n|\r)" } */
-/* { dg-output "READ of size 1 at 0x\[0-9a-f\]+ thread T0\[^\n\r]*(\n|\r\n|\r)" } */
+/* { dg-output "\[^\n\r]*READ of size 1 at 0x\[0-9a-f\]+ thread T0\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #0 0x\[0-9a-f\]+ (in _*main (\[^\n\r]*use-after-free-1.c:9|\[^\n\r]*:0)|\[(\]).*(\n|\r\n|\r)" } */
-/* { dg-output "0x\[0-9a-f\]+ is located 5 bytes inside of 10-byte region .0x\[0-9a-f\]+,0x\[0-9a-f\]+\[^\n\r]*(\n|\r\n|\r)" } */
-/* { dg-output "freed by thread T0 here:\[^\n\r]*(\n|\r\n|\r)" } */
+/* { dg-output "\[^\n\r]*0x\[0-9a-f\]+ is located 5 bytes inside of 10-byte region .0x\[0-9a-f\]+,0x\[0-9a-f\]+\[^\n\r]*(\n|\r\n|\r)" } */
+/* { dg-output "\[^\n\r]*freed by thread T0 here:\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #0 0x\[0-9a-f\]+ (in _*(interceptor_|)free|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #1 0x\[0-9a-f\]+ (in _*main (\[^\n\r]*use-after-free-1.c:8|\[^\n\r]*:0)|\[(\]).*(\n|\r\n|\r)" } */
-/* { dg-output "previously allocated by thread T0 here:\[^\n\r]*(\n|\r\n|\r)" } */
+/* { dg-output "\[^\n\r]*previously allocated by thread T0 here:\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #0 0x\[0-9a-f\]+ (in _*(interceptor_|)malloc|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #1 0x\[0-9a-f\]+ (in _*main (\[^\n\r]*use-after-free-1.c:7|\[^\n\r]*:0)|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
Index: b/src/gcc/testsuite/c-c++-common/asan/clone-test-1.c
===================================================================
--- a/src/gcc/testsuite/c-c++-common/asan/clone-test-1.c
+++ b/src/gcc/testsuite/c-c++-common/asan/clone-test-1.c
@@ -3,6 +3,7 @@
 
 /* { dg-do run { target { *-*-linux* } } } */
 /* { dg-require-effective-target clone } */
+/* { dg-require-effective-target hw } */
 /* { dg-options "-D_GNU_SOURCE" } */
 
 #include <stdio.h>
Index: b/src/gcc/testsuite/c-c++-common/asan/heap-overflow-1.c
===================================================================
--- a/src/gcc/testsuite/c-c++-common/asan/heap-overflow-1.c
+++ b/src/gcc/testsuite/c-c++-common/asan/heap-overflow-1.c
@@ -25,7 +25,7 @@
 
 /* { dg-output "READ of size 1 at 0x\[0-9a-f\]+ thread T0.*(\n|\r\n|\r)" } */
 /* { dg-output "    #0 0x\[0-9a-f\]+ (in _*main (\[^\n\r]*heap-overflow-1.c:21|\[^\n\r]*:0)|\[(\]).*(\n|\r\n|\r)" } */
-/* { dg-output "0x\[0-9a-f\]+ is located 0 bytes to the right of 10-byte region\[^\n\r]*(\n|\r\n|\r)" } */
-/* { dg-output "allocated by thread T0 here:\[^\n\r]*(\n|\r\n|\r)" } */
+/* { dg-output "\[^\n\r]*0x\[0-9a-f\]+ is located 0 bytes to the right of 10-byte region\[^\n\r]*(\n|\r\n|\r)" } */
+/* { dg-output "\[^\n\r]*allocated by thread T0 here:\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #0 0x\[0-9a-f\]+ (in _*(interceptor_|)malloc|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #1 0x\[0-9a-f\]+ (in _*main (\[^\n\r]*heap-overflow-1.c:19|\[^\n\r]*:0)|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
Index: b/src/gcc/testsuite/c-c++-common/asan/null-deref-1.c
===================================================================
--- a/src/gcc/testsuite/c-c++-common/asan/null-deref-1.c
+++ b/src/gcc/testsuite/c-c++-common/asan/null-deref-1.c
@@ -18,6 +18,6 @@
 
 /* { dg-output "ERROR: AddressSanitizer:? SEGV on unknown address\[^\n\r]*" } */
 /* { dg-output "0x\[0-9a-f\]+ \[^\n\r]*pc 0x\[0-9a-f\]+\[^\n\r]*(\n|\r\n|\r)" } */
-/* { dg-output "AddressSanitizer can not provide additional info.*(\n|\r\n|\r)" } */
+/* { dg-output "\[^\n\r]*AddressSanitizer can not provide additional info.*(\n|\r\n|\r)" } */
 /* { dg-output "    #0 0x\[0-9a-f\]+ (in \[^\n\r]*NullDeref\[^\n\r]* (\[^\n\r]*null-deref-1.c:10|\[^\n\r]*:0)|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
 /* { dg-output "    #1 0x\[0-9a-f\]+ (in _*main (\[^\n\r]*null-deref-1.c:15|\[^\n\r]*:0)|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
Index: b/src/gcc/config/arm/arm.c
===================================================================
--- a/src/gcc/config/arm/arm.c
+++ b/src/gcc/config/arm/arm.c
@@ -280,6 +280,7 @@
 
 static void arm_canonicalize_comparison (int *code, rtx *op0, rtx *op1,
 					 bool op0_preserve_value);
+static unsigned HOST_WIDE_INT arm_asan_shadow_offset (void);
 
 /* Table of machine attributes.  */
 static const struct attribute_spec arm_attribute_table[] =
@@ -649,6 +650,9 @@
 #define TARGET_CANONICALIZE_COMPARISON \
   arm_canonicalize_comparison
 
+#undef TARGET_ASAN_SHADOW_OFFSET
+#define TARGET_ASAN_SHADOW_OFFSET arm_asan_shadow_offset
+
 struct gcc_target targetm = TARGET_INITIALIZER;
 
 /* Obstack for minipool constant handling.  */
@@ -27450,4 +27454,12 @@
 
 }
 
+/* Implement the TARGET_ASAN_SHADOW_OFFSET hook.  */
+
+static unsigned HOST_WIDE_INT
+arm_asan_shadow_offset (void)
+{
+  return (unsigned HOST_WIDE_INT) 1 << 29;
+}
+
 #include "gt-arm.h"
Index: b/src/gcc/config/arm/linux-eabi.h
===================================================================
--- a/src/gcc/config/arm/linux-eabi.h
+++ b/src/gcc/config/arm/linux-eabi.h
@@ -84,10 +84,14 @@
   LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC,				\
 		       LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
 
+#undef  ASAN_CC1_SPEC
+#define ASAN_CC1_SPEC "%{fsanitize=*:-funwind-tables}"
+
 #undef  CC1_SPEC
 #define CC1_SPEC							\
-  LINUX_OR_ANDROID_CC (GNU_USER_TARGET_CC1_SPEC,			\
-		       GNU_USER_TARGET_CC1_SPEC " " ANDROID_CC1_SPEC)
+  LINUX_OR_ANDROID_CC (GNU_USER_TARGET_CC1_SPEC " " ASAN_CC1_SPEC,	\
+		       GNU_USER_TARGET_CC1_SPEC " " ASAN_CC1_SPEC " "	\
+		       ANDROID_CC1_SPEC)
 
 #define CC1PLUS_SPEC \
   LINUX_OR_ANDROID_CC ("", ANDROID_CC1PLUS_SPEC)