[sr-dev] Compile warnings for Kamailio core under Ubuntu 13.10

GCC version is 4.8.1 I was compiling Git master on my laptop for some testing and saw these warnings: cfg/cfg_ctx.c: In function ‘cfg_set_now’: cfg/cfg_ctx.c:490:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] group_inst = (cfg_group_inst_t *)translate_pointer((char *)new_array, ^ cfg/cfg_ctx.c:494:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] CFG_GROUP_META(block, group)->array = new_array; ^ cfg/cfg_ctx.c:564:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] if (block && (CFG_GROUP_META(block, group)->array != CFG_GROUP_META(*cfg_global, group)->array)) ^ cfg/cfg_ctx.c:564:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] cfg/cfg_ctx.c:565:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] new_array = CFG_GROUP_META(block, group)->array; ^ cfg/cfg_ctx.c:584:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[i] = CFG_GROUP_META(*cfg_global, group)->array; ^ cfg/cfg_ctx.c: In function ‘cfg_commit’: cfg/cfg_ctx.c:1125:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] if (!(CFG_GROUP_META(block, group)->array = ^ cfg/cfg_ctx.c:1133:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[replaced_num] = CFG_GROUP_META(*cfg_global, group)->array; ^ cfg/cfg_ctx.c:1185:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] && (CFG_GROUP_META(block, changed->group)->array != CFG_GROUP_META(*cfg_global, changed->group)->array) ^ cfg/cfg_ctx.c:1185:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] cfg/cfg_ctx.c:1190:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[replaced_num] = CFG_GROUP_META(*cfg_global, group)->array; ^ cfg/cfg_ctx.c:1225:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] if (CFG_GROUP_META(block, group)->array ^ cfg/cfg_ctx.c:1226:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] && (CFG_GROUP_META(block, group)->array != CFG_GROUP_META(*cfg_global, group)->array) ^ cfg/cfg_ctx.c:1226:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] cfg/cfg_ctx.c:1228:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] shm_free(CFG_GROUP_META(block, group)->array);cfg/cfg_ctx.c: In function ‘cfg_set_now’: cfg/cfg_ctx.c:490:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] group_inst = (cfg_group_inst_t *)translate_pointer((char *)new_array, ^ cfg/cfg_ctx.c:494:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] CFG_GROUP_META(block, group)->array = new_array; ^ cfg/cfg_ctx.c:564:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] if (block && (CFG_GROUP_META(block, group)->array != CFG_GROUP_META(*cfg_global, group)->array)) ^ cfg/cfg_ctx.c:564:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] cfg/cfg_ctx.c:565:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] new_array = CFG_GROUP_META(block, group)->array; ^ cfg/cfg_ctx.c:584:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[i] = CFG_GROUP_META(*cfg_global, group)->array; ^ cfg/cfg_ctx.c: In function ‘cfg_commit’: cfg/cfg_ctx.c:1125:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] if (!(CFG_GROUP_META(block, group)->array = ^ cfg/cfg_ctx.c:1133:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[replaced_num] = CFG_GROUP_META(*cfg_global, group)->array; ^ cfg/cfg_ctx.c:1185:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] && (CFG_GROUP_META(block, changed->group)->array != CFG_GROUP_META(*cfg_global, changed->group)->array) ^ cfg/cfg_ctx.c:1185:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] cfg/cfg_ctx.c:1190:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[replaced_num] = CFG_GROUP_META(*cfg_global, group)->array; ^ cfg/cfg_ctx.c:1225:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] if (CFG_GROUP_META(block, group)->array ^ cfg/cfg_ctx.c:1226:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] && (CFG_GROUP_META(block, group)->array != CFG_GROUP_META(*cfg_global, group)->array) ^ cfg/cfg_ctx.c:1226:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] cfg/cfg_ctx.c:1228:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] shm_free(CFG_GROUP_META(block, group)->array); ^ cfg/cfg_ctx.c: In function ‘cfg_add_group_inst’: cfg/cfg_ctx.c:1582:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] CFG_GROUP_META(block, group)->array = new_array; ^ cfg/cfg_ctx.c:1583:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] CFG_GROUP_META(block, group)->num++; ^ cfg/cfg_ctx.c:1585:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] if (CFG_GROUP_META(*cfg_global, group)->array) { ^ cfg/cfg_ctx.c:1594:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[0] = CFG_GROUP_META(*cfg_global, group)->array; ^ cfg/cfg_ctx.c: In function ‘cfg_del_group_inst’: cfg/cfg_ctx.c:1678:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] CFG_GROUP_META(block, group)->array = new_array; ^ cfg/cfg_ctx.c:1679:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] CFG_GROUP_META(block, group)->num--; ^ cfg/cfg_ctx.c:1681:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] if (CFG_GROUP_META(*cfg_global, group)->array) { ^ cfg/cfg_ctx.c:1692:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] && (*(char **)(group_inst->vars + var->offset) != NULL) ^ cfg/cfg_ctx.c:1710:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] && (*(char **)(group_inst->vars + var->offset) != NULL) ^ cfg/cfg_ctx.c:1712:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[num] = *(char **)(group_inst->vars + var->offset); ^ cfg/cfg_ctx.c:1718:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[num] = CFG_GROUP_META(*cfg_global, group)->array; ^ ^ cfg/cfg_ctx.c: In function ‘cfg_add_group_inst’: cfg/cfg_ctx.c:1582:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] CFG_GROUP_META(block, group)->array = new_array; ^ cfg/cfg_ctx.c:1583:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] CFG_GROUP_META(block, group)->num++; ^ cfg/cfg_ctx.c:1585:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] if (CFG_GROUP_META(*cfg_global, group)->array) { ^ cfg/cfg_ctx.c:1594:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[0] = CFG_GROUP_META(*cfg_global, group)->array; ^ cfg/cfg_ctx.c: In function ‘cfg_del_group_inst’: cfg/cfg_ctx.c:1678:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] CFG_GROUP_META(block, group)->array = new_array; ^ cfg/cfg_ctx.c:1679:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] CFG_GROUP_META(block, group)->num--; ^ cfg/cfg_ctx.c:1681:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] if (CFG_GROUP_META(*cfg_global, group)->array) { ^ cfg/cfg_ctx.c:1692:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] && (*(char **)(group_inst->vars + var->offset) != NULL) ^ cfg/cfg_ctx.c:1710:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] && (*(char **)(group_inst->vars + var->offset) != NULL) ^ cfg/cfg_ctx.c:1712:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[num] = *(char **)(group_inst->vars + var->offset); ^ cfg/cfg_ctx.c:1718:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] replaced[num] = CFG_GROUP_META(*cfg_global, group)->array; ^ Regards, Peter -- Peter Dunkley Technical Director Crocodile RCS Ltd