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require 'mach'
module MacCPUs
OPTIMIZATION_FLAGS = {
:penryn => '-march=core2 -msse4.1',
:core2 => '-march=core2',
:core => '-march=prescott',
:g3 => '-mcpu=750',
:g4 => '-mcpu=7400',
:g4e => '-mcpu=7450',
:g5 => '-mcpu=970'
}.freeze
def optimization_flags; OPTIMIZATION_FLAGS; end
# These methods use info spewed out by sysctl.
# Look in <mach/machine.h> for decoding info.
def type
@type ||= `/usr/sbin/sysctl -n hw.cputype`.to_i
case @type
when 7
:intel
when 18
:ppc
else
:dunno
end
end
def family
if intel?
case @intel_family ||= `/usr/sbin/sysctl -n hw.cpufamily`.to_i
when 0x73d67300 # Yonah: Core Solo/Duo
:core
when 0x426f69ef # Merom: Core 2 Duo
:core2
when 0x78ea4fbc # Penryn
:penryn
when 0x6b5a4cd2 # Nehalem
:nehalem
when 0x573B5EEC # Arrandale
:arrandale
when 0x5490B78C # Sandy Bridge
:sandybridge
when 0x1F65E835 # Ivy Bridge
:ivybridge
when 0x10B282DC # Haswell
:haswell
else
:dunno
end
elsif ppc?
case @ppc_family ||= `/usr/sbin/sysctl -n hw.cpusubtype`.to_i
when 9
:g3 # PowerPC 750
when 10
:g4 # PowerPC 7400
when 11
:g4e # PowerPC 7450
when 100
# This is the only 64-bit PPC CPU type, so it's useful
# to distinguish in `brew config` output and in bottle tags
MacOS.prefer_64_bit? ? :g5_64 : :g5 # PowerPC 970
else
:dunno
end
end
end
def extmodel
@extmodel ||= `/usr/sbin/sysctl -n machdep.cpu.extmodel`.to_i
end
def cores
@cores ||= `/usr/sbin/sysctl -n hw.ncpu`.to_i
end
def bits
@bits ||= sysctl_bool("hw.cpu64bit_capable") ? 64 : 32
end
def arch_32_bit
intel? ? :i386 : :ppc
end
def arch_64_bit
intel? ? :x86_64 : :ppc64
end
# Returns an array that's been extended with ArchitectureListExtension,
# which provides helpers like #as_arch_flags and #as_cmake_arch_flags.
def universal_archs
# Building 64-bit is a no-go on Tiger, and pretty hit or miss on Leopard.
# Don't even try unless Tigerbrew's experimental 64-bit Leopard support is enabled.
if MacOS.version <= :leopard and !MacOS.prefer_64_bit?
[arch_32_bit].extend ArchitectureListExtension
else
[arch_32_bit, arch_64_bit].extend ArchitectureListExtension
end
end
def features
@features ||= `/usr/sbin/sysctl -n machdep.cpu.features`.split(" ").map do |s|
s.downcase.intern
end
end
def aes?
sysctl_bool('hw.optional.aes')
end
def altivec?
sysctl_bool('hw.optional.altivec')
end
def avx?
sysctl_bool('hw.optional.avx1_0')
end
def avx2?
sysctl_bool('hw.optional.avx2_0')
end
def sse3?
sysctl_bool('hw.optional.sse3')
end
def ssse3?
sysctl_bool('hw.optional.supplementalsse3')
end
def sse4?
sysctl_bool('hw.optional.sse4_1')
end
def sse4_2?
sysctl_bool('hw.optional.sse4_2')
end
protected
def sysctl_bool(property)
(@properties ||= {}).fetch(property) do
result = nil
IO.popen("/usr/sbin/sysctl -n '#{property}' 2>/dev/null") do |f|
result = f.gets.to_i # should be 0 or 1
end
# sysctl call succeded and printed 1
@properties[property] = $?.success? && result == 1
end
end
end
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