Module: Hardware Private
- Defined in:
- extend/os/mac/hardware.rb,
extend/os/mac/hardware/cpu.rb,
extend/os/linux/hardware/cpu.rb,
hardware.rb
Overview
This module is part of a private API. This module may only be used in the Homebrew/brew repository. Third parties should avoid using this module if possible, as it may be removed or changed without warning.
Helper module for querying hardware information.
Defined Under Namespace
Classes: CPU
Class Method Summary collapse
- .cores_as_words ⇒ Object private
- .oldest_cpu(_version = nil) ⇒ Symbol (also: generic_oldest_cpu) private
-
.rustflags_target_cpu ⇒ String?
private
Returns a Rust flag to set the target CPU if necessary.
Class Method Details
.cores_as_words ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'hardware.rb', line 189 def cores_as_words case Hardware::CPU.cores when 1 then "single" when 2 then "dual" when 4 then "quad" when 6 then "hexa" when 8 then "octa" when 12 then "dodeca" else Hardware::CPU.cores end end |
.oldest_cpu(_version = nil) ⇒ Symbol Also known as: generic_oldest_cpu
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'extend/os/mac/hardware.rb', line 6 def self.oldest_cpu(version = nil) version = if version MacOSVersion.new(version.to_s) else MacOS.version end if CPU.arch == :arm64 :arm_vortex_tempest # This cannot use a newer CPU e.g. haswell because Rosetta 2 does not # support AVX instructions in bottles: # https://github.com/Homebrew/homebrew-core/issues/67713 elsif version >= :ventura :westmere elsif version >= :mojave :nehalem else generic_oldest_cpu end end |
.rustflags_target_cpu ⇒ String?
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
Returns a Rust flag to set the target CPU if necessary. Defaults to nil.
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# File 'hardware.rb', line 230 def rustflags_target_cpu # Rust already defaults to the oldest supported cpu for each target-triplet # so it's safe to ignore generic archs such as :armv6 here. # Rust defaults to apple-m1 since Rust 1.71 for aarch64-apple-darwin. @target_cpu ||= case (cpu = oldest_cpu) when :core :prescott when :native, :ivybridge, :sandybridge, :westmere, :nehalem, :core2 cpu end return if @target_cpu.blank? "--codegen target-cpu=#{@target_cpu}" end |