ed61ae6cde
ASan does not really do anything interesting with mincore, but this test verifies that the function still works correctly. llvm-svn: 256207
35 lines
851 B
C++
35 lines
851 B
C++
// RUN: %clangxx_asan -std=c++11 -O0 %s -o %t && %run %t
|
|
|
|
#include <assert.h>
|
|
#include <unistd.h>
|
|
#include <sys/mman.h>
|
|
|
|
int main(void) {
|
|
unsigned char vec[20];
|
|
int res;
|
|
size_t PS = sysconf(_SC_PAGESIZE);
|
|
void *addr = mmap(nullptr, 20 * PS, PROT_READ | PROT_WRITE,
|
|
MAP_NORESERVE | MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
|
|
|
|
res = mincore(addr, 10 * PS, vec);
|
|
assert(res == 0);
|
|
for (int i = 0; i < 10; ++i)
|
|
assert((vec[i] & 1) == 0);
|
|
|
|
for (int i = 0; i < 5; ++i)
|
|
((char *)addr)[i * PS] = 1;
|
|
res = mincore(addr, 10 * PS, vec);
|
|
assert(res == 0);
|
|
for (int i = 0; i < 10; ++i)
|
|
assert((vec[i] & 1) == (i < 5));
|
|
|
|
for (int i = 5; i < 10; ++i)
|
|
((char *)addr)[i * PS] = 1;
|
|
res = mincore(addr, 10 * PS, vec);
|
|
assert(res == 0);
|
|
for (int i = 0; i < 10; ++i)
|
|
assert((vec[i] & 1) == 1);
|
|
|
|
return 0;
|
|
}
|