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src/os/posix/vm/os_posix.cpp

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rev 12346 : 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

*** 1094,1103 **** --- 1094,1105 ---- size_t stack_size = 0; size_t guard_size = 0; int detachstate = 0; pthread_attr_getstacksize(attr, &stack_size); pthread_attr_getguardsize(attr, &guard_size); + // Work around linux NPTL implementation error, see also os::create_thread() in os_linux.cpp. + LINUX_ONLY(stack_size -= guard_size); pthread_attr_getdetachstate(attr, &detachstate); jio_snprintf(buf, buflen, "stacksize: " SIZE_FORMAT "k, guardsize: " SIZE_FORMAT "k, %s", stack_size / 1024, guard_size / 1024, (detachstate == PTHREAD_CREATE_DETACHED ? "detached" : "joinable")); return buf;
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