# DP: Fix some gcc and g++ testcases to pass with hardening defaults

---
 src/gcc/testsuite/c-c++-common/asan/strncpy-overflow-1.c     |    2 +-
 src/gcc/testsuite/g++.dg/asan/asan_test.C                    |    2 +-
 src/gcc/testsuite/g++.dg/asan/interception-malloc-test-1.C   |    2 +-
 src/gcc/testsuite/g++.dg/fstack-protector-strong.C           |    2 +-
 src/gcc/testsuite/gcc.c-torture/execute/memset-1.c           |    1 -
 src/gcc/testsuite/gcc.c-torture/execute/memset-1.x           |    5 +++++
 src/gcc/testsuite/gcc.dg/fstack-protector-strong.c           |    2 +-
 src/gcc/testsuite/gcc.dg/stack-usage-1.c                     |    2 +-
 src/gcc/testsuite/gcc.dg/superblock.c                        |    2 +-
 src/gcc/testsuite/gcc.target/i386/sw-1.c                     |    2 +-
 11 files changed, 14 insertions(+), 10 deletions(-)

--- a/src/gcc/testsuite/g++.dg/asan/asan_test.C
+++ b/src/gcc/testsuite/g++.dg/asan/asan_test.C
@@ -2,7 +2,7 @@
 // { dg-skip-if "" { *-*-* } { "*" } { "-O2" } }
 // { dg-skip-if "" { *-*-* } { "-flto" } { "" } }
 // { dg-additional-sources "asan_globals_test-wrapper.cc" }
-// { dg-options "-std=c++11 -fsanitize=address -fno-builtin -Wall -Werror -Wno-alloc-size-larger-than -Wno-stringop-overflow -g -DASAN_UAR=0 -DASAN_HAS_EXCEPTIONS=1 -DASAN_HAS_BLACKLIST=0 -DSANITIZER_USE_DEJAGNU_GTEST=1 -lasan -lpthread -ldl" }
+// { dg-options "-std=c++11 -fsanitize=address -fno-builtin -Wall -Werror -Wno-alloc-size-larger-than -Wno-stringop-overflow -Wno-unused-result -g -DASAN_UAR=0 -DASAN_HAS_EXCEPTIONS=1 -DASAN_HAS_BLACKLIST=0 -DSANITIZER_USE_DEJAGNU_GTEST=1 -lasan -lpthread -ldl" }
 // { dg-additional-options "-DASAN_NEEDS_SEGV=1" { target { ! arm*-*-* } } }
 // { dg-additional-options "-DASAN_LOW_MEMORY=1 -DASAN_NEEDS_SEGV=0" { target arm*-*-* } }
 // { dg-additional-options "-DASAN_AVOID_EXPENSIVE_TESTS=1" { target { ! run_expensive_tests } } }
--- a/src/gcc/testsuite/g++.dg/asan/interception-malloc-test-1.C
+++ b/src/gcc/testsuite/g++.dg/asan/interception-malloc-test-1.C
@@ -1,7 +1,7 @@
 // ASan interceptor can be accessed with __interceptor_ prefix.
 
 // { dg-do run { target *-*-linux* } }
-// { dg-options "-fno-builtin-free" }
+// { dg-options "-fno-builtin-free -Wno-unused-result" }
 // { dg-additional-options "-D__NO_INLINE__" { target { *-*-linux-gnu } } }
 // { dg-shouldfail "asan" }
 
--- a/src/gcc/testsuite/gcc.c-torture/execute/memset-1.c
+++ b/src/gcc/testsuite/gcc.c-torture/execute/memset-1.c
@@ -1,3 +1,5 @@
+/* { dg-prune-output ".*warning: memset used with constant zero length parameter.*" } */
+
 /* Copyright (C) 2002  Free Software Foundation.
 
    Test memset with various combinations of pointer alignments and lengths to
--- a/src/gcc/testsuite/c-c++-common/asan/strncpy-overflow-1.c
+++ b/src/gcc/testsuite/c-c++-common/asan/strncpy-overflow-1.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-fno-builtin-malloc -fno-builtin-strncpy" } */
+/* { dg-options "-fno-builtin-malloc -fno-builtin-strncpy -U_FORTIFY_SOURCE" } */
 /* { dg-additional-options "-D_FORTIFY_SOURCE=0 -gdwarf-3" { target *-*-darwin* } } */
 /* { dg-shouldfail "asan" } */
 
--- a/src/gcc/testsuite/gcc.dg/superblock.c
+++ b/src/gcc/testsuite/gcc.dg/superblock.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -fno-asynchronous-unwind-tables -fsched2-use-superblocks -fdump-rtl-sched2 -fdump-rtl-bbro" } */
+/* { dg-options "-O2 -fno-asynchronous-unwind-tables -fsched2-use-superblocks -fdump-rtl-sched2 -fdump-rtl-bbro -fno-stack-protector" } */
 /* { dg-require-effective-target scheduling } */
 
 typedef int aligned __attribute__ ((aligned (64)));
--- a/src/gcc/testsuite/gcc.dg/stack-usage-1.c
+++ b/src/gcc/testsuite/gcc.dg/stack-usage-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-fstack-usage" } */
+/* { dg-options "-fstack-usage -fno-stack-protector" } */
 /* nvptx doesn't have a reg allocator, and hence no stack usage data.  */
 /* { dg-skip-if "" { nvptx-*-* } } */
 
--- a/src/gcc/testsuite/gcc.target/i386/sw-1.c
+++ b/src/gcc/testsuite/gcc.target/i386/sw-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -mtune=generic -fshrink-wrap -fdump-rtl-pro_and_epilogue" } */
+/* { dg-options "-O2 -mtune=generic -fshrink-wrap -fdump-rtl-pro_and_epilogue -fno-stack-protector" } */
 /* { dg-skip-if "No shrink-wrapping preformed" { x86_64-*-mingw* } } */
 
 #include <string.h>
--- a/src/gcc/testsuite/gcc.dg/fstack-protector-strong.c
+++ b/src/gcc/testsuite/gcc.dg/fstack-protector-strong.c
@@ -1,7 +1,7 @@
 /* Test that stack protection is done on chosen functions. */
 
 /* { dg-do compile { target i?86-*-* x86_64-*-* rs6000-*-* s390x-*-* } } */
-/* { dg-options "-O2 -fstack-protector-strong" } */
+/* { dg-options "-O2 -fstack-protector-strong -U_FORTIFY_SOURCE" } */
 
 /* This test checks the presence of __stack_chk_fail function in assembler.
  * Compiler generates _stack_chk_fail_local (wrapper) calls instead for PIC.
--- a/src/gcc/testsuite/g++.dg/fstack-protector-strong.C
+++ b/src/gcc/testsuite/g++.dg/fstack-protector-strong.C
@@ -1,7 +1,7 @@
 /* Test that stack protection is done on chosen functions. */
 
 /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
-/* { dg-options "-O2 -fstack-protector-strong" } */
+/* { dg-options "-O2 -fstack-protector-strong -U_FORTIFY_SOURCE" } */
 
 /* This test checks the presence of __stack_chk_fail function in assembler.
  * Compiler generates _stack_chk_fail_local (wrapper) calls instead for PIC.
--- /dev/null
+++ b/src/gcc/testsuite/gcc.c-torture/execute/memset-1.x
@@ -0,0 +1,5 @@
+# Implement "/* { dg-options "-U_FORITFY_SOURCE" } */", due to
+# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20567
+
+set additional_flags "-U_FORTIFY_SOURCE"
+return 0
