diff options
| author | Martin Sebor <msebor@redhat.com> | 2019-11-22 17:14:17 +0000 |
|---|---|---|
| committer | Martin Sebor <msebor@gcc.gnu.org> | 2019-11-22 10:14:17 -0700 |
| commit | 54aa6b58fe2fe73bbe67e0485777e0c410a18673 (patch) | |
| tree | 11281ae8b5d5a5f2a57ffc60d7d8cfe951a953d8 /gcc/testsuite/c-c++-common | |
| parent | b5338fb359ea3480d6ed37bbc52fe2df49b82fb9 (diff) | |
PR middle-end/83859 - attributes to associate pointer arguments and sizes
gcc/ChangeLog:
PR middle-end/83859
* attribs.h (struct attr_access): New.
* attribs.c (decl_attributes): Add an informational note.
* builtins.c (check_access): Make extern. Consistently set no-warning
after issuing a warning. Handle calls through function pointers. Set
no-warning.
* builtins.h (check_access): Declare.
* calls.c (rdwr_access_hash): New type.
(rdwr_map): Same.
(init_attr_rdwr_indices): New function.
(maybe_warn_rdwr_sizes): Same.
(initialize_argument_information): Call init_attr_rdwr_indices.
Call maybe_warn_rdwr_sizes.
(get_size_range): Avoid null argument.
* doc/extend.texi (attribute access): Document new attribute.
gcc/c-family/ChangeLog:
PR middle-end/83859
* c-attribs.c (handle_access_attribute): New function.
(c_common_attribute_table): Add new attribute.
(get_argument_type): New function.
(append_access_attrs): New function.
(get_nonnull_operand): Rename...
(get_attribute_operand): ...to this.
* c-common.c (get_nonnull_operand): Rename...
(get_attribute_operand): ...to this.
gcc/testsuite/ChangeLog:
PR middle-end/83859
* c-c++-common/attr-nonstring-8.c: Adjust text of expected warning.
* gcc.dg/Wstringop-overflow-23.c: New test.
* gcc.dg/Wstringop-overflow-24.c: New test.
* gcc.dg/attr-access-read-only.c: New test.
* gcc.dg/attr-access-read-write.c: New test.
* gcc.dg/attr-access-read-write-2.c: New test.
* gcc.dg/attr-access-write-only.c: New test.
From-SVN: r278624
Diffstat (limited to 'gcc/testsuite/c-c++-common')
| -rw-r--r-- | gcc/testsuite/c-c++-common/attr-nonstring-8.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/testsuite/c-c++-common/attr-nonstring-8.c b/gcc/testsuite/c-c++-common/attr-nonstring-8.c index 36ab2a66180..fbae8bae5f7 100644 --- a/gcc/testsuite/c-c++-common/attr-nonstring-8.c +++ b/gcc/testsuite/c-c++-common/attr-nonstring-8.c @@ -57,8 +57,8 @@ void test_strncat_nonstring_cst (char *d) T (strncat (nd3, ns3, 1)); T (strncat (nd3, ns3, 2)); T (strncat (nd3, ns3, 3)); /* { dg-warning "specified bound 3 equals destination size" } */ - T (strncat (nd3, ns3, 4)); /* { dg-warning "argument 2 declared attribute .nonstring. is smaller than the specified bound 4" } */ - /* { dg-warning "specified bound 4 exceeds destination size 3" "" { target *-*-* } .-1 } */ + /* Either of the two warnings below is fine. */ + T (strncat (nd3, ns3, 4)); /* { dg-warning "argument 2 declared attribute .nonstring. is smaller than the specified bound 4|specified bound 4 exceeds destination size 3" } */ T (strncat (d, pns, sizeof pns)); /* { dg-warning "argument to .sizeof. in .\[^\n\r\]*strncat\[^\n\r\]*. call is the same expression as the source" } */ } |