510 static int convert_variable(Dwarf_Die *vr_die, struct probe_finder *pf)  in convert_variable()  argument
518 	ret = convert_variable_location(vr_die, pf->addr, pf->fb_ops,  in convert_variable()
519 					&pf->sp_die, pf->tvar);  in convert_variable()
522 		       " Perhaps, it has been optimized out.\n", pf->pvar->var);  in convert_variable()
525 	else if (ret == 0 && pf->pvar->field) {  in convert_variable()
526 		ret = convert_variable_fields(vr_die, pf->pvar->var,  in convert_variable()
527 					      pf->pvar->field, &pf->tvar->ref,  in convert_variable()
532 		ret = convert_variable_type(vr_die, pf->tvar, pf->pvar->type);  in convert_variable()
538 static int find_variable(Dwarf_Die *sc_die, struct probe_finder *pf)  in find_variable()  argument
544 	if (!is_c_varname(pf->pvar->var)) {  in find_variable()
546 		pf->tvar->value = strdup(pf->pvar->var);  in find_variable()
547 		if (pf->tvar->value == NULL)  in find_variable()
549 		if (pf->pvar->type) {  in find_variable()
550 			pf->tvar->type = strdup(pf->pvar->type);  in find_variable()
551 			if (pf->tvar->type == NULL)  in find_variable()
554 		if (pf->pvar->name) {  in find_variable()
555 			pf->tvar->name = strdup(pf->pvar->name);  in find_variable()
556 			if (pf->tvar->name == NULL)  in find_variable()
559 			pf->tvar->name = NULL;  in find_variable()
563 	if (pf->pvar->name)  in find_variable()
564 		pf->tvar->name = strdup(pf->pvar->name);  in find_variable()
566 		ret = synthesize_perf_probe_arg(pf->pvar, buf, 32);  in find_variable()
572 		pf->tvar->name = strdup(buf);  in find_variable()
574 	if (pf->tvar->name == NULL)  in find_variable()
577 	pr_debug("Searching '%s' variable in context.\n", pf->pvar->var);  in find_variable()
579 	if (!die_find_variable_at(sc_die, pf->pvar->var, pf->addr, &vr_die)) {  in find_variable()
581 		if (!die_find_variable_at(&pf->cu_die, pf->pvar->var,  in find_variable()
584 				   pf->pvar->var);  in find_variable()
589 		ret = convert_variable(&vr_die, pf);  in find_variable()
651 static int call_probe_finder(Dwarf_Die *sc_die, struct probe_finder *pf)  in call_probe_finder()  argument
664 		if (!die_find_realfunc(&pf->cu_die, pf->addr, &pf->sp_die)) {  in call_probe_finder()
670 		memcpy(&pf->sp_die, sc_die, sizeof(Dwarf_Die));  in call_probe_finder()
673 	dwarf_attr(&pf->sp_die, DW_AT_frame_base, &fb_attr);  in call_probe_finder()
674 	ret = dwarf_getlocation_addr(&fb_attr, pf->addr, &pf->fb_ops, &nops, 1);  in call_probe_finder()
676 		pf->fb_ops = NULL;  in call_probe_finder()
678 	} else if (nops == 1 && pf->fb_ops[0].atom == DW_OP_call_frame_cfa &&  in call_probe_finder()
679 		   pf->cfi != NULL) {  in call_probe_finder()
681 		if (dwarf_cfi_addrframe(pf->cfi, pf->addr, &frame) != 0 ||  in call_probe_finder()
682 		    dwarf_frame_cfa(frame, &pf->fb_ops, &nops) != 0) {  in call_probe_finder()
684 				   (uintmax_t)pf->addr);  in call_probe_finder()
691 	ret = pf->callback(sc_die, pf);  in call_probe_finder()
694 	pf->fb_ops = NULL;  in call_probe_finder()
741 static Dwarf_Die *find_best_scope(struct probe_finder *pf, Dwarf_Die *die_mem)  in find_best_scope()  argument
744 		.function = pf->pev->point.function,  in find_best_scope()
745 		.file = pf->fname,  in find_best_scope()
746 		.line = pf->lno,  in find_best_scope()
752 	cu_walk_functions_at(&pf->cu_die, pf->addr, find_best_scope_cb, &fsp);  in find_best_scope()
760 	struct probe_finder *pf = data;  in probe_point_line_walker()  local
764 	if (lineno != pf->lno || strtailcmp(fname, pf->fname) != 0)  in probe_point_line_walker()
767 	pf->addr = addr;  in probe_point_line_walker()
768 	sc_die = find_best_scope(pf, &die_mem);  in probe_point_line_walker()
774 	ret = call_probe_finder(sc_die, pf);  in probe_point_line_walker()
781 static int find_probe_point_by_line(struct probe_finder *pf)  in find_probe_point_by_line()  argument
783 	return die_walk_lines(&pf->cu_die, probe_point_line_walker, pf);  in find_probe_point_by_line()
829 	struct probe_finder *pf = data;  in probe_point_lazy_walker()  local
833 	if (!intlist__has_entry(pf->lcache, lineno) ||  in probe_point_lazy_walker()
834 	    strtailcmp(fname, pf->fname) != 0)  in probe_point_lazy_walker()
839 	pf->addr = addr;  in probe_point_lazy_walker()
840 	pf->lno = lineno;  in probe_point_lazy_walker()
841 	sc_die = find_best_scope(pf, &die_mem);  in probe_point_lazy_walker()
847 	ret = call_probe_finder(sc_die, pf);  in probe_point_lazy_walker()
857 static int find_probe_point_lazy(Dwarf_Die *sp_die, struct probe_finder *pf)  in find_probe_point_lazy()  argument
862 	if (intlist__empty(pf->lcache)) {  in find_probe_point_lazy()
865 		comp_dir = cu_get_comp_dir(&pf->cu_die);  in find_probe_point_lazy()
866 		ret = get_real_path(pf->fname, comp_dir, &fpath);  in find_probe_point_lazy()
873 		ret = find_lazy_match_lines(pf->lcache, fpath,  in find_probe_point_lazy()
874 					    pf->pev->point.lazy_line);  in find_probe_point_lazy()
880 	return die_walk_lines(sp_die, probe_point_lazy_walker, pf);  in find_probe_point_lazy()
885 	struct probe_finder *pf = data;  in probe_point_inline_cb()  local
886 	struct perf_probe_point *pp = &pf->pev->point;  in probe_point_inline_cb()
891 		ret = find_probe_point_lazy(in_die, pf);  in probe_point_inline_cb()
899 		pf->addr = addr;  in probe_point_inline_cb()
900 		pf->addr += pp->offset;  in probe_point_inline_cb()
902 			 (uintmax_t)pf->addr);  in probe_point_inline_cb()
904 		ret = call_probe_finder(in_die, pf);  in probe_point_inline_cb()
920 	struct probe_finder *pf = param->data;  in probe_point_search_cb()  local
921 	struct perf_probe_point *pp = &pf->pev->point;  in probe_point_search_cb()
932 	pf->fname = dwarf_decl_file(sp_die);  in probe_point_search_cb()
934 		dwarf_decl_line(sp_die, &pf->lno);  in probe_point_search_cb()
935 		pf->lno += pp->line;  in probe_point_search_cb()
936 		param->retval = find_probe_point_by_line(pf);  in probe_point_search_cb()
939 		dwarf_entrypc(sp_die, &pf->addr);  in probe_point_search_cb()
942 			param->retval = find_probe_point_lazy(sp_die, pf);  in probe_point_search_cb()
944 			pf->addr += pp->offset;  in probe_point_search_cb()
946 			param->retval = call_probe_finder(sp_die, pf);  in probe_point_search_cb()
951 					probe_point_inline_cb, (void *)pf);  in probe_point_search_cb()
956 static int find_probe_point_by_func(struct probe_finder *pf)  in find_probe_point_by_func()  argument
958 	struct dwarf_callback_param _param = {.data = (void *)pf,  in find_probe_point_by_func()
960 	dwarf_getfuncs(&pf->cu_die, probe_point_search_cb, &_param, 0);  in find_probe_point_by_func()
998 				  struct probe_finder *pf)  in debuginfo__find_probes()  argument
1000 	struct perf_probe_point *pp = &pf->pev->point;  in debuginfo__find_probes()
1021 		pf->cfi = dwarf_getcfi_elf(elf);  in debuginfo__find_probes()
1023 		pf->cfi = dwarf_getcfi(dbg->dbg);  in debuginfo__find_probes()
1028 	pf->lcache = intlist__new(NULL);  in debuginfo__find_probes()
1029 	if (!pf->lcache)  in debuginfo__find_probes()
1037 			.cu_die	  = &pf->cu_die,  in debuginfo__find_probes()
1038 			.sp_die	  = &pf->sp_die,  in debuginfo__find_probes()
1042 			.data = pf,  in debuginfo__find_probes()
1048 			ret = probe_point_search_cb(&pf->sp_die, &probe_param);  in debuginfo__find_probes()
1057 		diep = dwarf_offdie(dbg->dbg, off + cuhl, &pf->cu_die);  in debuginfo__find_probes()
1063 			pf->fname = cu_find_realpath(&pf->cu_die, pp->file);  in debuginfo__find_probes()
1065 			pf->fname = NULL;  in debuginfo__find_probes()
1067 		if (!pp->file || pf->fname) {  in debuginfo__find_probes()
1069 				ret = find_probe_point_by_func(pf);  in debuginfo__find_probes()
1071 				ret = find_probe_point_lazy(&pf->cu_die, pf);  in debuginfo__find_probes()
1073 				pf->lno = pp->line;  in debuginfo__find_probes()
1074 				ret = find_probe_point_by_line(pf);  in debuginfo__find_probes()
1083 	intlist__delete(pf->lcache);  in debuginfo__find_probes()
1084 	pf->lcache = NULL;  in debuginfo__find_probes()
1090 	struct probe_finder *pf;  member
1101 	struct probe_finder *pf = vf->pf;  in copy_variables_cb()  local
1107 		if (convert_variable_location(die_mem, vf->pf->addr,  in copy_variables_cb()
1108 					      vf->pf->fb_ops, &pf->sp_die,  in copy_variables_cb()
1120 	if (dwarf_haspc(die_mem, vf->pf->addr))  in copy_variables_cb()
1126 static int expand_probe_args(Dwarf_Die *sc_die, struct probe_finder *pf,  in expand_probe_args()  argument
1132 	struct local_vars_finder vf = {.pf = pf, .args = args,  in expand_probe_args()
1135 	for (i = 0; i < pf->pev->nargs; i++) {  in expand_probe_args()
1137 		if (strcmp(pf->pev->args[i].var, "$vars") == 0) {  in expand_probe_args()
1149 			args[n] = pf->pev->args[i];  in expand_probe_args()
1157 static int add_probe_trace_event(Dwarf_Die *sc_die, struct probe_finder *pf)  in add_probe_trace_event()  argument
1160 			container_of(pf, struct trace_event_finder, pf);  in add_probe_trace_event()
1174 	ret = convert_to_trace_point(&pf->sp_die, tf->mod, pf->addr,  in add_probe_trace_event()
1175 				     pf->pev->point.retprobe, &tev->point);  in add_probe_trace_event()
1187 	ret = expand_probe_args(sc_die, pf, args);  in add_probe_trace_event()
1200 		pf->pvar = &args[i];  in add_probe_trace_event()
1201 		pf->tvar = &tev->args[i];  in add_probe_trace_event()
1203 		ret = find_variable(sc_die, pf);  in add_probe_trace_event()
1219 			.pf = {.pev = pev, .callback = add_probe_trace_event},  in debuginfo__find_trace_events()
1231 	ret = debuginfo__find_probes(dbg, &tf.pf);  in debuginfo__find_trace_events()
1255 		ret = convert_variable_location(die_mem, af->pf.addr,  in collect_variables_cb()
1256 						af->pf.fb_ops, &af->pf.sp_die,  in collect_variables_cb()
1266 	if (af->child && dwarf_haspc(die_mem, af->pf.addr))  in collect_variables_cb()
1273 static int add_available_vars(Dwarf_Die *sc_die, struct probe_finder *pf)  in add_available_vars()  argument
1276 			container_of(pf, struct available_var_finder, pf);  in add_available_vars()
1289 	ret = convert_to_trace_point(&pf->sp_die, af->mod, pf->addr,  in add_available_vars()
1290 				     pf->pev->point.retprobe, &vl->point);  in add_available_vars()
1309 	die_find_child(&pf->cu_die, collect_variables_cb, (void *)af, &die_mem);  in add_available_vars()
1331 			.pf = {.pev = pev, .callback = add_available_vars},  in debuginfo__find_available_vars_at()
1344 	ret = debuginfo__find_probes(dbg, &af.pf);  in debuginfo__find_available_vars_at()