362   size_t pagesize = static_cast<size_t>(sysconf(_SC_PAGE_SIZE));  in RunSingleBufferOverreadTest()  local
364   ASSERT_TRUE(posix_memalign(reinterpret_cast<void**>(&memory), pagesize,  in RunSingleBufferOverreadTest()
365                              2*pagesize) == 0);  in RunSingleBufferOverreadTest()
366   memset(memory, 0x23, 2*pagesize);  in RunSingleBufferOverreadTest()
369   ASSERT_TRUE(MprotectHeap(&memory[pagesize], pagesize, PROT_NONE) == 0);  in RunSingleBufferOverreadTest()
371   for (size_t i = 0; i < pagesize; i++) {  in RunSingleBufferOverreadTest()
372     uint8_t* buf = &memory[pagesize-i];  in RunSingleBufferOverreadTest()
376   ASSERT_TRUE(MprotectHeap(&memory[pagesize], pagesize, PROT_READ | PROT_WRITE) == 0);  in RunSingleBufferOverreadTest()
383   size_t pagesize = static_cast<size_t>(sysconf(_SC_PAGE_SIZE));  in RunSrcDstBufferOverreadTest()  local
385   ASSERT_TRUE(posix_memalign(reinterpret_cast<void**>(&memory), pagesize,  in RunSrcDstBufferOverreadTest()
386                              2*pagesize) == 0);  in RunSrcDstBufferOverreadTest()
387   memset(memory, 0x23, 2*pagesize);  in RunSrcDstBufferOverreadTest()
390   ASSERT_TRUE(MprotectHeap(&memory[pagesize], pagesize, PROT_NONE) == 0);  in RunSrcDstBufferOverreadTest()
392   uint8_t* dst_buffer = new uint8_t[2*pagesize];  in RunSrcDstBufferOverreadTest()
396     for (size_t j = 0; j < pagesize; j++) {  in RunSrcDstBufferOverreadTest()
397       uint8_t* src = &memory[pagesize-j];  in RunSrcDstBufferOverreadTest()
402   ASSERT_TRUE(MprotectHeap(&memory[pagesize], pagesize, PROT_READ | PROT_WRITE) == 0);  in RunSrcDstBufferOverreadTest()
413   size_t pagesize = static_cast<size_t>(sysconf(_SC_PAGE_SIZE));  in RunCmpBufferOverreadTest()  local
415   ASSERT_TRUE(posix_memalign(reinterpret_cast<void**>(&memory1), pagesize,  in RunCmpBufferOverreadTest()
416                              2*pagesize) == 0);  in RunCmpBufferOverreadTest()
417   memset(memory1, 0x23, 2*pagesize);  in RunCmpBufferOverreadTest()
420   ASSERT_TRUE(MprotectHeap(&memory1[pagesize], pagesize, PROT_NONE) == 0);  in RunCmpBufferOverreadTest()
423   ASSERT_TRUE(posix_memalign(reinterpret_cast<void**>(&memory2), pagesize,  in RunCmpBufferOverreadTest()
424                              2*pagesize) == 0);  in RunCmpBufferOverreadTest()
425   memset(memory2, 0x23, 2*pagesize);  in RunCmpBufferOverreadTest()
428   ASSERT_TRUE(MprotectHeap(&memory2[pagesize], pagesize, PROT_NONE) == 0);  in RunCmpBufferOverreadTest()
430   for (size_t i = 0; i < pagesize; i++) {  in RunCmpBufferOverreadTest()
431     uint8_t* buf1 = &memory1[pagesize-i];  in RunCmpBufferOverreadTest()
432     uint8_t* buf2 = &memory2[pagesize-i];  in RunCmpBufferOverreadTest()
439   if (pagesize > MISCMP_MAX_LENGTH) {  in RunCmpBufferOverreadTest()
442     miscmp_len = pagesize;  in RunCmpBufferOverreadTest()
445     uint8_t* buf1 = &memory1[pagesize-i];  in RunCmpBufferOverreadTest()
450       uint8_t* buf2 = &memory2[pagesize-j];  in RunCmpBufferOverreadTest()
456   ASSERT_TRUE(MprotectHeap(&memory1[pagesize], pagesize, PROT_READ | PROT_WRITE) == 0);  in RunCmpBufferOverreadTest()
457   ASSERT_TRUE(MprotectHeap(&memory2[pagesize], pagesize, PROT_READ | PROT_WRITE) == 0);  in RunCmpBufferOverreadTest()