1*6a817834SRobert Mustacchi /* 2*6a817834SRobert Mustacchi * This file and its contents are supplied under the terms of the 3*6a817834SRobert Mustacchi * Common Development and Distribution License ("CDDL"), version 1.0. 4*6a817834SRobert Mustacchi * You may only use this file in accordance with the terms of version 5*6a817834SRobert Mustacchi * 1.0 of the CDDL. 6*6a817834SRobert Mustacchi * 7*6a817834SRobert Mustacchi * A full copy of the text of the CDDL should have accompanied this 8*6a817834SRobert Mustacchi * source. A copy of the CDDL is also available via the Internet at 9*6a817834SRobert Mustacchi * http://www.illumos.org/license/CDDL. 10*6a817834SRobert Mustacchi */ 11*6a817834SRobert Mustacchi 12*6a817834SRobert Mustacchi /* 13*6a817834SRobert Mustacchi * Copyright 2020 Oxide Computer Company 14*6a817834SRobert Mustacchi */ 15*6a817834SRobert Mustacchi 16*6a817834SRobert Mustacchi #include <sys/ccompile.h> 17*6a817834SRobert Mustacchi 18*6a817834SRobert Mustacchi /* 19*6a817834SRobert Mustacchi * To impement gcc's stack protector library, the compiler emits a function call 20*6a817834SRobert Mustacchi * to a symbol which can be called absolutely. As a result, to make that happen, 21*6a817834SRobert Mustacchi * we mimic what gcc does with libssp and create an archive file that can be 22*6a817834SRobert Mustacchi * used in the specs file to pull this in directly. This is a bit of a pain, but 23*6a817834SRobert Mustacchi * that's the best we can do given the architecture that we have. 24*6a817834SRobert Mustacchi * 25*6a817834SRobert Mustacchi * Warning: This is a static archive. Nothing beyond the call for 26*6a817834SRobert Mustacchi * __stack_chk_fail_local and calls to committed interfaces should be here. As 27*6a817834SRobert Mustacchi * this implementation will be linked into programs, one should exercise care to 28*6a817834SRobert Mustacchi * make sure we don't expose anything else here. 29*6a817834SRobert Mustacchi */ 30*6a817834SRobert Mustacchi 31*6a817834SRobert Mustacchi extern void __stack_chk_fail(void); 32*6a817834SRobert Mustacchi 33*6a817834SRobert Mustacchi void __HIDDEN __stack_chk_fail_local(void)34*6a817834SRobert Mustacchi__stack_chk_fail_local(void) 35*6a817834SRobert Mustacchi { 36*6a817834SRobert Mustacchi __stack_chk_fail(); 37*6a817834SRobert Mustacchi } 38