src/os_cpu/bsd_zero/vm/os_bsd_zero.cpp

rev 12406 : 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, kvn

*** 308,318 ****
  #elif defined(__OpenBSD__)
    stack_t ss;
    int rslt = pthread_stackseg_np(pthread_self(), &ss);
  
    if (rslt != 0)
!     fatal("pthread_stackseg_np failed with err = " INT32_FORMAT, rslt);
  
    stack_top = (address) ss.ss_sp;
    stack_bytes  = ss.ss_size;
    stack_bottom = stack_top - stack_bytes;
  #else
--- 308,318 ----
  #elif defined(__OpenBSD__)
    stack_t ss;
    int rslt = pthread_stackseg_np(pthread_self(), &ss);
  
    if (rslt != 0)
!     fatal("pthread_stackseg_np failed with error = " INT32_FORMAT, rslt);
  
    stack_top = (address) ss.ss_sp;
    stack_bytes  = ss.ss_size;
    stack_bottom = stack_top - stack_bytes;
  #else
*** 320,335 ****
  
    int rslt = pthread_attr_init(&attr);
  
    // JVM needs to know exact stack location, abort if it fails
    if (rslt != 0)
!     fatal("pthread_attr_init failed with err = " INT32_FORMAT, rslt);
  
    rslt = pthread_attr_get_np(pthread_self(), &attr);
  
    if (rslt != 0)
!     fatal("pthread_attr_get_np failed with err = " INT32_FORMAT, rslt);
  
    if (pthread_attr_getstackaddr(&attr, (void **) &stack_bottom) != 0 ||
        pthread_attr_getstacksize(&attr, &stack_bytes) != 0) {
      fatal("Can not locate current stack attributes!");
    }
--- 320,335 ----
  
    int rslt = pthread_attr_init(&attr);
  
    // JVM needs to know exact stack location, abort if it fails
    if (rslt != 0)
!     fatal("pthread_attr_init failed with error = " INT32_FORMAT, rslt);
  
    rslt = pthread_attr_get_np(pthread_self(), &attr);
  
    if (rslt != 0)
!     fatal("pthread_attr_get_np failed with error = " INT32_FORMAT, rslt);
  
    if (pthread_attr_getstackaddr(&attr, (void **) &stack_bottom) != 0 ||
        pthread_attr_getstacksize(&attr, &stack_bytes) != 0) {
      fatal("Can not locate current stack attributes!");
    }