4 * Copyright (C) 2006,2008 Dan Carpenter.
6 * Licensed under the Open Software License version 1.1
15 #include "smatch_expression_stacks.h"
16 #include "smatch_extra.h"
17 #include "smatch_slist.h"
21 struct expression
*__inline_fn
;
23 static int __smatch_lineno
= 0;
25 static char *base_file
;
26 static const char *filename
;
27 static char *pathname
;
28 static char *full_filename
;
29 static char *cur_func
;
30 static int loop_count
;
31 int __expr_stmt_count
;
32 static struct expression_list
*switch_expr_stack
= NULL
;
34 struct expression_list
*big_expression_stack
;
35 struct statement_list
*big_statement_stack
;
36 int __in_pre_condition
= 0;
37 int __bail_on_rest_of_function
= 0;
38 char *get_function(void) { return cur_func
; }
39 int get_lineno(void) { return __smatch_lineno
; }
40 int inside_loop(void) { return !!loop_count
; }
41 struct expression
*get_switch_expr(void) { return top_expression(switch_expr_stack
); }
42 int in_expression_statement(void) { return !!__expr_stmt_count
; }
44 static void split_symlist(struct symbol_list
*sym_list
);
45 static void split_declaration(struct symbol_list
*sym_list
);
46 static void split_expr_list(struct expression_list
*expr_list
);
47 static void add_inline_function(struct symbol
*sym
);
48 static void parse_inline(struct expression
*expr
);
50 int option_assume_loops
= 0;
51 int option_known_conditions
= 0;
52 int option_two_passes
= 0;
53 struct symbol
*cur_func_sym
= NULL
;
55 const char *get_filename(void)
64 static void set_position(struct position pos
)
67 static int prev_stream
= -1;
69 __smatch_lineno
= pos
.line
;
71 if (pos
.stream
== prev_stream
)
74 filename
= stream_name(pos
.stream
);
77 pathname
= getcwd(NULL
, 0);
79 len
= strlen(pathname
) + 1 + strlen(filename
) + 1;
80 full_filename
= malloc(len
);
81 snprintf(full_filename
, len
, "%s/%s", pathname
, filename
);
83 full_filename
= alloc_string(filename
);
88 static int is_inline_func(struct expression
*expr
)
90 if (expr
->type
!= EXPR_SYMBOL
|| !expr
->symbol
)
92 if (expr
->symbol
->ctype
.modifiers
& MOD_INLINE
)
97 static int is_noreturn_func(struct expression
*expr
)
99 if (expr
->type
!= EXPR_SYMBOL
|| !expr
->symbol
)
101 if (expr
->symbol
->ctype
.modifiers
& MOD_NORETURN
)
106 int inlinable(struct expression
*expr
)
110 if (__inline_fn
) /* don't nest */
113 if (expr
->type
!= EXPR_SYMBOL
|| !expr
->symbol
)
115 sym
= get_base_type(expr
->symbol
);
116 if (sym
->stmt
&& sym
->stmt
->type
== STMT_COMPOUND
) {
117 if (ptr_list_size((struct ptr_list
*)sym
->stmt
->stmts
) <= 10)
121 if (sym
->inline_stmt
&& sym
->inline_stmt
->type
== STMT_COMPOUND
) {
122 if (ptr_list_size((struct ptr_list
*)sym
->inline_stmt
->stmts
) <= 10)
129 void __split_expr(struct expression
*expr
)
134 // sm_msg(" Debug expr_type %d %s", expr->type, show_special(expr->op));
136 push_expression(&big_expression_stack
, expr
);
137 set_position(expr
->pos
);
138 __pass_to_client(expr
, EXPR_HOOK
);
140 switch (expr
->type
) {
143 __pass_to_client(expr
, DEREF_HOOK
);
145 __pass_to_client(expr
, OP_HOOK
);
146 __split_expr(expr
->unop
);
150 __split_stmt(expr
->statement
);
155 __pass_to_client(expr
, LOGIC_HOOK
);
156 __handle_logic(expr
);
159 __pass_to_client(expr
, BINOP_HOOK
);
161 __split_expr(expr
->left
);
162 __split_expr(expr
->right
);
164 case EXPR_ASSIGNMENT
: {
165 struct expression
*tmp
;
170 __pass_to_client(expr
, RAW_ASSIGNMENT_HOOK
);
173 if (__handle_condition_assigns(expr
))
175 /* foo = (x < 5 ? foo : 5); */
176 if (__handle_select_assigns(expr
))
178 /* foo = ({frob(); frob(); frob(); 1;}) */
179 if (__handle_expr_statement_assigns(expr
))
182 __split_expr(expr
->right
);
183 __pass_to_client(expr
, ASSIGNMENT_HOOK
);
184 tmp
= strip_expr(expr
->right
);
185 if (tmp
->type
== EXPR_CALL
)
186 __pass_to_client(expr
, CALL_ASSIGNMENT_HOOK
);
187 if (get_macro_name(tmp
->pos
) &&
188 get_macro_name(expr
->pos
) != get_macro_name(tmp
->pos
))
189 __pass_to_client(expr
, MACRO_ASSIGNMENT_HOOK
);
190 __split_expr(expr
->left
);
194 __pass_to_client(expr
, DEREF_HOOK
);
195 __split_expr(expr
->deref
);
198 __split_expr(expr
->base
);
201 case EXPR_FORCE_CAST
:
202 __pass_to_client(expr
, CAST_HOOK
);
203 __split_expr(expr
->cast_expression
);
206 if (expr
->cast_expression
)
207 __pass_to_client(strip_parens(expr
->cast_expression
),
212 evaluate_expression(expr
);
214 case EXPR_CONDITIONAL
:
216 if (known_condition_true(expr
->conditional
)) {
217 __split_expr(expr
->cond_true
);
220 if (known_condition_false(expr
->conditional
)) {
221 __split_expr(expr
->cond_false
);
224 __pass_to_client(expr
, SELECT_HOOK
);
225 __split_whole_condition(expr
->conditional
);
226 __split_expr(expr
->cond_true
);
227 __push_true_states();
228 __use_false_states();
229 __split_expr(expr
->cond_false
);
230 __merge_true_states();
233 if (sym_name_is("__builtin_constant_p", expr
->fn
))
235 split_expr_list(expr
->args
);
236 __split_expr(expr
->fn
);
237 if (is_inline_func(expr
->fn
))
238 add_inline_function(expr
->fn
->symbol
);
239 if (inlinable(expr
->fn
))
241 __pass_to_client(expr
, FUNCTION_CALL_HOOK
);
243 if (inlinable(expr
->fn
)) {
246 __pass_to_client(expr
, CALL_HOOK_AFTER_INLINE
);
247 if (is_noreturn_func(expr
->fn
))
250 case EXPR_INITIALIZER
:
251 split_expr_list(expr
->expr_list
);
253 case EXPR_IDENTIFIER
:
254 __split_expr(expr
->ident_expression
);
257 __split_expr(expr
->idx_expression
);
260 __split_expr(expr
->init_expr
);
263 __pass_to_client(expr
, SYM_HOOK
);
266 __pass_to_client(expr
, STRING_HOOK
);
271 pop_expression(&big_expression_stack
);
274 static int is_forever_loop(struct statement
*stmt
)
276 struct expression
*expr
;
278 expr
= strip_expr(stmt
->iterator_pre_condition
);
280 expr
= stmt
->iterator_post_condition
;
282 /* this is a for(;;) loop... */
286 if (expr
->type
== EXPR_VALUE
&& expr
->value
== 1)
293 static char *get_loop_name(int num
)
297 snprintf(buf
, 255, "-loop%d", num
);
299 return alloc_sname(buf
);
303 * Pre Loops are while and for loops.
305 static void handle_pre_loop(struct statement
*stmt
)
307 int once_through
; /* we go through the loop at least once */
308 struct sm_state
*extra_sm
= NULL
;
311 struct state_list
*slist
= NULL
;
312 struct sm_state
*sm
= NULL
;
314 loop_name
= get_loop_name(loop_num
);
317 __split_stmt(stmt
->iterator_pre_statement
);
319 once_through
= implied_condition_true(stmt
->iterator_pre_condition
);
325 __merge_gotos(loop_name
);
327 extra_sm
= __extra_handle_canonical_loops(stmt
, &slist
);
328 __in_pre_condition
++;
329 __pass_to_client(stmt
, PRELOOP_HOOK
);
330 __split_whole_condition(stmt
->iterator_pre_condition
);
331 __in_pre_condition
--;
332 FOR_EACH_PTR(slist
, sm
) {
333 set_state(sm
->owner
, sm
->name
, sm
->sym
, sm
->state
);
334 } END_FOR_EACH_PTR(sm
);
337 extra_sm
= get_sm_state(extra_sm
->owner
, extra_sm
->name
, extra_sm
->sym
);
339 if (option_assume_loops
)
342 __split_stmt(stmt
->iterator_statement
);
343 __warn_on_silly_pre_loops();
344 if (is_forever_loop(stmt
)) {
345 struct state_list
*slist
;
347 __save_gotos(loop_name
);
349 __push_fake_cur_slist();
350 __split_stmt(stmt
->iterator_post_statement
);
351 slist
= __pop_fake_cur_slist();
353 __discard_continues();
354 __discard_false_states();
357 if (!__path_is_null())
358 __merge_slist_into_cur(slist
);
362 unchanged
= __iterator_unchanged(extra_sm
);
363 __split_stmt(stmt
->iterator_post_statement
);
364 __save_gotos(loop_name
);
365 __split_whole_condition(stmt
->iterator_pre_condition
);
367 __merge_false_states();
369 __discard_false_states();
371 __merge_false_states();
373 if (extra_sm
&& unchanged
)
374 __extra_pre_loop_hook_after(extra_sm
,
375 stmt
->iterator_post_statement
,
376 stmt
->iterator_pre_condition
);
383 * Post loops are do {} while();
385 static void handle_post_loop(struct statement
*stmt
)
389 loop_name
= get_loop_name(loop_num
);
395 __merge_gotos(loop_name
);
396 __split_stmt(stmt
->iterator_statement
);
398 if (!is_zero(stmt
->iterator_post_condition
))
399 __save_gotos(loop_name
);
401 if (is_forever_loop(stmt
)) {
404 __split_whole_condition(stmt
->iterator_post_condition
);
405 __use_false_states();
411 static int empty_statement(struct statement
*stmt
)
415 if (stmt
->type
== STMT_EXPRESSION
&& !stmt
->expression
)
420 static int last_stmt_on_same_line()
422 struct statement
*stmt
;
425 FOR_EACH_PTR_REVERSE(big_statement_stack
, stmt
) {
428 if (stmt
->pos
.line
== get_lineno())
431 } END_FOR_EACH_PTR_REVERSE(stmt
);
435 static struct statement
*last_stmt
;
436 static int is_last_stmt(struct statement
*stmt
)
438 if (stmt
== last_stmt
)
443 static void print_unreached_initializers(struct symbol_list
*sym_list
)
447 FOR_EACH_PTR(sym_list
, sym
) {
448 if (sym
->initializer
)
449 sm_msg("info: '%s' is not actually initialized (unreached code).",
450 (sym
->ident
? sym
->ident
->name
: "this variable"));
451 } END_FOR_EACH_PTR(sym
);
454 static void print_unreached(struct statement
*stmt
)
456 static int print
= 1;
458 if (!__path_is_null()) {
465 switch (stmt
->type
) {
466 case STMT_COMPOUND
: /* after a switch before a case stmt */
471 case STMT_DECLARATION
: /* switch (x) { int a; case foo: ... */
472 print_unreached_initializers(stmt
->declaration
);
474 case STMT_RETURN
: /* gcc complains if you don't have a return statement */
475 if (is_last_stmt(stmt
))
485 if (!option_spammy
&& empty_statement(stmt
))
487 sm_msg("info: ignoring unreachable code.");
491 static void split_asm_constraints(struct expression_list
*expr_list
)
493 struct expression
*expr
;
496 FOR_EACH_PTR(expr_list
, expr
) {
498 case 0: /* identifier */
499 case 1: /* constraint */
502 case 2: /* expression */
507 } END_FOR_EACH_PTR(expr
);
510 static int is_case_val(struct statement
*stmt
, sval_t sval
)
514 if (stmt
->type
!= STMT_CASE
)
516 if (!stmt
->case_expression
) {
520 if (!get_value(stmt
->case_expression
, &case_sval
))
522 if (case_sval
.value
== sval
.value
)
527 static void split_known_switch(struct statement
*stmt
, sval_t sval
)
529 struct statement
*tmp
;
531 __split_expr(stmt
->switch_expression
);
533 push_expression(&switch_expr_stack
, stmt
->switch_expression
);
534 __save_switch_states(top_expression(switch_expr_stack
));
539 stmt
= stmt
->switch_statement
;
542 last_stmt
= last_ptr_list((struct ptr_list
*)stmt
->stmts
);
544 __push_scope_hooks();
545 FOR_EACH_PTR(stmt
->stmts
, tmp
) {
546 __smatch_lineno
= tmp
->pos
.line
;
547 if (is_case_val(tmp
, sval
)) {
548 __merge_switches(top_expression(switch_expr_stack
),
549 stmt
->case_expression
);
550 __pass_case_to_client(top_expression(switch_expr_stack
),
551 stmt
->case_expression
);
553 if (__path_is_null())
556 if (__path_is_null()) {
560 } END_FOR_EACH_PTR(tmp
);
562 __call_scope_hooks();
563 if (!__pop_default())
564 __merge_switches(top_expression(switch_expr_stack
),
566 __discard_switches();
568 pop_expression(&switch_expr_stack
);
571 void __split_stmt(struct statement
*stmt
)
578 if (out_of_memory() || __bail_on_rest_of_function
) {
579 static char *printed
= NULL
;
581 if (printed
!= cur_func
)
582 sm_msg("Function too hairy. Giving up.");
583 final_pass
= 0; /* turn off sm_msg() from here */
588 add_ptr_list(&big_statement_stack
, stmt
);
589 free_expression_stack(&big_expression_stack
);
590 set_position(stmt
->pos
);
591 print_unreached(stmt
);
592 __pass_to_client(stmt
, STMT_HOOK
);
594 switch (stmt
->type
) {
595 case STMT_DECLARATION
:
596 split_declaration(stmt
->declaration
);
599 __split_expr(stmt
->ret_value
);
600 __pass_to_client(stmt
->ret_value
, RETURN_HOOK
);
603 case STMT_EXPRESSION
:
604 __split_expr(stmt
->expression
);
606 case STMT_COMPOUND
: {
607 struct statement
*tmp
;
610 last_stmt
= last_ptr_list((struct ptr_list
*)stmt
->stmts
);
611 __push_scope_hooks();
612 FOR_EACH_PTR(stmt
->stmts
, tmp
) {
614 } END_FOR_EACH_PTR(tmp
);
615 __call_scope_hooks();
619 if (known_condition_true(stmt
->if_conditional
)) {
620 __split_stmt(stmt
->if_true
);
623 if (known_condition_false(stmt
->if_conditional
)) {
624 __split_stmt(stmt
->if_false
);
627 if (option_known_conditions
&&
628 implied_condition_true(stmt
->if_conditional
)) {
629 sm_info("this condition is true.");
630 __split_stmt(stmt
->if_true
);
633 if (option_known_conditions
&&
634 implied_condition_false(stmt
->if_conditional
)) {
635 sm_info("this condition is false.");
636 __split_stmt(stmt
->if_false
);
639 __split_whole_condition(stmt
->if_conditional
);
640 __split_stmt(stmt
->if_true
);
641 if (empty_statement(stmt
->if_true
) &&
642 last_stmt_on_same_line() &&
643 !get_macro_name(stmt
->if_true
->pos
))
644 sm_msg("warn: if();");
645 __push_true_states();
646 __use_false_states();
647 __split_stmt(stmt
->if_false
);
648 __merge_true_states();
651 if (stmt
->iterator_pre_condition
)
652 handle_pre_loop(stmt
);
653 else if (stmt
->iterator_post_condition
)
654 handle_post_loop(stmt
);
656 // these are for(;;) type loops.
657 handle_pre_loop(stmt
);
661 if (get_value(stmt
->switch_expression
, &sval
)) {
662 split_known_switch(stmt
, sval
);
665 __split_expr(stmt
->switch_expression
);
666 push_expression(&switch_expr_stack
, stmt
->switch_expression
);
667 __save_switch_states(top_expression(switch_expr_stack
));
671 __split_stmt(stmt
->switch_statement
);
672 if (!__pop_default())
673 __merge_switches(top_expression(switch_expr_stack
),
675 __discard_switches();
677 pop_expression(&switch_expr_stack
);
680 __merge_switches(top_expression(switch_expr_stack
),
681 stmt
->case_expression
);
682 __pass_case_to_client(top_expression(switch_expr_stack
),
683 stmt
->case_expression
);
684 if (!stmt
->case_expression
)
686 __split_expr(stmt
->case_expression
);
687 __split_expr(stmt
->case_to
);
688 __split_stmt(stmt
->case_statement
);
691 if (stmt
->label_identifier
&&
692 stmt
->label_identifier
->type
== SYM_LABEL
&&
693 stmt
->label_identifier
->ident
) {
694 loop_count
= 1000000;
695 __merge_gotos(stmt
->label_identifier
->ident
->name
);
697 __split_stmt(stmt
->label_statement
);
700 __split_expr(stmt
->goto_expression
);
701 if (stmt
->goto_label
&& stmt
->goto_label
->type
== SYM_NODE
) {
702 if (!strcmp(stmt
->goto_label
->ident
->name
, "break")) {
704 } else if (!strcmp(stmt
->goto_label
->ident
->name
,
706 __process_continues();
708 } else if (stmt
->goto_label
&&
709 stmt
->goto_label
->type
== SYM_LABEL
&&
710 stmt
->goto_label
->ident
) {
711 __save_gotos(stmt
->goto_label
->ident
->name
);
718 __pass_to_client(stmt
, ASM_HOOK
);
719 __split_expr(stmt
->asm_string
);
720 split_asm_constraints(stmt
->asm_outputs
);
721 split_asm_constraints(stmt
->asm_inputs
);
722 split_asm_constraints(stmt
->asm_clobbers
);
727 __split_expr(stmt
->range_expression
);
728 __split_expr(stmt
->range_low
);
729 __split_expr(stmt
->range_high
);
734 static void split_expr_list(struct expression_list
*expr_list
)
736 struct expression
*expr
;
738 FOR_EACH_PTR(expr_list
, expr
) {
740 } END_FOR_EACH_PTR(expr
);
743 static void split_sym(struct symbol
*sym
)
747 if (!(sym
->namespace & NS_SYMBOL
))
750 __split_stmt(sym
->stmt
);
751 __split_expr(sym
->array_size
);
752 split_symlist(sym
->arguments
);
753 split_symlist(sym
->symbol_list
);
754 __split_stmt(sym
->inline_stmt
);
755 split_symlist(sym
->inline_symbol_list
);
758 static void split_symlist(struct symbol_list
*sym_list
)
762 FOR_EACH_PTR(sym_list
, sym
) {
764 } END_FOR_EACH_PTR(sym
);
767 static void fake_member_assigns(struct symbol
*sym
)
769 struct expression
*symbol
, *deref
, *assign
, *tmp
;
771 symbol
= symbol_expression(sym
);
772 FOR_EACH_PTR(sym
->initializer
->expr_list
, tmp
) {
773 if (tmp
->type
!= EXPR_IDENTIFIER
) /* how to handle arrays?? */
775 deref
= member_expression(symbol
, '.', tmp
->expr_ident
);
776 assign
= assign_expression(deref
, tmp
->ident_expression
);
777 __split_expr(assign
);
778 } END_FOR_EACH_PTR(tmp
);
781 static void fake_assign_expr(struct symbol
*sym
)
783 struct expression
*assign
, *symbol
;
785 symbol
= symbol_expression(sym
);
786 assign
= assign_expression(symbol
, sym
->initializer
);
787 __split_expr(assign
);
790 static void do_initializer_stuff(struct symbol
*sym
)
792 if (!sym
->initializer
)
794 if (sym
->initializer
->type
== EXPR_INITIALIZER
)
795 fake_member_assigns(sym
);
797 fake_assign_expr(sym
);
800 static void split_declaration(struct symbol_list
*sym_list
)
804 FOR_EACH_PTR(sym_list
, sym
) {
805 __pass_to_client(sym
, DECLARATION_HOOK
);
806 do_initializer_stuff(sym
);
808 } END_FOR_EACH_PTR(sym
);
811 static void fake_global_assign(struct symbol
*sym
)
813 struct expression
*assign
, *symbol
;
815 if (!sym
->initializer
)
817 if (sym
->initializer
->type
== EXPR_INITIALIZER
) {
818 struct expression
*deref
, *tmp
;
820 symbol
= symbol_expression(sym
);
821 FOR_EACH_PTR(sym
->initializer
->expr_list
, tmp
) {
822 if (tmp
->type
!= EXPR_IDENTIFIER
) /* how to handle arrays?? */
824 deref
= member_expression(symbol
, '.', tmp
->expr_ident
);
825 assign
= assign_expression(deref
, tmp
->ident_expression
);
826 __pass_to_client(assign
, GLOBAL_ASSIGNMENT_HOOK
);
827 } END_FOR_EACH_PTR(tmp
);
829 symbol
= symbol_expression(sym
);
830 assign
= assign_expression(symbol
, sym
->initializer
);
831 __pass_to_client(assign
, GLOBAL_ASSIGNMENT_HOOK
);
835 static void split_function(struct symbol
*sym
)
837 struct symbol
*base_type
= get_base_type(sym
);
841 cur_func
= sym
->ident
->name
;
842 __smatch_lineno
= sym
->pos
.line
;
845 sm_debug("new function: %s\n", cur_func
);
847 if (option_two_passes
) {
851 __pass_to_client(sym
, FUNC_DEF_HOOK
);
852 __pass_to_client(sym
, AFTER_DEF_HOOK
);
853 __split_stmt(base_type
->stmt
);
854 __split_stmt(base_type
->inline_stmt
);
860 __pass_to_client(sym
, FUNC_DEF_HOOK
);
861 __pass_to_client(sym
, AFTER_DEF_HOOK
);
862 __split_stmt(base_type
->stmt
);
863 __split_stmt(base_type
->inline_stmt
);
864 __pass_to_client(sym
, END_FUNC_HOOK
);
867 free_data_info_allocs();
868 free_expression_stack(&switch_expr_stack
);
869 __free_ptr_list((struct ptr_list
**)&big_statement_stack
);
870 __bail_on_rest_of_function
= 0;
873 static void parse_inline(struct expression
*call
)
875 struct symbol
*base_type
;
876 int loop_num_bak
= loop_num
;
877 int final_pass_bak
= final_pass
;
878 char *cur_func_bak
= cur_func
;
879 struct statement_list
*big_statement_stack_bak
= big_statement_stack
;
880 struct expression_list
*switch_expr_stack_bak
= switch_expr_stack
;
881 struct symbol
*cur_func_sym_bak
= cur_func_sym
;
883 sm_debug("inline function: %s\n", cur_func
);
884 __pass_to_client(call
, INLINE_FN_START
);
885 final_pass
= 0; /* don't print anything */
888 base_type
= get_base_type(call
->fn
->symbol
);
889 cur_func_sym
= call
->fn
->symbol
;
890 if (call
->fn
->symbol
->ident
)
891 cur_func
= call
->fn
->symbol
->ident
->name
;
894 set_position(call
->fn
->symbol
->pos
);
897 nullify_all_states();
898 big_statement_stack
= NULL
;
899 switch_expr_stack
= NULL
;
903 __pass_to_client(call
->fn
->symbol
, FUNC_DEF_HOOK
);
904 __pass_to_client(call
->fn
->symbol
, AFTER_DEF_HOOK
);
905 __split_stmt(base_type
->stmt
);
906 __split_stmt(base_type
->inline_stmt
);
907 __pass_to_client(call
->fn
->symbol
, END_FUNC_HOOK
);
909 free_expression_stack(&switch_expr_stack
);
910 __free_ptr_list((struct ptr_list
**)&big_statement_stack
);
913 loop_num
= loop_num_bak
;
914 final_pass
= final_pass_bak
;
915 cur_func_sym
= cur_func_sym_bak
;
916 cur_func
= cur_func_bak
;
917 big_statement_stack
= big_statement_stack_bak
;
918 switch_expr_stack
= switch_expr_stack_bak
;
920 restore_all_states();
921 set_position(call
->pos
);
923 __pass_to_client(call
, INLINE_FN_END
);
926 static struct symbol_list
*inlines_called
;
927 static void add_inline_function(struct symbol
*sym
)
929 static struct symbol_list
*already_added
;
932 FOR_EACH_PTR(already_added
, tmp
) {
935 } END_FOR_EACH_PTR(tmp
);
937 add_ptr_list(&already_added
, sym
);
938 add_ptr_list(&inlines_called
, sym
);
941 static void process_inlines()
945 FOR_EACH_PTR(inlines_called
, tmp
) {
947 } END_FOR_EACH_PTR(tmp
);
948 free_ptr_list(&inlines_called
);
951 static void split_functions(struct symbol_list
*sym_list
)
955 FOR_EACH_PTR(sym_list
, sym
) {
956 set_position(sym
->pos
);
957 if (sym
->type
== SYM_NODE
&& get_base_type(sym
)->type
== SYM_FN
) {
961 __pass_to_client(sym
, BASE_HOOK
);
962 fake_global_assign(sym
);
964 } END_FOR_EACH_PTR(sym
);
965 __pass_to_client_no_data(END_FILE_HOOK
);
968 void smatch(int argc
, char **argv
)
971 struct string_list
*filelist
= NULL
;
972 struct symbol_list
*sym_list
;
975 printf("Usage: smatch [--debug] <filename.c>\n");
978 sparse_initialize(argc
, argv
, &filelist
);
979 FOR_EACH_PTR_NOTAG(filelist
, base_file
) {
980 if (option_file_output
) {
983 snprintf(buf
, sizeof(buf
), "%s.smatch", base_file
);
984 sm_outfd
= fopen(buf
, "w");
986 printf("Error: Cannot open %s\n", base_file
);
990 sym_list
= sparse_keep_tokens(base_file
);
991 split_functions(sym_list
);
992 } END_FOR_EACH_PTR_NOTAG(base_file
);