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| |
| #include "config_for_unittests.h" |
| |
| #include "base/logging.h" |
| #include "base/spinlock.h" |
| |
| #include "check_address-inl.h" |
| |
| #ifdef CHECK_ADDRESS_USES_SIGPROCMASK |
| #define CheckAddress CheckAddressPipes |
| #define FORCE_PIPES |
| #include "check_address-inl.h" |
| #undef CheckAddress |
| #undef FORCE_PIPES |
| #endif |
| |
| #include "tests/testutil.h" |
| |
| void* unreadable = mmap(0, getpagesize(), PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); |
| |
| static void TestFn(bool (*access_check_fn)(uintptr_t,int)) { |
| int pagesize = getpagesize(); |
| |
| CHECK(!access_check_fn(0, pagesize)); |
| CHECK(access_check_fn(reinterpret_cast<uintptr_t>(&pagesize), pagesize)); |
| |
| CHECK(!access_check_fn(reinterpret_cast<uintptr_t>(unreadable), pagesize)); |
| |
| for (int i = (256 << 10); i > 0; i--) { |
| // Lets ensure that pipes access method is forced eventually to drain pipe |
| CHECK(noopt(access_check_fn)(reinterpret_cast<uintptr_t>(&pagesize), pagesize)); |
| } |
| } |
| |
| int main() { |
| CHECK_NE(unreadable, MAP_FAILED); |
| |
| puts("Checking main access fn"); |
| TestFn([] (uintptr_t a, int ps) { |
| // note, this looks odd, but we do it so that each access_check_fn |
| // call above reads CheckAddress freshly. |
| return CheckAddress(a, ps); |
| }); |
| |
| #ifdef CHECK_ADDRESS_USES_SIGPROCMASK |
| puts("Checking pipes access fn"); |
| TestFn(CheckAddressPipes); |
| |
| CHECK_EQ(CheckAddress, CheckAccessSingleSyscall); |
| |
| puts("Checking two sigprocmask access fn"); |
| TestFn(CheckAccessTwoSyscalls); |
| #endif |
| |
| puts("PASS"); |
| } |