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 const char *get_base_file(void)
69 static void set_position(struct position pos
)
72 static int prev_stream
= -1;
74 __smatch_lineno
= pos
.line
;
76 if (pos
.stream
== prev_stream
)
79 filename
= stream_name(pos
.stream
);
82 pathname
= getcwd(NULL
, 0);
84 len
= strlen(pathname
) + 1 + strlen(filename
) + 1;
85 full_filename
= malloc(len
);
86 snprintf(full_filename
, len
, "%s/%s", pathname
, filename
);
88 full_filename
= alloc_string(filename
);
93 static int is_inline_func(struct expression
*expr
)
95 if (expr
->type
!= EXPR_SYMBOL
|| !expr
->symbol
)
97 if (expr
->symbol
->ctype
.modifiers
& MOD_INLINE
)
102 static int is_noreturn_func(struct expression
*expr
)
104 if (expr
->type
!= EXPR_SYMBOL
|| !expr
->symbol
)
106 if (expr
->symbol
->ctype
.modifiers
& MOD_NORETURN
)
111 int inlinable(struct expression
*expr
)
115 if (__inline_fn
) /* don't nest */
118 if (expr
->type
!= EXPR_SYMBOL
|| !expr
->symbol
)
120 sym
= get_base_type(expr
->symbol
);
121 if (sym
->stmt
&& sym
->stmt
->type
== STMT_COMPOUND
) {
122 if (ptr_list_size((struct ptr_list
*)sym
->stmt
->stmts
) <= 10)
126 if (sym
->inline_stmt
&& sym
->inline_stmt
->type
== STMT_COMPOUND
) {
127 if (ptr_list_size((struct ptr_list
*)sym
->inline_stmt
->stmts
) <= 10)
134 void __split_expr(struct expression
*expr
)
139 // sm_msg(" Debug expr_type %d %s", expr->type, show_special(expr->op));
141 push_expression(&big_expression_stack
, expr
);
142 set_position(expr
->pos
);
143 __pass_to_client(expr
, EXPR_HOOK
);
145 switch (expr
->type
) {
148 __pass_to_client(expr
, DEREF_HOOK
);
150 __pass_to_client(expr
, OP_HOOK
);
151 __split_expr(expr
->unop
);
155 __split_stmt(expr
->statement
);
160 __pass_to_client(expr
, LOGIC_HOOK
);
161 __handle_logic(expr
);
164 __pass_to_client(expr
, BINOP_HOOK
);
166 __split_expr(expr
->left
);
167 __split_expr(expr
->right
);
169 case EXPR_ASSIGNMENT
: {
170 struct expression
*tmp
;
175 __pass_to_client(expr
, RAW_ASSIGNMENT_HOOK
);
178 if (__handle_condition_assigns(expr
))
180 /* foo = (x < 5 ? foo : 5); */
181 if (__handle_select_assigns(expr
))
183 /* foo = ({frob(); frob(); frob(); 1;}) */
184 if (__handle_expr_statement_assigns(expr
))
187 __split_expr(expr
->right
);
188 __pass_to_client(expr
, ASSIGNMENT_HOOK
);
189 tmp
= strip_expr(expr
->right
);
190 if (tmp
->type
== EXPR_CALL
)
191 __pass_to_client(expr
, CALL_ASSIGNMENT_HOOK
);
192 if (get_macro_name(tmp
->pos
) &&
193 get_macro_name(expr
->pos
) != get_macro_name(tmp
->pos
))
194 __pass_to_client(expr
, MACRO_ASSIGNMENT_HOOK
);
195 __split_expr(expr
->left
);
199 __pass_to_client(expr
, DEREF_HOOK
);
200 __split_expr(expr
->deref
);
203 __split_expr(expr
->base
);
206 case EXPR_FORCE_CAST
:
207 __pass_to_client(expr
, CAST_HOOK
);
208 __split_expr(expr
->cast_expression
);
211 if (expr
->cast_expression
)
212 __pass_to_client(strip_parens(expr
->cast_expression
),
217 evaluate_expression(expr
);
219 case EXPR_CONDITIONAL
:
221 if (known_condition_true(expr
->conditional
)) {
222 __split_expr(expr
->cond_true
);
225 if (known_condition_false(expr
->conditional
)) {
226 __split_expr(expr
->cond_false
);
229 __pass_to_client(expr
, SELECT_HOOK
);
230 __split_whole_condition(expr
->conditional
);
231 __split_expr(expr
->cond_true
);
232 __push_true_states();
233 __use_false_states();
234 __split_expr(expr
->cond_false
);
235 __merge_true_states();
238 if (sym_name_is("__builtin_constant_p", expr
->fn
))
240 split_expr_list(expr
->args
);
241 __split_expr(expr
->fn
);
242 if (is_inline_func(expr
->fn
))
243 add_inline_function(expr
->fn
->symbol
);
244 if (inlinable(expr
->fn
))
246 __pass_to_client(expr
, FUNCTION_CALL_HOOK
);
248 if (inlinable(expr
->fn
)) {
251 __pass_to_client(expr
, CALL_HOOK_AFTER_INLINE
);
252 if (is_noreturn_func(expr
->fn
))
255 case EXPR_INITIALIZER
:
256 split_expr_list(expr
->expr_list
);
258 case EXPR_IDENTIFIER
:
259 __split_expr(expr
->ident_expression
);
262 __split_expr(expr
->idx_expression
);
265 __split_expr(expr
->init_expr
);
268 __pass_to_client(expr
, SYM_HOOK
);
271 __pass_to_client(expr
, STRING_HOOK
);
276 pop_expression(&big_expression_stack
);
279 static int is_forever_loop(struct statement
*stmt
)
281 struct expression
*expr
;
283 expr
= strip_expr(stmt
->iterator_pre_condition
);
285 expr
= stmt
->iterator_post_condition
;
287 /* this is a for(;;) loop... */
291 if (expr
->type
== EXPR_VALUE
&& expr
->value
== 1)
298 static char *get_loop_name(int num
)
302 snprintf(buf
, 255, "-loop%d", num
);
304 return alloc_sname(buf
);
308 * Pre Loops are while and for loops.
310 static void handle_pre_loop(struct statement
*stmt
)
312 int once_through
; /* we go through the loop at least once */
313 struct sm_state
*extra_sm
= NULL
;
316 struct state_list
*slist
= NULL
;
317 struct sm_state
*sm
= NULL
;
319 loop_name
= get_loop_name(loop_num
);
322 __split_stmt(stmt
->iterator_pre_statement
);
324 once_through
= implied_condition_true(stmt
->iterator_pre_condition
);
330 __merge_gotos(loop_name
);
332 extra_sm
= __extra_handle_canonical_loops(stmt
, &slist
);
333 __in_pre_condition
++;
334 __pass_to_client(stmt
, PRELOOP_HOOK
);
335 __split_whole_condition(stmt
->iterator_pre_condition
);
336 __in_pre_condition
--;
337 FOR_EACH_PTR(slist
, sm
) {
338 set_state(sm
->owner
, sm
->name
, sm
->sym
, sm
->state
);
339 } END_FOR_EACH_PTR(sm
);
342 extra_sm
= get_sm_state(extra_sm
->owner
, extra_sm
->name
, extra_sm
->sym
);
344 if (option_assume_loops
)
347 __split_stmt(stmt
->iterator_statement
);
348 __warn_on_silly_pre_loops();
349 if (is_forever_loop(stmt
)) {
350 struct state_list
*slist
;
352 __save_gotos(loop_name
);
354 __push_fake_cur_slist();
355 __split_stmt(stmt
->iterator_post_statement
);
356 slist
= __pop_fake_cur_slist();
358 __discard_continues();
359 __discard_false_states();
362 if (!__path_is_null())
363 __merge_slist_into_cur(slist
);
367 unchanged
= __iterator_unchanged(extra_sm
);
368 __split_stmt(stmt
->iterator_post_statement
);
369 __save_gotos(loop_name
);
370 __split_whole_condition(stmt
->iterator_pre_condition
);
372 __merge_false_states();
374 __discard_false_states();
376 __merge_false_states();
378 if (extra_sm
&& unchanged
)
379 __extra_pre_loop_hook_after(extra_sm
,
380 stmt
->iterator_post_statement
,
381 stmt
->iterator_pre_condition
);
388 * Post loops are do {} while();
390 static void handle_post_loop(struct statement
*stmt
)
394 loop_name
= get_loop_name(loop_num
);
400 __merge_gotos(loop_name
);
401 __split_stmt(stmt
->iterator_statement
);
403 if (!is_zero(stmt
->iterator_post_condition
))
404 __save_gotos(loop_name
);
406 if (is_forever_loop(stmt
)) {
409 __split_whole_condition(stmt
->iterator_post_condition
);
410 __use_false_states();
416 static int empty_statement(struct statement
*stmt
)
420 if (stmt
->type
== STMT_EXPRESSION
&& !stmt
->expression
)
425 static int last_stmt_on_same_line()
427 struct statement
*stmt
;
430 FOR_EACH_PTR_REVERSE(big_statement_stack
, stmt
) {
433 if (stmt
->pos
.line
== get_lineno())
436 } END_FOR_EACH_PTR_REVERSE(stmt
);
440 static struct statement
*last_stmt
;
441 static int is_last_stmt(struct statement
*stmt
)
443 if (stmt
== last_stmt
)
448 static void print_unreached_initializers(struct symbol_list
*sym_list
)
452 FOR_EACH_PTR(sym_list
, sym
) {
453 if (sym
->initializer
)
454 sm_msg("info: '%s' is not actually initialized (unreached code).",
455 (sym
->ident
? sym
->ident
->name
: "this variable"));
456 } END_FOR_EACH_PTR(sym
);
459 static void print_unreached(struct statement
*stmt
)
461 static int print
= 1;
463 if (!__path_is_null()) {
470 switch (stmt
->type
) {
471 case STMT_COMPOUND
: /* after a switch before a case stmt */
476 case STMT_DECLARATION
: /* switch (x) { int a; case foo: ... */
477 print_unreached_initializers(stmt
->declaration
);
479 case STMT_RETURN
: /* gcc complains if you don't have a return statement */
480 if (is_last_stmt(stmt
))
490 if (!option_spammy
&& empty_statement(stmt
))
492 sm_msg("info: ignoring unreachable code.");
496 static void split_asm_constraints(struct expression_list
*expr_list
)
498 struct expression
*expr
;
501 FOR_EACH_PTR(expr_list
, expr
) {
503 case 0: /* identifier */
504 case 1: /* constraint */
507 case 2: /* expression */
512 } END_FOR_EACH_PTR(expr
);
515 static int is_case_val(struct statement
*stmt
, sval_t sval
)
519 if (stmt
->type
!= STMT_CASE
)
521 if (!stmt
->case_expression
) {
525 if (!get_value(stmt
->case_expression
, &case_sval
))
527 if (case_sval
.value
== sval
.value
)
532 static void split_known_switch(struct statement
*stmt
, sval_t sval
)
534 struct statement
*tmp
;
536 __split_expr(stmt
->switch_expression
);
538 push_expression(&switch_expr_stack
, stmt
->switch_expression
);
539 __save_switch_states(top_expression(switch_expr_stack
));
544 stmt
= stmt
->switch_statement
;
547 last_stmt
= last_ptr_list((struct ptr_list
*)stmt
->stmts
);
549 __push_scope_hooks();
550 FOR_EACH_PTR(stmt
->stmts
, tmp
) {
551 __smatch_lineno
= tmp
->pos
.line
;
552 if (is_case_val(tmp
, sval
)) {
553 __merge_switches(top_expression(switch_expr_stack
),
554 stmt
->case_expression
);
555 __pass_case_to_client(top_expression(switch_expr_stack
),
556 stmt
->case_expression
);
558 if (__path_is_null())
561 if (__path_is_null()) {
565 } END_FOR_EACH_PTR(tmp
);
567 __call_scope_hooks();
568 if (!__pop_default())
569 __merge_switches(top_expression(switch_expr_stack
),
571 __discard_switches();
573 pop_expression(&switch_expr_stack
);
576 void __split_stmt(struct statement
*stmt
)
583 if (out_of_memory() || __bail_on_rest_of_function
) {
584 static char *printed
= NULL
;
586 if (printed
!= cur_func
)
587 sm_msg("Function too hairy. Giving up.");
588 final_pass
= 0; /* turn off sm_msg() from here */
593 add_ptr_list(&big_statement_stack
, stmt
);
594 free_expression_stack(&big_expression_stack
);
595 set_position(stmt
->pos
);
596 print_unreached(stmt
);
597 __pass_to_client(stmt
, STMT_HOOK
);
599 switch (stmt
->type
) {
600 case STMT_DECLARATION
:
601 split_declaration(stmt
->declaration
);
604 __split_expr(stmt
->ret_value
);
605 __pass_to_client(stmt
->ret_value
, RETURN_HOOK
);
608 case STMT_EXPRESSION
:
609 __split_expr(stmt
->expression
);
611 case STMT_COMPOUND
: {
612 struct statement
*tmp
;
615 last_stmt
= last_ptr_list((struct ptr_list
*)stmt
->stmts
);
616 __push_scope_hooks();
617 FOR_EACH_PTR(stmt
->stmts
, tmp
) {
619 } END_FOR_EACH_PTR(tmp
);
620 __call_scope_hooks();
624 if (known_condition_true(stmt
->if_conditional
)) {
625 __split_stmt(stmt
->if_true
);
628 if (known_condition_false(stmt
->if_conditional
)) {
629 __split_stmt(stmt
->if_false
);
632 if (option_known_conditions
&&
633 implied_condition_true(stmt
->if_conditional
)) {
634 sm_info("this condition is true.");
635 __split_stmt(stmt
->if_true
);
638 if (option_known_conditions
&&
639 implied_condition_false(stmt
->if_conditional
)) {
640 sm_info("this condition is false.");
641 __split_stmt(stmt
->if_false
);
644 __split_whole_condition(stmt
->if_conditional
);
645 __split_stmt(stmt
->if_true
);
646 if (empty_statement(stmt
->if_true
) &&
647 last_stmt_on_same_line() &&
648 !get_macro_name(stmt
->if_true
->pos
))
649 sm_msg("warn: if();");
650 __push_true_states();
651 __use_false_states();
652 __split_stmt(stmt
->if_false
);
653 __merge_true_states();
656 if (stmt
->iterator_pre_condition
)
657 handle_pre_loop(stmt
);
658 else if (stmt
->iterator_post_condition
)
659 handle_post_loop(stmt
);
661 // these are for(;;) type loops.
662 handle_pre_loop(stmt
);
666 if (get_value(stmt
->switch_expression
, &sval
)) {
667 split_known_switch(stmt
, sval
);
670 __split_expr(stmt
->switch_expression
);
671 push_expression(&switch_expr_stack
, stmt
->switch_expression
);
672 __save_switch_states(top_expression(switch_expr_stack
));
676 __split_stmt(stmt
->switch_statement
);
677 if (!__pop_default())
678 __merge_switches(top_expression(switch_expr_stack
),
680 __discard_switches();
682 pop_expression(&switch_expr_stack
);
685 __merge_switches(top_expression(switch_expr_stack
),
686 stmt
->case_expression
);
687 __pass_case_to_client(top_expression(switch_expr_stack
),
688 stmt
->case_expression
);
689 if (!stmt
->case_expression
)
691 __split_expr(stmt
->case_expression
);
692 __split_expr(stmt
->case_to
);
693 __split_stmt(stmt
->case_statement
);
696 if (stmt
->label_identifier
&&
697 stmt
->label_identifier
->type
== SYM_LABEL
&&
698 stmt
->label_identifier
->ident
) {
699 loop_count
= 1000000;
700 __merge_gotos(stmt
->label_identifier
->ident
->name
);
702 __split_stmt(stmt
->label_statement
);
705 __split_expr(stmt
->goto_expression
);
706 if (stmt
->goto_label
&& stmt
->goto_label
->type
== SYM_NODE
) {
707 if (!strcmp(stmt
->goto_label
->ident
->name
, "break")) {
709 } else if (!strcmp(stmt
->goto_label
->ident
->name
,
711 __process_continues();
713 } else if (stmt
->goto_label
&&
714 stmt
->goto_label
->type
== SYM_LABEL
&&
715 stmt
->goto_label
->ident
) {
716 __save_gotos(stmt
->goto_label
->ident
->name
);
723 __pass_to_client(stmt
, ASM_HOOK
);
724 __split_expr(stmt
->asm_string
);
725 split_asm_constraints(stmt
->asm_outputs
);
726 split_asm_constraints(stmt
->asm_inputs
);
727 split_asm_constraints(stmt
->asm_clobbers
);
732 __split_expr(stmt
->range_expression
);
733 __split_expr(stmt
->range_low
);
734 __split_expr(stmt
->range_high
);
739 static void split_expr_list(struct expression_list
*expr_list
)
741 struct expression
*expr
;
743 FOR_EACH_PTR(expr_list
, expr
) {
745 } END_FOR_EACH_PTR(expr
);
748 static void split_sym(struct symbol
*sym
)
752 if (!(sym
->namespace & NS_SYMBOL
))
755 __split_stmt(sym
->stmt
);
756 __split_expr(sym
->array_size
);
757 split_symlist(sym
->arguments
);
758 split_symlist(sym
->symbol_list
);
759 __split_stmt(sym
->inline_stmt
);
760 split_symlist(sym
->inline_symbol_list
);
763 static void split_symlist(struct symbol_list
*sym_list
)
767 FOR_EACH_PTR(sym_list
, sym
) {
769 } END_FOR_EACH_PTR(sym
);
772 static void fake_member_assigns(struct symbol
*sym
)
774 struct expression
*symbol
, *deref
, *assign
, *tmp
;
776 symbol
= symbol_expression(sym
);
777 FOR_EACH_PTR(sym
->initializer
->expr_list
, tmp
) {
778 if (tmp
->type
!= EXPR_IDENTIFIER
) /* how to handle arrays?? */
780 deref
= member_expression(symbol
, '.', tmp
->expr_ident
);
781 assign
= assign_expression(deref
, tmp
->ident_expression
);
782 __split_expr(assign
);
783 } END_FOR_EACH_PTR(tmp
);
786 static void fake_assign_expr(struct symbol
*sym
)
788 struct expression
*assign
, *symbol
;
790 symbol
= symbol_expression(sym
);
791 assign
= assign_expression(symbol
, sym
->initializer
);
792 __split_expr(assign
);
795 static void do_initializer_stuff(struct symbol
*sym
)
797 if (!sym
->initializer
)
799 if (sym
->initializer
->type
== EXPR_INITIALIZER
)
800 fake_member_assigns(sym
);
802 fake_assign_expr(sym
);
805 static void split_declaration(struct symbol_list
*sym_list
)
809 FOR_EACH_PTR(sym_list
, sym
) {
810 __pass_to_client(sym
, DECLARATION_HOOK
);
811 do_initializer_stuff(sym
);
813 } END_FOR_EACH_PTR(sym
);
816 static void fake_global_assign(struct symbol
*sym
)
818 struct expression
*assign
, *symbol
;
820 if (!sym
->initializer
)
822 if (sym
->initializer
->type
== EXPR_INITIALIZER
) {
823 struct expression
*deref
, *tmp
;
825 symbol
= symbol_expression(sym
);
826 FOR_EACH_PTR(sym
->initializer
->expr_list
, tmp
) {
827 if (tmp
->type
!= EXPR_IDENTIFIER
) /* how to handle arrays?? */
829 deref
= member_expression(symbol
, '.', tmp
->expr_ident
);
830 assign
= assign_expression(deref
, tmp
->ident_expression
);
831 __pass_to_client(assign
, GLOBAL_ASSIGNMENT_HOOK
);
832 } END_FOR_EACH_PTR(tmp
);
834 symbol
= symbol_expression(sym
);
835 assign
= assign_expression(symbol
, sym
->initializer
);
836 __pass_to_client(assign
, GLOBAL_ASSIGNMENT_HOOK
);
840 static void split_function(struct symbol
*sym
)
842 struct symbol
*base_type
= get_base_type(sym
);
846 cur_func
= sym
->ident
->name
;
847 __smatch_lineno
= sym
->pos
.line
;
850 sm_debug("new function: %s\n", cur_func
);
852 if (option_two_passes
) {
856 __pass_to_client(sym
, FUNC_DEF_HOOK
);
857 __pass_to_client(sym
, AFTER_DEF_HOOK
);
858 __split_stmt(base_type
->stmt
);
859 __split_stmt(base_type
->inline_stmt
);
865 __pass_to_client(sym
, FUNC_DEF_HOOK
);
866 __pass_to_client(sym
, AFTER_DEF_HOOK
);
867 __split_stmt(base_type
->stmt
);
868 __split_stmt(base_type
->inline_stmt
);
869 __pass_to_client(sym
, END_FUNC_HOOK
);
872 free_data_info_allocs();
873 free_expression_stack(&switch_expr_stack
);
874 __free_ptr_list((struct ptr_list
**)&big_statement_stack
);
875 __bail_on_rest_of_function
= 0;
878 static void parse_inline(struct expression
*call
)
880 struct symbol
*base_type
;
881 int loop_num_bak
= loop_num
;
882 int final_pass_bak
= final_pass
;
883 char *cur_func_bak
= cur_func
;
884 struct statement_list
*big_statement_stack_bak
= big_statement_stack
;
885 struct expression_list
*big_expression_stack_bak
= big_expression_stack
;
886 struct expression_list
*switch_expr_stack_bak
= switch_expr_stack
;
887 struct symbol
*cur_func_sym_bak
= cur_func_sym
;
889 __pass_to_client(call
, INLINE_FN_START
);
890 final_pass
= 0; /* don't print anything */
893 base_type
= get_base_type(call
->fn
->symbol
);
894 cur_func_sym
= call
->fn
->symbol
;
895 if (call
->fn
->symbol
->ident
)
896 cur_func
= call
->fn
->symbol
->ident
->name
;
899 set_position(call
->fn
->symbol
->pos
);
902 nullify_all_states();
903 big_statement_stack
= NULL
;
904 big_expression_stack
= NULL
;
905 switch_expr_stack
= NULL
;
907 sm_debug("inline function: %s\n", cur_func
);
910 __pass_to_client(call
->fn
->symbol
, FUNC_DEF_HOOK
);
911 __pass_to_client(call
->fn
->symbol
, AFTER_DEF_HOOK
);
912 __split_stmt(base_type
->stmt
);
913 __split_stmt(base_type
->inline_stmt
);
914 __pass_to_client(call
->fn
->symbol
, END_FUNC_HOOK
);
916 free_expression_stack(&switch_expr_stack
);
917 __free_ptr_list((struct ptr_list
**)&big_statement_stack
);
920 loop_num
= loop_num_bak
;
921 final_pass
= final_pass_bak
;
922 cur_func_sym
= cur_func_sym_bak
;
923 cur_func
= cur_func_bak
;
924 big_statement_stack
= big_statement_stack_bak
;
925 big_expression_stack
= big_expression_stack_bak
;
926 switch_expr_stack
= switch_expr_stack_bak
;
928 restore_all_states();
929 set_position(call
->pos
);
931 __pass_to_client(call
, INLINE_FN_END
);
934 static struct symbol_list
*inlines_called
;
935 static void add_inline_function(struct symbol
*sym
)
937 static struct symbol_list
*already_added
;
940 FOR_EACH_PTR(already_added
, tmp
) {
943 } END_FOR_EACH_PTR(tmp
);
945 add_ptr_list(&already_added
, sym
);
946 add_ptr_list(&inlines_called
, sym
);
949 static void process_inlines()
953 FOR_EACH_PTR(inlines_called
, tmp
) {
955 } END_FOR_EACH_PTR(tmp
);
956 free_ptr_list(&inlines_called
);
959 static void split_functions(struct symbol_list
*sym_list
)
963 FOR_EACH_PTR(sym_list
, sym
) {
964 set_position(sym
->pos
);
965 if (sym
->type
== SYM_NODE
&& get_base_type(sym
)->type
== SYM_FN
) {
969 __pass_to_client(sym
, BASE_HOOK
);
970 fake_global_assign(sym
);
972 } END_FOR_EACH_PTR(sym
);
973 __pass_to_client_no_data(END_FILE_HOOK
);
976 void smatch(int argc
, char **argv
)
979 struct string_list
*filelist
= NULL
;
980 struct symbol_list
*sym_list
;
983 printf("Usage: smatch [--debug] <filename.c>\n");
986 sparse_initialize(argc
, argv
, &filelist
);
987 FOR_EACH_PTR_NOTAG(filelist
, base_file
) {
988 if (option_file_output
) {
991 snprintf(buf
, sizeof(buf
), "%s.smatch", base_file
);
992 sm_outfd
= fopen(buf
, "w");
994 printf("Error: Cannot open %s\n", base_file
);
998 sym_list
= sparse_keep_tokens(base_file
);
999 split_functions(sym_list
);
1000 } END_FOR_EACH_PTR_NOTAG(base_file
);