merge revision(s) r45542,r45543: [Backport ruby#9717]

	* gc.c (mark_current_machine_context): Call SET_STACK_END.
	  This reverts a hunk of r40703 by ko1.
	  This fixes [ruby-dev:48098] [Bug ruby#9717].


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@47229 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Author: nagachika

ChangeLog

@@ -1,3 +1,9 @@
+Thu Aug 21 01:44:46 2014  Tanaka Akira  <[email protected]>
+
+	* gc.c (mark_current_machine_context): Call SET_STACK_END.
+	  This reverts a hunk of r40703 by ko1.
+	  This fixes [ruby-dev:48098] [Bug #9717].
+
 Thu Aug 21 01:41:09 2014  Tanaka Akira  <[email protected]>
 
 	* lib/time.rb (Time.parse): [DOC] Fix an example in the documentation

gc.c

@@ -3478,6 +3478,10 @@ mark_current_machine_context(rb_objspace_t *objspace, rb_thread_t *th)
     /* This assumes that all registers are saved into the jmp_buf (and stack) */
     rb_setjmp(save_regs_gc_mark.j);
 
+    /* SET_STACK_END must be called in this function because
+     * the stack frame of this function may contain
+     * callee save registers and they should be marked. */
+    SET_STACK_END;
     GET_STACK_BOUNDS(stack_start, stack_end, 1);
 
     mark_locations_array(objspace, save_regs_gc_mark.v, numberof(save_regs_gc_mark.v));

version.h

@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.1.2"
 #define RUBY_RELEASE_DATE "2014-08-21"
-#define RUBY_PATCHLEVEL 204
+#define RUBY_PATCHLEVEL 205
 
 #define RUBY_RELEASE_YEAR 2014
 #define RUBY_RELEASE_MONTH 8