1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright 2020 Oxide Computer Company 14 */ 15 16 #include <sys/ccompile.h> 17 18 /* 19 * To impement gcc's stack protector library, the compiler emits a function call 20 * to a symbol which can be called absolutely. As a result, to make that happen, 21 * we mimic what gcc does with libssp and create an archive file that can be 22 * used in the specs file to pull this in directly. This is a bit of a pain, but 23 * that's the best we can do given the architecture that we have. 24 * 25 * Warning: This is a static archive. Nothing beyond the call for 26 * __stack_chk_fail_local and calls to committed interfaces should be here. As 27 * this implementation will be linked into programs, one should exercise care to 28 * make sure we don't expose anything else here. 29 */ 30 31 extern void __stack_chk_fail(void); 32 33 void __HIDDEN 34 __stack_chk_fail_local(void) 35 { 36 __stack_chk_fail(); 37 } 38