1 /* libunwind - a platform-independent unwind library 2 Copyright (C) 2003-2004 Hewlett-Packard Co 3 Contributed by David Mosberger-Tang <davidm (at) hpl.hp.com> 4 5 This file is part of libunwind. 6 7 Permission is hereby granted, free of charge, to any person obtaining 8 a copy of this software and associated documentation files (the 9 "Software"), to deal in the Software without restriction, including 10 without limitation the rights to use, copy, modify, merge, publish, 11 distribute, sublicense, and/or sell copies of the Software, and to 12 permit persons to whom the Software is furnished to do so, subject to 13 the following conditions: 14 15 The above copyright notice and this permission notice shall be 16 included in all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 21 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 25 26 #include "jmpbuf.h" 27 28 #define SIG_BLOCK 0 29 30 .align 32 31 32 .global __sigsetjmp 33 .global sigprocmask 34 35 .proc __sigsetjmp 36 37 __sigsetjmp: 38 .prologue 39 .save ar.pfs, r35 40 alloc loc1 = ar.pfs, 2, 3, 3, 0 41 add out2 = JB_MASK*8, in0 42 .save rp, loc0 43 mov loc0 = rp 44 mov out0 = SIG_BLOCK 45 .body 46 ;; 47 cmp.ne p6, p0 = in1, r0 48 mov out1 = r0 49 mov loc2 = ar.bsp 50 (p6) br.call.sptk.many rp = sigprocmask // sigjmp_buf[JB_MASK] = sigmask 51 ;; 52 53 add r16 = JB_MASK_SAVED*8, in0 54 st8 [in0] = sp, (JB_RP-JB_SP)*8 // sigjmp_buf[JB_SP] = sp 55 mov r8 = 0 56 ;; 57 st8 [in0] = loc0, (JB_BSP-JB_RP)*8 // sigjmp_buf[JB_RP] = rp 58 st8 [r16] = in1 // sigjmp_buf[JB_MASK_SAVED] = savemask 59 mov rp = loc0 60 ;; 61 st8 [in0] = loc2 // sigjmp_buf[JB_BSP] = bsp 62 mov.i ar.pfs = loc1 63 br.ret.sptk.many rp 64 65 .endp __sigsetjmp 66 #ifdef __linux__ 67 /* We do not need executable stack. */ 68 .section .note.GNU-stack,"",@progbits 69 #endif 70
