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* cont.c (cont_restore_0): padding size doesn't need to be large

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if alloca is used.  suppress warnings.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@21612 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2009-01-17 02:11:38 +00:00
parent f09bcbf96e
commit 8ae8afa649
2 changed files with 17 additions and 4 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Sat Jan 17 11:12:37 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
* cont.c (cont_restore_0): padding size doesn't need to be large
if alloca is used. suppress warnings.
Sat Jan 17 11:12:21 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
* vm_dump.c (vm_stack_dump_each): initialized at declarations.

16
cont.c
View file

@ -403,7 +403,11 @@ static void
cont_restore_0(rb_context_t *cont, VALUE *addr_in_prev_frame)
{
if (cont->machine_stack_src) {
#ifdef HAVE_ALLOCA
#define STACK_PAD_SIZE 1
#else
#define STACK_PAD_SIZE 1024
#endif
VALUE space[STACK_PAD_SIZE];
#if !STACK_GROW_DIRECTION
@ -411,9 +415,11 @@ cont_restore_0(rb_context_t *cont, VALUE *addr_in_prev_frame)
/* Stack grows downward */
#endif
#if STACK_GROW_DIRECTION <= 0
if (&space[0] > cont->machine_stack_src) {
volatile VALUE *const end = cont->machine_stack_src;
if (&space[0] > end) {
# ifdef HAVE_ALLOCA
ALLOCA_N(VALUE, &space[0] - cont->machine_stack_src);
volatile VALUE *sp = ALLOCA_N(VALUE, &space[0] - end);
(void)sp;
# else
cont_restore_0(cont, &space[0]);
# endif
@ -425,9 +431,11 @@ cont_restore_0(rb_context_t *cont, VALUE *addr_in_prev_frame)
/* Stack grows upward */
#endif
#if STACK_GROW_DIRECTION >= 0
if (&space[STACK_PAD_SIZE] < cont->machine_stack_src + cont->machine_stack_size) {
volatile VALUE *const end = cont->machine_stack_src + cont->machine_stack_size;
if (&space[STACK_PAD_SIZE] < end) {
# ifdef HAVE_ALLOCA
ALLOCA_N(VALUE, cont->machine_stack_src + cont->machine_stack_size - &space[STACK_PAD_SIZE]);
volatile VALUE *sp = ALLOCA_N(VALUE, end - &space[STACK_PAD_SIZE]);
(void)sp;
# else
cont_restore_0(cont, &space[STACK_PAD_SIZE-1]);
# endif