1*5d9d9091SRichard Lowe/* 2*5d9d9091SRichard Lowe * CDDL HEADER START 3*5d9d9091SRichard Lowe * 4*5d9d9091SRichard Lowe * The contents of this file are subject to the terms of the 5*5d9d9091SRichard Lowe * Common Development and Distribution License (the "License"). 6*5d9d9091SRichard Lowe * You may not use this file except in compliance with the License. 7*5d9d9091SRichard Lowe * 8*5d9d9091SRichard Lowe * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*5d9d9091SRichard Lowe * or http://www.opensolaris.org/os/licensing. 10*5d9d9091SRichard Lowe * See the License for the specific language governing permissions 11*5d9d9091SRichard Lowe * and limitations under the License. 12*5d9d9091SRichard Lowe * 13*5d9d9091SRichard Lowe * When distributing Covered Code, include this CDDL HEADER in each 14*5d9d9091SRichard Lowe * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*5d9d9091SRichard Lowe * If applicable, add the following below this CDDL HEADER, with the 16*5d9d9091SRichard Lowe * fields enclosed by brackets "[]" replaced with your own identifying 17*5d9d9091SRichard Lowe * information: Portions Copyright [yyyy] [name of copyright owner] 18*5d9d9091SRichard Lowe * 19*5d9d9091SRichard Lowe * CDDL HEADER END 20*5d9d9091SRichard Lowe */ 21*5d9d9091SRichard Lowe/* 22*5d9d9091SRichard Lowe * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 23*5d9d9091SRichard Lowe * Use is subject to license terms. 24*5d9d9091SRichard Lowe */ 25*5d9d9091SRichard Lowe 26*5d9d9091SRichard Lowe .file "unwind_frame.s" 27*5d9d9091SRichard Lowe 28*5d9d9091SRichard Lowe#ifdef _LIBCRUN_ 29*5d9d9091SRichard Lowe#define ENTRY(x) \ 30*5d9d9091SRichard Lowe .text; \ 31*5d9d9091SRichard Lowe .align 8; \ 32*5d9d9091SRichard Lowe .globl x; \ 33*5d9d9091SRichard Lowe .type x, @function; \ 34*5d9d9091SRichard Lowe x: 35*5d9d9091SRichard Lowe#define SET_SIZE(x) \ 36*5d9d9091SRichard Lowe .size x, .-x 37*5d9d9091SRichard Lowe#else 38*5d9d9091SRichard Lowe#include "SYS.h" 39*5d9d9091SRichard Lowe#endif 40*5d9d9091SRichard Lowe 41*5d9d9091SRichard Lowe/* 42*5d9d9091SRichard Lowe * ==================== 43*5d9d9091SRichard Lowe * _Unw_capture_regs() 44*5d9d9091SRichard Lowe * -------------------- 45*5d9d9091SRichard Lowe * 46*5d9d9091SRichard Lowe * Given foo()->ex_throw()->_Unwind_RaiseException()->_Unw_capture_regs() 47*5d9d9091SRichard Lowe * fills in a register array with FP and the preserved registers 48*5d9d9091SRichard Lowe */ 49*5d9d9091SRichard Lowe ENTRY(_Unw_capture_regs) 50*5d9d9091SRichard Lowe movq %rbx,24(%rdi) /* save preserved registers */ 51*5d9d9091SRichard Lowe movq %rbp,48(%rdi) 52*5d9d9091SRichard Lowe movq %r12,96(%rdi) 53*5d9d9091SRichard Lowe movq %r13,104(%rdi) 54*5d9d9091SRichard Lowe movq %r14,112(%rdi) 55*5d9d9091SRichard Lowe movq %r15,120(%rdi) 56*5d9d9091SRichard Lowe ret 57*5d9d9091SRichard Lowe SET_SIZE(_Unw_capture_regs) 58*5d9d9091SRichard Lowe 59*5d9d9091SRichard Lowe/* 60*5d9d9091SRichard Lowe * ==================== 61*5d9d9091SRichard Lowe * _Unw_jmp 62*5d9d9091SRichard Lowe * -------------------- 63*5d9d9091SRichard Lowe * 64*5d9d9091SRichard Lowe * _Unw_jmp is passed a pc and an array of register values. 65*5d9d9091SRichard Lowe */ 66*5d9d9091SRichard Lowe 67*5d9d9091SRichard Lowe ENTRY(_Unw_jmp) 68*5d9d9091SRichard Lowe movq %rdi,%r8 /* save arguments to this func */ 69*5d9d9091SRichard Lowe movq %rsi,%rax 70*5d9d9091SRichard Lowe movq 40(%rax),%rdi /* set handler parameters */ 71*5d9d9091SRichard Lowe movq 32(%rax),%rsi 72*5d9d9091SRichard Lowe movq 8(%rax),%rdx 73*5d9d9091SRichard Lowe movq 16(%rax),%rcx 74*5d9d9091SRichard Lowe movq 24(%rax),%rbx /* restore preserved registers */ 75*5d9d9091SRichard Lowe movq 96(%rax),%r12 76*5d9d9091SRichard Lowe movq 104(%rax),%r13 77*5d9d9091SRichard Lowe movq 112(%rax),%r14 78*5d9d9091SRichard Lowe movq 120(%rax),%r15 79*5d9d9091SRichard Lowe movq 48(%rax),%rbp 80*5d9d9091SRichard Lowe movq 56(%rax),%rsp 81*5d9d9091SRichard Lowe movq (%rax),%rax 82*5d9d9091SRichard Lowe jmp *%r8 /* branch to handler */ 83*5d9d9091SRichard Lowe SET_SIZE(_Unw_jmp) 84