1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2009-2019 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 #include <stdlib.h> 19 20 #define CONCAT1(a, b) CONCAT2(a, b) 21 #define CONCAT2(a, b) a ## b 22 23 #ifdef SYMBOL_PREFIX 24 # define SYMBOL1(str) CONCAT1(SYMBOL_PREFIX, str) 25 #else 26 # define SYMBOL1(str) str 27 #endif 28 29 #define STR1(s) #s 30 #define STR(s) STR1(s) 31 32 #define SYMBOL(str) STR(SYMBOL1(str)) 33 34 asm (".globl cu_text_start"); 35 asm ("cu_text_start:"); 36 37 int 38 main (void) 39 { 40 unsigned char var = 1; 41 42 if (var != 1) 43 abort (); 44 { 45 extern unsigned char var; 46 47 /* Do not rely on the `extern' DIE output by GCC (GCC PR debug/39563). */ 48 asm (".globl " SYMBOL(extern_block_start)); 49 asm (SYMBOL(extern_block_start) ":"); 50 if (var != 2) 51 abort (); 52 asm (".globl " SYMBOL(extern_block_end)); 53 asm (SYMBOL(extern_block_end) ":"); 54 } 55 56 return 0; 57 } 58 59 asm (".globl cu_text_end"); 60 asm ("cu_text_end:"); 61