1/* Copyright (C) 2000, 2001, 2003, 2005 Free Software Foundation, Inc. 2 Contributed by Jes Sorensen, <Jes.Sorensen@cern.ch> 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GCC is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING. If not, write to 18 the Free Software Foundation, 51 Franklin Street, Fifth Floor, 19 Boston, MA 02110-1301, USA. */ 20 21/* As a special exception, if you link this library with other files, 22 some of which are compiled with GCC, to produce an executable, 23 this library does not by itself cause the resulting executable 24 to be covered by the GNU General Public License. 25 This exception does not however invalidate any other reasons why 26 the executable file might be covered by the GNU General Public License. */ 27 28#include "auto-host.h" 29 30.section .ctors,"aw","progbits" 31 .align 8 32__CTOR_END__: 33 data8 0 34 35.section .dtors,"aw","progbits" 36 .align 8 37__DTOR_END__: 38 data8 0 39 40.section .jcr,"aw","progbits" 41 .align 8 42__JCR_END__: 43 data8 0 44 45#ifdef HAVE_INITFINI_ARRAY 46 .global __do_global_ctors_aux 47 .hidden __do_global_ctors_aux 48#else /* !HAVE_INITFINI_ARRAY */ 49/* 50 * Fragment of the ELF _init routine that invokes our dtor cleanup. 51 * 52 * We make the call by indirection, because in large programs the 53 * .fini and .init sections are not in range of the destination, and 54 * we cannot allow the linker to insert a stub at the end of this 55 * fragment of the _fini function. Further, Itanium does not implement 56 * the long branch instructions, and we do not wish every program to 57 * trap to the kernel for emulation. 58 * 59 * Note that we require __do_global_ctors_aux to preserve the GP, 60 * so that the next fragment in .fini gets the right value. 61 */ 62.section .init,"ax","progbits" 63 { .mlx 64 movl r2 = @pcrel(__do_global_ctors_aux - 16) 65 } 66 { .mii 67 mov r3 = ip 68 ;; 69 add r2 = r2, r3 70 ;; 71 } 72 { .mib 73 mov b6 = r2 74 br.call.sptk.many b0 = b6 75 ;; 76 } 77#endif /* !HAVE_INITFINI_ARRAY */ 78 79.text 80 .align 32 81 .proc __do_global_ctors_aux 82__do_global_ctors_aux: 83 .prologue 84 /* 85 for (loc0 = __CTOR_END__-1; *p != -1; --p) 86 (*p) (); 87 */ 88 .save ar.pfs, r34 89 alloc loc2 = ar.pfs, 0, 5, 0, 0 90 movl loc0 = @gprel(__CTOR_END__ - 8) 91 ;; 92 93 add loc0 = loc0, gp 94 ;; 95 ld8 loc3 = [loc0], -8 96 .save rp, loc1 97 mov loc1 = rp 98 .body 99 ;; 100 101 cmp.eq p6, p0 = -1, loc3 102 mov loc4 = gp 103(p6) br.cond.spnt.few .exit 104 105.loop: ld8 r15 = [loc3], 8 106 ;; 107 ld8 gp = [loc3] 108 mov b6 = r15 109 110 ld8 loc3 = [loc0], -8 111 nop 0 112 br.call.sptk.many rp = b6 113 ;; 114 115 cmp.ne p6, p0 = -1, loc3 116 nop 0 117(p6) br.cond.sptk.few .loop 118 119.exit: mov gp = loc3 120 mov rp = loc1 121 mov ar.pfs = loc2 122 123 br.ret.sptk.many rp 124 .endp __do_global_ctors_aux 125