[compiler-rt] Fix broken unittest on win64

[etienneb]

Summary

This is an other tentative to fix:
https://reviews.llvm.org/D22588

It's less clever, but should work.

Turn out there is not an easy way to write a portable print
for a pointer in lowercase without the prefix 0x.

[rnk]

OK, let's do it the less fancy way. =/ lgtm

test/asan/TestCases/debug_mapping.cc

24

This might produce -Wformat warnings, but I guess we don't care.

test/asan/TestCases/debug_stacks.cc

44

No need to cast, this is already a void*, right?

[etienneb]

fix rnk@ comments

test/asan/TestCases/debug_mapping.cc

 // Checks that the debugging API returns correct shadow scale and offset.
 // RUN: %clangxx_asan -O %s -o %t
 // RUN: %env_asan_opts=verbosity=1 %run %t 2>&1 | FileCheck %s
 
 #include <sanitizer/asan_interface.h>
 #include <stdio.h>
 #include <stdlib.h>
 
+#if _WIN64
+#define PTR "%llx"
+#else
+#define PTR "%lx"
+#endif
+
 // printed because of verbosity=1
 // CHECK: SHADOW_SCALE: [[SCALE:[0-9]+]]
 // CHECK: SHADOW_OFFSET: [[OFFSET:0x[0-9a-f]+]]
 
 int main() {
   size_t scale, offset;
   __asan_get_shadow_mapping(&scale, &offset);
 
   fprintf(stderr, "scale: %d\n", (int)scale);
-  fprintf(stderr, "offset: 0x%lx\n", offset);
+  fprintf(stderr, "offset: 0x" PTR "\n", (void*)offset);
 
   // CHECK: scale: [[SCALE]]
   // CHECK: offset: [[OFFSET]]
 
   return 0;
 }

test/asan/TestCases/debug_stacks.cc

 // Check that the stack trace debugging API works and returns correct
 // malloc and free stacks.
 // RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
 // FIXME: Figure out why allocation/free stack traces may be too short on ARM.
 // REQUIRES: stable-runtime
 
+#if _WIN64
+#define PTR "%llx"
+#else
+#define PTR "%lx"
+#endif
+
 #include <sanitizer/asan_interface.h>
 #include <stdio.h>
 #include <stdlib.h>
 
 char *mem;
 void func1() {
   mem = (char *)malloc(10);
 }
int main() {
   int thread_id;
   num_frames = __asan_get_alloc_stack(mem, trace, num_frames, &thread_id);
 
   fprintf(stderr, "alloc stack retval %s\n", (num_frames > 0 && num_frames < 10)
           ? "ok" : "");
   // CHECK: alloc stack retval ok
   fprintf(stderr, "thread id = %d\n", thread_id);
   // CHECK: thread id = 0
-  fprintf(stderr, "0x%lx\n", trace[0]);
+  fprintf(stderr, "0x" PTR "\n", trace[0]);
   // CHECK: [[ALLOC_FRAME_0:0x[0-9a-f]+]]
-  fprintf(stderr, "0x%lx\n", trace[1]);
+  fprintf(stderr, "0x" PTR "\n", trace[1]);
   // CHECK: [[ALLOC_FRAME_1:0x[0-9a-f]+]]
 
   num_frames = 100;
   num_frames = __asan_get_free_stack(mem, trace, num_frames, &thread_id);
 
   fprintf(stderr, "free stack retval %s\n", (num_frames > 0 && num_frames < 10)
           ? "ok" : "");
   // CHECK: free stack retval ok
   fprintf(stderr, "thread id = %d\n", thread_id);
   // CHECK: thread id = 0
-  fprintf(stderr, "0x%lx\n", trace[0]);
+  fprintf(stderr, "0x" PTR "\n", trace[0]);
   // CHECK: [[FREE_FRAME_0:0x[0-9a-f]+]]
-  fprintf(stderr, "0x%lx\n", trace[1]);
+  fprintf(stderr, "0x" PTR "\n", trace[1]);
   // CHECK: [[FREE_FRAME_1:0x[0-9a-f]+]]
 
   mem[0] = 'A'; // BOOM
 
   // CHECK: ERROR: AddressSanitizer: heap-use-after-free
   // CHECK: WRITE of size 1 at 0x{{.*}}
   // CHECK: freed by thread T0 here:
   // CHECK: #0 [[FREE_FRAME_0]]
   // CHECK: #1 [[FREE_FRAME_1]]
   // CHECK: previously allocated by thread T0 here:
   // CHECK: #0 [[ALLOC_FRAME_0]]
   // CHECK: #1 [[ALLOC_FRAME_1]]
 
   return 0;
 }