strncpy: implement _FORTIFY_SOURCE=2

Add support for fortify source level 2 to strncpy.
This will enable detection of more areas where strncpy
is used inappropriately. For example, this would have detected
bug 8727221.

Move the fortify_source tests out of string_test.cpp, and
put it into fortify1_test.cpp.

Create a new fortify2_test.cpp file, which copies all
the tests in fortify1_test.cpp, and adds fortify_source level
2 specific tests.

Change-Id: Ica0fba531cc7d0609e4f23b8176739b13f7f7a83

1 files changed, 0 insertions, 33 deletions

diff --git a/tests/string_test.cpp b/tests/string_test.cpp
index 1720058e6..eb10c161b 100644
--- a/tests/string_test.cpp
+++ b/tests/string_test.cpp
@@ -307,39 +307,6 @@ TEST(string, strcpy) {
 
 
 #if __BIONIC__
-// We have to say "DeathTest" here so gtest knows to run this test (which exits)
-// in its own process.
-TEST(string_DeathTest, strcpy_fortified) {
-  ::testing::FLAGS_gtest_death_test_style = "threadsafe";
-  char buf[10];
-  char *orig = strdup("0123456789");
-  ASSERT_EXIT(strcpy(buf, orig), testing::KilledBySignal(SIGSEGV), "");
-  free(orig);
-}
-
-TEST(string_DeathTest, strlen_fortified) {
-  ::testing::FLAGS_gtest_death_test_style = "threadsafe";
-  char buf[10];
-  memcpy(buf, "0123456789", sizeof(buf));
-  ASSERT_EXIT(printf("%d", strlen(buf)), testing::KilledBySignal(SIGSEGV), "");
-}
-
-TEST(string_DeathTest, strchr_fortified) {
-  ::testing::FLAGS_gtest_death_test_style = "threadsafe";
-  char buf[10];
-  memcpy(buf, "0123456789", sizeof(buf));
-  ASSERT_EXIT(printf("%s", strchr(buf, 'a')), testing::KilledBySignal(SIGSEGV), "");
-}
-
-TEST(string_DeathTest, strrchr_fortified) {
-  ::testing::FLAGS_gtest_death_test_style = "threadsafe";
-  char buf[10];
-  memcpy(buf, "0123456789", sizeof(buf));
-  ASSERT_EXIT(printf("%s", strrchr(buf, 'a')), testing::KilledBySignal(SIGSEGV), "");
-}
-#endif
-
-#if __BIONIC__
 TEST(string, strlcat) {
   StringTestState state(SMALL);
   for (size_t i = 0; i < state.n; i++) {