1 files changed, 31 insertions, 0 deletions
diff --git a/compiler-rt/lib/asan/lit_tests/TestCases/Linux/zero-base-shadow.cc b/compiler-rt/lib/asan/lit_tests/TestCases/Linux/zero-base-shadow.cc
new file mode 100644
index 00000000000..682e7e8d7e5
--- /dev/null
+++ b/compiler-rt/lib/asan/lit_tests/TestCases/Linux/zero-base-shadow.cc
@@ -0,0 +1,31 @@
+// RUN: %clangxx_asan -m64 -O0 -fsanitize-address-zero-base-shadow -fPIE -pie %s -o %t && %t 2>&1 | %symbolize > %t.out
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-64 < %t.out
+// RUN: %clangxx_asan -m64 -O1 -fsanitize-address-zero-base-shadow -fPIE -pie %s -o %t && %t 2>&1 | %symbolize > %t.out
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-64 < %t.out
+// RUN: %clangxx_asan -m64 -O2 -fsanitize-address-zero-base-shadow -fPIE -pie %s -o %t && %t 2>&1 | %symbolize > %t.out
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-64 < %t.out
+// RUN: %clangxx_asan -m32 -O0 -fsanitize-address-zero-base-shadow -fPIE -pie %s -o %t && %t 2>&1 | %symbolize > %t.out
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-32 < %t.out
+// RUN: %clangxx_asan -m32 -O1 -fsanitize-address-zero-base-shadow -fPIE -pie %s -o %t && %t 2>&1 | %symbolize > %t.out
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-32 < %t.out
+// RUN: %clangxx_asan -m32 -O2 -fsanitize-address-zero-base-shadow -fPIE -pie %s -o %t && %t 2>&1 | %symbolize > %t.out
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-32 < %t.out
+
+// Zero-base shadow only works on x86_64 and i386.
+// REQUIRES: x86_64-supported-target,i386-supported-target
+
+#include <string.h>
+int main(int argc, char **argv) {
+  char x[10];
+  memset(x, 0, 10);
+  int res = x[argc * 10];  // BOOOM
+  // CHECK: {{READ of size 1 at 0x.* thread T0}}
+  // CHECK: {{    #0 0x.* in _?main .*zero-base-shadow.cc:}}[[@LINE-2]]
+  // CHECK: {{Address 0x.* is .* frame}}
+  // CHECK: main
+
+  // Check that shadow for stack memory occupies lower part of address space.
+  // CHECK-64: =>0x0f
+  // CHECK-32: =>0x1
+  return res;
+}