clang/test/CodeGen/memtag-globals.cpp

   1 // RUN: %clang_cc1 -include %S/Inputs/sanitizer-extra-source.cpp \
   2 // RUN:   -fsanitize-ignorelist=%S/Inputs/sanitizer-ignorelist-global.txt \
   3 // RUN:   -fsanitize=memtag-globals -emit-llvm -o - %s | FileCheck %s
   4
   5 // RUN: %clang_cc1 -include %S/Inputs/sanitizer-extra-source.cpp \
   6 // RUN:   -fsanitize-ignorelist=%S/Inputs/sanitizer-ignorelist-src.txt \
   7 // RUN:   -fsanitize=memtag-globals -emit-llvm -o - %s | \
   8 // RUN:   FileCheck %s --check-prefix=IGNORELIST
   9
  10 int global;
  11 int __attribute__((no_sanitize("memtag"))) attributed_global;
  12 int __attribute__((disable_sanitizer_instrumentation)) disable_instrumentation_global;
  13 int ignorelisted_global;
  14 extern int external_global;
  15
  16 void func() {
  17   static int static_var = 0;
  18   const char *literal = "Hello, world!";
  19   external_global = 1;
  20 }
  21
  22 // CHECK: @{{.*}}extra_global{{.*}} ={{.*}} sanitize_memtag
  23 // CHECK: @{{.*}}global{{.*}} ={{.*}} sanitize_memtag
  24
  25 // CHECK:     @{{.*}}attributed_global{{.*}} =
  26 // CHECK-NOT: sanitize_memtag
  27 // CHECK:     @{{.*}}disable_instrumentation_global{{.*}} =
  28 // CHECK-NOT: sanitize_memtag
  29 // CHECK:     @{{.*}}ignorelisted_global{{.*}} =
  30 // CHECK-NOT: sanitize_memtag
  31
  32 // CHECK: @{{.*}}static_var{{.*}} ={{.*}} sanitize_memtag
  33 // CHECK: @{{.*}} = {{.*}} c"Hello, world!\00"{{.*}} sanitize_memtag
  34 // CHECK: @{{.*}}external_global{{.*}} ={{.*}} sanitize_memtag
  35
  36 // IGNORELIST: @{{.*}}extra_global{{.*}} ={{.*}} sanitize_memtag
  37
  38 // IGNORELIST:     @{{.*}}global{{.*}} =
  39 // IGNORELIST-NOT: sanitize_memtag
  40 // IGNORELIST:     @{{.*}}attributed_global{{.*}} =
  41 // IGNORELIST-NOT: sanitize_memtag
  42 // IGNORELIST:     @{{.*}}disable_instrumentation_global{{.*}} =
  43 // IGNORELIST-NOT: sanitize_memtag
  44 // IGNORELIST:     @{{.*}}ignorelisted_globa{{.*}} =
  45 // IGNORELIST-NOT: sanitize_memtag
  46 // IGNORELIST:     @{{.*}}static_var{{.*}} =
  47 // IGNORELIST-NOT: sanitize_memtag
  48 // IGNORELIST:     @{{.*}} = {{.*}} c"Hello, world!\00"{{.*}}
  49 // IGNORELIST-NOT: sanitize_memtag
  50 // IGNORELIST:     @{{.*}}external_global{{.*}} =
  51 // IGNORELIST-NOT: sanitize_memtag