htl: move pthread_setcancelstate into libc.

sysdeps/pthread/sem_open.c: call pthread_setcancelstate directely
since forward declaration is gone on hurd too
Message-ID: <20250201080202.494671-1-gfleury@disroot.org>

htl/Makefile

@@ -50,7 +50,6 @@ libpthread-routines := \
   pt-join \
   pt-spin-inlines \
   pt-cleanup \
-  pt-setcancelstate \
   pt-testcancel \
   pt-cancel \
   pt-mutex-transfer-np \
@@ -203,6 +202,7 @@ routines := \
   pt-nthreads \
   pt-pthread_self \
   pt-self pt-equal \
+  pt-setcancelstate \
   pt-setcanceltype \
   pt-setschedparam \
   pt-sigmask \

htl/Versions

@@ -56,6 +56,7 @@ libc {
     pthread_mutexattr_setprotocol;
     pthread_mutexattr_setpshared;
     pthread_mutexattr_settype;
+    pthread_setcancelstate;
     pthread_setcanceltype;
     pthread_sigmask;
   }
@@ -146,6 +147,7 @@ libc {
     __pthread_attr_setstacksize;
     __pthread_attr_setstackaddr;
     __pthread_attr_setstack;
+    __pthread_setcancelstate;
     __pthread_cond_broadcast;
     __pthread_cond_destroy;
     __pthread_cond_init;
@@ -232,7 +234,6 @@ libpthread {
     pthread_rwlockattr_destroy; pthread_rwlockattr_getpshared;
     pthread_rwlockattr_init; pthread_rwlockattr_setpshared;
 
-    pthread_setcancelstate;
     pthread_setconcurrency;
     pthread_setschedprio; pthread_setspecific;
 

htl/forward.c

@@ -58,9 +58,5 @@ FORWARD_NORETURN (__pthread_exit, void, (void *retval), (retval),
 		  exit (EXIT_SUCCESS))
 strong_alias (__pthread_exit, pthread_exit);
 
-FORWARD (__pthread_setcancelstate, (int state, int *oldstate),
-	 (state, oldstate), 0)
-strong_alias (__pthread_setcancelstate, pthread_setcancelstate);
-
 FORWARD2 (__pthread_get_cleanup_stack, struct __pthread_cancelation_handler **,
 	  (void), (), return &__pthread_cleanup_stack);

htl/pt-initialize.c

@@ -28,7 +28,6 @@
 #if IS_IN (libpthread)
 static const struct pthread_functions pthread_functions = {
   .ptr___pthread_exit = __pthread_exit,
-  .ptr___pthread_setcancelstate = __pthread_setcancelstate,
   .ptr___pthread_get_cleanup_stack = __pthread_get_cleanup_stack,
   .ptr_pthread_once = __pthread_once,
   .ptr_pthread_rwlock_rdlock = __pthread_rwlock_rdlock,

htl/pt-setcancelstate.c

@@ -17,7 +17,7 @@
    <https://www.gnu.org/licenses/>.  */
 
 #include <pthread.h>
-
+#include <shlib-compat.h>
 #include <pt-internal.h>
 
 int
@@ -42,5 +42,9 @@ __pthread_setcancelstate (int state, int *oldstate)
 
   return 0;
 }
+libc_hidden_def (__pthread_setcancelstate)
+versioned_symbol (libc, __pthread_setcancelstate, pthread_setcancelstate, GLIBC_2_21);
 
-weak_alias (__pthread_setcancelstate, pthread_setcancelstate);
+#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_12, GLIBC_2_21)
+compat_symbol (libc, __pthread_setcancelstate, pthread_setcancelstate, GLIBC_2_12);
+#endif

sysdeps/htl/libc-lockP.h

@@ -75,7 +75,6 @@
 
 extern int __pthread_mutex_init (pthread_mutex_t *__mutex,
 				 const pthread_mutexattr_t *__mutex_attr);
-
 extern int __pthread_mutex_destroy (pthread_mutex_t *__mutex);
 libc_hidden_proto (__pthread_mutex_destroy)
 
@@ -113,6 +112,8 @@ extern int __pthread_atfork (void (*__prepare) (void),
 			     void (*__parent) (void),
 			     void (*__child) (void));
 
+extern int __pthread_setcancelstate (int state, int *oldstate);
+libc_hidden_proto (__pthread_setcancelstate)
 /* Make the pthread functions weak so that we can elide them from
    single-threaded processes.  */
 #if !defined(__NO_WEAK_PTHREAD_ALIASES) && !IS_IN (libpthread)
@@ -130,7 +131,6 @@ weak_extern (__pthread_getspecific)
 weak_extern (__pthread_once)
 weak_extern (__pthread_initialize)
 weak_extern (__pthread_atfork)
-weak_extern (__pthread_setcancelstate)
 # else
 #  pragma weak __pthread_rwlock_destroy
 #  pragma weak __pthread_rwlock_rdlock
@@ -144,7 +144,6 @@ weak_extern (__pthread_setcancelstate)
 #  pragma weak __pthread_once
 #  pragma weak __pthread_initialize
 #  pragma weak __pthread_atfork
-#  pragma weak __pthread_setcancelstate
 # endif
 #endif
 

sysdeps/htl/pthread-functions.h

@@ -22,7 +22,6 @@
 #include <pthread.h>
 
 void __pthread_exit (void *) __attribute__ ((__noreturn__));
-int __pthread_setcancelstate (int, int *);
 struct __pthread_cancelation_handler **__pthread_get_cleanup_stack (void);
 int __pthread_once (pthread_once_t *, void (*) (void));
 int __pthread_rwlock_rdlock (pthread_rwlock_t *);
@@ -42,7 +41,6 @@ int _cthreads_ftrylockfile (FILE *);
 struct pthread_functions
 {
   void (*ptr___pthread_exit) (void *) __attribute__ ((__noreturn__));
-  int (*ptr___pthread_setcancelstate) (int, int *);
   struct __pthread_cancelation_handler **(*ptr___pthread_get_cleanup_stack) (void);
   int (*ptr_pthread_once) (pthread_once_t *, void (*) (void));
   int (*ptr_pthread_rwlock_rdlock) (pthread_rwlock_t *);

sysdeps/htl/pthreadP.h

@@ -146,8 +146,6 @@ int __pthread_setspecific (pthread_key_t key, const void *value);
 int __pthread_key_delete (pthread_key_t key);
 int __pthread_once (pthread_once_t *once_control, void (*init_routine) (void));
 
-int __pthread_setcancelstate (int state, int *oldstate);
-
 int __pthread_getattr_np (pthread_t, pthread_attr_t *);
 int __pthread_attr_getstackaddr (const pthread_attr_t *__restrict __attr,
 				 void **__restrict __stackaddr);

sysdeps/mach/hurd/i386/libc.abilist

@@ -82,6 +82,7 @@ GLIBC_2.12 pthread_mutexattr_setprotocol F
 GLIBC_2.12 pthread_mutexattr_setpshared F
 GLIBC_2.12 pthread_mutexattr_settype F
 GLIBC_2.12 pthread_self F
+GLIBC_2.12 pthread_setcancelstate F
 GLIBC_2.12 pthread_setcanceltype F
 GLIBC_2.12 pthread_setschedparam F
 GLIBC_2.12 pthread_sigmask F

sysdeps/mach/hurd/i386/libpthread.abilist

@@ -56,7 +56,6 @@ GLIBC_2.12 pthread_rwlockattr_destroy F
 GLIBC_2.12 pthread_rwlockattr_getpshared F
 GLIBC_2.12 pthread_rwlockattr_init F
 GLIBC_2.12 pthread_rwlockattr_setpshared F
-GLIBC_2.12 pthread_setcancelstate F
 GLIBC_2.12 pthread_setconcurrency F
 GLIBC_2.12 pthread_setschedprio F
 GLIBC_2.12 pthread_setspecific F

sysdeps/mach/hurd/x86_64/libpthread.abilist

@@ -78,7 +78,6 @@ GLIBC_2.38 pthread_rwlockattr_destroy F
 GLIBC_2.38 pthread_rwlockattr_getpshared F
 GLIBC_2.38 pthread_rwlockattr_init F
 GLIBC_2.38 pthread_rwlockattr_setpshared F
-GLIBC_2.38 pthread_setcancelstate F
 GLIBC_2.38 pthread_setconcurrency F
 GLIBC_2.38 pthread_setschedprio F
 GLIBC_2.38 pthread_setspecific F

sysdeps/pthread/sem_open.c

@@ -26,6 +26,7 @@
 #include <futex-internal.h>
 #include <libc-lock.h>
 
+
 #if !PTHREAD_IN_LIBC
 /* The private names are not exported from libc.  */
 # define __link link
@@ -57,11 +58,7 @@ __sem_open (const char *name, int oflag, ...)
     }
 
   /* Disable asynchronous cancellation.  */
-#ifdef __libc_ptf_call
-  int state;
-  __libc_ptf_call (__pthread_setcancelstate,
-                   (PTHREAD_CANCEL_DISABLE, &state), 0);
-#endif
+  int state = __pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &state);
 
   /* If the semaphore object has to exist simply open it.  */
   if ((oflag & O_CREAT) == 0 || (oflag & O_EXCL) == 0)
@@ -214,9 +211,7 @@ __sem_open (const char *name, int oflag, ...)
     }
 
 out:
-#ifdef __libc_ptf_call
-  __libc_ptf_call (__pthread_setcancelstate, (state, NULL), 0);
-#endif
+  __pthread_setcancelstate (state, NULL);
 
   return result;
 }