diff options
| -rw-r--r-- | sysdeps/aarch64/dl-tunables.list | 5 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/aarch64/cpu-features.c | 4 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/aarch64/dl-procruntime.c | 37 |
3 files changed, 46 insertions, 0 deletions
diff --git a/sysdeps/aarch64/dl-tunables.list b/sysdeps/aarch64/dl-tunables.list index 92c6cbfa92..c08be86932 100644 --- a/sysdeps/aarch64/dl-tunables.list +++ b/sysdeps/aarch64/dl-tunables.list @@ -21,5 +21,10 @@ glibc { name { type: STRING } + aarch64_gcs { + type: UINT_64 + minval: 0 + default: 0 + } } } diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c index b1a3f673f0..a8b6a4654a 100644 --- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c +++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c @@ -128,4 +128,8 @@ init_cpu_features (struct cpu_features *cpu_features) /* Check if MOPS is supported. */ cpu_features->mops = GLRO (dl_hwcap2) & HWCAP2_MOPS; + + if (GLRO (dl_hwcap2) & HWCAP2_GCS) + /* GCS status may be updated later by binary compatibility checks. */ + GL (dl_aarch64_gcs) = TUNABLE_GET (glibc, cpu, aarch64_gcs, uint64_t, 0); } diff --git a/sysdeps/unix/sysv/linux/aarch64/dl-procruntime.c b/sysdeps/unix/sysv/linux/aarch64/dl-procruntime.c new file mode 100644 index 0000000000..23c61da6c4 --- /dev/null +++ b/sysdeps/unix/sysv/linux/aarch64/dl-procruntime.c @@ -0,0 +1,37 @@ +/* Data for processor runtime information. AArch64 version. + Copyright (C) 2024 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 PROCINFO_CLASS +# define PROCINFO_CLASS +#endif + +#if !IS_IN (ldconfig) +# if !defined PROCINFO_DECL && defined SHARED + ._dl_aarch64_gcs +# else +PROCINFO_CLASS unsigned long _dl_aarch64_gcs +# endif +# ifndef PROCINFO_DECL += 0 +# endif +# if !defined SHARED || defined PROCINFO_DECL +; +# else +, +# endif +#endif |