diff options
Diffstat (limited to 'tool/transform_mjit_header.rb')
| -rw-r--r-- | tool/transform_mjit_header.rb | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/tool/transform_mjit_header.rb b/tool/transform_mjit_header.rb index 99bbaa6541..9cc2cfac08 100644 --- a/tool/transform_mjit_header.rb +++ b/tool/transform_mjit_header.rb @@ -13,6 +13,13 @@ module MJITHeader FUNC_HEADER_REGEXP = /\A(\s*#{ATTR_REGEXP})*[^\[{(]*\((#{ATTR_REGEXP}|[^()])*\)(\s*#{ATTR_REGEXP})*\s*/ TARGET_NAME_REGEXP = /\A(rb|ruby|vm|insn|attr)_/ + # Predefined macros for compilers which are already supported by MJIT. + # We're going to support cl.exe too (WIP) but `cl.exe -E` can't produce macro. + SUPPORTED_CC_MACROS = [ + '__GNUC__', # gcc + '__clang__', # clang + ] + # For MinGW's ras.h. Those macros have its name in its definition and can't be preprocessed multiple times. RECURSIVE_MACROS = %w[ RASCTRYINFO @@ -121,6 +128,15 @@ module MJITHeader def self.windows? RUBY_PLATFORM =~ /mswin|mingw|msys/ end + + def self.cl_exe?(cc) + cc =~ /\Acl(\z| |\.exe)/ + end + + # If code has macro which only supported compilers predefine, return true. + def self.supported_header?(code) + SUPPORTED_CC_MACROS.any? { |macro| code =~ /^#\s*define\s+#{macro}\b/ } + end end if ARGV.size != 3 @@ -130,12 +146,18 @@ end cc = ARGV[0] code = File.binread(ARGV[1]) # Current version of the header file. outfile = ARGV[2] -if cc =~ /\Acl(\z| |\.exe)/ +if MJITHeader.cl_exe?(cc) cflags = '-DMJIT_HEADER -Zs' else cflags = '-S -DMJIT_HEADER -fsyntax-only -Werror=implicit-function-declaration -Werror=implicit-int -Wfatal-errors' end +if !MJITHeader.cl_exe?(cc) && !MJITHeader.supported_header?(code) + puts "This compiler (#{cc}) looks not supported for MJIT. Giving up to generate MJIT header." + MJITHeader.write("#error MJIT does not support '#{cc}' yet", outfile) + exit +end + if MJITHeader.windows? MJITHeader.remove_harmful_macros!(code) end |