1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2014-2023 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 <stddef.h> 19 #define SIZE 5 20 21 struct foo 22 { 23 int a; 24 }; 25 26 typedef struct bar 27 { 28 int x; 29 struct foo y; 30 } BAR; 31 32 void 33 vla_factory (int n) 34 { 35 struct vla_struct 36 { 37 int something; 38 int vla_field[n]; 39 }; 40 /* Define a typedef for a VLA structure. */ 41 typedef struct vla_struct vla_struct_typedef; 42 vla_struct_typedef vla_struct_object; 43 44 struct inner_vla_struct 45 { 46 int something; 47 int vla_field[n]; 48 int after; 49 } inner_vla_struct_object; 50 51 /* Define a structure which uses a typedef for the VLA field 52 to make sure that GDB creates the proper type for this field, 53 preventing a possible assertion failure (see gdb/21356). */ 54 struct vla_struct_typedef_struct_member 55 { 56 int something; 57 vla_struct_typedef vla_object; 58 } vla_struct_typedef_struct_member_object; 59 60 union vla_union 61 { 62 int vla_field[n]; 63 } vla_union_object; 64 65 /* Like vla_struct_typedef_struct_member but a union type. */ 66 union vla_struct_typedef_union_member 67 { 68 int something; 69 vla_struct_typedef vla_object; 70 } vla_struct_typedef_union_member_object; 71 int i; 72 73 vla_struct_object.something = n; 74 inner_vla_struct_object.something = n; 75 inner_vla_struct_object.after = n; 76 vla_struct_typedef_struct_member_object.something = n * 2; 77 vla_struct_typedef_struct_member_object.vla_object.something = n * 3; 78 vla_struct_typedef_union_member_object.vla_object.something = n + 1; 79 80 for (i = 0; i < n; i++) 81 { 82 vla_struct_object.vla_field[i] = i*2; 83 vla_union_object.vla_field[i] = i*2; 84 inner_vla_struct_object.vla_field[i] = i*2; 85 vla_struct_typedef_struct_member_object.vla_object.vla_field[i] 86 = i * 3; 87 vla_struct_typedef_union_member_object.vla_object.vla_field[i] 88 = i * 3 - 1; 89 } 90 91 size_t vla_struct_object_size 92 = sizeof(vla_struct_object); /* vlas_filled */ 93 size_t vla_union_object_size = sizeof(vla_union_object); 94 size_t inner_vla_struct_object_size = sizeof(inner_vla_struct_object); 95 96 return; /* break_end_of_vla_factory */ 97 } 98 99 int 100 main (void) 101 { 102 vla_factory(SIZE); 103 return 0; 104 } 105