diff options
Diffstat (limited to 'unittests/Support')
-rw-r--r-- | unittests/Support/MemoryTest.cpp | 712 |
1 files changed, 356 insertions, 356 deletions
diff --git a/unittests/Support/MemoryTest.cpp b/unittests/Support/MemoryTest.cpp index 21cb27e..fcf9aeb 100644 --- a/unittests/Support/MemoryTest.cpp +++ b/unittests/Support/MemoryTest.cpp @@ -1,356 +1,356 @@ -//===- 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::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 |