clang/test/Driver/fsanitize-object-size.c

   1 // Check that the object size check is disabled at -O0.
   2 //
   3 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=object-size %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OSIZE
   4 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=object-size %s -O0 -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OSIZE
   5 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=null,object-size %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OSIZE
   6 // RUN: %clang --target=x86_64-linux-gnu -Werror -fsanitize=null,object-size %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OSIZE
   7 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=undefined %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OSIZE-NO-WARNING
   8
   9 // Check that the object size check is enabled at other optimization levels.
  10 //
  11 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=undefined -O1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-HAS-OSIZE
  12 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=object-size -O2 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-HAS-OSIZE
  13 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=object-size -O3 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-HAS-OSIZE
  14 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=object-size -O4 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-HAS-OSIZE
  15 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=object-size -Ofast %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-HAS-OSIZE
  16 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=object-size -Os %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-HAS-OSIZE
  17 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=object-size -Oz %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-HAS-OSIZE
  18 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=object-size -Og %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-HAS-OSIZE
  19
  20 // Use of trap mode shouldn't affect the object size check.
  21 //
  22 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=undefined -fsanitize-trap=undefined -O1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-HAS-OSIZE
  23 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=undefined-trap -O1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-HAS-OSIZE
  24 // RUN: %clang --target=x86_64-linux-gnu -fsanitize=undefined-trap -fsanitize-undefined-trap-on-error -O1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-HAS-OSIZE
  25
  26 // CHECK-HAS-OSIZE-NOT: warning: the object size sanitizer
  27 // CHECK-HAS-OSIZE: -fsanitize={{[^ ]*}}object-size
  28
  29 // CHECK-NO-OSIZE: warning: the object size sanitizer has no effect at -O0, but is explicitly enabled: -fsanitize={{[^ ]*}}object-size
  30 // CHECK-NO-OSIZE-NOT: -fsanitize={{[^ ]*}}object-size
  31
  32 // CHECK-NO-OSIZE-NO-WARNING-NOT: -fsanitize={{[^ ]*}}object-size