1/* Library support for -fsplit-stack. */ 2/* Copyright (C) 2009-2015 Free Software Foundation, Inc. 3 Contributed by Ian Lance Taylor <iant@google.com>. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify it under 8the terms of the GNU General Public License as published by the Free 9Software Foundation; either version 3, or (at your option) any later 10version. 11 12GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13WARRANTY; without even the implied warranty of MERCHANTABILITY or 14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15for more details. 16 17Under Section 7 of GPL version 3, you are granted additional 18permissions described in the GCC Runtime Library Exception, version 193.1, as published by the Free Software Foundation. 20 21You should have received a copy of the GNU General Public License and 22a copy of the GCC Runtime Library Exception along with this program; 23see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 24<http://www.gnu.org/licenses/>. */ 25 26/* This is a libgcc internal header file for functions shared between 27 generic-morestack.c and generic-morestack-thread.c. The latter 28 file is only used when linking with the pthread library. */ 29 30/* The stack segment structure, defined in generic-morestack.c. */ 31 32struct stack_segment; 33 34/* The list of stack segments for this thread. */ 35 36extern __thread struct stack_segment *__morestack_segments; 37 38/* Print the string MSG/LEN, the errno number ERR, and a newline on 39 stderr, without using printf. Then crash. */ 40 41extern void __morestack_fail (const char *msg, size_t len, int err) 42 __attribute__ ((noreturn, visibility ("hidden"))); 43 44/* Release stack segments. */ 45 46extern struct dynamic_allocation_blocks * 47 __morestack_release_segments (struct stack_segment **, int) 48 __attribute__ ((visibility ("hidden"))); 49 50/* Store the stack information in a processor dependent manner. */ 51 52extern void __stack_split_initialize (void) 53 __attribute__ ((visibility ("hidden"))); 54