luke
/
iverilog
mirror of https://github.com/steveicarus/iverilog.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Fix memory leaks when parsing function calls 

For function calls when calling the PECallFunction() constructor a copy is
made of the argument expression list. This means the original list should
be deleted within the rule.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
This commit is contained in:
Lars-Peter Clausen 2022-09-20 19:57:27 +02:00
parent fd69d4e09c
commit f9aadc13b5
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
parse.y
View File

@ -3704,6 +3704,7 @@ expr_primary
PECallFunction*tmp = pform_make_call_function(@1, *$1, *expr_list); PECallFunction*tmp = pform_make_call_function(@1, *$1, *expr_list);
delete $1; delete $1;
delete $2; delete $2;
delete expr_list;
$$ = tmp; $$ = tmp;
} }
| class_hierarchy_identifier '(' expression_list_with_nuls ')' | class_hierarchy_identifier '(' expression_list_with_nuls ')'
@ -3711,6 +3712,7 @@ expr_primary
strip_tail_items(expr_list); strip_tail_items(expr_list);
PECallFunction*tmp = pform_make_call_function(@1, *$1, *expr_list); PECallFunction*tmp = pform_make_call_function(@1, *$1, *expr_list);
delete $1; delete $1;
delete expr_list;
$$ = tmp; $$ = tmp;
} }
| SYSTEM_IDENTIFIER '(' expression_list_proper ')' | SYSTEM_IDENTIFIER '(' expression_list_proper ')'
@ -3718,6 +3720,7 @@ expr_primary
PECallFunction*tmp = new PECallFunction(tn, *$3); PECallFunction*tmp = new PECallFunction(tn, *$3);
FILE_NAME(tmp, @1); FILE_NAME(tmp, @1);
delete[]$1; delete[]$1;
delete $3;
$$ = tmp; $$ = tmp;
} }
| PACKAGE_IDENTIFIER K_SCOPE_RES IDENTIFIER '(' expression_list_proper ')' | PACKAGE_IDENTIFIER K_SCOPE_RES IDENTIFIER '(' expression_list_proper ')'
@ -3725,6 +3728,7 @@ expr_primary
PECallFunction*tmp = new PECallFunction($1, use_name, *$5); PECallFunction*tmp = new PECallFunction($1, use_name, *$5);
FILE_NAME(tmp, @3); FILE_NAME(tmp, @3);
delete[]$3; delete[]$3;
delete $5;
$$ = tmp; $$ = tmp;
} }
| SYSTEM_IDENTIFIER '(' ')' | SYSTEM_IDENTIFIER '(' ')'