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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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shyouhei 2010-10-25 07:57:51 +00:00
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@ -1,8 +1,8 @@
Mon Oct 25 16:38:07 2010 URABE Shyouhei <shyouhei@ruby-lang.org>
* signal.c (rb_atomic_t): GCC (of at least recent versions)
has ubiquitos support for atomic operations. On that
compiler a C program can isse a memory barrier using these
has ubiquitous support for atomic operations. On that
compiler a C program can issue a memory barrier using these
dedicated instructions. According to the GCC manual they
cargo culted this feature form the Itanium ABI so chances
are that other compilers could also support this feature.