diff mbox series

[v5,13/14] selftests/nolibc: add sbrk_0 to test current brk getting

Message ID f329ca3550f654501390d3fda46889367babfc60.1687957589.git.falcon@tinylab.org (mailing list archive)
State Accepted
Commit f193ecbff0effc06190036d92ec2fa582d9e6824
Headers show
Series tools/nolibc: add a new syscall helper | expand

Commit Message

Zhangjin Wu June 28, 2023, 1:46 p.m. UTC 
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(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index 34af802dadfd..80ab29e2887c 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -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;