[apple/libpthread.git] / tests / main_stack.c

#include <stdlib.h>
#include <pthread.h>
#include "darwintest_defaults.h"
#include <machine/vmparam.h>

T_DECL(main_stack, "tests the reported values for the main thread stack",
		T_META_CHECK_LEAKS(NO), T_META_ALL_VALID_ARCHS(YES)){
	const uintptr_t stackaddr = (uintptr_t)pthread_get_stackaddr_np(pthread_self());
	const size_t stacksize = pthread_get_stacksize_np(pthread_self());
	T_LOG("stack: %zx -> %zx (+%zx)", stackaddr - stacksize, stackaddr, stacksize);
	T_EXPECT_LT((uintptr_t)__builtin_frame_address(0), stackaddr, NULL);
	T_EXPECT_GT((uintptr_t)__builtin_frame_address(0), stackaddr - stacksize, NULL);

	struct rlimit lim;
	T_ASSERT_POSIX_SUCCESS(getrlimit(RLIMIT_STACK, &lim), NULL);
	T_EXPECT_EQ((size_t)lim.rlim_cur, pthread_get_stacksize_np(pthread_self()), "reported rlimit should match stacksize");

	lim.rlim_cur = lim.rlim_cur / 8;
	T_ASSERT_POSIX_SUCCESS(setrlimit(RLIMIT_STACK, &lim), NULL);

	T_EXPECTFAIL;
	T_EXPECT_EQ((size_t)lim.rlim_cur, pthread_get_stacksize_np(pthread_self()), "new rlimit should should match stacksize");
}
Commit	Line	Data
2546420a A	1	#include <stdlib.h>
2546420a A	2	#include <pthread.h>
a0619f9c	3	#include "darwintest_defaults.h"
2546420a A	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	}