GNU/Hurd's readlink system call is partly implemented in userspace, which
also allocates a buffer on the stack for the result, and thus needs one
more path.
---
stdlib/tst-canon-bz26341.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/stdlib/tst-canon-bz26341.c b/stdlib/tst-canon-bz26341.c
index 6d054596b5..0ddd9aed15 100644
--- a/stdlib/tst-canon-bz26341.c
+++ b/stdlib/tst-canon-bz26341.c
@@ -72,10 +72,11 @@ do_realpath (void *arg)
If realpath uses more than 2 * PATH_MAX plus some slack it will trigger
a stackoverflow. */
+ const size_t syscall_usage = 1 * PATH_MAX + 1024;
const size_t realpath_usage = 2 * PATH_MAX + 1024;
const size_t thread_usage = 1 * PATH_MAX + 1024;
size_t stack_size = support_small_thread_stack_size ()
- - realpath_usage - thread_usage;
+ - syscall_usage - realpath_usage - thread_usage;
char stack[stack_size];
char *resolved = stack + stack_size - thread_usage + 1024;
--
2.30.2
