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* cont.c (stackgrowdirection): removed duplicated code, use

Browse source 
STACK_UPPER macro instead.

* gc.h (STACK_DIR_UPPER): moved from thread_pthread.c.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27682 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2010-05-08 16:15:20 +00:00
parent ffde073b0c
commit 89cc2aef81
4 changed files with 32 additions and 71 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
Sun May 9 01:15:18 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* cont.c (stackgrowdirection): removed duplicated code, use
STACK_UPPER macro instead.
* gc.h (STACK_DIR_UPPER): moved from thread_pthread.c.
Sun May 9 00:35:56 2010 Yuki Sonoda (Yugui) <yugui@yugui.jp>
* test/dl/test_base.rb (libc_so, libm_so): supports solaris.

68
cont.c
View file

@ -45,9 +45,6 @@
#define PAGE_SIZE (pagesize)
#define PAGE_MASK (~(PAGE_SIZE - 1))
static long pagesize;
static long stackgrowdirection;
#define STACK_GROW_DOWNWARD 1
#define STACK_GROW_UPWARD 2
#define FIBER_MACHINE_STACK_ALLOCATION_SIZE (0x10000 / sizeof(VALUE))
#endif
@ -498,20 +495,10 @@ static void
fiber_set_stack_location(void)
{
rb_thread_t *th = GET_THREAD();
unsigned long ptr;
VALUE ptr;
SET_MACHINE_STACK_END((VALUE**)(&ptr));
switch (stackgrowdirection) {
case STACK_GROW_DOWNWARD:
th->machine_stack_start = (void*)((ptr & PAGE_MASK) + PAGE_SIZE);
break;
case STACK_GROW_UPWARD:
th->machine_stack_start = (void*)(ptr & PAGE_MASK);
break;
default:
rb_bug("fiber_get_stacck_location: should not be reached");
break;
}
SET_MACHINE_STACK_END(&ptr);
th->machine_stack_start = (void*)((ptr & PAGE_MASK) + STACK_UPPER(&ptr, 0, PAGE_SIZE));
}
static VOID CALLBACK
@ -539,26 +526,15 @@ fiber_machine_stack_alloc(size_t size)
}
}
else {
STACK_GROW_DIR_DETECTION;
ptr = (VALUE*)mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
if ((int)ptr == -1) {
if (ptr == (VALUE*)(SIGNED_VALUE)-1) {
rb_raise(rb_eFiberError, "can't alloc machine stack to fiber");
}
switch (stackgrowdirection) {
case STACK_GROW_DOWNWARD:
if (mprotect(ptr, PAGE_SIZE, PROT_READ | PROT_WRITE) < 0) {
rb_raise(rb_eFiberError, "mprotect failed");
}
break;
case STACK_GROW_UPWARD:
if (mprotect(ptr + (size - PAGE_SIZE) / sizeof(VALUE),
if (mprotect(ptr + STACK_DIR_UPPER((size - PAGE_SIZE) / sizeof(VALUE), 0),
PAGE_SIZE, PROT_READ | PROT_WRITE) < 0) {
rb_raise(rb_eFiberError, "mprotect failed");
}
break;
default:
rb_bug("fiber_machine_stack_alloc: should not be reached");
break;
}
}
return ptr;
@ -575,6 +551,7 @@ fiber_initialize_machine_stack_context(rb_fiber_t *fib, size_t size)
#else /* not WIN32 */
ucontext_t *context = &fib->context;
VALUE *ptr;
STACK_GROW_DIR_DETECTION;
getcontext(context);
ptr = fiber_machine_stack_alloc(size);
@ -582,17 +559,7 @@ fiber_initialize_machine_stack_context(rb_fiber_t *fib, size_t size)
context->uc_stack.ss_sp = ptr;
context->uc_stack.ss_size = size;
makecontext(context, rb_fiber_start, 0);
switch (stackgrowdirection) {
case STACK_GROW_DOWNWARD:
sth->machine_stack_start = ptr + size / sizeof(VALUE);
break;
case STACK_GROW_UPWARD:
sth->machine_stack_start = ptr;
break;
default:
rb_bug("fiber_initialize_stackcontext: should not be reached");
break;
}
sth->machine_stack_start = ptr + STACK_DIR_UPPER(0, size / sizeof(VALUE));
#endif
sth->machine_stack_maxsize = size;
@ -622,18 +589,13 @@ fiber_setcontext(rb_fiber_t *newfib, rb_fiber_t *oldfib)
/* save oldfib's machine stack */
if (oldfib->status != TERMINATED) {
SET_MACHINE_STACK_END(&th->machine_stack_end);
switch (stackgrowdirection) {
case STACK_GROW_DOWNWARD:
if (STACK_DIR_UPPER(0, 1)) {
oldfib->cont.machine_stack_size = th->machine_stack_start - th->machine_stack_end;
oldfib->cont.machine_stack = th->machine_stack_end;
break;
case STACK_GROW_UPWARD:
}
else {
oldfib->cont.machine_stack_size = th->machine_stack_end - th->machine_stack_start;
oldfib->cont.machine_stack = th->machine_stack_start;
break;
default:
rb_bug("fiber_get_stacck_location: should not be reached");
break;
}
}
/* exchange machine_stack_start between oldfib and newfib */
@ -1451,14 +1413,6 @@ Init_Cont(void)
pagesize = sysconf(_SC_PAGESIZE);
#endif
SET_MACHINE_STACK_END(&th->machine_stack_end);
if (th->machine_stack_start > th->machine_stack_end) {
/* stack grows downward */
stackgrowdirection = STACK_GROW_DOWNWARD;
}
else {
/* stack grows upward */
stackgrowdirection = STACK_GROW_UPWARD;
}
#endif
rb_cFiber = rb_define_class("Fiber", rb_cObject);

8
gc.h
View file

@ -74,4 +74,12 @@ int ruby_get_stack_grow_direction(volatile VALUE *addr);
# define STACK_UPPER(x, a, b) (stack_growup_p(x) ? a : b)
#endif
#if STACK_GROW_DIRECTION
#define STACK_GROW_DIR_DETECTION
#define STACK_DIR_UPPER(a,b) STACK_UPPER(0, a, b)
#else
#define STACK_GROW_DIR_DETECTION VALUE stack_grow_dir_detection
#define STACK_DIR_UPPER(a,b) STACK_UPPER(&stack_grow_dir_detection, a, b)
#endif
#endif /* RUBY_GC_H */

8
thread_pthread.c
View file

@ -185,14 +185,6 @@ native_thread_destroy(rb_thread_t *th)
#define USE_THREAD_CACHE 0
#if STACK_GROW_DIRECTION
#define STACK_GROW_DIR_DETECTION
#define STACK_DIR_UPPER(a,b) STACK_UPPER(0, a, b)
#else
#define STACK_GROW_DIR_DETECTION VALUE stack_grow_dir_detection
#define STACK_DIR_UPPER(a,b) STACK_UPPER(&stack_grow_dir_detection, a, b)
#endif
#if defined HAVE_PTHREAD_GETATTR_NP || defined HAVE_PTHREAD_ATTR_GET_NP
#define STACKADDR_AVAILABLE 1
#elif defined HAVE_PTHREAD_GET_STACKADDR_NP && defined HAVE_PTHREAD_GET_STACKSIZE_NP