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src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp
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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 : [mq]: compilerGuardFix.patch
*** 837,859 ****
}
////////////////////////////////////////////////////////////////////////////////
// thread stack
! #ifdef AMD64
! size_t os::Posix::_compiler_thread_min_stack_allowed = 64 * K;
! size_t os::Posix::_java_thread_min_stack_allowed = 64 * K;
size_t os::Posix::_vm_internal_thread_min_stack_allowed = 64 * K;
#else
- size_t os::Posix::_compiler_thread_min_stack_allowed = (48 DEBUG_ONLY(+ 4)) * K;
- size_t os::Posix::_java_thread_min_stack_allowed = (48 DEBUG_ONLY(+ 4)) * K;
size_t os::Posix::_vm_internal_thread_min_stack_allowed = (48 DEBUG_ONLY(+ 4)) * K;
#ifdef __GNUC__
#define GET_GS() ({int gs; __asm__ volatile("movw %%gs, %w0":"=q"(gs)); gs&0xffff;})
#endif
-
#endif // AMD64
// return default stack size for thr_type
size_t os::Posix::default_stack_size(os::ThreadType thr_type) {
// default stack size (compiler thread needs larger stack)
--- 837,860 ----
}
////////////////////////////////////////////////////////////////////////////////
// thread stack
! // Minimum usable stack sizes required to get to user code. Space for
! // HotSpot guard pages is added later.
! size_t os::Posix::_compiler_thread_min_stack_allowed = 48 * K;
! size_t os::Posix::_java_thread_min_stack_allowed = 48 * K;
! #ifdef _LP64
size_t os::Posix::_vm_internal_thread_min_stack_allowed = 64 * K;
#else
size_t os::Posix::_vm_internal_thread_min_stack_allowed = (48 DEBUG_ONLY(+ 4)) * K;
+ #endif // _LP64
+ #ifndef AMD64
#ifdef __GNUC__
#define GET_GS() ({int gs; __asm__ volatile("movw %%gs, %w0":"=q"(gs)); gs&0xffff;})
#endif
#endif // AMD64
// return default stack size for thr_type
size_t os::Posix::default_stack_size(os::ThreadType thr_type) {
// default stack size (compiler thread needs larger stack)
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