darling-xnu/tests/restrict_jit.c
2023-05-16 21:41:14 -07:00

34 lines
763 B
C

#include <stdlib.h>
#include <unistd.h>
#include <sys/sysctl.h>
#include <sys/mman.h>
#include <darwintest.h>
/*
* macOS only test. Try to map 2 different MAP_JIT regions. 2nd should fail.
*/
T_DECL(restrict_jit, "macOS restricted JIT entitlement test")
{
#if TARGET_OS_OSX
void *addr1;
void *addr2;
size_t size = 64 * 1024;
addr1 = mmap(NULL, size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANON | MAP_PRIVATE | MAP_JIT, -1, 0);
T_ASSERT_NE_PTR(addr1, MAP_FAILED, "First map MAP_JIT");
addr2 = mmap(NULL, size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANON | MAP_PRIVATE | MAP_JIT, -1, 0);
if (addr2 == MAP_FAILED) {
T_PASS("Only one MAP_JIT was allowed");
} else {
T_FAIL("Second MAP_JIT was allowed");
}
#else
T_SKIP("Not macOS");
#endif
}