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Nuno Cruces 3687fbd716 cpu: better defaults on darwin ARM64 
This is motivated by
https://github.com/wazero/wazero/pull/2473
which needs to special case darwin for testing the availability of
HasATOMICS, although all M-series CPUs support it.

We could do sysctlbyname, like syscall_darwin_x86_gc.go, if that's
preferred:
https://developer.apple.com/documentation/kernel/1387446-sysctlbyname/determining_instruction_set_characteristics

Change-Id: I0f5ea55ef5cda4956db44b2d40f2f10044fa3321
GitHub-Last-Rev: d5d0f1e989579de2a25c97c00c7e9db5d4b0cb29
GitHub-Pull-Request: golang/sys#267
Reviewed-on: https://go-review.googlesource.com/c/sys/+/743320
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
2026-02-12 09:29:35 -08:00
..
asm_aix_ppc64.s
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
asm_darwin_x86_gc.s
cpu: conditionally re-enable AVX512 support on darwin/amd64
2024-11-04 23:17:32 +00:00
byteorder.go
cpu: add basic support for GOARCH=loong64
2022-04-12 01:57:24 +00:00
cpu_aix.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_arm64.go
cpu: better defaults on darwin ARM64
2026-02-12 09:29:35 -08:00
cpu_arm64.s
Revert "cpu: add HPDS, LOR, PAN detection for arm64"
2025-11-24 15:42:25 -08:00
cpu_arm.go
cpu: add GODEBUG options to disable use of instruction set extensions
2020-08-05 06:55:43 +00:00
cpu_darwin_arm64.go
cpu: better defaults on darwin ARM64
2026-02-12 09:29:35 -08:00
cpu_darwin_x86.go
cpu: conditionally re-enable AVX512 support on darwin/amd64
2024-11-04 23:17:32 +00:00
cpu_gc_arm64.go
Revert "cpu: add HPDS, LOR, PAN detection for arm64"
2025-11-24 15:42:25 -08:00
cpu_gc_s390x.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_gc_x86.go
cpu: conditionally re-enable AVX512 support on darwin/amd64
2024-11-04 23:17:32 +00:00
cpu_gc_x86.s
cpu: conditionally re-enable AVX512 support on darwin/amd64
2024-11-04 23:17:32 +00:00
cpu_gccgo_arm64.go
cpu: better defaults on darwin ARM64
2026-02-12 09:29:35 -08:00
cpu_gccgo_s390x.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_gccgo_x86.c
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_gccgo_x86.go
cpu: conditionally re-enable AVX512 support on darwin/amd64
2024-11-04 23:17:32 +00:00
cpu_linux_arm64.go
all: execute gofmt
2024-10-11 18:38:43 +00:00
cpu_linux_arm.go
cpu: support ARM feature detection on Linux
2019-09-27 07:32:44 +00:00
cpu_linux_loong64.go
cpu: add support for detecting cpu features on loong64
2025-03-11 18:36:47 -07:00
cpu_linux_mips64x.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_linux_noinit.go
cpu: add support for detecting cpu features on loong64
2025-03-11 18:36:47 -07:00
cpu_linux_ppc64x.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_linux_riscv64.go
cpu: add crypto extensions detection for riscv64
2025-05-01 02:30:04 -07:00
cpu_linux_s390x.go
cpu: add support for zos/s390x
2020-10-28 09:49:53 +00:00
cpu_linux.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_loong64.go
cpu: add support for detecting cpu features on loong64
2025-03-11 18:36:47 -07:00
cpu_loong64.s
cpu: replace specific instructions with WORD in the function get_cpucfg on loong64
2025-03-12 17:52:00 -07:00
cpu_mips64x.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_mipsx.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_netbsd_arm64.go
Revert "cpu: add HPDS, LOR, PAN detection for arm64"
2025-11-24 15:42:25 -08:00
cpu_openbsd_arm64.go
Revert "cpu: add HPDS, LOR, PAN detection for arm64"
2025-11-24 15:42:25 -08:00
cpu_openbsd_arm64.s
cpu: implement CPU feature detection for openbsd/arm64
2022-08-08 15:39:00 +00:00
cpu_other_arm64.go
cpu: better defaults on darwin ARM64
2026-02-12 09:29:35 -08:00
cpu_other_arm.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_other_mips64x.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_other_ppc64x.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_other_riscv64.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_other_x86.go
cpu: conditionally re-enable AVX512 support on darwin/amd64
2024-11-04 23:17:32 +00:00
cpu_ppc64x.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_riscv64.go
cpu: add crypto extensions detection for riscv64
2025-05-01 02:30:04 -07:00
cpu_s390x_test.go
cpu: add support for zos/s390x
2020-10-28 09:49:53 +00:00
cpu_s390x.go
cpu: add support for zos/s390x
2020-10-28 09:49:53 +00:00
cpu_s390x.s
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_test.go
cpu: add support for detecting cpu features on loong64
2025-03-11 18:36:47 -07:00
cpu_wasm.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
cpu_windows_arm64.go
cpu: use IsProcessorFeaturePresent to calculate ARM64 on windows
2026-02-07 21:32:41 -08:00
cpu_x86.go
sys/cpu: add symbolic constants for remaining cpuid bits
2025-12-19 08:52:28 -08:00
cpu_zos_s390x.go
cpu: add support for zos/s390x
2020-10-28 09:49:53 +00:00
cpu_zos.go
cpu: add support for zos/s390x
2020-10-28 09:49:53 +00:00
cpu.go
Revert "cpu: add HPDS, LOR, PAN detection for arm64"
2025-11-24 15:42:25 -08:00
endian_big.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
endian_little.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
endian_test.go
cpu: add test for IsBigEndian
2023-05-16 16:00:41 +00:00
hwcap_linux.go
cpu: remove the use of ioutil
2023-09-14 15:30:27 +00:00
parse_test.go
cpu: parse /proc/cpuinfo on linux/arm64 on old kernels when needed
2022-12-20 02:54:02 +00:00
parse.go
all: simplify code by using modern Go constructs
2025-04-03 13:04:48 -07:00
proc_cpuinfo_linux.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
runtime_auxv_go121_test.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
runtime_auxv_go121.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
runtime_auxv.go
cpu: get hwcap/auxv from the Go 1.21+ runtime
2023-02-17 19:36:37 +00:00
syscall_aix_gccgo.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
syscall_aix_ppc64_gc.go
all: update go directive to 1.18
2023-10-11 21:54:30 +00:00
syscall_darwin_x86_gc.go
cpu: conditionally re-enable AVX512 support on darwin/amd64
2024-11-04 23:17:32 +00:00