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1 | #include <stdlib.h> | |
2 | #include <pthread.h> | |
3 | #include "darwintest_defaults.h" | |
4 | #include <machine/vmparam.h> | |
5 | ||
6 | T_DECL(main_stack, "tests the reported values for the main thread stack", | |
7 | T_META_CHECK_LEAKS(NO), T_META_ALL_VALID_ARCHS(YES)){ | |
8 | const uintptr_t stackaddr = (uintptr_t)pthread_get_stackaddr_np(pthread_self()); | |
9 | const size_t stacksize = pthread_get_stacksize_np(pthread_self()); | |
10 | T_LOG("stack: %zx -> %zx (+%zx)", stackaddr - stacksize, stackaddr, stacksize); | |
11 | T_EXPECT_LT((uintptr_t)__builtin_frame_address(0), stackaddr, NULL); | |
12 | T_EXPECT_GT((uintptr_t)__builtin_frame_address(0), stackaddr - stacksize, NULL); | |
13 | ||
14 | struct rlimit lim; | |
15 | T_ASSERT_POSIX_SUCCESS(getrlimit(RLIMIT_STACK, &lim), NULL); | |
16 | T_EXPECT_EQ((size_t)lim.rlim_cur, pthread_get_stacksize_np(pthread_self()), "reported rlimit should match stacksize"); | |
17 | ||
18 | lim.rlim_cur = lim.rlim_cur / 8; | |
19 | T_ASSERT_POSIX_SUCCESS(setrlimit(RLIMIT_STACK, &lim), NULL); | |
20 | ||
21 | T_EXPECTFAIL; | |
22 | T_EXPECT_EQ((size_t)lim.rlim_cur, pthread_get_stacksize_np(pthread_self()), "new rlimit should should match stacksize"); | |
23 | } |