nptl: Move pthread_yield into libc, as a compatibility symbol

And deprecate it in <pthread.h>, redirecting it to sched_yield
for the time being.

The symbol was moved using scripts/move-symbol-to-libc.py.

No GLIBC_2.34 symbol version is added because of the compatibility
symbol status.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>

62 files changed, 39 insertions, 33 deletions

diff --git a/sysdeps/nptl/pthread.h b/sysdeps/nptl/pthread.h
index af0c156c89..22e037dcb4 100644
--- a/sysdeps/nptl/pthread.h
+++ b/sysdeps/nptl/pthread.h
@@ -454,11 +454,14 @@ extern int pthread_setconcurrency (int __level) __THROW;
 #endif
 
 #ifdef __USE_GNU
-/* Yield the processor to another thread or process.
-   This function is similar to the POSIX `sched_yield' function but
-   might be differently implemented in the case of a m-on-n thread
-   implementation.  */
 extern int pthread_yield (void) __THROW;
+# ifdef __REDIRECT_NTH
+extern int __REDIRECT_NTH (pthread_yield, (void), sched_yield)
+  __attribute_deprecated_msg__ ("\
+pthread_yield is deprecated, use sched_yield instead");
+# else
+#  define pthread_yield sched_yield
+# endif
 
 
 /* Limit specified thread TH to run only on the processors represented
diff --git a/sysdeps/unix/sysv/linux/aarch64/libc.abilist b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
index ad9f34494f..aad440cc6a 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
@@ -1530,6 +1530,7 @@ GLIBC_2.17 pthread_spin_init F
 GLIBC_2.17 pthread_spin_lock F
 GLIBC_2.17 pthread_spin_trylock F
 GLIBC_2.17 pthread_spin_unlock F
+GLIBC_2.17 pthread_yield F
 GLIBC_2.17 ptrace F
 GLIBC_2.17 ptsname F
 GLIBC_2.17 ptsname_r F
diff --git a/sysdeps/unix/sysv/linux/aarch64/libpthread.abilist b/sysdeps/unix/sysv/linux/aarch64/libpthread.abilist
index 433b97f293..c1f11e12df 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libpthread.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libpthread.abilist
@@ -40,7 +40,6 @@ GLIBC_2.17 pthread_sigqueue F
 GLIBC_2.17 pthread_testcancel F
 GLIBC_2.17 pthread_timedjoin_np F
 GLIBC_2.17 pthread_tryjoin_np F
-GLIBC_2.17 pthread_yield F
 GLIBC_2.17 sem_close F
 GLIBC_2.17 sem_destroy F
 GLIBC_2.17 sem_getvalue F
diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist
index 1a97584f0d..e0deca069c 100644
--- a/sysdeps/unix/sysv/linux/alpha/libc.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist
@@ -2004,6 +2004,7 @@ GLIBC_2.2 pthread_spin_init F
 GLIBC_2.2 pthread_spin_lock F
 GLIBC_2.2 pthread_spin_trylock F
 GLIBC_2.2 pthread_spin_unlock F
+GLIBC_2.2 pthread_yield F
 GLIBC_2.2 putwc F
 GLIBC_2.2 putwc_unlocked F
 GLIBC_2.2 putwchar F
diff --git a/sysdeps/unix/sysv/linux/alpha/libpthread.abilist b/sysdeps/unix/sysv/linux/alpha/libpthread.abilist
index e46d8b6b61..5eae00fd6b 100644
--- a/sysdeps/unix/sysv/linux/alpha/libpthread.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libpthread.abilist
@@ -49,7 +49,6 @@ GLIBC_2.2 pthread_barrierattr_destroy F
 GLIBC_2.2 pthread_barrierattr_init F
 GLIBC_2.2 pthread_barrierattr_setpshared F
 GLIBC_2.2 pthread_getcpuclockid F
-GLIBC_2.2 pthread_yield F
 GLIBC_2.2 sem_timedwait F
 GLIBC_2.2.3 __libpthread_version_placeholder F
 GLIBC_2.2.6 __libpthread_version_placeholder F
diff --git a/sysdeps/unix/sysv/linux/arc/libc.abilist b/sysdeps/unix/sysv/linux/arc/libc.abilist
index fb46270222..ac0f574207 100644
--- a/sysdeps/unix/sysv/linux/arc/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arc/libc.abilist
@@ -1473,6 +1473,7 @@ GLIBC_2.32 pthread_spin_init F
 GLIBC_2.32 pthread_spin_lock F
 GLIBC_2.32 pthread_spin_trylock F
 GLIBC_2.32 pthread_spin_unlock F
+GLIBC_2.32 pthread_yield F
 GLIBC_2.32 ptrace F
 GLIBC_2.32 ptsname F
 GLIBC_2.32 ptsname_r F
diff --git a/sysdeps/unix/sysv/linux/arc/libpthread.abilist b/sysdeps/unix/sysv/linux/arc/libpthread.abilist
index e84525838b..8d12b93ff1 100644
--- a/sysdeps/unix/sysv/linux/arc/libpthread.abilist
+++ b/sysdeps/unix/sysv/linux/arc/libpthread.abilist
@@ -43,7 +43,6 @@ GLIBC_2.32 pthread_sigqueue F
 GLIBC_2.32 pthread_testcancel F
 GLIBC_2.32 pthread_timedjoin_np F
 GLIBC_2.32 pthread_tryjoin_np F
-GLIBC_2.32 pthread_yield F
 GLIBC_2.32 sem_clockwait F
 GLIBC_2.32 sem_close F
 GLIBC_2.32 sem_destroy F
diff --git a/sysdeps/unix/sysv/linux/arm/be/libc.abilist b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
index 7eb46e69c2..c77241c227 100644
--- a/sysdeps/unix/sysv/linux/arm/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
@@ -1718,6 +1718,7 @@ GLIBC_2.4 pthread_spin_init F
 GLIBC_2.4 pthread_spin_lock F
 GLIBC_2.4 pthread_spin_trylock F
 GLIBC_2.4 pthread_spin_unlock F
+GLIBC_2.4 pthread_yield F
 GLIBC_2.4 ptrace F
 GLIBC_2.4 ptsname F
 GLIBC_2.4 ptsname_r F
diff --git a/sysdeps/unix/sysv/linux/arm/be/libpthread.abilist b/sysdeps/unix/sysv/linux/arm/be/libpthread.abilist
index 2a670355e1..e7907d89b8 100644
--- a/sysdeps/unix/sysv/linux/arm/be/libpthread.abilist
+++ b/sysdeps/unix/sysv/linux/arm/be/libpthread.abilist
@@ -48,7 +48,6 @@ GLIBC_2.4 pthread_setschedprio F
 GLIBC_2.4 pthread_testcancel F
 GLIBC_2.4 pthread_timedjoin_np F
 GLIBC_2.4 pthread_tryjoin_np F
-GLIBC_2.4 pthread_yield F
 GLIBC_2.4 sem_close F
 GLIBC_2.4 sem_destroy F
 GLIBC_2.4 sem_getvalue F
diff --git a/sysdeps/unix/sysv/linux/arm/le/libc.abilist b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
index 5334659a99..9e02ac94d8 100644
--- a/sysdeps/unix/sysv/linux/arm/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
@@ -1715,6 +1715,7 @@ GLIBC_2.4 pthread_spin_init F
 GLIBC_2.4 pthread_spin_lock F
 GLIBC_2.4 pthread_spin_trylock F
 GLIBC_2.4 pthread_spin_unlock F
+GLIBC_2.4 pthread_yield F
 GLIBC_2.4 ptrace F
 GLIBC_2.4 ptsname F
 GLIBC_2.4 ptsname_r F
diff --git a/sysdeps/unix/sysv/linux/arm/le/libpthread.abilist b/sysdeps/unix/sysv/linux/arm/le/libpthread.abilist
index 2a670355e1..e7907d89b8 100644
--- a/sysdeps/unix/sysv/linux/arm/le/libpthread.abilist
+++ b/sysdeps/unix/sysv/linux/arm/le/libpthread.abilist
@@ -48,7 +48,6 @@ GLIBC_2.4 pthread_setschedprio F
 GLIBC