src/os/posix/vm/os_posix.cpp

rev 12363 : 8169373: Work around linux NPTL stack guard error.
Summary: Also skip libc guard page for compiler thread, merge similar code on linux platforms, and streamline libc guard page handling on linuxs390, linuxppc, aixppc.
Reviewed-by: dholmes, dcubed
rev 12364 : imported patch compilerGuardFix.patch

*** 1109,1122 ****
  // the java system classes, including StackOverflowError - depends on page
  // size.  Add two 4K pages for compiler2 recursion in main thread.
  // Add in 4*BytesPerWord 4K pages to account for VM stack during
  // class initialization depending on 32 or 64 bit VM.
  jint os::Posix::set_minimum_stack_sizes() {
!   _java_thread_min_stack_allowed = MAX2(_java_thread_min_stack_allowed,
                                          JavaThread::stack_guard_zone_size() +
!                                         JavaThread::stack_shadow_zone_size() +
!                                         (4 * BytesPerWord COMPILER2_PRESENT(+ 2)) * 4 * K);
  
    _java_thread_min_stack_allowed = align_size_up(_java_thread_min_stack_allowed, vm_page_size());
  
    size_t stack_size_in_bytes = ThreadStackSize * K;
    if (stack_size_in_bytes != 0 &&
--- 1109,1121 ----
  // the java system classes, including StackOverflowError - depends on page
  // size.  Add two 4K pages for compiler2 recursion in main thread.
  // Add in 4*BytesPerWord 4K pages to account for VM stack during
  // class initialization depending on 32 or 64 bit VM.
  jint os::Posix::set_minimum_stack_sizes() {
!   _java_thread_min_stack_allowed = _java_thread_min_stack_allowed +
                                     JavaThread::stack_guard_zone_size() +
!                                    JavaThread::stack_shadow_zone_size();
  
    _java_thread_min_stack_allowed = align_size_up(_java_thread_min_stack_allowed, vm_page_size());
  
    size_t stack_size_in_bytes = ThreadStackSize * K;
    if (stack_size_in_bytes != 0 &&
*** 1148,1159 ****
    }
  #endif // SOLARIS
  
    // Make the stack size a multiple of the page size so that
    // the yellow/red zones can be guarded.
!   JavaThread::set_stack_size_at_create(round_to(stack_size_in_bytes,
!                                                 vm_page_size()));
  
    _compiler_thread_min_stack_allowed = align_size_up(_compiler_thread_min_stack_allowed, vm_page_size());
  
    stack_size_in_bytes = CompilerThreadStackSize * K;
    if (stack_size_in_bytes != 0 &&
--- 1147,1161 ----
    }
  #endif // SOLARIS
  
    // Make the stack size a multiple of the page size so that
    // the yellow/red zones can be guarded.
!   JavaThread::set_stack_size_at_create(round_to(stack_size_in_bytes, vm_page_size()));
! 
!   _compiler_thread_min_stack_allowed = _compiler_thread_min_stack_allowed +
!                                        JavaThread::stack_guard_zone_size() +
!                                        JavaThread::stack_shadow_zone_size();
  
    _compiler_thread_min_stack_allowed = align_size_up(_compiler_thread_min_stack_allowed, vm_page_size());
  
    stack_size_in_bytes = CompilerThreadStackSize * K;
    if (stack_size_in_bytes != 0 &&