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1 /* |
1 /* |
2 * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
778 //////////////////////////////////////////////////////////////////////////////// |
778 //////////////////////////////////////////////////////////////////////////////// |
779 // thread stack |
779 // thread stack |
780 |
780 |
781 #ifdef AMD64 |
781 #ifdef AMD64 |
782 size_t os::Bsd::min_stack_allowed = 64 * K; |
782 size_t os::Bsd::min_stack_allowed = 64 * K; |
783 |
|
784 // amd64: pthread on amd64 is always in floating stack mode |
|
785 bool os::Bsd::supports_variable_stack_size() { return true; } |
|
786 #else |
783 #else |
787 size_t os::Bsd::min_stack_allowed = (48 DEBUG_ONLY(+4))*K; |
784 size_t os::Bsd::min_stack_allowed = (48 DEBUG_ONLY(+4))*K; |
788 |
785 |
789 #ifdef __GNUC__ |
786 #ifdef __GNUC__ |
790 #define GET_GS() ({int gs; __asm__ volatile("movw %%gs, %w0":"=q"(gs)); gs&0xffff;}) |
787 #define GET_GS() ({int gs; __asm__ volatile("movw %%gs, %w0":"=q"(gs)); gs&0xffff;}) |
791 #endif |
788 #endif |
792 |
789 |
793 bool os::Bsd::supports_variable_stack_size() { return true; } |
|
794 #endif // AMD64 |
790 #endif // AMD64 |
795 |
791 |
796 // return default stack size for thr_type |
792 // return default stack size for thr_type |
797 size_t os::Bsd::default_stack_size(os::ThreadType thr_type) { |
793 size_t os::Bsd::default_stack_size(os::ThreadType thr_type) { |
798 // default stack size (compiler thread needs larger stack) |
794 // default stack size (compiler thread needs larger stack) |