| thr_init.c (139023) | thr_init.c (141822) |
|---|---|
| 1/* 2 * Copyright (c) 2003 Daniel M. Eischen <deischen@freebsd.org> 3 * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 16 unchanged lines hidden (view full) --- 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * | 1/* 2 * Copyright (c) 2003 Daniel M. Eischen <deischen@freebsd.org> 3 * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 16 unchanged lines hidden (view full) --- 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * |
| 33 * $FreeBSD: head/lib/libkse/thread/thr_init.c 139023 2004-12-18 18:07:37Z deischen $ | 33 * $FreeBSD: head/lib/libkse/thread/thr_init.c 141822 2005-02-13 18:38:06Z deischen $ |
| 34 */ 35 36/* Allocate space for global thread variables here: */ 37#define GLOBAL_PTHREAD_PRIVATE 38 39#include "namespace.h" 40#include <sys/param.h> 41#include <sys/types.h> --- 290 unchanged lines hidden (view full) --- 332 * Set up the thread stack. 333 * 334 * Create a red zone below the main stack. All other stacks 335 * are constrained to a maximum size by the parameters 336 * passed to mmap(), but this stack is only limited by 337 * resource limits, so this stack needs an explicitly mapped 338 * red zone to protect the thread stack that is just beyond. 339 */ | 34 */ 35 36/* Allocate space for global thread variables here: */ 37#define GLOBAL_PTHREAD_PRIVATE 38 39#include "namespace.h" 40#include <sys/param.h> 41#include <sys/types.h> --- 290 unchanged lines hidden (view full) --- 332 * Set up the thread stack. 333 * 334 * Create a red zone below the main stack. All other stacks 335 * are constrained to a maximum size by the parameters 336 * passed to mmap(), but this stack is only limited by 337 * resource limits, so this stack needs an explicitly mapped 338 * red zone to protect the thread stack that is just beyond. 339 */ |
| 340 if (mmap((void *)_usrstack - THR_STACK_INITIAL - | 340 if (mmap((void *)_usrstack - _thr_stack_initial - |
| 341 _thr_guard_default, _thr_guard_default, 0, MAP_ANON, 342 -1, 0) == MAP_FAILED) 343 PANIC("Cannot allocate red zone for initial thread"); 344 345 /* 346 * Mark the stack as an application supplied stack so that it 347 * isn't deallocated. 348 * 349 * XXX - I'm not sure it would hurt anything to deallocate 350 * the main thread stack because deallocation doesn't 351 * actually free() it; it just puts it in the free 352 * stack queue for later reuse. 353 */ | 341 _thr_guard_default, _thr_guard_default, 0, MAP_ANON, 342 -1, 0) == MAP_FAILED) 343 PANIC("Cannot allocate red zone for initial thread"); 344 345 /* 346 * Mark the stack as an application supplied stack so that it 347 * isn't deallocated. 348 * 349 * XXX - I'm not sure it would hurt anything to deallocate 350 * the main thread stack because deallocation doesn't 351 * actually free() it; it just puts it in the free 352 * stack queue for later reuse. 353 */ |
| 354 thread->attr.stackaddr_attr = (void *)_usrstack - THR_STACK_INITIAL; 355 thread->attr.stacksize_attr = THR_STACK_INITIAL; | 354 thread->attr.stackaddr_attr = (void *)_usrstack - _thr_stack_initial; 355 thread->attr.stacksize_attr = _thr_stack_initial; |
| 356 thread->attr.guardsize_attr = _thr_guard_default; 357 thread->attr.flags |= THR_STACK_USER; 358 359 /* 360 * Write a magic value to the thread structure 361 * to help identify valid ones: 362 */ 363 thread->magic = THR_MAGIC; --- 58 unchanged lines hidden (view full) --- 422 len = sizeof (struct clockinfo); 423 if (sysctl(mib, 2, &clockinfo, &len, NULL, 0) == 0) 424 _clock_res_usec = clockinfo.tick; 425 else 426 _clock_res_usec = CLOCK_RES_USEC; 427 428 _thr_page_size = getpagesize(); 429 _thr_guard_default = _thr_page_size; | 356 thread->attr.guardsize_attr = _thr_guard_default; 357 thread->attr.flags |= THR_STACK_USER; 358 359 /* 360 * Write a magic value to the thread structure 361 * to help identify valid ones: 362 */ 363 thread->magic = THR_MAGIC; --- 58 unchanged lines hidden (view full) --- 422 len = sizeof (struct clockinfo); 423 if (sysctl(mib, 2, &clockinfo, &len, NULL, 0) == 0) 424 _clock_res_usec = clockinfo.tick; 425 else 426 _clock_res_usec = CLOCK_RES_USEC; 427 428 _thr_page_size = getpagesize(); 429 _thr_guard_default = _thr_page_size; |
| 430 if (sizeof(void *) == 8) { 431 _thr_stack_default = THR_STACK64_DEFAULT; 432 _thr_stack_initial = THR_STACK64_INITIAL; 433 } 434 else { 435 _thr_stack_default = THR_STACK32_DEFAULT; 436 _thr_stack_initial = THR_STACK32_INITIAL; 437 } |
|
| 430 init_once = 1; /* Don't do this again. */ 431 } else { 432 /* 433 * Destroy the locks before creating them. We don't 434 * know what state they are in so it is better to just 435 * recreate them. 436 */ 437 _lock_destroy(&_thread_signal_lock); --- 48 unchanged lines hidden --- | 438 init_once = 1; /* Don't do this again. */ 439 } else { 440 /* 441 * Destroy the locks before creating them. We don't 442 * know what state they are in so it is better to just 443 * recreate them. 444 */ 445 _lock_destroy(&_thread_signal_lock); --- 48 unchanged lines hidden --- |