[v5,13/14] selftests/nolibc: add sbrk_0 to test current brk getting
Commit Message
From musl 0.9.14 (to the latest version 1.2.3), both sbrk() and brk()
have almost been disabled for they conflict with malloc, only sbrk(0) is
still permitted as a way to get the current brk, let's support such
case.
EXPECT_PTRNE() is used to expect sbrk() always successfully getting the
current brk.
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
tools/testing/selftests/nolibc/nolibc-test.c | 1 +
1 file changed, 1 insertion(+)
@@ -630,6 +630,7 @@ int run_syscall(int min, int max)
CASE_TEST(kill_0); EXPECT_SYSZR(1, kill(getpid(), 0)); break;
CASE_TEST(kill_CONT); EXPECT_SYSZR(1, kill(getpid(), 0)); break;
CASE_TEST(kill_BADPID); EXPECT_SYSER(1, kill(INT_MAX, 0), -1, ESRCH); break;
+ CASE_TEST(sbrk_0); EXPECT_PTRNE(1, sbrk(0), (void *)-1); break;
CASE_TEST(sbrk); if ((p1 = p2 = sbrk(4096)) != (void *)-1) p2 = sbrk(-4096); EXPECT_SYSZR(1, (p2 == (void *)-1) || p2 == p1); break;
CASE_TEST(brk); EXPECT_SYSZR(1, brk(sbrk(0))); break;
CASE_TEST(chdir_root); EXPECT_SYSZR(1, chdir("/")); break;