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rbconfig/sizeof: calculate at compilation time

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* ext/rbconfig/sizeof/extconf.rb: just check the existence of each
  types, to reduce configuration time, especially cross-compiling.
* template/sizes.c.tmpl: calculate sizes of checked types at
  compilation time.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54759 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-04-25 05:39:12 +00:00
parent 75a5dcf170
commit a7dd094791
3 changed files with 58 additions and 31 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
Mon Apr 25 14:39:11 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/rbconfig/sizeof/extconf.rb: just check the existence of each
types, to reduce configuration time, especially cross-compiling.
* template/sizes.c.tmpl: calculate sizes of checked types at
compilation time.
Mon Apr 25 11:27:27 2016 Marcus Stollsteimer <sto.mar@web.de>
* doc/extension.rdoc: Improvements to english grammers.

60
ext/rbconfig/sizeof/extconf.rb
View file

@ -2,35 +2,35 @@
$srcs = %w[sizes.c]
$distcleanfiles.concat($srcs)
check_sizeof('int_least8_t')
check_sizeof('int_least16_t')
check_sizeof('int_least32_t')
check_sizeof('int_least64_t')
check_sizeof('int_fast8_t')
check_sizeof('int_fast16_t')
check_sizeof('int_fast32_t')
check_sizeof('int_fast64_t')
check_sizeof('intmax_t')
check_sizeof('sig_atomic_t', %w[signal.h])
check_sizeof('wchar_t')
check_sizeof('wint_t', %w[wctype.h])
check_sizeof('wctrans_t', %w[wctype.h])
check_sizeof('wctype_t', %w[wctype.h])
check_sizeof('_Bool')
check_sizeof('long double')
check_sizeof('float _Complex')
check_sizeof('double _Complex')
check_sizeof('long double _Complex')
check_sizeof('float _Imaginary')
check_sizeof('double _Imaginary')
check_sizeof('long double _Imaginary')
check_sizeof('__int128') # x86_64 ABI (optional)
check_sizeof('__float128') # x86_64 ABI (optional)
check_sizeof('_Decimal32') # x86_64 ABI
check_sizeof('_Decimal64') # x86_64 ABI
check_sizeof('_Decimal128') # x86_64 ABI
check_sizeof('__m64') # x86_64 ABI (optional)
check_sizeof('__m128') # x86_64 ABI (optional)
check_sizeof('__float80') # gcc x86
have_type('int_least8_t')
have_type('int_least16_t')
have_type('int_least32_t')
have_type('int_least64_t')
have_type('int_fast8_t')
have_type('int_fast16_t')
have_type('int_fast32_t')
have_type('int_fast64_t')
have_type('intmax_t')
have_type('sig_atomic_t', %w[signal.h])
have_type('wchar_t')
have_type('wint_t', %w[wctype.h])
have_type('wctrans_t', %w[wctype.h])
have_type('wctype_t', %w[wctype.h])
have_type('_Bool')
have_type('long double')
have_type('float _Complex')
have_type('double _Complex')
have_type('long double _Complex')
have_type('float _Imaginary')
have_type('double _Imaginary')
have_type('long double _Imaginary')
have_type('__int128') # x86_64 ABI (optional)
have_type('__float128') # x86_64 ABI (optional)
have_type('_Decimal32') # x86_64 ABI
have_type('_Decimal64') # x86_64 ABI
have_type('_Decimal128') # x86_64 ABI
have_type('__m64') # x86_64 ABI (optional)
have_type('__m128') # x86_64 ABI (optional)
have_type('__float80') # gcc x86
create_makefile('rbconfig/sizeof')

21
template/sizes.c.tmpl
View file

@ -6,13 +6,25 @@ class String
strip.upcase.tr_s("^A-Z0-9_*", "_").tr_s("*", "P")
end
end
headers = Hash.new {[]}
sizes = {}
types = ARGF.grep(/^\s*RUBY_CHECK_SIZEOF\((\w[^\[\],#]*)[^#]*\)|
^\s*RUBY_DEFINT\((\w[^\[\],#]*)[^#]*\)|
^\s*check_sizeof\('(.+?)'/x) {$+}
^\s*have_type\('(.+?)'(?:,\s*%w\[(.+)\])?\)/x) do
sizes[type = $3] = true
hdrs = $4 and hdrs.split.each {|h| headers[h] <<= type}
type || $+
end
conditions = {
"long long" => 'defined(HAVE_TRUE_LONG_LONG)',
}
%>
% headers.each do |h, type|
#if <%= type.map {|t| "defined(HAVE_TYPE_#{t.tr_cpp})"}.join(' || ') %>
# include <<%= h %>>
#endif
% end
void
Init_sizeof(void)
{
@ -20,8 +32,15 @@ Init_sizeof(void)
rb_define_const(rb_define_module("RbConfig"), "SIZEOF", s);
#define DEFINE(type, size) rb_hash_aset(s, rb_str_new_cstr(#type), INT2FIX(SIZEOF_##size))
#define DEFINE_SIZE(type) rb_hash_aset(s, rb_str_new_cstr(#type), INT2FIX(sizeof(type)))
% types.each do |type|
% if sizes[type]
#ifdef HAVE_TYPE_<%= type.tr_cpp %>
DEFINE_SIZE(<%= type %>);
#endif
% next
% end
% cond = conditions[type]
#if SIZEOF_<%= type.tr_cpp %> != 0<%= " && #{cond}" if cond %>
DEFINE(<%= type %>, <%= type.tr_cpp %>);