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95 lines
3.4 KiB
Ruby
95 lines
3.4 KiB
Ruby
# typed: true
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# frozen_string_literal: true
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require "compilers"
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class LinkageChecker
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# Libraries provided by glibc and gcc.
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SYSTEM_LIBRARY_ALLOWLIST = %w[
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ld-linux-x86-64.so.2
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ld-linux-aarch64.so.1
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libanl.so.1
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libatomic.so.1
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libc.so.6
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libdl.so.2
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libm.so.6
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libmvec.so.1
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libnsl.so.1
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libnss_files.so.2
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libpthread.so.0
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libresolv.so.2
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librt.so.1
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libthread_db.so.1
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libutil.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 display_deprecated_warning(strict: false)
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# Steps when moving these to `odisabled`:
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# - Remove the old library from SYSTEM_LIBRARY_ALLOWLIST above.
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# - Remove the `disable` and `disable_for_developer` kwargs here.
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# - Adjust the `broken_library_linkage?` override below to not check for the library.
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# - Remove the relevant `fail_on_lib*?`.
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# If there's no more deprecations left:
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# - Remove the `broken_library_linkage?` override and the generic alias in HOMEBREW_LIBRARY/linkage_checker.rb.
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#
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# Steps when removing handling for a library entirely (assuming the steps to `odisabled` has already been done):
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# - Remove the relevant setting of `@lib*_found` in `check_dylibs` below.
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# - Remove the `odisabled` line
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# If there's no library deprecated/disabled handling left:
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# - Remove the `display_` overrides here and the associated generic aliases in HOMEBREW_LIBRARY/linkage_checker.rb
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odisabled "linkage to libcrypt.so.1", "libcrypt.so.2 in the libxcrypt formula" if @libcrypt_found
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return unless @libnsl_found
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odeprecated "linkage to libnsl.so.1", "libnsl.so.3 in the libnsl formula",
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disable: fail_on_libnsl1?(strict: strict),
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disable_for_developers: false
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end
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def display_normal_output
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generic_display_normal_output
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display_deprecated_warning
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end
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def display_test_output(puts_output: true, strict: false)
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generic_display_test_output(puts_output: puts_output, strict: strict)
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display_deprecated_warning(strict: strict)
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end
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def broken_library_linkage?(test: false, strict: false)
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generic_broken_library_linkage?(test: test, strict: strict) || (fail_on_libnsl1?(strict: strict) && @libnsl_found)
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end
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private
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def fail_on_libnsl1?(strict:)
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strict || ENV["HOMEBREW_DISALLOW_LIBNSL1"].present?
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end
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def check_dylibs(rebuild_cache:)
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generic_check_dylibs(rebuild_cache: rebuild_cache)
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@libcrypt_found = true if @system_dylibs.any? { |s| File.basename(s) == "libcrypt.so.1" }
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@libnsl_found = true if @system_dylibs.any? { |s| File.basename(s) == "libnsl.so.1" }
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# glibc and gcc are implicit dependencies.
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# No other linkage to system libraries is expected or desired.
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@unwanted_system_dylibs = @system_dylibs.reject do |s|
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SYSTEM_LIBRARY_ALLOWLIST.include? File.basename(s)
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end
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# We build all formulae with an RPATH that includes the gcc formula's runtime lib directory.
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# See: https://github.com/Homebrew/brew/blob/e689cc07/Library/Homebrew/extend/os/linux/extend/ENV/super.rb#L53
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# This results in formulae showing linkage with gcc whenever it is installed, even if no dependency is declared.
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# See discussions at:
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# https://github.com/Homebrew/brew/pull/13659
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# https://github.com/Homebrew/brew/pull/13796
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# TODO: Find a nicer way to handle this. (e.g. examining the ELF file to determine the required libstdc++.)
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@undeclared_deps.delete("gcc")
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end
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end
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