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authorFlorian Weimer <fweimer@redhat.com>2021-04-21 19:49:51 +0200
committerFlorian Weimer <fweimer@redhat.com>2021-04-21 19:49:51 +0200
commiteda0c098ed31489ce21f15d775ed96c1f6b395ad (patch)
treeeb5216e67e16329272ae61039847cc172b67a5aa /sysdeps
parent1f3ed1e0c8ede2ec0aa8b5913de7abc6791c986f (diff)
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nptl: Move internal symbol __mutex_aconf into libc
This is in preparation of moving the mutex code into libc. __pthread_tunables_init is now called via __pthread_early_init. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/nptl/pthread_early_init.h33
-rw-r--r--sysdeps/nptl/pthread_mutex_conf.h41
-rw-r--r--sysdeps/pthread/pthread_mutex_conf.h28
3 files changed, 102 insertions, 0 deletions
diff --git a/sysdeps/nptl/pthread_early_init.h b/sysdeps/nptl/pthread_early_init.h
new file mode 100644
index 00000000000..2d15303dd9e
--- /dev/null
+++ b/sysdeps/nptl/pthread_early_init.h
@@ -0,0 +1,33 @@
+/* pthread initialization called from __libc_early_init. NPTL version.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _PTHREAD_EARLY_INIT_H
+#define _PTHREAD_EARLY_INIT_H 1
+
+#include <nptl/pthreadP.h>
+#include <pthread_mutex_conf.h>
+
+static inline void
+__pthread_early_init (void)
+{
+#if HAVE_TUNABLES
+ __pthread_tunables_init ();
+#endif
+}
+
+#endif /* _PTHREAD_EARLY_INIT_H */
diff --git a/sysdeps/nptl/pthread_mutex_conf.h b/sysdeps/nptl/pthread_mutex_conf.h
new file mode 100644
index 00000000000..9dba4bfa6da
--- /dev/null
+++ b/sysdeps/nptl/pthread_mutex_conf.h
@@ -0,0 +1,41 @@
+/* Pthread mutex tunable parameters.
+ Copyright (C) 2018-2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+#ifndef _PTHREAD_MUTEX_CONF_H
+#define _PTHREAD_MUTEX_CONF_H 1
+
+#include <adaptive_spin_count.h>
+
+#if HAVE_TUNABLES
+struct mutex_config
+{
+ int spin_count;
+};
+
+extern struct mutex_config __mutex_aconf;
+libc_hidden_proto (__mutex_aconf)
+
+extern void __pthread_tunables_init (void) attribute_hidden;
+#else
+static inline void
+__pthread_tunables_init (void)
+{
+ /* No tunables to initialize. */
+}
+#endif
+
+#endif
diff --git a/sysdeps/pthread/pthread_mutex_conf.h b/sysdeps/pthread/pthread_mutex_conf.h
new file mode 100644
index 00000000000..c999c980f71
--- /dev/null
+++ b/sysdeps/pthread/pthread_mutex_conf.h
@@ -0,0 +1,28 @@
+/* Pthread mutex tunable parameters. Generic version.
+ Copyright (C) 2018-2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _PTHREAD_MUTEX_CONF_H
+#define _PTHREAD_MUTEX_CONF_H 1
+
+static inline void
+__pthread_tunables_init (void)
+{
+ /* The generic version does not have any tunables to init. */
+}
+
+#endif