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-rw-r--r--unittests/Support/MemoryTest.cpp713
1 files changed, 357 insertions, 356 deletions
diff --git a/unittests/Support/MemoryTest.cpp b/unittests/Support/MemoryTest.cpp
index 21cb27eaf0ef..fae67a8dd256 100644
--- a/unittests/Support/MemoryTest.cpp
+++ b/unittests/Support/MemoryTest.cpp
@@ -1,356 +1,357 @@
-//===- llvm/unittest/Support/AllocatorTest.cpp - BumpPtrAllocator tests ---===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/Memory.h"
-#include "llvm/Support/Process.h"
-
-#include "gtest/gtest.h"
-#include <cstdlib>
-
-using namespace llvm;
-using namespace sys;
-
-namespace {
-
-class MappedMemoryTest : public ::testing::TestWithParam<unsigned> {
-public:
- MappedMemoryTest() {
- Flags = GetParam();
- PageSize = sys::Process::GetPageSize();
- }
-
-protected:
- // Adds RW flags to permit testing of the resulting memory
- unsigned getTestableEquivalent(unsigned RequestedFlags) {
- switch (RequestedFlags) {
- case Memory::MF_READ:
- case Memory::MF_WRITE:
- case Memory::MF_READ|Memory::MF_WRITE:
- return Memory::MF_READ|Memory::MF_WRITE;
- case Memory::MF_READ|Memory::MF_EXEC:
- case Memory::MF_READ|Memory::MF_WRITE|Memory::MF_EXEC:
- case Memory::MF_EXEC:
- return Memory::MF_READ|Memory::MF_WRITE|Memory::MF_EXEC;
- }
- // Default in case values are added to the enum, as required by some compilers
- return Memory::MF_READ|Memory::MF_WRITE;
- }
-
- // Returns true if the memory blocks overlap
- bool doesOverlap(MemoryBlock M1, MemoryBlock M2) {
- if (M1.base() == M2.base())
- return true;
-
- if (M1.base() > M2.base())
- return (unsigned char *)M2.base() + M2.size() > M1.base();
-
- return (unsigned char *)M1.base() + M1.size() > M2.base();
- }
-
- unsigned Flags;
- size_t PageSize;
-};
-
-TEST_P(MappedMemoryTest, AllocAndRelease) {
- error_code EC;
- MemoryBlock M1 = Memory::allocateMappedMemory(sizeof(int), 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
-
- EXPECT_NE((void*)0, M1.base());
- EXPECT_LE(sizeof(int), M1.size());
-
- EXPECT_FALSE(Memory::releaseMappedMemory(M1));
-}
-
-TEST_P(MappedMemoryTest, MultipleAllocAndRelease) {
- error_code EC;
- MemoryBlock M1 = Memory::allocateMappedMemory(16, 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M2 = Memory::allocateMappedMemory(64, 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M3 = Memory::allocateMappedMemory(32, 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
-
- EXPECT_NE((void*)0, M1.base());
- EXPECT_LE(16U, M1.size());
- EXPECT_NE((void*)0, M2.base());
- EXPECT_LE(64U, M2.size());
- EXPECT_NE((void*)0, M3.base());
- EXPECT_LE(32U, M3.size());
-
- EXPECT_FALSE(doesOverlap(M1, M2));
- EXPECT_FALSE(doesOverlap(M2, M3));
- EXPECT_FALSE(doesOverlap(M1, M3));
-
- EXPECT_FALSE(Memory::releaseMappedMemory(M1));
- EXPECT_FALSE(Memory::releaseMappedMemory(M3));
- MemoryBlock M4 = Memory::allocateMappedMemory(16, 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- EXPECT_NE((void*)0, M4.base());
- EXPECT_LE(16U, M4.size());
- EXPECT_FALSE(Memory::releaseMappedMemory(M4));
- EXPECT_FALSE(Memory::releaseMappedMemory(M2));
-}
-
-TEST_P(MappedMemoryTest, BasicWrite) {
- // This test applies only to writeable combinations
- if (Flags && !(Flags & Memory::MF_WRITE))
- return;
-
- error_code EC;
- MemoryBlock M1 = Memory::allocateMappedMemory(sizeof(int), 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
-
- EXPECT_NE((void*)0, M1.base());
- EXPECT_LE(sizeof(int), M1.size());
-
- int *a = (int*)M1.base();
- *a = 1;
- EXPECT_EQ(1, *a);
-
- EXPECT_FALSE(Memory::releaseMappedMemory(M1));
-}
-
-TEST_P(MappedMemoryTest, MultipleWrite) {
- // This test applies only to writeable combinations
- if (Flags && !(Flags & Memory::MF_WRITE))
- return;
- error_code EC;
- MemoryBlock M1 = Memory::allocateMappedMemory(sizeof(int), 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M2 = Memory::allocateMappedMemory(8 * sizeof(int), 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M3 = Memory::allocateMappedMemory(4 * sizeof(int), 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
-
- EXPECT_FALSE(doesOverlap(M1, M2));
- EXPECT_FALSE(doesOverlap(M2, M3));
- EXPECT_FALSE(doesOverlap(M1, M3));
-
- EXPECT_NE((void*)0, M1.base());
- EXPECT_LE(1U * sizeof(int), M1.size());
- EXPECT_NE((void*)0, M2.base());
- EXPECT_LE(8U * sizeof(int), M2.size());
- EXPECT_NE((void*)0, M3.base());
- EXPECT_LE(4U * sizeof(int), M3.size());
-
- int *x = (int*)M1.base();
- *x = 1;
-
- int *y = (int*)M2.base();
- for (int i = 0; i < 8; i++) {
- y[i] = i;
- }
-
- int *z = (int*)M3.base();
- *z = 42;
-
- EXPECT_EQ(1, *x);
- EXPECT_EQ(7, y[7]);
- EXPECT_EQ(42, *z);
-
- EXPECT_FALSE(Memory::releaseMappedMemory(M1));
- EXPECT_FALSE(Memory::releaseMappedMemory(M3));
-
- MemoryBlock M4 = Memory::allocateMappedMemory(64 * sizeof(int), 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- EXPECT_NE((void*)0, M4.base());
- EXPECT_LE(64U * sizeof(int), M4.size());
- x = (int*)M4.base();
- *x = 4;
- EXPECT_EQ(4, *x);
- EXPECT_FALSE(Memory::releaseMappedMemory(M4));
-
- // Verify that M2 remains unaffected by other activity
- for (int i = 0; i < 8; i++) {
- EXPECT_EQ(i, y[i]);
- }
- EXPECT_FALSE(Memory::releaseMappedMemory(M2));
-}
-
-TEST_P(MappedMemoryTest, EnabledWrite) {
- error_code EC;
- MemoryBlock M1 = Memory::allocateMappedMemory(2 * sizeof(int), 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M2 = Memory::allocateMappedMemory(8 * sizeof(int), 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M3 = Memory::allocateMappedMemory(4 * sizeof(int), 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
-
- EXPECT_NE((void*)0, M1.base());
- EXPECT_LE(2U * sizeof(int), M1.size());
- EXPECT_NE((void*)0, M2.base());
- EXPECT_LE(8U * sizeof(int), M2.size());
- EXPECT_NE((void*)0, M3.base());
- EXPECT_LE(4U * sizeof(int), M3.size());
-
- EXPECT_FALSE(Memory::protectMappedMemory(M1, getTestableEquivalent(Flags)));
- EXPECT_FALSE(Memory::protectMappedMemory(M2, getTestableEquivalent(Flags)));
- EXPECT_FALSE(Memory::protectMappedMemory(M3, getTestableEquivalent(Flags)));
-
- EXPECT_FALSE(doesOverlap(M1, M2));
- EXPECT_FALSE(doesOverlap(M2, M3));
- EXPECT_FALSE(doesOverlap(M1, M3));
-
- int *x = (int*)M1.base();
- *x = 1;
- int *y = (int*)M2.base();
- for (unsigned int i = 0; i < 8; i++) {
- y[i] = i;
- }
- int *z = (int*)M3.base();
- *z = 42;
-
- EXPECT_EQ(1, *x);
- EXPECT_EQ(7, y[7]);
- EXPECT_EQ(42, *z);
-
- EXPECT_FALSE(Memory::releaseMappedMemory(M1));
- EXPECT_FALSE(Memory::releaseMappedMemory(M3));
- EXPECT_EQ(6, y[6]);
-
- MemoryBlock M4 = Memory::allocateMappedMemory(16, 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- EXPECT_NE((void*)0, M4.base());
- EXPECT_LE(16U, M4.size());
- EXPECT_EQ(error_code::success(), Memory::protectMappedMemory(M4, getTestableEquivalent(Flags)));
- x = (int*)M4.base();
- *x = 4;
- EXPECT_EQ(4, *x);
- EXPECT_FALSE(Memory::releaseMappedMemory(M4));
- EXPECT_FALSE(Memory::releaseMappedMemory(M2));
-}
-
-TEST_P(MappedMemoryTest, SuccessiveNear) {
- error_code EC;
- MemoryBlock M1 = Memory::allocateMappedMemory(16, 0, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M2 = Memory::allocateMappedMemory(64, &M1, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M3 = Memory::allocateMappedMemory(32, &M2, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
-
- EXPECT_NE((void*)0, M1.base());
- EXPECT_LE(16U, M1.size());
- EXPECT_NE((void*)0, M2.base());
- EXPECT_LE(64U, M2.size());
- EXPECT_NE((void*)0, M3.base());
- EXPECT_LE(32U, M3.size());
-
- EXPECT_FALSE(doesOverlap(M1, M2));
- EXPECT_FALSE(doesOverlap(M2, M3));
- EXPECT_FALSE(doesOverlap(M1, M3));
-
- EXPECT_FALSE(Memory::releaseMappedMemory(M1));
- EXPECT_FALSE(Memory::releaseMappedMemory(M3));
- EXPECT_FALSE(Memory::releaseMappedMemory(M2));
-}
-
-TEST_P(MappedMemoryTest, DuplicateNear) {
- error_code EC;
- MemoryBlock Near((void*)(3*PageSize), 16);
- MemoryBlock M1 = Memory::allocateMappedMemory(16, &Near, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M2 = Memory::allocateMappedMemory(64, &Near, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M3 = Memory::allocateMappedMemory(32, &Near, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
-
- EXPECT_NE((void*)0, M1.base());
- EXPECT_LE(16U, M1.size());
- EXPECT_NE((void*)0, M2.base());
- EXPECT_LE(64U, M2.size());
- EXPECT_NE((void*)0, M3.base());
- EXPECT_LE(32U, M3.size());
-
- EXPECT_FALSE(Memory::releaseMappedMemory(M1));
- EXPECT_FALSE(Memory::releaseMappedMemory(M3));
- EXPECT_FALSE(Memory::releaseMappedMemory(M2));
-}
-
-TEST_P(MappedMemoryTest, ZeroNear) {
- error_code EC;
- MemoryBlock Near(0, 0);
- MemoryBlock M1 = Memory::allocateMappedMemory(16, &Near, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M2 = Memory::allocateMappedMemory(64, &Near, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M3 = Memory::allocateMappedMemory(32, &Near, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
-
- EXPECT_NE((void*)0, M1.base());
- EXPECT_LE(16U, M1.size());
- EXPECT_NE((void*)0, M2.base());
- EXPECT_LE(64U, M2.size());
- EXPECT_NE((void*)0, M3.base());
- EXPECT_LE(32U, M3.size());
-
- EXPECT_FALSE(doesOverlap(M1, M2));
- EXPECT_FALSE(doesOverlap(M2, M3));
- EXPECT_FALSE(doesOverlap(M1, M3));
-
- EXPECT_FALSE(Memory::releaseMappedMemory(M1));
- EXPECT_FALSE(Memory::releaseMappedMemory(M3));
- EXPECT_FALSE(Memory::releaseMappedMemory(M2));
-}
-
-TEST_P(MappedMemoryTest, ZeroSizeNear) {
- error_code EC;
- MemoryBlock Near((void*)(4*PageSize), 0);
- MemoryBlock M1 = Memory::allocateMappedMemory(16, &Near, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M2 = Memory::allocateMappedMemory(64, &Near, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
- MemoryBlock M3 = Memory::allocateMappedMemory(32, &Near, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
-
- EXPECT_NE((void*)0, M1.base());
- EXPECT_LE(16U, M1.size());
- EXPECT_NE((void*)0, M2.base());
- EXPECT_LE(64U, M2.size());
- EXPECT_NE((void*)0, M3.base());
- EXPECT_LE(32U, M3.size());
-
- EXPECT_FALSE(doesOverlap(M1, M2));
- EXPECT_FALSE(doesOverlap(M2, M3));
- EXPECT_FALSE(doesOverlap(M1, M3));
-
- EXPECT_FALSE(Memory::releaseMappedMemory(M1));
- EXPECT_FALSE(Memory::releaseMappedMemory(M3));
- EXPECT_FALSE(Memory::releaseMappedMemory(M2));
-}
-
-TEST_P(MappedMemoryTest, UnalignedNear) {
- error_code EC;
- MemoryBlock Near((void*)(2*PageSize+5), 0);
- MemoryBlock M1 = Memory::allocateMappedMemory(15, &Near, Flags, EC);
- EXPECT_EQ(error_code::success(), EC);
-
- EXPECT_NE((void*)0, M1.base());
- EXPECT_LE(sizeof(int), M1.size());
-
- EXPECT_FALSE(Memory::releaseMappedMemory(M1));
-}
-
-// Note that Memory::MF_WRITE is not supported exclusively across
-// operating systems and architectures and can imply MF_READ|MF_WRITE
-unsigned MemoryFlags[] = {
- Memory::MF_READ,
- Memory::MF_WRITE,
- Memory::MF_READ|Memory::MF_WRITE,
- Memory::MF_EXEC,
- Memory::MF_READ|Memory::MF_EXEC,
- Memory::MF_READ|Memory::MF_WRITE|Memory::MF_EXEC
- };
-
-INSTANTIATE_TEST_CASE_P(AllocationTests,
- MappedMemoryTest,
- ::testing::ValuesIn(MemoryFlags));
-
-} // anonymous namespace
+//===- llvm/unittest/Support/AllocatorTest.cpp - BumpPtrAllocator tests ---===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/Memory.h"
+#include "llvm/Support/Process.h"
+#include "gtest/gtest.h"
+#include <cstdlib>
+
+using namespace llvm;
+using namespace sys;
+
+namespace {
+
+class MappedMemoryTest : public ::testing::TestWithParam<unsigned> {
+public:
+ MappedMemoryTest() {
+ Flags = GetParam();
+ PageSize = sys::process::get_self()->page_size();
+ }
+
+protected:
+ // Adds RW flags to permit testing of the resulting memory
+ unsigned getTestableEquivalent(unsigned RequestedFlags) {
+ switch (RequestedFlags) {
+ case Memory::MF_READ:
+ case Memory::MF_WRITE:
+ case Memory::MF_READ|Memory::MF_WRITE:
+ return Memory::MF_READ|Memory::MF_WRITE;
+ case Memory::MF_READ|Memory::MF_EXEC:
+ case Memory::MF_READ|Memory::MF_WRITE|Memory::MF_EXEC:
+ case Memory::MF_EXEC:
+ return Memory::MF_READ|Memory::MF_WRITE|Memory::MF_EXEC;
+ }
+ // Default in case values are added to the enum, as required by some compilers
+ return Memory::MF_READ|Memory::MF_WRITE;
+ }
+
+ // Returns true if the memory blocks overlap
+ bool doesOverlap(MemoryBlock M1, MemoryBlock M2) {
+ if (M1.base() == M2.base())
+ return true;
+
+ if (M1.base() > M2.base())
+ return (unsigned char *)M2.base() + M2.size() > M1.base();
+
+ return (unsigned char *)M1.base() + M1.size() > M2.base();
+ }
+
+ unsigned Flags;
+ size_t PageSize;
+};
+
+TEST_P(MappedMemoryTest, AllocAndRelease) {
+ error_code EC;
+ MemoryBlock M1 = Memory::allocateMappedMemory(sizeof(int), 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+
+ EXPECT_NE((void*)0, M1.base());
+ EXPECT_LE(sizeof(int), M1.size());
+
+ EXPECT_FALSE(Memory::releaseMappedMemory(M1));
+}
+
+TEST_P(MappedMemoryTest, MultipleAllocAndRelease) {
+ error_code EC;
+ MemoryBlock M1 = Memory::allocateMappedMemory(16, 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M2 = Memory::allocateMappedMemory(64, 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M3 = Memory::allocateMappedMemory(32, 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+
+ EXPECT_NE((void*)0, M1.base());
+ EXPECT_LE(16U, M1.size());
+ EXPECT_NE((void*)0, M2.base());
+ EXPECT_LE(64U, M2.size());
+ EXPECT_NE((void*)0, M3.base());
+ EXPECT_LE(32U, M3.size());
+
+ EXPECT_FALSE(doesOverlap(M1, M2));
+ EXPECT_FALSE(doesOverlap(M2, M3));
+ EXPECT_FALSE(doesOverlap(M1, M3));
+
+ EXPECT_FALSE(Memory::releaseMappedMemory(M1));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M3));
+ MemoryBlock M4 = Memory::allocateMappedMemory(16, 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ EXPECT_NE((void*)0, M4.base());
+ EXPECT_LE(16U, M4.size());
+ EXPECT_FALSE(Memory::releaseMappedMemory(M4));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M2));
+}
+
+TEST_P(MappedMemoryTest, BasicWrite) {
+ // This test applies only to readable and writeable combinations
+ if (Flags &&
+ !((Flags & Memory::MF_READ) && (Flags & Memory::MF_WRITE)))
+ return;
+
+ error_code EC;
+ MemoryBlock M1 = Memory::allocateMappedMemory(sizeof(int), 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+
+ EXPECT_NE((void*)0, M1.base());
+ EXPECT_LE(sizeof(int), M1.size());
+
+ int *a = (int*)M1.base();
+ *a = 1;
+ EXPECT_EQ(1, *a);
+
+ EXPECT_FALSE(Memory::releaseMappedMemory(M1));
+}
+
+TEST_P(MappedMemoryTest, MultipleWrite) {
+ // This test applies only to readable and writeable combinations
+ if (Flags &&
+ !((Flags & Memory::MF_READ) && (Flags & Memory::MF_WRITE)))
+ return;
+ error_code EC;
+ MemoryBlock M1 = Memory::allocateMappedMemory(sizeof(int), 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M2 = Memory::allocateMappedMemory(8 * sizeof(int), 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M3 = Memory::allocateMappedMemory(4 * sizeof(int), 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+
+ EXPECT_FALSE(doesOverlap(M1, M2));
+ EXPECT_FALSE(doesOverlap(M2, M3));
+ EXPECT_FALSE(doesOverlap(M1, M3));
+
+ EXPECT_NE((void*)0, M1.base());
+ EXPECT_LE(1U * sizeof(int), M1.size());
+ EXPECT_NE((void*)0, M2.base());
+ EXPECT_LE(8U * sizeof(int), M2.size());
+ EXPECT_NE((void*)0, M3.base());
+ EXPECT_LE(4U * sizeof(int), M3.size());
+
+ int *x = (int*)M1.base();
+ *x = 1;
+
+ int *y = (int*)M2.base();
+ for (int i = 0; i < 8; i++) {
+ y[i] = i;
+ }
+
+ int *z = (int*)M3.base();
+ *z = 42;
+
+ EXPECT_EQ(1, *x);
+ EXPECT_EQ(7, y[7]);
+ EXPECT_EQ(42, *z);
+
+ EXPECT_FALSE(Memory::releaseMappedMemory(M1));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M3));
+
+ MemoryBlock M4 = Memory::allocateMappedMemory(64 * sizeof(int), 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ EXPECT_NE((void*)0, M4.base());
+ EXPECT_LE(64U * sizeof(int), M4.size());
+ x = (int*)M4.base();
+ *x = 4;
+ EXPECT_EQ(4, *x);
+ EXPECT_FALSE(Memory::releaseMappedMemory(M4));
+
+ // Verify that M2 remains unaffected by other activity
+ for (int i = 0; i < 8; i++) {
+ EXPECT_EQ(i, y[i]);
+ }
+ EXPECT_FALSE(Memory::releaseMappedMemory(M2));
+}
+
+TEST_P(MappedMemoryTest, EnabledWrite) {
+ error_code EC;
+ MemoryBlock M1 = Memory::allocateMappedMemory(2 * sizeof(int), 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M2 = Memory::allocateMappedMemory(8 * sizeof(int), 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M3 = Memory::allocateMappedMemory(4 * sizeof(int), 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+
+ EXPECT_NE((void*)0, M1.base());
+ EXPECT_LE(2U * sizeof(int), M1.size());
+ EXPECT_NE((void*)0, M2.base());
+ EXPECT_LE(8U * sizeof(int), M2.size());
+ EXPECT_NE((void*)0, M3.base());
+ EXPECT_LE(4U * sizeof(int), M3.size());
+
+ EXPECT_FALSE(Memory::protectMappedMemory(M1, getTestableEquivalent(Flags)));
+ EXPECT_FALSE(Memory::protectMappedMemory(M2, getTestableEquivalent(Flags)));
+ EXPECT_FALSE(Memory::protectMappedMemory(M3, getTestableEquivalent(Flags)));
+
+ EXPECT_FALSE(doesOverlap(M1, M2));
+ EXPECT_FALSE(doesOverlap(M2, M3));
+ EXPECT_FALSE(doesOverlap(M1, M3));
+
+ int *x = (int*)M1.base();
+ *x = 1;
+ int *y = (int*)M2.base();
+ for (unsigned int i = 0; i < 8; i++) {
+ y[i] = i;
+ }
+ int *z = (int*)M3.base();
+ *z = 42;
+
+ EXPECT_EQ(1, *x);
+ EXPECT_EQ(7, y[7]);
+ EXPECT_EQ(42, *z);
+
+ EXPECT_FALSE(Memory::releaseMappedMemory(M1));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M3));
+ EXPECT_EQ(6, y[6]);
+
+ MemoryBlock M4 = Memory::allocateMappedMemory(16, 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ EXPECT_NE((void*)0, M4.base());
+ EXPECT_LE(16U, M4.size());
+ EXPECT_EQ(error_code::success(), Memory::protectMappedMemory(M4, getTestableEquivalent(Flags)));
+ x = (int*)M4.base();
+ *x = 4;
+ EXPECT_EQ(4, *x);
+ EXPECT_FALSE(Memory::releaseMappedMemory(M4));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M2));
+}
+
+TEST_P(MappedMemoryTest, SuccessiveNear) {
+ error_code EC;
+ MemoryBlock M1 = Memory::allocateMappedMemory(16, 0, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M2 = Memory::allocateMappedMemory(64, &M1, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M3 = Memory::allocateMappedMemory(32, &M2, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+
+ EXPECT_NE((void*)0, M1.base());
+ EXPECT_LE(16U, M1.size());
+ EXPECT_NE((void*)0, M2.base());
+ EXPECT_LE(64U, M2.size());
+ EXPECT_NE((void*)0, M3.base());
+ EXPECT_LE(32U, M3.size());
+
+ EXPECT_FALSE(doesOverlap(M1, M2));
+ EXPECT_FALSE(doesOverlap(M2, M3));
+ EXPECT_FALSE(doesOverlap(M1, M3));
+
+ EXPECT_FALSE(Memory::releaseMappedMemory(M1));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M3));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M2));
+}
+
+TEST_P(MappedMemoryTest, DuplicateNear) {
+ error_code EC;
+ MemoryBlock Near((void*)(3*PageSize), 16);
+ MemoryBlock M1 = Memory::allocateMappedMemory(16, &Near, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M2 = Memory::allocateMappedMemory(64, &Near, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M3 = Memory::allocateMappedMemory(32, &Near, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+
+ EXPECT_NE((void*)0, M1.base());
+ EXPECT_LE(16U, M1.size());
+ EXPECT_NE((void*)0, M2.base());
+ EXPECT_LE(64U, M2.size());
+ EXPECT_NE((void*)0, M3.base());
+ EXPECT_LE(32U, M3.size());
+
+ EXPECT_FALSE(Memory::releaseMappedMemory(M1));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M3));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M2));
+}
+
+TEST_P(MappedMemoryTest, ZeroNear) {
+ error_code EC;
+ MemoryBlock Near(0, 0);
+ MemoryBlock M1 = Memory::allocateMappedMemory(16, &Near, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M2 = Memory::allocateMappedMemory(64, &Near, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M3 = Memory::allocateMappedMemory(32, &Near, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+
+ EXPECT_NE((void*)0, M1.base());
+ EXPECT_LE(16U, M1.size());
+ EXPECT_NE((void*)0, M2.base());
+ EXPECT_LE(64U, M2.size());
+ EXPECT_NE((void*)0, M3.base());
+ EXPECT_LE(32U, M3.size());
+
+ EXPECT_FALSE(doesOverlap(M1, M2));
+ EXPECT_FALSE(doesOverlap(M2, M3));
+ EXPECT_FALSE(doesOverlap(M1, M3));
+
+ EXPECT_FALSE(Memory::releaseMappedMemory(M1));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M3));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M2));
+}
+
+TEST_P(MappedMemoryTest, ZeroSizeNear) {
+ error_code EC;
+ MemoryBlock Near((void*)(4*PageSize), 0);
+ MemoryBlock M1 = Memory::allocateMappedMemory(16, &Near, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M2 = Memory::allocateMappedMemory(64, &Near, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+ MemoryBlock M3 = Memory::allocateMappedMemory(32, &Near, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+
+ EXPECT_NE((void*)0, M1.base());
+ EXPECT_LE(16U, M1.size());
+ EXPECT_NE((void*)0, M2.base());
+ EXPECT_LE(64U, M2.size());
+ EXPECT_NE((void*)0, M3.base());
+ EXPECT_LE(32U, M3.size());
+
+ EXPECT_FALSE(doesOverlap(M1, M2));
+ EXPECT_FALSE(doesOverlap(M2, M3));
+ EXPECT_FALSE(doesOverlap(M1, M3));
+
+ EXPECT_FALSE(Memory::releaseMappedMemory(M1));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M3));
+ EXPECT_FALSE(Memory::releaseMappedMemory(M2));
+}
+
+TEST_P(MappedMemoryTest, UnalignedNear) {
+ error_code EC;
+ MemoryBlock Near((void*)(2*PageSize+5), 0);
+ MemoryBlock M1 = Memory::allocateMappedMemory(15, &Near, Flags, EC);
+ EXPECT_EQ(error_code::success(), EC);
+
+ EXPECT_NE((void*)0, M1.base());
+ EXPECT_LE(sizeof(int), M1.size());
+
+ EXPECT_FALSE(Memory::releaseMappedMemory(M1));
+}
+
+// Note that Memory::MF_WRITE is not supported exclusively across
+// operating systems and architectures and can imply MF_READ|MF_WRITE
+unsigned MemoryFlags[] = {
+ Memory::MF_READ,
+ Memory::MF_WRITE,
+ Memory::MF_READ|Memory::MF_WRITE,
+ Memory::MF_EXEC,
+ Memory::MF_READ|Memory::MF_EXEC,
+ Memory::MF_READ|Memory::MF_WRITE|Memory::MF_EXEC
+ };
+
+INSTANTIATE_TEST_CASE_P(AllocationTests,
+ MappedMemoryTest,
+ ::testing::ValuesIn(MemoryFlags));
+
+} // anonymous namespace
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 16:28:03 +0000