[compiler-rt] ed7868d - [nfc][sanitizer] Replace mmap with InternalMmapVector in test (#112756)

[via llvm-commits]

Author: Vitaly Buka
Date: 2024-10-17T11:07:43-07:00
New Revision: ed7868de03c7b93809f87ed1a01103b926564feb

URL: https://github.com/llvm/llvm-project/commit/ed7868de03c7b93809f87ed1a01103b926564feb
DIFF: https://github.com/llvm/llvm-project/commit/ed7868de03c7b93809f87ed1a01103b926564feb.diff

LOG: [nfc][sanitizer] Replace mmap with InternalMmapVector in test (#112756)

Added: 
    

Modified: 
    compiler-rt/lib/sanitizer_common/tests/sanitizer_posix_test.cpp

Removed: 
    


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diff  --git a/compiler-rt/lib/sanitizer_common/tests/sanitizer_posix_test.cpp b/compiler-rt/lib/sanitizer_common/tests/sanitizer_posix_test.cpp
index bed19d15a8ec77..803c8d39362e27 100644
--- a/compiler-rt/lib/sanitizer_common/tests/sanitizer_posix_test.cpp
+++ b/compiler-rt/lib/sanitizer_common/tests/sanitizer_posix_test.cpp
@@ -65,8 +65,8 @@ TEST(SanitizerCommon, PthreadDestructorIterations) {
 
 TEST(SanitizerCommon, IsAccessibleMemoryRange) {
   const int page_size = GetPageSize();
-  uptr mem = (uptr)mmap(0, 3 * page_size, PROT_READ | PROT_WRITE,
-                        MAP_PRIVATE | MAP_ANON, -1, 0);
+  InternalMmapVector<char> buffer(3 * page_size);
+  uptr mem = reinterpret_cast<uptr>(buffer.data());
   // Protect the middle page.
   mprotect((void *)(mem + page_size), page_size, PROT_NONE);
   EXPECT_TRUE(IsAccessibleMemoryRange(mem, page_size - 1));
@@ -78,8 +78,6 @@ TEST(SanitizerCommon, IsAccessibleMemoryRange) {
   EXPECT_TRUE(IsAccessibleMemoryRange(mem + 2 * page_size, page_size));
   EXPECT_FALSE(IsAccessibleMemoryRange(mem, 3 * page_size));
   EXPECT_FALSE(IsAccessibleMemoryRange(0x0, 2));
-
-  munmap((void *)mem, 3 * page_size);
 }
 
 }  // namespace __sanitizer