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tst-clone3[-internal].c: Add _Atomic to silence Clang

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Add _Atomic to futex_wait argument and ctid in tst-clone3[-internal].c to
silence Clang error:

../sysdeps/unix/sysv/linux/tst-clone3-internal.c:93:3: error: address argument to atomic operation must be a pointer to _Atomic type ('pid_t *' (aka 'int *') invalid)
   93 |   wait_tid (&ctid, CTID_INIT_VAL);
      |   ^         ~~~~~
../sysdeps/unix/sysv/linux/tst-clone3-internal.c:51:21: note: expanded from macro 'wait_tid'
   51 |     while ((__tid = atomic_load_explicit (ctid_ptr,                     \
      |                     ^                     ~~~~~~~~
/usr/bin/../lib/clang/19/include/stdatomic.h:145:30: note: expanded from macro 'atomic_load_explicit'
  145 | #define atomic_load_explicit __c11_atomic_load
      |                              ^

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
This commit is contained in:
H.J. Lu 2024-12-17 05:54:19 +08:00
parent 560cfeb826
commit d4ee46b0cd
2 changed files with 4 additions and 4 deletions
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4
sysdeps/unix/sysv/linux/tst-clone3-internal.c
View file

@ -54,7 +54,7 @@ f (void *a)
} while (0) } while (0)
static inline int static inline int
futex_wait (int *futexp, int val) futex_wait (_Atomic int *futexp, int val)
{ {
#ifdef __NR_futex #ifdef __NR_futex
return syscall (__NR_futex, futexp, FUTEX_WAIT, val); return syscall (__NR_futex, futexp, FUTEX_WAIT, val);
@ -75,7 +75,7 @@ do_test (void)
/* Initialize with a known value. ctid is set to zero by the kernel after the /* Initialize with a known value. ctid is set to zero by the kernel after the
cloned thread has exited. */ cloned thread has exited. */
#define CTID_INIT_VAL 1 #define CTID_INIT_VAL 1
pid_t ctid = CTID_INIT_VAL; _Atomic pid_t ctid = CTID_INIT_VAL;
pid_t tid; pid_t tid;
struct clone_args clone_args = struct clone_args clone_args =

4
sysdeps/unix/sysv/linux/tst-clone3.c
View file

@ -54,7 +54,7 @@ f (void *a)
} while (0) } while (0)
static inline int static inline int
futex_wait (int *futexp, int val) futex_wait (_Atomic int *futexp, int val)
{ {
#ifdef __NR_futex #ifdef __NR_futex
return syscall (__NR_futex, futexp, FUTEX_WAIT, val); return syscall (__NR_futex, futexp, FUTEX_WAIT, val);
@ -75,7 +75,7 @@ do_test (void)
/* Initialize with a known value. ctid is set to zero by the kernel after the /* Initialize with a known value. ctid is set to zero by the kernel after the
cloned thread has exited. */ cloned thread has exited. */
#define CTID_INIT_VAL 1 #define CTID_INIT_VAL 1
pid_t ctid = CTID_INIT_VAL; _Atomic pid_t ctid = CTID_INIT_VAL;
pid_t tid; pid_t tid;
#if _STACK_GROWS_DOWN #if _STACK_GROWS_DOWN