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* thread.c: disabled _FORTIFY_SOURCE for avoid to hit glibc bug.

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[Bug #8080] [ruby-core:53349]
* test/ruby/test_io.rb (TestIO#test_io_select_with_many_files):
  test for the above.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39775 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kosaki 2013-03-16 05:07:28 +00:00
parent c824d47ebc
commit 92b367e069
3 changed files with 46 additions and 1 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
Fri Mar 15 14:57:16 2013 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* thread.c: disabled _FORTIFY_SOURCE for avoid to hit glibc bug.
[Bug #8080] [ruby-core:53349]
* test/ruby/test_io.rb (TestIO#test_io_select_with_many_files):
test for the above.
Wed Mar 13 15:16:35 2013 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* include/ruby/missing.h (__syscall): moved to...

27
test/ruby/test_io.rb
View file

@ -2629,5 +2629,30 @@ End
s.puts(c.new)
assert_equal("[...]\n", s.string, bug5986)
end
end
def test_io_select_with_many_files
bug8080 = '[ruby-core:53349]'
assert_normal_exit %q{
require "tempfile"
# try to raise RLIM_NOFILE to >FD_SETSIZE
# Unfortunately, ruby export FD_SETSIZE. then we assume it's 1024.
fd_setsize = 1024
begin
Process.setrlimit(Process::RLIMIT_NOFILE, fd_setsize+10)
rescue =>e
# Process::RLIMIT_NOFILE couldn't be raised. skip the test
exit 0
end
tempfiles = []
(0..fd_setsize+1).map {|i|
tempfiles << Tempfile.open("test_io_select_with_many_files")
}
IO.select(tempfiles)
}, bug8080
end
end

13
thread.c
View file

@ -42,6 +42,19 @@
*/
/*
* FD_SET, FD_CLR and FD_ISSET have a small sanity check when using glibc
* 2.15 or later and set _FORTIFY_SOURCE > 0.
* However, the implementation is wrong. Even though Linux's select(2)
* support large fd size (>FD_SETSIZE), it wrongly assume fd is always
* less than FD_SETSIZE (i.e. 1024). And then when enabling HAVE_RB_FD_INIT,
* it doesn't work correctly and makes program abort. Therefore we need to
* disable FORTY_SOURCE until glibc fixes it.
*/
#undef _FORTIFY_SOURCE
#undef __USE_FORTIFY_LEVEL
#define __USE_FORTIFY_LEVEL 0
/* for model 2 */
#include "eval_intern.h"