From 33237fe83d553dff111915024c9670adc3f06048 Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Date: Thu, 23 Mar 2023 10:13:51 -0300
Subject: Remove --enable-tunables configure option

And make always supported.  The configure option was added on glibc 2.25
and some features require it (such as hwcap mask, huge pages support, and
lock elisition tuning).  It also simplifies the build permutations.

Changes from v1:
 * Remove glibc.rtld.dynamic_sort changes, it is orthogonal and needs
   more discussion.
 * Cleanup more code.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
---
 sysdeps/nptl/dl-tls_init_tp.c     | 2 --
 sysdeps/nptl/pthreadP.h           | 4 ----
 sysdeps/nptl/pthread_early_init.h | 2 --
 sysdeps/nptl/pthread_mutex_conf.h | 8 --------
 4 files changed, 16 deletions(-)

(limited to 'sysdeps/nptl')

diff --git a/sysdeps/nptl/dl-tls_init_tp.c b/sysdeps/nptl/dl-tls_init_tp.c
index 0db0349..50dc778 100644
--- a/sysdeps/nptl/dl-tls_init_tp.c
+++ b/sysdeps/nptl/dl-tls_init_tp.c
@@ -102,9 +102,7 @@ __tls_init_tp (void)
 
   {
     bool do_rseq = true;
-#if HAVE_TUNABLES
     do_rseq = TUNABLE_GET (rseq, int, NULL);
-#endif
     if (rseq_register_current_thread (pd, do_rseq))
       {
         /* We need a writable view of the variables.  They are in
diff --git a/sysdeps/nptl/pthreadP.h b/sysdeps/nptl/pthreadP.h
index 536b75b..54f9198 100644
--- a/sysdeps/nptl/pthreadP.h
+++ b/sysdeps/nptl/pthreadP.h
@@ -45,11 +45,7 @@
 
 static inline short max_adaptive_count (void)
 {
-#if HAVE_TUNABLES
   return __mutex_aconf.spin_count;
-#else
-  return DEFAULT_ADAPTIVE_COUNT;
-#endif
 }
 
 
diff --git a/sysdeps/nptl/pthread_early_init.h b/sysdeps/nptl/pthread_early_init.h
index 39255d9..f1a3b65 100644
--- a/sysdeps/nptl/pthread_early_init.h
+++ b/sysdeps/nptl/pthread_early_init.h
@@ -53,9 +53,7 @@ __pthread_early_init (void)
   __default_pthread_attr.internal.stacksize = limit.rlim_cur;
   __default_pthread_attr.internal.guardsize = GLRO (dl_pagesize);
 
-#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
index 6d4b6ad..8151baf 100644
--- a/sysdeps/nptl/pthread_mutex_conf.h
+++ b/sysdeps/nptl/pthread_mutex_conf.h
@@ -20,7 +20,6 @@
 
 #include <adaptive_spin_count.h>
 
-#if HAVE_TUNABLES
 struct mutex_config
 {
   int spin_count;
@@ -30,12 +29,5 @@ 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
-- 
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