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aarch64: Add HWCAP_GCS

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Use upper 32 bits of HWCAP.

Reviewed-by: Andreas K. Huettel <dilfridge@gentoo.org>
This commit is contained in:
Yury Khrustalev 2025-01-21 09:39:45 +00:00
parent 71b49e299d
commit 50eaf54883
2 changed files with 1 additions and 4 deletions
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1
sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
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@ -54,6 +54,7 @@
#define HWCAP_SB (1 << 29)
#define HWCAP_PACA (1 << 30)
#define HWCAP_PACG (1UL << 31)
#define HWCAP_GCS (1UL << 32)
#define HWCAP2_DCPODP (1 << 0)
#define HWCAP2_SVE2 (1 << 1)

4
sysdeps/unix/sysv/linux/aarch64/cpu-features.c
View file

@ -177,10 +177,6 @@ init_cpu_features (struct cpu_features *cpu_features)
/* Check if MOPS is supported. */
cpu_features->mops = GLRO (dl_hwcap2) & HWCAP2_MOPS;
#ifndef HWCAP_GCS
#define HWCAP_GCS (1UL << 32)
#endif
if (GLRO (dl_hwcap) & HWCAP_GCS)
/* GCS status may be updated later by binary compatibility checks. */
GL (dl_aarch64_gcs) = TUNABLE_GET (glibc, cpu, aarch64_gcs, uint64_t, 0);