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Expand tabs for rb_mjit_header.h

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I can't live without this when using gdb or perf report.

See also: [Misc #16112]
This commit is contained in:
Takashi Kokubun 2020-03-22 00:12:21 -07:00
parent 0bed561f6a
commit 57119dd561
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GPG Key ID: 6FFC433B12EE23DD
2 changed files with 38 additions and 2 deletions
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5
common.mk
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@ -224,9 +224,10 @@ mjit_config.h: Makefile
# Other `-Dxxx`s preceding `-DMJIT_HEADER` will be removed in transform_mjit_header.rb. # Other `-Dxxx`s preceding `-DMJIT_HEADER` will be removed in transform_mjit_header.rb.
# So `-DMJIT_HEADER` should be passed first when rb_mjit_header.h is generated. # So `-DMJIT_HEADER` should be passed first when rb_mjit_header.h is generated.
$(TIMESTAMPDIR)/$(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).time: probes.h vm.$(OBJEXT) \ $(TIMESTAMPDIR)/$(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).time: probes.h vm.$(OBJEXT) \
$(TIMESTAMPDIR)/$(arch)/.time $(TIMESTAMPDIR)/$(arch)/.time $(srcdir)/tool/run_without_tabs.rb
$(ECHO) building $(@F:.time=.h) $(ECHO) building $(@F:.time=.h)
$(Q) $(CPP) -DMJIT_HEADER $(MJIT_HEADER_FLAGS) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(srcdir)/vm.c $(CPPOUTFLAG)$(@F:.time=.h).new $(Q) $(BASERUBY) $(srcdir)/tool/run_without_tabs.rb \
$(CPP) -DMJIT_HEADER $(MJIT_HEADER_FLAGS) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(srcdir)/vm.c $(CPPOUTFLAG)$(@F:.time=.h).new
$(Q) $(IFCHANGE) "--timestamp=$@" $(@F:.time=.h) $(@F:.time=.h).new $(Q) $(IFCHANGE) "--timestamp=$@" $(@F:.time=.h) $(@F:.time=.h).new
$(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).h: $(TIMESTAMPDIR)/$(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).time $(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).h: $(TIMESTAMPDIR)/$(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).time

35
tool/run_without_tabs.rb Normal file
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@ -0,0 +1,35 @@
# frozen_string_literal: true
# This is a script to run a command in ARGV, expanding tabs in some files
# included by vm.c to normalize indentation of MJIT header.
#
# Note that preprocessor of GCC converts a hard tab to one spaces, where
# we expect it to be shown as 8 spaces. To obviate this script, we need
# to convert all tabs to spaces in these files.
require 'fileutils'
srcdir = File.expand_path('..', __dir__)
targets = Dir.glob(File.join(srcdir, 'vm*.*'))
sources = {}
mtimes = {}
targets.each do |target|
sources[target] = File.read(target)
mtimes[target] = File.mtime(target)
expanded = sources[target].gsub(/^\t+/) { |tab| ' ' * 8 * tab.length }
if sources[target] == expanded
puts "#{target.dump} has no hard tab indentation. This should be ignored in tool/run_without_tabs.rb."
end
File.write(target, expanded)
FileUtils.touch(target, mtime: mtimes[target])
end
result = system(*ARGV)
targets.each do |target|
File.write(target, sources.fetch(target))
FileUtils.touch(target, mtime: mtimes.fetch(target))
end
exit result