OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

re PR sanitizer/59258 (ubsan: ICE(segfault): stack-buffer-overflow with -fsanitize=undefined)

Browse Source 
PR sanitizer/59258
	* ubsan.c (ubsan_source_location): Don't add any location
	to ADDR_EXPR in the ctor.  Revert 2013-11-22 change.
	(ubsan_create_data): Strip block info from LOC.

From-SVN: r205415
This commit is contained in:
Jakub Jelinek 2013-11-26 22:27:19 +01:00 committed by Jakub Jelinek
parent 1f2541577e
commit 13a5b41c7d
2 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,5 +1,10 @@
2013-11-26 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/59258
* ubsan.c (ubsan_source_location): Don't add any location
to ADDR_EXPR in the ctor. Revert 2013-11-22 change.
(ubsan_create_data): Strip block info from LOC.
PR middle-end/59273
* tree-vect-generic.c (optimize_vector_constructor): Don't optimize
if there isn't optab handler for the corresponding vector PLUS_EXPR.

7
gcc/ubsan.c
View File

@ -229,13 +229,13 @@ ubsan_source_location (location_t loc)
xloc = expand_location (loc);
/* Fill in the values from LOC. */
size_t len = xloc.file ? strlen (xloc.file) : 0;
tree str = build_string (len + 1, xloc.file ? xloc.file : "");
size_t len = strlen (xloc.file);
tree str = build_string (len + 1, xloc.file);
TREE_TYPE (str) = build_array_type (char_type_node,
build_index_type (size_int (len)));
TREE_READONLY (str) = 1;
TREE_STATIC (str) = 1;
str = build_fold_addr_expr_loc (loc, str);
str = build_fold_addr_expr (str);
tree ctor = build_constructor_va (type, 3, NULL_TREE, str, NULL_TREE,
build_int_cst (unsigned_type_node,
xloc.line), NULL_TREE,
@ -398,6 +398,7 @@ ubsan_create_data (const char *name, location_t loc,
tree td_type = ubsan_type_descriptor_type ();
TYPE_READONLY (td_type) = 1;
td_type = build_pointer_type (td_type);
loc = LOCATION_LOCUS (loc);
/* Create the structure type. */
ret = make_node (RECORD_TYPE);