mirror of
https://github.com/Homebrew/brew.git
synced 2025-07-14 16:09:03 +08:00
9ac306e464
This is the pattern we've been adopting for a while and it's a bit cleaner. Let's remove all of the existing usage of the existing pattern to avoid confusion when adopting the new one.
133 lines
4.5 KiB
Ruby
133 lines
4.5 KiB
Ruby
# typed: true # rubocop:todo Sorbet/StrictSigil
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# frozen_string_literal: true
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module OS
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module Linux
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module Install
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module ClassMethods
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# This is a list of known paths to the host dynamic linker on Linux if
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# the host glibc is new enough. The symlink_ld_so method will fail if
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# the host linker cannot be found in this list.
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DYNAMIC_LINKERS = %w[
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/lib64/ld-linux-x86-64.so.2
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/lib64/ld64.so.2
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/lib/ld-linux.so.3
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/lib/ld-linux.so.2
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/lib/ld-linux-aarch64.so.1
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/lib/ld-linux-armhf.so.3
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/system/bin/linker64
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/system/bin/linker
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].freeze
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# We link GCC runtime libraries that are not specifically used for Fortran,
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# which are linked by the GCC formula. We only use the versioned shared libraries
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# as the other shared and static libraries are only used at build time where
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# GCC can find its own libraries.
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GCC_RUNTIME_LIBS = %w[
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libatomic.so.1
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libgcc_s.so.1
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libgomp.so.1
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libstdc++.so.6
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].freeze
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def perform_preinstall_checks(all_fatal: false)
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super
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symlink_ld_so
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setup_preferred_gcc_libs
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end
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def global_post_install
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super
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symlink_ld_so
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setup_preferred_gcc_libs
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end
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def check_cpu
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return if ::Hardware::CPU.intel? && ::Hardware::CPU.is_64_bit?
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return if ::Hardware::CPU.arm?
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message = "Sorry, Homebrew does not support your computer's CPU architecture!"
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if ::Hardware::CPU.ppc64le?
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message += <<~EOS
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For OpenPOWER Linux (PPC64LE) support, see:
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#{Formatter.url("https://github.com/homebrew-ppc64le/brew")}
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EOS
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end
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::Kernel.abort message
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end
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def symlink_ld_so
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brew_ld_so = HOMEBREW_PREFIX/"lib/ld.so"
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ld_so = HOMEBREW_PREFIX/"opt/glibc/bin/ld.so"
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unless ld_so.readable?
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ld_so = DYNAMIC_LINKERS.find { |s| File.executable? s }
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if ld_so.blank?
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::Kernel.raise "Unable to locate the system's dynamic linker" unless brew_ld_so.readable?
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return
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end
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end
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return if brew_ld_so.readable? && (brew_ld_so.readlink == ld_so)
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FileUtils.mkdir_p HOMEBREW_PREFIX/"lib"
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FileUtils.ln_sf ld_so, brew_ld_so
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end
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def setup_preferred_gcc_libs
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gcc_opt_prefix = HOMEBREW_PREFIX/"opt/#{OS::LINUX_PREFERRED_GCC_RUNTIME_FORMULA}"
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glibc_installed = (HOMEBREW_PREFIX/"opt/glibc/bin/ld.so").readable?
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return unless gcc_opt_prefix.readable?
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if glibc_installed
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ld_so_conf_d = HOMEBREW_PREFIX/"etc/ld.so.conf.d"
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unless ld_so_conf_d.exist?
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ld_so_conf_d.mkpath
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FileUtils.chmod "go-w", ld_so_conf_d
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end
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# Add gcc to ld search paths
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ld_gcc_conf = ld_so_conf_d/"50-homebrew-preferred-gcc.conf"
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ld_gcc_conf_content = <<~EOS
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# This file is generated by Homebrew. Do not modify.
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#{gcc_opt_prefix}/lib/gcc/current
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EOS
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if !ld_gcc_conf.exist? || (ld_gcc_conf.read != ld_gcc_conf_content)
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ld_gcc_conf.atomic_write ld_gcc_conf_content
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FileUtils.chmod "u=rw,go-wx", ld_gcc_conf
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FileUtils.rm_f HOMEBREW_PREFIX/"etc/ld.so.cache"
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::Kernel.system HOMEBREW_PREFIX/"opt/glibc/sbin/ldconfig"
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end
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else
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::Kernel.odie "#{HOMEBREW_PREFIX}/lib does not exist!" unless (HOMEBREW_PREFIX/"lib").readable?
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end
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GCC_RUNTIME_LIBS.each do |library|
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gcc_library_symlink = HOMEBREW_PREFIX/"lib/#{library}"
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if glibc_installed
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# Remove legacy symlinks
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FileUtils.rm gcc_library_symlink if gcc_library_symlink.symlink?
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else
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gcc_library = gcc_opt_prefix/"lib/gcc/current/#{library}"
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# Skip if the link target doesn't exist.
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next unless gcc_library.readable?
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# Also skip if the symlink already exists.
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next if gcc_library_symlink.readable? && (gcc_library_symlink.readlink == gcc_library)
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FileUtils.ln_sf gcc_library, gcc_library_symlink
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end
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end
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end
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end
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end
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end
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end
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Homebrew::Install.singleton_class.prepend(OS::Linux::Install::ClassMethods)
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