ruby.git/eval_intern.h, branch v2_1_5

merge revision(s) r45503,r45504,r45508,r45509,r47275: [Backport #9692]

2014-08-25T15:03:42+00:00

	* configure.in (ac_cv_func___builtin_setjmp): gcc 4.9 disallows a
	  variable as the second argument of __builtin_longjmp().
	  [ruby-core:61800] [Bug #9692]

	* configure.in (ac_cv_func___builtin_setjmp): __builtin_longjmp() in
	  clang 5.1 uses `void**`, not `jmp_buf`.  [Bug #9692]

	* configure.in (ac_cv_func___builtin_setjmp): __builtin_longjmp()
	  in Apple LLVM 5.1 (LLVM 3.4svn) uses `void**`, not `jmp_buf`.
	  [Bug #9692]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@47276 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

merge revision(s) r45947,r45951: [Backport #9739] [Backport #9844]

2014-06-23T15:08:11+00:00

	* thread_win32.c (rb_w32_stack_overflow_handler): use Structured
	  Exception Handling by Addvectoredexceptionhandler() for machine
	  stack overflow on mingw.
	  This would be equivalent to the handling using __try and __exept
	  on mswin introduced by r43748.
	  Exception Handling by AddVectoredExceptionHandler() for machine
	  This would be equivalent to the handling using __try and __except


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@46522 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* eval_intern.h (SAVE_ROOT_JMPBUF): workaround for the failure of

2013-11-21T06:33:41+00:00

  test/ruby/test_exception.rb on Windows.
  wrap by __try and __exception statements on mswin to raise SIGSEGV
  when EXCEPTION_STACK_OVERFLOW is occurred, because MSVCRT doesn't
  handle the exception.
  however, (1) mingw-gcc doesn't support __try and __exception
  statements, and (2) we cannot retry SystemStackError after this
  change yet (maybe crashed) because SEH and longjmp() are too
  uncongenial.

* signal.c (check_stack_overflow, CHECK_STACK_OVERFLOW): now defined on
  Windows, too.

* thread_win32.c (ruby_stack_overflowed_p): ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43748 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

eval_jump.c: reuse same tag

2013-11-19T17:01:10+00:00

* eval_jump.c (rb_exec_end_proc): reduce number of pushing/popping
  and reuse same tag.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43730 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

eval_intern.h: refine stack overflow detection

2013-11-18T13:47:56+00:00

* eval_intern.h (TH_PUSH_TAG, TH_EXEC_TAG): refine stack overflow
  detection.  chain local tag after setjmp() successed on it, because
  calling setjmp() also can overflow the stack.
  [ruby-dev:47804] [Bug #9109]
* vm_eval.c (rb_catch_obj): now th->tag points previous tag until
  TH_EXEC_TAG().


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43707 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

eval_intern.h: rename prefix

2013-11-05T07:56:51+00:00

* eval_intern.h (rb_threadptr_tag_state, rb_threadptr_tag_jump):
  rename prefix ruby as rb, same as other rb_threadptr functions.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43536 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

eval_intern.h: avoid undefined behavior of setjmp

2013-11-04T01:08:21+00:00

* eval_intern.h (TH_EXEC_TAG, TH_JUMP_TAG): get rid of undefined
  behavior of setjmp() in rhs of assignment expression.
  [ISO/IEC 9899:1999] 7.13.1.1

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43522 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

vm_core.h: move jmpbuf between tag and prev

2013-05-18T06:49:19+00:00

* vm_core.h (rb_vm_tag): move jmpbuf between tag and prev so ensure to
  be accessible.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40806 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

eval_intern.h: jmpbuf must be accessible

2013-05-17T02:07:00+00:00

* eval_intern.h (TH_PUSH_TAG): ensure jmpbuf to be accessible before
  pushing tag to get rid of unaccessible tag by stack overflow.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40791 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* configure.in: Check mblen().

2013-04-24T12:52:26+00:00

* eval_intern.h (CharNext): Don't use mblen() is not available.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40442 b2dd03c8-39d4-4d8f-98ff-823fe69b080e