1 /* Unwinder test program. 2 3 Copyright 2006-2015 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 #ifdef SYMBOL_PREFIX 21 #define SYMBOL(str) SYMBOL_PREFIX #str 22 #else 23 #define SYMBOL(str) #str 24 #endif 25 26 void gdb2029 (void); 27 28 int 29 main (void) 30 { 31 gdb2029 (); 32 optimized_1 (); 33 return 0; 34 } 35 36 void 37 optimized_1_marker (void) 38 { 39 } 40 41 void 42 gdb2029_marker (void) 43 { 44 } 45 46 /* A typical PIC prologue from GCC. */ 47 48 asm(".text\n" 49 " .p2align 3\n" 50 SYMBOL (gdb2029) ":\n" 51 " stwu %r1, -32(%r1)\n" 52 " mflr %r0\n" 53 " bcl- 20,31,.+4\n" 54 " stw %r30, 24(%r1)\n" 55 " mflr %r30\n" 56 " stw %r0, 36(%r1)\n" 57 " bl gdb2029_marker\n" 58 " lwz %r0, 36(%r1)\n" 59 " lwz %r30, 24(%r1)\n" 60 " mtlr %r0\n" 61 " addi %r1, %r1, 32\n" 62 " blr"); 63 64 /* A heavily scheduled prologue. */ 65 asm(".text\n" 66 " .p2align 3\n" 67 SYMBOL (optimized_1) ":\n" 68 " stwu %r1,-32(%r1)\n" 69 " lis %r9,-16342\n" 70 " lis %r11,-16342\n" 71 " mflr %r0\n" 72 " addi %r11,%r11,3776\n" 73 " stmw %r27,12(%r1)\n" 74 " addi %r31,%r9,3152\n" 75 " cmplw %cr7,%r31,%r11\n" 76 " stw %r0,36(%r1)\n" 77 " mr %r30,%r3\n" 78 " bl optimized_1_marker\n" 79 " lwz %r0,36(%r1)\n" 80 " lmw %r27,12(%r1)\n" 81 " addi %r1,%r1,32\n" 82 " blr"); 83