diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 097e1b7..6b25253 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -9861,6 +9861,8 @@ maybe_emit_chk_warning (tree exp, enum built_in_function fcode) (such as __strncat_chk) or null if the operation isn't bounded (such as __strcat_chk). */ tree maxlen = NULL_TREE; + /* The exact size of the access (such as in __strncpy_chk). */ + tree size = NULL_TREE; switch (fcode) { @@ -9888,7 +9890,7 @@ maybe_emit_chk_warning (tree exp, enum built_in_function fcode) case BUILT_IN_STRNCPY_CHK: case BUILT_IN_STPNCPY_CHK: srcstr = CALL_EXPR_ARG (exp, 1); - maxlen = CALL_EXPR_ARG (exp, 2); + size = CALL_EXPR_ARG (exp, 2); objsize = CALL_EXPR_ARG (exp, 3); break; @@ -9911,7 +9913,7 @@ maybe_emit_chk_warning (tree exp, enum built_in_function fcode) } check_sizes (OPT_Wstringop_overflow_, exp, - /*size=*/NULL_TREE, maxlen, srcstr, objsize); + size, maxlen, srcstr, objsize); } /* Emit warning if a buffer overflow is detected at compile time |