lang/ruby21: fix setjmp clobbered variables

PR:		206108
Submitted by:	dim

5 files changed, 90 insertions, 0 deletions

diff --git a/lang/ruby21/files/patch-eval.c b/lang/ruby21/files/patch-eval.c
new file mode 100644
index 000000000000..1ba8a8b17e9b
--- /dev/null
+++ b/lang/ruby21/files/patch-eval.c
@@ -0,0 +1,20 @@
+--- eval.c.orig	2015-01-21 17:09:59.000000000 +0100
++++ eval.c	2016-01-09 22:22:34.009232000 +0100
+@@ -743,7 +743,7 @@ rb_rescue2(VALUE (* b_proc) (ANYARGS), V
+ {
+     int state;
+     rb_thread_t *th = GET_THREAD();
+-    rb_control_frame_t *cfp = th->cfp;
++    rb_control_frame_t *volatile cfp = th->cfp;
+     volatile VALUE result = Qfalse;
+     volatile VALUE e_info = th->errinfo;
+     va_list args;
+@@ -809,7 +809,7 @@ rb_protect(VALUE (* proc) (VALUE), VALUE
+     volatile VALUE result = Qnil;
+     volatile int status;
+     rb_thread_t *th = GET_THREAD();
+-    rb_control_frame_t *cfp = th->cfp;
++    rb_control_frame_t *volatile cfp = th->cfp;
+     struct rb_vm_protect_tag protect_tag;
+     rb_jmpbuf_t org_jmpbuf;
+ 
diff --git a/lang/ruby21/files/patch-eval_error.c b/lang/ruby21/files/patch-eval_error.c
new file mode 100644
index 000000000000..6c64e6d450e9
--- /dev/null
+++ b/lang/ruby21/files/patch-eval_error.c
@@ -0,0 +1,15 @@
+--- eval_error.c.orig	2013-06-24 15:03:35.000000000 +0200
++++ eval_error.c	2016-01-10 01:00:43.200335000 +0100
+@@ -80,9 +80,9 @@ static void
+ error_print(void)
+ {
+     volatile VALUE errat = Qundef;
+-    rb_thread_t *th = GET_THREAD();
+-    VALUE errinfo = th->errinfo;
+-    int raised_flag = th->raised_flag;
++    rb_thread_t *volatile th = GET_THREAD();
++    volatile VALUE errinfo = th->errinfo;
++    volatile int raised_flag = th->raised_flag;
+     volatile VALUE eclass = Qundef, e = Qundef;
+     const char *volatile einfo;
+     volatile long elen;
diff --git a/lang/ruby21/files/patch-thread.c b/lang/ruby21/files/patch-thread.c
new file mode 100644
index 000000000000..93441f873fb5
--- /dev/null
+++ b/lang/ruby21/files/patch-thread.c
@@ -0,0 +1,13 @@
+--- thread.c.orig	2015-03-09 18:40:36.000000000 +0100
++++ thread.c	2016-01-10 18:50:57.451040000 +0100
+@@ -420,8 +420,8 @@ rb_threadptr_unlock_all_locking_mutexes(
+ void
+ rb_thread_terminate_all(void)
+ {
+-    rb_thread_t *th = GET_THREAD(); /* main thread */
+-    rb_vm_t *vm = th->vm;
++    rb_thread_t *volatile th = GET_THREAD(); /* main thread */
++    rb_vm_t *volatile vm = th->vm;
+ 
+     if (vm->main_thread != th) {
+ 	rb_bug("rb_thread_terminate_all: called by child thread (%p, %p)",
diff --git a/lang/ruby21/files/patch-vm_eval.c b/lang/ruby21/files/patch-vm_eval.c
new file mode 100644
index 000000000000..d5a49d0027a3
--- /dev/null
+++ b/lang/ruby21/files/patch-vm_eval.c
@@ -0,0 +1,31 @@
+--- vm_eval.c.orig	2015-07-03 10:55:40.000000000 +0200
++++ vm_eval.c	2016-01-10 18:53:23.030473000 +0100
+@@ -1062,7 +1062,7 @@ rb_iterate(VALUE (* it_proc) (VALUE), VA
+     int state;
+     volatile VALUE retval = Qnil;
+     NODE *node = NEW_IFUNC(bl_proc, data2);
+-    rb_thread_t *th = GET_THREAD();
++    rb_thread_t *volatile th = GET_THREAD();
+     rb_control_frame_t *volatile cfp = th->cfp;
+ 
+     node->nd_aid = rb_frame_this_func();
+@@ -1190,7 +1190,7 @@ eval_string_with_cref(VALUE self, VALUE 
+     int state;
+     VALUE result = Qundef;
+     VALUE envval;
+-    rb_thread_t *th = GET_THREAD();
++    rb_thread_t *volatile th = GET_THREAD();
+     rb_env_t *env = NULL;
+     rb_block_t block, *base_block;
+     volatile int parse_in_eval;
+@@ -1843,8 +1843,8 @@ rb_catch_protect(VALUE t, rb_block_call_
+ {
+     int state;
+     volatile VALUE val = Qnil;		/* OK */
+-    rb_thread_t *th = GET_THREAD();
+-    rb_control_frame_t *saved_cfp = th->cfp;
++    rb_thread_t *volatile th = GET_THREAD();
++    rb_control_frame_t *volatile saved_cfp = th->cfp;
+     volatile VALUE tag = t;
+ 
+     TH_PUSH_TAG(th);
diff --git a/lang/ruby21/files/patch-vm_trace.c b/lang/ruby21/files/patch-vm_trace.c
new file mode 100644
index 000000000000..7de08ebc438f
--- /dev/null
+++ b/lang/ruby21/files/patch-vm_trace.c
@@ -0,0 +1,11 @@
+--- vm_trace.c.orig	2015-11-18 12:26:40.000000000 +0100
++++ vm_trace.c	2016-01-10 18:54:08.421021000 +0100
+@@ -392,7 +392,7 @@ rb_suppress_tracing(VALUE (*func)(VALUE)
+     volatile int raised;
+     volatile int outer_state;
+     VALUE result = Qnil;
+-    rb_thread_t *th = GET_THREAD();
++    rb_thread_t *volatile th = GET_THREAD();
+     int state;
+     const int tracing = th->trace_arg ? 1 : 0;
+     rb_trace_arg_t dummy_trace_arg;