17 files changed, 46 insertions, 45 deletions
diff --git a/NEWS b/NEWS
index 33f7ba5..6c062a5 100644
--- a/NEWS
+++ b/NEWS
@@ -13,7 +13,8 @@ Major new features:
 
 Deprecated and removed features, and other changes affecting compatibility:
 
-  [Add deprecations, removals and changes affecting compatibility here]
+* The glibc.tune tunable namespace has been renamed to glibc.cpu and the
+  tunable glibc.tune.cpu has been renamed to glibc.cpu.name.
 
 Changes to build and runtime requirements:
 
diff --git a/elf/dl-hwcaps.c b/elf/dl-hwcaps.c
index 23482a8..ecf00b4 100644
--- a/elf/dl-hwcaps.c
+++ b/elf/dl-hwcaps.c
@@ -140,7 +140,7 @@ _dl_important_hwcaps (const char *platform, size_t platform_len, size_t *sz,
 	 string and bit like you can ignore an OS-supplied HWCAP bit.  */
       hwcap_mask |= (uint64_t) mask << _DL_FIRST_EXTRA;
 #if HAVE_TUNABLES
-      TUNABLE_SET (glibc, tune, hwcap_mask, uint64_t, hwcap_mask);
+      TUNABLE_SET (glibc, cpu, hwcap_mask, uint64_t, hwcap_mask);
 #else
       GLRO(dl_hwcap_mask) = hwcap_mask;
 #endif
diff --git a/elf/dl-hwcaps.h b/elf/dl-hwcaps.h
index 17f0da4..d69ee11 100644
--- a/elf/dl-hwcaps.h
+++ b/elf/dl-hwcaps.h
@@ -19,7 +19,7 @@
 #include <elf/dl-tunables.h>
 
 #if HAVE_TUNABLES
-# define GET_HWCAP_MASK() TUNABLE_GET (glibc, tune, hwcap_mask, uint64_t, NULL)
+# define GET_HWCAP_MASK() TUNABLE_GET (glibc, cpu, hwcap_mask, uint64_t, NULL)
 #else
 # ifdef SHARED
 #   define GET_HWCAP_MASK() GLRO(dl_hwcap_mask)
diff --git a/elf/dl-tunables.list b/elf/dl-tunables.list
index 1f8ecb8..b108592 100644
--- a/elf/dl-tunables.list
+++ b/elf/dl-tunables.list
@@ -86,7 +86,7 @@ glibc {
       type: SIZE_T
     }
   }
-  tune {
+  cpu {
     hwcap_mask {
       type: UINT_64
       env_alias: LD_HWCAP_MASK
diff --git a/manual/README.tunables b/manual/README.tunables
index 3967679..f87a31a 100644
--- a/manual/README.tunables
+++ b/manual/README.tunables
@@ -105,11 +105,11 @@ where 'check' is the tunable name, 'int32_t' is the C type of the tunable and
 To get and set tunables in a different namespace from that module, use the full
 form of the macros as follows:
 
-  val = TUNABLE_GET_FULL (glibc, tune, hwcap_mask, uint64_t, NULL)
+  val = TUNABLE_GET_FULL (glibc, cpu, hwcap_mask, uint64_t, NULL)
 
-  TUNABLE_SET_FULL (glibc, tune, hwcap_mask, uint64_t, val)
+  TUNABLE_SET_FULL (glibc, cpu, hwcap_mask, uint64_t, val)
 
-where 'glibc' is the top namespace, 'tune' is the tunable namespace and the
+where 'glibc' is the top namespace, 'cpu' is the tunable namespace and the
 remaining arguments are the same as the short form macros.
 
 When TUNABLE_NAMESPACE is not defined in a module, TUNABLE_GET is equivalent to
diff --git a/manual/tunables.texi b/manual/tunables.texi
index bb4819b..3345a23 100644
--- a/manual/tunables.texi
+++ b/manual/tunables.texi
@@ -295,23 +295,23 @@ The default value of this tunable is @samp{3}.
 @cindex non_temporal_threshold tunables
 @cindex tunables, non_temporal_threshold
 
-@deftp {Tunable namespace} glibc.tune
+@deftp {Tunable namespace} glibc.cpu
 Behavior of @theglibc{} can be tuned to assume specific hardware capabilities
-by setting the following tunables in the @code{tune} namespace:
+by setting the following tunables in the @code{cpu} namespace:
 @end deftp
 
-@deftp Tunable glibc.tune.hwcap_mask
+@deftp Tunable glibc.cpu.hwcap_mask
 This tunable supersedes the @env{LD_HWCAP_MASK} environment variable and is
 identical in features.
 
 The @code{AT_HWCAP} key in the Auxiliary Vector specifies instruction set
 extensions available in the processor at runtime for some architectures.  The
-@code{glibc.tune.hwcap_mask} tunable allows the user to mask out those
+@code{glibc.cpu.hwcap_mask} tunable allows the user to mask out those
 capabilities at runtime, thus disabling use of those extensions.
 @end deftp
 
-@deftp Tunable glibc.tune.hwcaps
-The @code{glibc.tune.hwcaps=-xxx,yyy,-zzz...} tunable allows the user to
+@deftp Tunable glibc.cpu.hwcaps
+The @code{glibc.cpu.hwcaps=-xxx,yyy,-zzz...} tunable allows the user to
 enable CPU/ARCH feature @code{yyy}, disable CPU/ARCH feature @code{xxx}
 and @code{zzz} where the feature name is case-sensitive and has to match
 the ones in @code{sysdeps/x86/cpu-features.h}.
@@ -319,8 +319,8 @@ the ones in @code{sysdeps/x86/cpu-features.h}.
 This tunable is specific to i386 and x86-64.
 @end deftp
 
-@deftp Tunable glibc.tune.cached_memopt
-The @code{glibc.tune.cached_memopt=[0|1]} tunable allows the user to
+@deftp Tunable glibc.cpu.cached_memopt
+The @code{glibc.cpu.cached_memopt=[0|1]} tunable allows the user to
 enable optimizations recommended for cacheable memory.  If set to
 @code{1}, @theglibc{} assumes that the process memory image consists
 of cacheable (non-device) memory only.  The default, @code{0},
@@ -329,8 +329,8 @@ indicates that the process may use device memory.
 This tunable is specific to powerpc, powerpc64 and powerpc64le.
 @end deftp
 
-@deftp Tunable glibc.tune.cpu
-The @code{glibc.tune.cpu=xxx} tunable allows the user to tell @theglibc{} to
+@deftp Tunable glibc.cpu.name
+The @code{glibc.cpu.name=xxx} tunable allows the user to tell @theglibc{} to
 assume that the CPU is @code{xxx} where xxx may have one of these values:
 @code{generic}, @code{falkor}, @code{thunderxt88}, @code{thunderx2t99},
 @code{thunderx2t99p1}.
@@ -338,27 +338,27 @@ assume that the CPU is @code{xxx} where xxx may have one of these values:
 This tunable is specific to aarch64.
 @end deftp
 
-@deftp Tunable glibc.tune.x86_data_cache_size
-The @code{glibc.tune.x86_data_cache_size} tunable allows the user to set
+@deftp Tunable glibc.cpu.x86_data_cache_size
+The @code{glibc.cpu.x86_data_cache_size} tunable allows the user to set
 data cache size in bytes for use in memory and string routines.
 
 This tunable is specific to i386 and x86-64.
 @end deftp
 
-@deftp Tunable glibc.tune.x86_shared_cache_size
-The @code{glibc.tune.x86_shared_cache_size} tunable allows the user to
+@deftp Tunable glibc.cpu.x86_shared_cache_size
+The @code{glibc.cpu.x86_shared_cache_size} tunable allows the user to
 set shared cache size in bytes for use in memory and string routines.
 @end deftp
 
-@deftp Tunable glibc.tune.x86_non_temporal_threshold
-The @code{glibc.tune.x86_non_temporal_threshold} tunable allows the user
+@deftp Tunable glibc.cpu.x86_non_temporal_threshold
+The @code{glibc.cpu.x86_non_temporal_threshold} tunable allows the user
 to set threshold in bytes for non temporal store.
 
 This tunable is specific to i386 and x86-64.
 @end deftp
 
-@deftp Tunable glibc.tune.x86_ibt
-The @code{glibc.tune.x86_ibt} tunable allows the user to control how
+@deftp Tunable glibc.cpu.x86_ibt
+The @code{glibc.cpu.x86_ibt} tunable allows the user to control how
 indirect branch tracking (IBT) should be enabled.  Accepted values are
 @code{on}, @code{off}, and @code{permissive}.  @code{on} always turns
 on IBT regardless of whether IBT is enabled in the executable and its
@@ -370,8 +370,8 @@ IBT on non-CET executables and shared libraries.
 This tunable is specific to i386 and x86-64.
 @end deftp
 
-@deftp Tunable glibc.tune.x86_shstk
-The @code{glibc.tune.x86_shstk} tunable allows the user to control how
+@deftp Tunable glibc.cpu.x86_shstk
+The @code{glibc.cpu.x86_shstk} tunable allows the user to control how
 the shadow stack (SHSTK) should be enabled.  Accepted values are
 @code{on}, @code{off}, and @code{permissive}.  @code{on} always turns on
 SHSTK regardless of whether SHSTK is enabled in the executable and its
diff --git a/sysdeps/aarch64/dl-tunables.list b/sysdeps/aarch64/dl-tunables.list
index f6a8816..cfcf940 100644
--- a/sysdeps/aarch64/dl-tunables.list
+++ b/sysdeps/aarch64/dl-tunables.list
@@ -17,8 +17,8 @@
 # <http://www.gnu.org/licenses/>.
 
 glibc {
-  tune {
-    cpu {
+  cpu {
+    name {
       type: STRING
     }
   }
diff --git a/sysdeps/powerpc/cpu-features.c b/sysdeps/powerpc/cpu-features.c
index 955d477..ad809b9 100644
--- a/sysdeps/powerpc/cpu-features.c
+++ b/sysdeps/powerpc/cpu-features.c
@@ -30,7 +30,7 @@ init_cpu_features (struct cpu_features *cpu_features)
      tunables is enable, since for this case user can explicit disable
      unaligned optimizations.  */
 #if HAVE_TUNABLES
-  int32_t cached_memfunc = TUNABLE_GET (glibc, tune, cached_memopt, int32_t,
+  int32_t cached_memfunc = TUNABLE_GET (glibc, cpu, cached_memopt, int32_t,
 					NULL);
   cpu_features->use_cached_memopt = (cached_memfunc > 0);
 #else
diff --git a/sysdeps/powerpc/dl-tunables.list b/sysdeps/powerpc/dl-tunables.list
index d26636a..b337255 100644
--- a/sysdeps/powerpc/dl-tunables.list
+++ b/sysdeps/powerpc/dl-tunables.list
@@ -17,7 +17,7 @@
 # <http://www.gnu.org/licenses/>.
 
 glibc {
-  tune {
+  cpu {
     cached_memopt {
       type: INT_32
       minval: 0
diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c
index 39eba01..b4f3485 100644
--- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c
+++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c
@@ -57,7 +57,7 @@ init_cpu_features (struct cpu_features *cpu_features)
 
 #if HAVE_TUNABLES
   /* Get the tunable override.  */
-  const char *mcpu = TUNABLE_GET (glibc, tune, cpu, const char *, NULL);
+  const char *mcpu = TUNABLE_GET (glibc, cpu, name, const char *, NULL);
   if (mcpu != NULL)
     midr = get_midr_from_mcpu (mcpu);
 #endif
diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile
index 337b0b6..f2fd031 100644
--- a/sysdeps/x86/Makefile
+++ b/sysdeps/x86/Makefile
@@ -47,13 +47,13 @@ $(objpfx)tst-cet-legacy-4.out: $(objpfx)tst-cet-legacy-mod-4.so
 ifneq (no,$(have-tunables))
 $(objpfx)tst-cet-legacy-4a: $(libdl)
 $(objpfx)tst-cet-legacy-4a.out: $(objpfx)tst-cet-legacy-mod-4.so
-tst-cet-legacy-4a-ENV = GLIBC_TUNABLES=glibc.tune.x86_shstk=permissive
+tst-cet-legacy-4a-ENV = GLIBC_TUNABLES=glibc.cpu.x86_shstk=permissive
 $(objpfx)tst-cet-legacy-4b: $(libdl)
 $(objpfx)tst-cet-legacy-4b.out: $(objpfx)tst-cet-legacy-mod-4.so
-tst-cet-legacy-4b-ENV = GLIBC_TUNABLES=glibc.tune.x86_shstk=on
+tst-cet-legacy-4b-ENV = GLIBC_TUNABLES=glibc.cpu.x86_shstk=on
 $(objpfx)tst-cet-legacy-4c: $(libdl)
 $(objpfx)tst-cet-legacy-4c.out: $(objpfx)tst-cet-legacy-mod-4.so
-tst-cet-legacy-4c-ENV = GLIBC_TUNABLES=glibc.tune.x86_shstk=off
+tst-cet-legacy-4c-ENV = GLIBC_TUNABLES=glibc.cpu.x86_shstk=off
 endif
 endif
 
diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c
index 51642f8..f4e0f5a 100644
--- a/sysdeps/x86/cpu-features.c
+++ b/sysdeps/x86/cpu-features.c
@@ -22,7 +22,7 @@
 #include <libc-pointer-arith.h>
 
 #if HAVE_TUNABLES
-# define TUNABLE_NAMESPACE tune
+# define TUNABLE_NAMESPACE cpu
 # include <unistd.h>		/* Get STDOUT_FILENO for _dl_printf.  */
 # include <elf/dl-tunables.h>
 
@@ -419,7 +419,7 @@ no_cpuid:
 
   /* Reuse dl_platform, dl_hwcap and dl_hwcap_mask for x86.  */
 #if !HAVE_TUNABLES && defined SHARED
-  /* The glibc.tune.hwcap_mask tunable is initialized already, so no need to do
+  /* The glibc.cpu.hwcap_mask tunable is initialized already, so no need to do
      this.  */
   GLRO(dl_hwcap_mask) = HWCAP_IMPORTANT;
 #endif
@@ -494,7 +494,7 @@ no_cpuid:
 	  /* Disable IBT and/or SHSTK if they are enabled by kernel, but
 	     disabled by environment variable:
 
-	     GLIBC_TUNABLES=glibc.tune.hwcaps=-IBT,-SHSTK
+	     GLIBC_TUNABLES=glibc.cpu.hwcaps=-IBT,-SHSTK
 	   */
 	  unsigned int cet_feature = 0;
 	  if (!HAS_CPU_FEATURE (IBT))
diff --git a/sysdeps/x86/cpu-features.h b/sysdeps/x86/cpu-features.h
index 347a4b1..4c6d08c 100644
--- a/sysdeps/x86/cpu-features.h
+++ b/sysdeps/x86/cpu-features.h
@@ -141,7 +141,7 @@ struct cpu_features
   unsigned long int xsave_state_size;
   /* The full state size for XSAVE when XSAVEC is disabled by
 
-     GLIBC_TUNABLES=glibc.tune.hwcaps=-XSAVEC_Usable
+     GLIBC_TUNABLES=glibc.cpu.hwcaps=-XSAVEC_Usable
    */
   unsigned int xsave_state_full_size;
   unsigned int feature[FEATURE_INDEX_MAX];
diff --git a/sysdeps/x86/cpu-tunables.c b/sysdeps/x86/cpu-tunables.c
index 69155a8..8e92358 100644
--- a/sysdeps/x86/cpu-tunables.c
+++ b/sysdeps/x86/cpu-tunables.c
@@ -17,7 +17,7 @@
    <http://www.gnu.org/licenses/>.  */
 
 #if HAVE_TUNABLES
-# define TUNABLE_NAMESPACE tune
+# define TUNABLE_NAMESPACE cpu
 # include <stdbool.h>
 # include <stdint.h>
 # include <unistd.h>		/* Get STDOUT_FILENO for _dl_printf.  */
@@ -116,7 +116,7 @@ TUNABLE_CALLBACK (set_hwcaps) (tunable_val_t *valp)
      the hardware which wasn't available when the selection was made.
      The environment variable:
 
-     GLIBC_TUNABLES=glibc.tune.hwcaps=-xxx,yyy,-zzz,....
+     GLIBC_TUNABLES=glibc.cpu.hwcaps=-xxx,yyy,-zzz,....
 
      can be used to enable CPU/ARCH feature yyy, disable CPU/ARCH feature
      yyy and zzz, where the feature name is case-sensitive and has to
diff --git a/sysdeps/x86/dl-cet.c b/sysdeps/x86/dl-cet.c
index b82ba14..78f36bc 100644
--- a/sysdeps/x86/dl-cet.c
+++ b/sysdeps/x86/dl-cet.c
@@ -128,7 +128,7 @@ dl_cet_check (struct link_map *m, const char *program)
 	  /* Enable IBT and SHSTK only if they are enabled in executable.
 	     NB: IBT and SHSTK may be disabled by environment variable:
 
-	     GLIBC_TUNABLES=glibc.tune.hwcaps=-IBT,-SHSTK
+	     GLIBC_TUNABLES=glibc.cpu.hwcaps=-IBT,-SHSTK
 	   */
 	  enable_ibt &= (HAS_CPU_FEATURE (IBT)
 			 && (enable_ibt_type == CET_ALWAYS_ON
diff --git a/sysdeps/x86/dl-tunables.list b/sysdeps/x86/dl-tunables.list
index 73886b1..2a457d0 100644
--- a/sysdeps/x86/dl-tunables.list
+++ b/sysdeps/x86/dl-tunables.list
@@ -17,7 +17,7 @@
 # <http://www.gnu.org/licenses/>.
 
 glibc {
-  tune {
+  cpu {
     hwcaps {
       type: STRING
     }
diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile
index 9f1562f..d51cf03 100644
--- a/sysdeps/x86_64/Makefile
+++ b/sysdeps/x86_64/Makefile
@@ -57,7 +57,7 @@ modules-names += x86_64/tst-x86_64mod-1
 LDFLAGS-tst-x86_64mod-1.so = -Wl,-soname,tst-x86_64mod-1.so
 ifneq (no,$(have-tunables))
 # Test the state size for XSAVE when XSAVEC is disabled.
-tst-x86_64-1-ENV = GLIBC_TUNABLES=glibc.tune.hwcaps=-XSAVEC_Usable
+tst-x86_64-1-ENV = GLIBC_TUNABLES=glibc.cpu.hwcaps=-XSAVEC_Usable
 endif
 
 $(objpfx)tst-x86_64-1: $(objpfx)x86_64/tst-x86_64mod-1.so
@@ -74,7 +74,7 @@ $(objpfx)tst-platform-1.out: $(objpfx)x86_64/tst-platformmod-2.so
 # Turn off AVX512F_Usable and AVX2_Usable so that GLRO(dl_platform) is
 # always set to x86_64.
 tst-platform-1-ENV = LD_PRELOAD=$(objpfx)\$$PLATFORM/tst-platformmod-2.so \
-	GLIBC_TUNABLES=glibc.tune.hwcaps=-AVX512F_Usable,-AVX2_Usable
+	GLIBC_TUNABLES=glibc.cpu.hwcaps=-AVX512F_Usable,-AVX2_Usable
 endif
 
 tests += tst-audit3 tst-audit4 tst-audit5 tst-audit6 tst-audit7 \