Add -Wstringop-overread for reading past the end by string functions.
gcc/ChangeLog: * attribs.c (init_attr_rdwr_indices): Use global access_mode. * attribs.h (struct attr_access): Same. * builtins.c (fold_builtin_strlen): Add argument. (compute_objsize): Declare. (get_range): Declare. (check_read_access): New function. (access_ref::access_ref): Define ctor. (warn_string_no_nul): Add arguments. Handle -Wstrintop-overread. (check_nul_terminated_array): Handle source strings of different ranges of sizes. (expand_builtin_strlen): Remove warning code, call check_read_access instead. Declare locals closer to their initialization. (expand_builtin_strnlen): Same. (maybe_warn_for_bound): New function. (warn_for_access): Remove argument. Handle -Wstrintop-overread. (inform_access): Change argument type. (get_size_range): New function. (check_access): Remove unused arguments. Add new arguments. Handle -Wstrintop-overread. Move warning code to helpers and call them. Call check_nul_terminated_array. (check_memop_access): Remove unnecessary and provide additional arguments in calls. (expand_builtin_memchr): Call check_read_access. (expand_builtin_strcat): Remove unnecessary and provide additional arguments in calls. (expand_builtin_strcpy): Same. (expand_builtin_strcpy_args): Same. Avoid testing no-warning bit. (expand_builtin_stpcpy_1): Remove unnecessary and provide additional arguments in calls. (expand_builtin_stpncpy): Same. (check_strncat_sizes): Same. (expand_builtin_strncat): Remove unnecessary and provide additional arguments in calls. Adjust comments. (expand_builtin_strncpy): Remove unnecessary and provide additional arguments in calls. (expand_builtin_memcmp): Remove warning code. Call check_access. (expand_builtin_strcmp): Call check_access instead of check_nul_terminated_array. (expand_builtin_strncmp): Handle -Wstrintop-overread. (expand_builtin_fork_or_exec): Call check_access instead of check_nul_terminated_array. (expand_builtin): Same. (fold_builtin_1): Pass additional argument. (fold_builtin_n): Same. (fold_builtin_strpbrk): Remove calls to check_nul_terminated_array. (expand_builtin_memory_chk): Add comments. (maybe_emit_chk_warning): Remove unnecessary and provide additional arguments in calls. (maybe_emit_sprintf_chk_warning): Same. Adjust comments. * builtins.h (warn_string_no_nul): Add arguments. (struct access_ref): Add member and ctor argument. (struct access_data): Add members and ctor. (check_access): Adjust signature. * calls.c (maybe_warn_nonstring_arg): Return an indication of whether a warning was issued. Issue -Wstrintop-overread instead of -Wstringop-overflow. (append_attrname): Adjust to naming changes. (maybe_warn_rdwr_sizes): Same. Remove unnecessary and provide additional arguments in calls. * calls.h (maybe_warn_nonstring_arg): Return bool. * doc/invoke.texi (-Wstringop-overread): Document new option. * gimple-fold.c (gimple_fold_builtin_strcpy): Provide an additional argument in call. (gimple_fold_builtin_stpcpy): Same. * tree-ssa-uninit.c (maybe_warn_pass_by_reference): Adjust to naming changes. * tree.h (enum access_mode): New type. gcc/c-family/ChangeLog: * c.opt (Wstringop-overread): New option. gcc/testsuite/ChangeLog: * c-c++-common/Warray-bounds-7.c: Adjust expected warnings. * c-c++-common/Wrestrict.c: Remove xfail. * c-c++-common/attr-nonstring-3.c: Adjust text of expected warnings. * c-c++-common/attr-nonstring-6.c: Suppress -Wstringop-overread instead of -Wstringop-overflow. * c-c++-common/attr-nonstring-8.c: Adjust text of expected warnings. * g++.dg/torture/Wsizeof-pointer-memaccess1.C: Also suppress -Wstringop-overread. * g++.dg/torture/Wsizeof-pointer-memaccess2.C: Same. * gcc.dg/Warray-bounds-39.c: Adjust expected warnings. * gcc.dg/Warray-bounds-40.c: Also suppress -Wstringop-overread. * gcc.dg/Warray-bounds-58.c: Remove xfail. Also expect -Wstringop-overread. Adjust text of expected warnings. * gcc.dg/Wsizeof-pointer-memaccess1.c: Also suppress -Wstringop-overread. * gcc.dg/Wstringop-overflow-22.c: Adjust text of expected warnings. * gcc.dg/Wstringop-overflow-33.c: Expect -Wstringop-overread. * gcc.dg/Wstringop-overflow-9.c: Expect -Wstringop-overread. * gcc.dg/attr-nonstring-2.c: Adjust text of expected warnings. * gcc.dg/attr-nonstring-3.c: Same. * gcc.dg/attr-nonstring-4.c: Same. * gcc.dg/attr-nonstring.c: Expect -Wstringop-overread. * gcc.dg/builtin-stringop-chk-5.c: Adjust comment. * gcc.dg/builtin-stringop-chk-8.c: Enable -Wstringop-overread instead of -Wstringop-overflow. * gcc.dg/pr78902.c: Also expect -Wstringop-overread. * gcc.dg/pr79214.c: Adjust text of expected warnings. * gcc.dg/strcmpopt_10.c: Suppress valid -Wno-stringop-overread. * gcc.dg/strlenopt-57.c: Also expect -Wstringop-overread. * gcc.dg/torture/Wsizeof-pointer-memaccess1.c: Also suppress valid -Wno-stringop-overread. * gcc.dg/tree-ssa/builtins-folding-gimple-ub.c: Same. * gcc.dg/uninit-33.c: Same. * gcc.dg/warn-strnlen-no-nul-2.c: Adjust text of expected warning. * gcc.dg/warn-strnlen-no-nul.c: Same. * gcc.target/i386/strcmpopt_6.c: Suppress -Wstringop-overread. * gcc.dg/Wstringop-overread-2.c: New test. * gcc.dg/Wstringop-overread.c: New test.
This commit is contained in:
Martin Sebor
parent
26c24398d3
commit
d14c547abd
@ -2045,10 +2045,10 @@ init_attr_rdwr_indices (rdwr_map *rwm, tree fntype)
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switch (*m)
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{
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case 'r': acc.mode = acc.read_only; break;
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case 'w': acc.mode = acc.write_only; break;
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case 'x': acc.mode = acc.read_write; break;
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case '-': acc.mode = acc.none; break;
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case 'r': acc.mode = access_read_only; break;
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case 'w': acc.mode = access_write_only; break;
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case 'x': acc.mode = access_read_write; break;
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case '-': acc.mode = access_none; break;
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default: gcc_unreachable ();
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}
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@ -234,7 +234,6 @@ struct attr_access
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unsigned sizarg;
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/* The access mode. */
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enum access_mode { none, read_only, write_only, read_write };
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access_mode mode;
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};
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972
gcc/builtins.c
972
gcc/builtins.c
File diff suppressed because it is too large
Load Diff
@ -153,38 +153,56 @@ extern internal_fn associated_internal_fn (tree);
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extern internal_fn replacement_internal_fn (gcall *);
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extern bool check_nul_terminated_array (tree, tree, tree = NULL_TREE);
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extern void warn_string_no_nul (location_t, const char *, tree, tree);
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extern void warn_string_no_nul (location_t, tree, const char *, tree,
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tree, tree = NULL_TREE, bool = false,
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const wide_int[2] = NULL);
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extern tree unterminated_array (tree, tree * = NULL, bool * = NULL);
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extern bool builtin_with_linkage_p (tree);
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/* Describes a reference to an object used in an access. */
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struct access_ref
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{
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access_ref (): ref ()
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{
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/* Set to valid. */
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offrng[0] = offrng[1] = 0;
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/* Invalidate. */
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sizrng[0] = sizrng[1] = -1;
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}
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/* Set the bounds of the reference to at most as many bytes
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as the first argument or unknown when null, and at least
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one when the second argument is true unless the first one
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is a constant zero. */
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access_ref (tree = NULL_TREE, bool = false);
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/* Reference to the object. */
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/* Reference to the accessed object(s). */
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tree ref;
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/* Range of offsets into and sizes of the object(s). */
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/* Range of byte offsets into and sizes of the object(s). */
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offset_int offrng[2];
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offset_int sizrng[2];
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/* Range of the bound of the access: denotes that the access
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is at least BNDRNG[0] bytes but no more than BNDRNG[1].
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For string functions the size of the actual access is
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further constrained by the length of the string. */
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offset_int bndrng[2];
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};
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/* Describes a pair of references used in an access by built-in
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functions like memcpy. */
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struct access_data
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{
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/* Set the access to at most MAXWRITE and MAXREAD bytes, and
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at least 1 when MINWRITE or MINREAD, respectively, is set. */
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access_data (tree expr, access_mode mode,
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tree maxwrite = NULL_TREE, bool minwrite = false,
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tree maxread = NULL_TREE, bool minread = false)
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: call (expr),
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dst (maxwrite, minwrite), src (maxread, minread), mode (mode) { }
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/* Built-in function call. */
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tree call;
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/* Destination and source of the access. */
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access_ref dst, src;
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/* Read-only for functions like memcmp or strlen, write-only
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for memset, read-write for memcpy or strcat. */
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access_mode mode;
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};
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extern bool check_access (tree, tree, tree, tree, tree, tree, tree,
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bool = true, const access_data * = NULL);
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extern bool check_access (tree, tree, tree, tree, tree,
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access_mode, const access_data * = NULL);
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#endif /* GCC_BUILTINS_H */
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@ -823,6 +823,10 @@ C ObjC C++ LTO ObjC++ Joined RejectNegative UInteger Var(warn_stringop_overflow)
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Under the control of Object Size type, warn about buffer overflow in string
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manipulation functions like memcpy and strcpy.
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Wstringop-overread
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C ObjC C++ LTO ObjC++ Var(warn_stringop_overread) Init(1) Warning LangEnabledBy(C ObjC C++ LTO ObjC++, Wall)
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Warn about reading past the end of a source array in string manipulation functions like memchr and memcpy.
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Wstringop-truncation
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C ObjC C++ LTO ObjC++ Var(warn_stringop_truncation) Warning Init (1) LangEnabledBy(C ObjC C++ LTO ObjC++, Wall)
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Warn about truncation in string manipulation functions like strncat and strncpy.
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77
gcc/calls.c
77
gcc/calls.c
@ -1559,22 +1559,23 @@ get_attr_nonstring_decl (tree expr, tree *ref)
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return NULL_TREE;
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}
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/* Warn about passing a non-string array/pointer to a function that
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expects a nul-terminated string argument. */
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/* Warn about passing a non-string array/pointer to a built-in function
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that expects a nul-terminated string argument. Returns true if
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a warning has been issued.*/
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void
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bool
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maybe_warn_nonstring_arg (tree fndecl, tree exp)
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{
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if (!fndecl || !fndecl_built_in_p (fndecl, BUILT_IN_NORMAL))
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return;
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return false;
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if (TREE_NO_WARNING (exp) || !warn_stringop_overflow)
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return;
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if (TREE_NO_WARNING (exp) || !warn_stringop_overread)
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return false;
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/* Avoid clearly invalid calls (more checking done below). */
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unsigned nargs = call_expr_nargs (exp);
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if (!nargs)
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return;
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return false;
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/* The bound argument to a bounded string function like strncpy. */
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tree bound = NULL_TREE;
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@ -1666,22 +1667,27 @@ maybe_warn_nonstring_arg (tree fndecl, tree exp)
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if (bndrng[0])
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{
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/* Diagnose excessive bound prior the adjustment below and
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/* Diagnose excessive bound prior to the adjustment below and
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regardless of attribute nonstring. */
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tree maxobjsize = max_object_size ();
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if (tree_int_cst_lt (maxobjsize, bndrng[0]))
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{
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bool warned = false;
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if (tree_int_cst_equal (bndrng[0], bndrng[1]))
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warning_at (loc, OPT_Wstringop_overflow_,
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"%K%qD specified bound %E "
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"exceeds maximum object size %E",
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exp, fndecl, bndrng[0], maxobjsize);
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warned = warning_at (loc, OPT_Wstringop_overread,
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"%K%qD specified bound %E "
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"exceeds maximum object size %E",
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exp, fndecl, bndrng[0], maxobjsize);
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else
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warning_at (loc, OPT_Wstringop_overflow_,
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"%K%qD specified bound [%E, %E] "
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"exceeds maximum object size %E",
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exp, fndecl, bndrng[0], bndrng[1], maxobjsize);
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return;
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warned = warning_at (loc, OPT_Wstringop_overread,
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"%K%qD specified bound [%E, %E] "
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"exceeds maximum object size %E",
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exp, fndecl, bndrng[0], bndrng[1],
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maxobjsize);
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if (warned)
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TREE_NO_WARNING (exp) = true;
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return warned;
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}
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}
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@ -1710,6 +1716,7 @@ maybe_warn_nonstring_arg (tree fndecl, tree exp)
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}
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}
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bool any_arg_warned = false;
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/* Iterate over the built-in function's formal arguments and check
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each const char* against the actual argument. If the actual
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argument is declared attribute non-string issue a warning unless
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@ -1820,19 +1827,19 @@ maybe_warn_nonstring_arg (tree fndecl, tree exp)
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if (wi::ltu_p (asize, wibnd))
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{
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if (bndrng[0] == bndrng[1])
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warned = warning_at (loc, OPT_Wstringop_overflow_,
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warned = warning_at (loc, OPT_Wstringop_overread,
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"%qD argument %i declared attribute "
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"%<nonstring%> is smaller than the specified "
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"bound %wu",
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fndecl, argno + 1, wibnd.to_uhwi ());
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else if (wi::ltu_p (asize, wi::to_offset (bndrng[0])))
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warned = warning_at (loc, OPT_Wstringop_overflow_,
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warned = warning_at (loc, OPT_Wstringop_overread,
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"%qD argument %i declared attribute "
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"%<nonstring%> is smaller than "
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"the specified bound [%E, %E]",
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fndecl, argno + 1, bndrng[0], bndrng[1]);
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else
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warned = warning_at (loc, OPT_Wstringop_overflow_,
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warned = warning_at (loc, OPT_Wstringop_overread,
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"%qD argument %i declared attribute "
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"%<nonstring%> may be smaller than "
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"the specified bound [%E, %E]",
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@ -1842,14 +1849,22 @@ maybe_warn_nonstring_arg (tree fndecl, tree exp)
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; /* Avoid warning for calls to strncat() when the bound
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is equal to the size of the non-string argument. */
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else if (!bound)
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warned = warning_at (loc, OPT_Wstringop_overflow_,
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warned = warning_at (loc, OPT_Wstringop_overread,
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"%qD argument %i declared attribute %<nonstring%>",
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fndecl, argno + 1);
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if (warned)
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inform (DECL_SOURCE_LOCATION (decl),
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"argument %qD declared here", decl);
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{
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inform (DECL_SOURCE_LOCATION (decl),
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"argument %qD declared here", decl);
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any_arg_warned = true;
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}
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}
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if (any_arg_warned)
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TREE_NO_WARNING (exp) = true;
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return any_arg_warned;
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}
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/* Issue an error if CALL_EXPR was flagged as requiring
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@ -1896,11 +1911,11 @@ append_attrname (const std::pair<int, attr_access> &access,
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size_t len = strlen (attrstr);
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const char* const atname
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= (access.second.mode == attr_access::read_only
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= (access.second.mode == access_read_only
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? "read_only"
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: (access.second.mode == attr_access::write_only
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: (access.second.mode == access_write_only
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? "write_only"
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: (access.second.mode == attr_access::read_write
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: (access.second.mode == access_read_write
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? "read_write" : "none")));
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const char *sep = len ? ", " : "";
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@ -2045,7 +2060,7 @@ maybe_warn_rdwr_sizes (rdwr_map *rwm, tree fndecl, tree fntype, tree exp)
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tree objsize = compute_objsize (ptr, 0);
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tree srcsize;
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if (access.second.mode == attr_access::write_only)
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if (access.second.mode == access_write_only)
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{
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/* For a write-only argument there is no source. */
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srcsize = NULL_TREE;
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@ -2055,8 +2070,8 @@ maybe_warn_rdwr_sizes (rdwr_map *rwm, tree fndecl, tree fntype, tree exp)
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/* For read-only and read-write attributes also set the source
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size. */
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srcsize = objsize;
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if (access.second.mode == attr_access::read_only
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|| access.second.mode == attr_access::none)
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if (access.second.mode == access_read_only
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|| access.second.mode == access_none)
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{
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/* For a read-only attribute there is no destination so
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clear OBJSIZE. This emits "reading N bytes" kind of
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@ -2070,8 +2085,8 @@ maybe_warn_rdwr_sizes (rdwr_map *rwm, tree fndecl, tree fntype, tree exp)
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iteration so that accesses via different arguments are
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diagnosed. */
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TREE_NO_WARNING (exp) = false;
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check_access (exp, NULL_TREE, NULL_TREE, size, /*maxread=*/ NULL_TREE,
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srcsize, objsize, access.second.mode != attr_access::none);
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check_access (exp, size, /*maxread=*/ NULL_TREE, srcsize, objsize,
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access.second.mode);
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if (TREE_NO_WARNING (exp))
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/* If check_access issued a warning above, append the relevant
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@ -132,7 +132,7 @@ extern bool reference_callee_copied (CUMULATIVE_ARGS *,
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const function_arg_info &);
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extern void maybe_warn_alloc_args_overflow (tree, tree, tree[2], int[2]);
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extern tree get_attr_nonstring_decl (tree, tree * = NULL);
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extern void maybe_warn_nonstring_arg (tree, tree);
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extern bool maybe_warn_nonstring_arg (tree, tree);
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extern bool get_size_range (tree, tree[2], bool = false);
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extern rtx rtx_for_static_chain (const_tree, bool);
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extern bool cxx17_empty_base_field_p (const_tree);
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@ -366,7 +366,8 @@ Objective-C and Objective-C++ Dialects}.
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-Wstack-protector -Wstack-usage=@var{byte-size} -Wstrict-aliasing @gol
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-Wstrict-aliasing=n -Wstrict-overflow -Wstrict-overflow=@var{n} @gol
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-Wstring-compare @gol
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-Wstringop-overflow=@var{n} -Wno-stringop-truncation @gol
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-Wno-stringop-overflow -Wno-stringop-overread @gol
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-Wno-stringop-truncation @gol
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-Wsuggest-attribute=@r{[}pure@r{|}const@r{|}noreturn@r{|}format@r{|}malloc@r{]} @gol
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-Wswitch -Wno-switch-bool -Wswitch-default -Wswitch-enum @gol
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-Wno-switch-outside-range -Wno-switch-unreachable -Wsync-nand @gol
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@ -6754,6 +6755,7 @@ void f (char *d)
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@option{-Wstring-compare} is enabled by @option{-Wextra}.
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@item -Wno-stringop-overflow
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@item -Wstringop-overflow
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@itemx -Wstringop-overflow=@var{type}
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@opindex Wstringop-overflow
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@ -6795,6 +6797,15 @@ const char* f (enum Color clr)
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Option @option{-Wstringop-overflow=2} is enabled by default.
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@item -Wno-stringop-overread
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@opindex Wstringop-overread
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@opindex Wno-stringop-overread
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Warn for calls to string manipulation functions such as @code{memchr},
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@code{strcpy} that are determined to read past the end of the source
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sequence.
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Option @option{-Wstringop-overread} is enabled by default.
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@table @gcctabopt
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@item -Wstringop-overflow
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@itemx -Wstringop-overflow=1
|
||||
@ -7502,8 +7513,12 @@ This warning is also enabled by @option{-Wshadow=local}.
|
||||
Warn whenever an object is defined whose size exceeds @var{byte-size}.
|
||||
@option{-Wlarger-than=}@samp{PTRDIFF_MAX} is enabled by default.
|
||||
Warnings controlled by the option can be disabled either by specifying
|
||||
@var{byte-size} of @samp{SIZE_MAX} or more or by
|
||||
@option{-Wno-larger-than}.
|
||||
@var{byte-size} of @samp{SIZE_MAX} or more or by @option{-Wno-larger-than}.
|
||||
|
||||
Also warn for calls to bounded functions such as @code{memchr} or
|
||||
@code{strnlen} that specify a bound greater than the largest possible
|
||||
object, which is @samp{PTRDIFF_MAX} bytes by default. These warnings
|
||||
can only be disabled by @option{-Wno-larger-than}.
|
||||
|
||||
@item -Wno-larger-than
|
||||
@opindex Wno-larger-than
|
||||
|
||||
@ -1875,7 +1875,7 @@ gimple_fold_builtin_strcpy (gimple_stmt_iterator *gsi,
|
||||
{
|
||||
/* Avoid folding calls with unterminated arrays. */
|
||||
if (!gimple_no_warning_p (stmt))
|
||||
warn_string_no_nul (loc, "strcpy", src, nonstr);
|
||||
warn_string_no_nul (loc, NULL_TREE, "strcpy", src, nonstr);
|
||||
gimple_set_no_warning (stmt, true);
|
||||
return false;
|
||||
}
|
||||
@ -3074,11 +3074,16 @@ gimple_fold_builtin_stpcpy (gimple_stmt_iterator *gsi)
|
||||
|
||||
/* Set to non-null if ARG refers to an unterminated array. */
|
||||
c_strlen_data data = { };
|
||||
/* The size of the unterminated array if SRC referes to one. */
|
||||
tree size;
|
||||
/* True if the size is exact/constant, false if it's the lower bound
|
||||
of a range. */
|
||||
bool exact;
|
||||
tree len = c_strlen (src, 1, &data, 1);
|
||||
if (!len
|
||||
|| TREE_CODE (len) != INTEGER_CST)
|
||||
{
|
||||
data.decl = unterminated_array (src);
|
||||
data.decl = unterminated_array (src, &size, &exact);
|
||||
if (!data.decl)
|
||||
return false;
|
||||
}
|
||||
@ -3087,7 +3092,8 @@ gimple_fold_builtin_stpcpy (gimple_stmt_iterator *gsi)
|
||||
{
|
||||
/* Avoid folding calls with unterminated arrays. */
|
||||
if (!gimple_no_warning_p (stmt))
|
||||
warn_string_no_nul (loc, "stpcpy", src, data.decl);
|
||||
warn_string_no_nul (loc, NULL_TREE, "stpcpy", src, data.decl, size,
|
||||
exact);
|
||||
gimple_set_no_warning (stmt, true);
|
||||
return false;
|
||||
}
|
||||
|
||||
@ -29,52 +29,52 @@ void sink (unsigned);
|
||||
|
||||
void test_zero_length_array (void)
|
||||
{
|
||||
T (a0.a); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0.a - 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0.a + 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0.a + 9); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0.a); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0.a - 1); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0.a + 1); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0.a + 9); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0.a + SIZE_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
|
||||
T (a0_0.a); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0.a - 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0.a + 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0.a + 9); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0.a + 1); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0_0.a + 9); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0_0.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0_0.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0_0.a + SIZE_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
|
||||
T (a0_0_.a); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0_.a - 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0_.a + 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0_.a + 9); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0_.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0_.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a0_0_.a + 1); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0_0_.a + 9); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0_0_.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0_0_.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a0_0_.a + SIZE_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
}
|
||||
|
||||
void test_one_element_array (void)
|
||||
{
|
||||
T (a1.a - 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1.a + 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1.a + 9); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1.a + 1); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1.a + 9); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1.a + SIZE_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
|
||||
T (a1_0.a - 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1_0.a + 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1_0.a + 9); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1_0.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1_0.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1_0.a + 1); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1_0.a + 9); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1_0.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1_0.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1_0.a + SIZE_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
|
||||
T (a1_0_.a - 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1_0_.a + 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1_0_.a + 9); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1_0_.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1_0_.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (a1_0_.a + 1); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1_0_.a + 9); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1_0_.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1_0_.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (a1_0_.a + SIZE_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
}
|
||||
|
||||
@ -82,26 +82,25 @@ void test_flexible_array_member (void)
|
||||
{
|
||||
T (ax.a); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax.a - 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax.a + 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax.a + 9); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax.a + 1); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax.a + 9); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax.a + SIZE_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
|
||||
T (ax_0.a); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0.a - 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0.a + 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0.a + 9); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0.a + 1); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax_0.a + 9); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax_0.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax_0.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax_0.a + SIZE_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
|
||||
T (ax_0_.a); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0_.a - 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0_.a + 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0_.a + 9); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0_.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0_.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
T (ax_0_.a + 1); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax_0_.a + 9); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax_0_.a + INT_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax_0_.a + PTRDIFF_MAX); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
T (ax_0_.a + SIZE_MAX); // { dg-warning "\\\[-Warray-bounds" }
|
||||
}
|
||||
|
||||
|
||||
@ -637,9 +637,7 @@ void test_strcpy_cst (ptrdiff_t i)
|
||||
T ("012", a, a + 1); /* { dg-warning "accessing 3 bytes at offsets 0 and 1 overlaps 2 bytes at offset 1" "strcpy" } */
|
||||
T ("012", a, a + 2);
|
||||
T ("012", a, a + 3);
|
||||
/* The following doesn't overlap but it should trigger -Wstringop-overflow
|
||||
for reading past the end. */
|
||||
T ("012", a, a + sizeof a); /* { dg-warning "\\\[-Wstringop-overflow" "pr81437" { xfail *-*-* } } */
|
||||
T ("012", a, a + sizeof a); /* { dg-warning "\\\[-Wstringop-overread" "pr81437" } */
|
||||
|
||||
/* The terminating nul written to d[2] overwrites s[0]. */
|
||||
T ("0123", a, a + 2); /* { dg-warning "accessing 3 bytes at offsets 0 and 2 overlaps 1 byte at offset 2" } */
|
||||
|
||||
@ -379,9 +379,9 @@ void test_stnrdup_warn (struct MemArrays *p)
|
||||
T (strndup (p->arr, N));
|
||||
|
||||
|
||||
T (strndup (arr, N + 1)); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound 5" } */
|
||||
T (strndup (arr, N + 1)); /* { dg-warning "specified bound 5 exceeds source size 4" } */
|
||||
T (strndup (parr, N + 1));
|
||||
T (strndup (p->arr, N + 1)); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound 5" } */
|
||||
T (strndup (p->arr, N + 1)); /* { dg-warning "specified bound 5 exceeds source size 4" } */
|
||||
T (strndup (p->parr, N + 1));
|
||||
}
|
||||
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
/* PR 85623 - strncmp() warns about attribute 'nonstring' incorrectly
|
||||
in -Wstringop-overflow
|
||||
{ dg-do compile }
|
||||
{ dg-options "-O2 -Wstringop-overflow -ftrack-macro-expansion=0" } */
|
||||
{ dg-options "-O2 -Wstringop-overread -ftrack-macro-expansion=0" } */
|
||||
|
||||
#include "../gcc.dg/range.h"
|
||||
|
||||
@ -41,15 +41,15 @@ void test_strcmp_cst (void)
|
||||
T (strcmp (S (1), a3));
|
||||
T (strcmp (S (2), a3));
|
||||
/* The following reads a3[3]. */
|
||||
T (strcmp (S (3), a3)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcmp (S (3), a3)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
/* The following also reads past the end of a3. */
|
||||
T (strcmp (S (9), a3)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcmp (S (9), a3)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
T (strcmp (a3, S (0)));
|
||||
T (strcmp (a3, S (1)));
|
||||
T (strcmp (a3, S (2)));
|
||||
T (strcmp (a3, S (3))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcmp (a3, S (9))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcmp (a3, S (3))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strcmp (a3, S (9))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
|
||||
@ -62,16 +62,16 @@ void test_strcmp_range (const char *s)
|
||||
T (strcmp (a3, s));
|
||||
|
||||
s = signed_value () < 0 ? S (0) : S (3);
|
||||
T (strcmp (a3, s)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcmp (a3, s)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
s = signed_value () < 0 ? S (1) : S (2);
|
||||
T (strcmp (a3, s));
|
||||
|
||||
s = signed_value () < 0 ? S (1) : S (3);
|
||||
T (strcmp (a3, s)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcmp (a3, s)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
s = signed_value () < 0 ? S (3) : S (4);
|
||||
T (strcmp (a3, s)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcmp (a3, s)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
|
||||
@ -81,21 +81,21 @@ void test_strncmp_cst (void)
|
||||
T (strncmp (S (1), a3, 2));
|
||||
T (strncmp (S (2), a3, 3));
|
||||
T (strncmp (S (3), a3, 3));
|
||||
T (strncmp (S (3), a3, 4)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncmp (S (3), a3, 4)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
T (strncmp (S (9), a3, 3));
|
||||
T (strncmp (S (9), a3, 4)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncmp (S (9), a3, 5)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncmp (S (9), a3, 4)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strncmp (S (9), a3, 5)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
T (strncmp (a3, S (0), 1));
|
||||
T (strncmp (a3, S (1), 2));
|
||||
T (strncmp (a3, S (2), 3));
|
||||
T (strncmp (a3, S (3), 3));
|
||||
T (strncmp (a3, S (3), 4)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncmp (a3, S (3), 4)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
T (strncmp (a3, S (9), 3));
|
||||
T (strncmp (a3, S (9), 4)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncmp (a3, S (9), 5)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncmp (a3, S (9), 4)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strncmp (a3, S (9), 5)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void test_strncmp_range (const char *s)
|
||||
@ -110,8 +110,8 @@ void test_strncmp_range (const char *s)
|
||||
T (strncmp (a3, S (5), UR (1, 4)));
|
||||
T (strncmp (a3, S (5), UR (2, 5)));
|
||||
T (strncmp (a3, S (5), UR (3, 6)));
|
||||
T (strncmp (a3, S (5), UR (4, 7))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncmp (a3, S (5), UR (7, 9))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncmp (a3, S (5), UR (4, 7))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strncmp (a3, S (5), UR (7, 9))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
s = signed_value () < 0 ? S (0) : S (1);
|
||||
T (strncmp (a3, s, UR (1, 3)));
|
||||
@ -124,7 +124,7 @@ void test_strncmp_range (const char *s)
|
||||
T (strncmp (a3, s, UR (1, 4)));
|
||||
T (strncmp (a3, s, UR (2, 5)));
|
||||
T (strncmp (a3, s, UR (3, 6)));
|
||||
T (strncmp (a3, s, UR (4, 7))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncmp (a3, s, UR (4, 7))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void test_strncasecmp (void)
|
||||
@ -133,21 +133,21 @@ void test_strncasecmp (void)
|
||||
T (strncasecmp (S (1), a3, 2));
|
||||
T (strncasecmp (S (2), a3, 3));
|
||||
T (strncasecmp (S (3), a3, 3));
|
||||
T (strncasecmp (S (3), a3, 4)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncasecmp (S (3), a3, 4)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
T (strncasecmp (S (9), a3, 3));
|
||||
T (strncasecmp (S (9), a3, 4)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncasecmp (S (9), a3, 5)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncasecmp (S (9), a3, 4)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strncasecmp (S (9), a3, 5)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
T (strncasecmp (a3, S (0), 1));
|
||||
T (strncasecmp (a3, S (1), 2));
|
||||
T (strncasecmp (a3, S (2), 3));
|
||||
T (strncasecmp (a3, S (3), 3));
|
||||
T (strncasecmp (a3, S (3), 4)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncasecmp (a3, S (3), 4)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
T (strncasecmp (a3, S (9), 3));
|
||||
T (strncasecmp (a3, S (9), 4)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncasecmp (a3, S (9), 5)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strncasecmp (a3, S (9), 4)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strncasecmp (a3, S (9), 5)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void test_strspn (void)
|
||||
@ -155,31 +155,31 @@ void test_strspn (void)
|
||||
/* strspn must traverse all characters in the second argument except
|
||||
when the first string is empty. */
|
||||
T (strspn (S (0), a3));
|
||||
T (strspn (S (1), a3)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strspn (S (2), a3)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strspn (S (3), a3)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strspn (S (9), a3)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strspn (S (1), a3)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strspn (S (2), a3)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strspn (S (3), a3)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strspn (S (9), a3)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
/* Similarly, strspn must traverse all characters in the first argument
|
||||
except when the second string is empty. */
|
||||
T (strspn (a3, S (0)));
|
||||
T (strspn (a3, S (1))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strspn (a3, S (2))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strspn (a3, S (3))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strspn (a3, S (9))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strspn (a3, S (1))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strspn (a3, S (2))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strspn (a3, S (3))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strspn (a3, S (9))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void test_strcspn (void)
|
||||
{
|
||||
T (strcspn (S (0), a3));
|
||||
T (strcspn (S (1), a3)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcspn (S (2), a3)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcspn (S (3), a3)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcspn (S (9), a3)); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcspn (S (1), a3)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strcspn (S (2), a3)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strcspn (S (3), a3)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strcspn (S (9), a3)); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
|
||||
T (strcspn (a3, S (0))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcspn (a3, S (1))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcspn (a3, S (2))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcspn (a3, S (3))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcspn (a3, S (9))); /* { dg-warning "\\\[-Wstringop-overflow" } */
|
||||
T (strcspn (a3, S (0))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strcspn (a3, S (1))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strcspn (a3, S (2))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strcspn (a3, S (3))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
T (strcspn (a3, S (9))); /* { dg-warning "\\\[-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
@ -85,7 +85,7 @@ void test_strncat_nonstring_var (char *d, size_t n)
|
||||
T (strncat (nd3, ns5, UR (1, 2)));
|
||||
T (strncat (nd3, ns5, UR (2, 3)));
|
||||
T (strncat (nd3, ns5, UR (3, 4)));
|
||||
T (strncat (nd3, ns5, UR (4, 5))); /* { dg-warning "specified bound between 4 and 5 exceeds destination size 3" } */
|
||||
T (strncat (nd3, ns5, UR (4, 5))); /* { dg-warning "specified bound \\\[4, 5] exceeds destination size 3" } */
|
||||
|
||||
T (strncat (nd5, ns3, UR (0, 1)));
|
||||
T (strncat (nd5, ns3, UR (1, 2)));
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
// Test -Wsizeof-pointer-memaccess warnings.
|
||||
// { dg-do compile }
|
||||
// { dg-options "-Wall -Wno-array-bounds -Wno-sizeof-array-argument -Wno-stringop-overflow -Wno-stringop-truncation" }
|
||||
// { dg-options "-Wall -Wno-array-bounds -Wno-sizeof-array-argument -Wno-stringop-overflow -Wno-stringop-overread -Wno-stringop-truncation" }
|
||||
// Test just twice, once with -O0 non-fortified, once with -O2 fortified.
|
||||
// { dg-skip-if "" { *-*-* } { "*" } { "-O0" "-O2" } }
|
||||
// { dg-skip-if "" { *-*-* } { "-flto" } { "" } }
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
// Test -Wsizeof-pointer-memaccess warnings.
|
||||
// { dg-do compile }
|
||||
// { dg-options "-Wall -Wno-array-bounds -Wno-sizeof-array-argument -Wno-stringop-overflow -Wno-stringop-truncation" }
|
||||
// { dg-options "-Wall -Wno-array-bounds -Wno-sizeof-array-argument -Wno-stringop-overflow -Wno-stringop-overread -Wno-stringop-truncation" }
|
||||
// Test just twice, once with -O0 non-fortified, once with -O2 fortified,
|
||||
// suppressing buffer overflow warnings.
|
||||
// { dg-skip-if "" { *-*-* } { "*" } { "-O0" "-O2" } }
|
||||
|
||||
@ -21,65 +21,65 @@ char d[4];
|
||||
|
||||
void* test_memcpy_s0_1 (void *d)
|
||||
{
|
||||
return memcpy (d, s0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, s0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memcpy_s0_2 (void *d)
|
||||
{
|
||||
return memcpy (d, s0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, s0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memcpy_s0_0_1 (void *d)
|
||||
{
|
||||
return memcpy (d, s0_0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, s0_0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memcpy_s0_0_2 (void *d)
|
||||
{
|
||||
return memcpy (d, s0_0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, s0_0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
|
||||
void* test_memcpy_s0_1_1 (void *d)
|
||||
{
|
||||
return memcpy (d, s0_1, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, s0_1, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memcpy_s0_1_2 (void *d)
|
||||
{
|
||||
return memcpy (d, s0_1, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, s0_1, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
|
||||
void* test_memcpy_s1_0_1 (void *d)
|
||||
{
|
||||
return memcpy (d, s1_0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, s1_0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memcpy_s1_0_2 (void *d)
|
||||
{
|
||||
return memcpy (d, s1_0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, s1_0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
|
||||
void* test_memmove_s0_1 (void *d)
|
||||
{
|
||||
return memmove (d, s0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memmove (d, s0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memmove_s0_2 (void *d)
|
||||
{
|
||||
return memmove (d, s0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memmove (d, s0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memmove_s0_0_1 (void *d)
|
||||
{
|
||||
return memmove (d, s0_0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memmove (d, s0_0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memmove_s0_0_2 (void *d)
|
||||
{
|
||||
return memmove (d, s0_0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memmove (d, s0_0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
|
||||
@ -92,57 +92,57 @@ const struct Empty e1_0[1][0] = { };
|
||||
|
||||
void* test_memcpy_e_1 (void *d)
|
||||
{
|
||||
return memcpy (d, &e, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, &e, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memcpy_e0_1 (void *d)
|
||||
{
|
||||
return memcpy (d, e0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, e0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memcpy_e0_0_1 (void *d)
|
||||
{
|
||||
return memcpy (d, e0_0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, e0_0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memcpy_e0_1_1 (void *d)
|
||||
{
|
||||
return memcpy (d, e0_1, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, e0_1, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
void* test_memcpy_e1_0_1 (void *d)
|
||||
{
|
||||
return memcpy (d, e1_0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return memcpy (d, e1_0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
|
||||
char* test_strcpy_s0 (char *d)
|
||||
{
|
||||
return strcpy (d, s0); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return strcpy (d, s0); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
char* test_strcpy_s0_0 (char *d)
|
||||
{
|
||||
return strcpy (d, s0_0[0]); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return strcpy (d, s0_0[0]); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
|
||||
char* test_strncpy_s0_1 (char *d)
|
||||
{
|
||||
return strncpy (d, s0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return strncpy (d, s0, 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
char* test_strncpy_s0_2 (char *d)
|
||||
{
|
||||
return strncpy (d, s0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return strncpy (d, s0, 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
char* test_strncpy_s0_0_1 (char *d)
|
||||
{
|
||||
return strncpy (d, s0_0[0], 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return strncpy (d, s0_0[0], 1); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
char* test_strncpy_s0_0_2 (char *d)
|
||||
{
|
||||
return strncpy (d, s0_0[0], 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" } */
|
||||
return strncpy (d, s0_0[0], 2); /* { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
functions when -Wstringop-overflow is disabled is -Warray-bounds
|
||||
with the right wording.
|
||||
{ dg-do compile }
|
||||
{ dg-options "-O2 -Wall -Wno-stringop-overflow" } */
|
||||
{ dg-options "-O2 -Wall -Wno-stringop-overflow -Wno-stringop-overread" } */
|
||||
|
||||
#define PTRDIFF_MAX __PTRDIFF_MAX__
|
||||
#define SIZE_MAX __SIZE_MAX__
|
||||
|
||||
@ -15,8 +15,8 @@ void fa0_extern (void)
|
||||
{
|
||||
sink (strlen (ea0.a - 2)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (ea0.a - 1)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
sink (strlen (ea0.a)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
sink (strlen (ea0.a + 1)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (ea0.a)); // { dg-warning "\\\[-Wstringop-overread" "pr93514" }
|
||||
sink (strlen (ea0.a + 1)); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
}
|
||||
|
||||
static struct A0 sa0 = { 0 };
|
||||
@ -25,8 +25,8 @@ void fa0_static (void)
|
||||
{
|
||||
sink (strlen (sa0.a - 2)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (sa0.a - 1)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
sink (strlen (sa0.a)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
sink (strlen (sa0.a + 1)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (sa0.a)); // { dg-warning "\\\[-Wstringop-overread" "pr93514" }
|
||||
sink (strlen (sa0.a + 1)); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
}
|
||||
|
||||
|
||||
@ -52,23 +52,23 @@ void fax_static (void)
|
||||
sink (strlen (ax0.a - 2)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (ax0.a - 1)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
sink (strlen (ax0.a));
|
||||
sink (strlen (ax0.a + 1)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
sink (strlen (ax0.a + 2)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (ax0.a + 1)); // { dg-warning "\\\[-Wstringop-overread" "pr93514" }
|
||||
sink (strlen (ax0.a + 2)); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
|
||||
sink (strlen (ax1.a - 2)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (ax1.a - 1)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
sink (strlen (ax1.a));
|
||||
sink (strlen (ax1.a + 1));
|
||||
sink (strlen (ax1.a + 2)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
sink (strlen (ax1.a + 3)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (ax1.a + 2)); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" "pr93514" }
|
||||
sink (strlen (ax1.a + 3)); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
|
||||
sink (strlen (ax2.a - 2)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (ax2.a - 1)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
sink (strlen (ax2.a));
|
||||
sink (strlen (ax2.a + 1));
|
||||
sink (strlen (ax2.a + 2));
|
||||
sink (strlen (ax2.a + 3)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
sink (strlen (ax2.a + 4)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (ax2.a + 3)); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" "pr93514" }
|
||||
sink (strlen (ax2.a + 4)); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
|
||||
sink (strlen (ax3.a - 2)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (ax3.a - 1)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
@ -76,6 +76,6 @@ void fax_static (void)
|
||||
sink (strlen (ax3.a + 1));
|
||||
sink (strlen (ax3.a + 2));
|
||||
sink (strlen (ax3.a + 3));
|
||||
sink (strlen (ax3.a + 4)); // { dg-warning "\\\[-Warray-bounds" "pr93514" { xfail *-*-* } }
|
||||
sink (strlen (ax3.a + 5)); // { dg-warning "\\\[-Warray-bounds" }
|
||||
sink (strlen (ax3.a + 4)); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" "pr93514" }
|
||||
sink (strlen (ax3.a + 5)); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
}
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
/* Test -Wsizeof-pointer-memaccess warnings. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-Wall -Wno-array-bounds -Wno-sizeof-array-argument -Wno-stringop-overflow" } */
|
||||
/* { dg-options "-Wall -Wno-array-bounds -Wno-sizeof-array-argument -Wno-stringop-overflow -Wno-stringop-overread" } */
|
||||
/* { dg-require-effective-target alloca } */
|
||||
|
||||
typedef __SIZE_TYPE__ size_t;
|
||||
|
||||
@ -48,11 +48,18 @@ T (rindex, b + 4, '4'); // { dg-warning "missing terminating nul" "rindex" }
|
||||
T (stpcpy, d, a); // { dg-warning "missing terminating nul" "stpcpy" }
|
||||
|
||||
T (stpncpy, d, a, 4);
|
||||
T (stpncpy, d, a, 5); // { dg-warning "missing terminating nul" "stpncpy" }
|
||||
T (stpncpy, d, a, 5); // { dg-warning "specified bound 5 exceeds the size 4 of unterminated array" "stpncpy" }
|
||||
T (stpncpy, d, a, n);
|
||||
|
||||
T (stpncpy, d, a + n, 4);
|
||||
T (stpncpy, d, a + n, 5); // { dg-warning "missing terminating nul" "stpncpy" }
|
||||
/* When the offset into an unterminated array isn't known and the bound
|
||||
is less than the size of the array it suggests the access may be
|
||||
constrained just right. When the bound is exactly equal to the size
|
||||
of the array, then the offset would have to be zero for the access to
|
||||
be safe, so a warning is justified. Otherwise, the bound is too small
|
||||
and the access is definitely unsafe. */
|
||||
T (stpncpy, d, a + n, 3);
|
||||
T (stpncpy, d, a + n, 4); // { dg-warning "specified bound 4 may exceed the size of at most 4 of unterminated array" "stpncpy" }
|
||||
T (stpncpy, d, a + n, 5); // { dg-warning "specified bound 5 exceeds the size of at most 4 of unterminated array" "stpncpy" }
|
||||
|
||||
T (stpncpy, d, b, 4);
|
||||
T (stpncpy, d, b, 5);
|
||||
@ -67,7 +74,7 @@ T (stpncpy, d, b + 3, 5);
|
||||
T (stpncpy, d, b + 3, n);
|
||||
|
||||
T (stpncpy, d, b + 4, 1);
|
||||
T (stpncpy, d, b + 4, 2); // { dg-warning "missing terminating nul" "stpncpy" }
|
||||
T (stpncpy, d, b + 4, 2); // { dg-warning "specified bound 2 exceeds the size 1 of unterminated array" "stpncpy" }
|
||||
T (stpncpy, d, b + 4, n);
|
||||
/* The following might be worth warning about since it's only safe with
|
||||
n < 4. */
|
||||
@ -84,7 +91,7 @@ T (strcasecmp, b, b + 4); // { dg-warning "missing terminating nul" "strcasecm
|
||||
T (strcat, d, a); // { dg-warning "missing terminating nul" "strcat" }
|
||||
|
||||
T (strncat, d, a, 4);
|
||||
T (strncat, d, a, 5); // { dg-warning "missing terminating nul" "strncat" }
|
||||
T (strncat, d, a, 5); // { dg-warning "specified bound 5 exceeds the size 4 of unterminated array" "strncat" }
|
||||
T (strncat, d, a, n);
|
||||
|
||||
T (strncat, d, b, n);
|
||||
@ -93,7 +100,7 @@ T (strncat, d, b + 2, n);
|
||||
T (strncat, d, b + 3, n);
|
||||
T (strncat, d, b + 4, 0);
|
||||
T (strncat, d, b + 4, 1);
|
||||
T (strncat, d, b + 4, 2); // { dg-warning "missing terminating nul" "strncat" }
|
||||
T (strncat, d, b + 4, 2); // { dg-warning "specified bound 2 exceeds the size 1 of unterminated array" "strncat" }
|
||||
/* The following should probably trigger a warning since it's only safe
|
||||
when n < 2, makes little sense with n == 0, and not much more with
|
||||
n == 1. */
|
||||
@ -122,8 +129,8 @@ T (strncmp, s, a, 4);
|
||||
/* The warning below is not issued because GCC folds strncmp calls with
|
||||
the same arguments to zero before it checks for the missing nul. */
|
||||
T (strncmp, a, a, 5); // { dg-warning "missing terminating nul" "pr92624" { xfail *-*-*} }
|
||||
T (strncmp, a, s, 5); // { dg-warning "missing terminating nul" "strcmp" }
|
||||
T (strncmp, s, a, 5); // { dg-warning "missing terminating nul" "strcmp" }
|
||||
T (strncmp, a, s, 5); // { dg-warning "specified bound 5 exceeds the size 4 of unterminated array" "strcmp" }
|
||||
T (strncmp, s, a, 5); // { dg-warning "specified bound 5 exceeds the size 4 of unterminated array" "strcmp" }
|
||||
|
||||
T (strcpy, d, a); // { dg-warning "missing terminating nul" "strcpy" }
|
||||
|
||||
@ -136,10 +143,10 @@ T (strspn, s, a); // { dg-warning "missing terminating nul" "strcspn"
|
||||
T (strdup, a); // { dg-warning "missing terminating nul" "strdup" }
|
||||
|
||||
T (strndup, a, 4);
|
||||
T (strndup, a, 5); // { dg-warning "missing terminating nul" "strndup" }
|
||||
T (strndup, a, 5); // { dg-warning "specified bound 5 exceeds the size 4 of unterminated array" "strndup" }
|
||||
T (strndup, b + 3, 2);
|
||||
T (strndup, b + 4, 1);
|
||||
T (strndup, b + 4, 2); // { dg-warning "missing terminating nul" "strndup" }
|
||||
T (strndup, b + 4, 2); // { dg-warning "specified bound 2 exceeds the size 1 of unterminated array" "strndup" }
|
||||
|
||||
T (strlen, a); // { dg-warning "missing terminating nul" "strlen" }
|
||||
|
||||
@ -161,11 +168,12 @@ T (__stpcpy_chk, d, a, -1); // { dg-warning "missing terminating nul"
|
||||
|
||||
|
||||
T (__stpncpy_chk, d, a, 4, -1);
|
||||
T (__stpncpy_chk, d, a, 5, -1); // { dg-warning "missing terminating nul" "stpncpy_chk" }
|
||||
T (__stpncpy_chk, d, a, 5, -1); // { dg-warning "specified bound 5 exceeds the size 4 of unterminated array" "stpncpy_chk" }
|
||||
T (__stpncpy_chk, d, a, n, -1);
|
||||
|
||||
T (__stpncpy_chk, d, a + n, 4, -1);
|
||||
T (__stpncpy_chk, d, a + n, 5, -1); // { dg-warning "missing terminating nul" "stpncpy_chk" }
|
||||
T (__stpncpy_chk, d, a + n, 3, -1);
|
||||
T (__stpncpy_chk, d, a + n, 4, -1); // { dg-warning "specified bound 4 may exceed the size of at most 4 of unterminated array" "stpncpy_chk" }
|
||||
T (__stpncpy_chk, d, a + n, 5, -1); // { dg-warning "specified bound 5 exceeds the size of at most 4 of unterminated array" "stpncpy_chk" }
|
||||
|
||||
T (__stpncpy_chk, d, b, 4, -1);
|
||||
T (__stpncpy_chk, d, b, 5, -1);
|
||||
@ -180,16 +188,17 @@ T (__stpncpy_chk, d, b + 3, 5, -1);
|
||||
T (__stpncpy_chk, d, b + 3, n, -1);
|
||||
|
||||
T (__stpncpy_chk, d, b + 4, 1, -1);
|
||||
T (__stpncpy_chk, d, b + 4, 2, -1); // { dg-warning "missing terminating nul" "stpncpy_chk" }
|
||||
T (__stpncpy_chk, d, b + 4, 2, -1); // { dg-warning "specified bound 2 exceeds the size 1 of unterminated array" "stpncpy_chk" }
|
||||
T (__stpncpy_chk, d, b + 4, n, -1);
|
||||
|
||||
|
||||
T (__strncat_chk, d, a, 4, -1);
|
||||
T (__strncat_chk, d, a, 5, -1); // { dg-warning "missing terminating nul" "strncat_chk" }
|
||||
T (__strncat_chk, d, a, 5, -1); // { dg-warning "specified bound 5 exceeds the size 4 of unterminated array" "strncat_chk" }
|
||||
T (__strncat_chk, d, a, n, -1);
|
||||
|
||||
T (__strncat_chk, d, a + n, 4, -1);
|
||||
T (__strncat_chk, d, a + n, 5, -1); // { dg-warning "missing terminating nul" "strncat_chk" }
|
||||
T (__strncat_chk, d, a + n, 3, -1);
|
||||
T (__strncat_chk, d, a + n, 4, -1); // { dg-warning "specified bound 4 may exceed the size of at most 4 of unterminated array" "strncat_chk" }
|
||||
T (__strncat_chk, d, a + n, 5, -1); // { dg-warning "specified bound 5 exceeds the size of at most 4 of unterminated array" "strncat_chk" }
|
||||
|
||||
T (__strncat_chk, d, b, 4, -1);
|
||||
T (__strncat_chk, d, b, 5, -1);
|
||||
@ -204,16 +213,17 @@ T (__strncat_chk, d, b + 3, 5, -1);
|
||||
T (__strncat_chk, d, b + 3, n, -1);
|
||||
|
||||
T (__strncat_chk, d, b + 4, 1, -1);
|
||||
T (__strncat_chk, d, b + 4, 2, -1); // { dg-warning "missing terminating nul" "strncat_chk" }
|
||||
T (__strncat_chk, d, b + 4, 2, -1); // { dg-warning "specified bound 2 exceeds the size 1 of unterminated array" "strncat_chk" }
|
||||
T (__strncat_chk, d, b + 4, n, -1);
|
||||
|
||||
|
||||
T (__strncpy_chk, d, a, 4, -1);
|
||||
T (__strncpy_chk, d, a, 5, -1); // { dg-warning "missing terminating nul" "strncpy_chk" }
|
||||
T (__strncpy_chk, d, a, 5, -1); // { dg-warning "specified bound 5 exceeds the size 4 of unterminated array" "strncpy_chk" }
|
||||
T (__strncpy_chk, d, a, n, -1);
|
||||
|
||||
T (__strncpy_chk, d, a + n, 4, -1);
|
||||
T (__strncpy_chk, d, a + n, 5, -1); // { dg-warning "missing terminating nul" "strncpy_chk" }
|
||||
T (__strncpy_chk, d, a + n, 3, -1);
|
||||
T (__strncpy_chk, d, a + n, 4, -1); // { dg-warning "specified bound 4 may exceed the size of at most 4 of unterminated array" "strncpy_chk" }
|
||||
T (__strncpy_chk, d, a + n, 5, -1); // { dg-warning "specified bound 5 exceeds the size of at most 4 of unterminated array" "strncpy_chk" }
|
||||
|
||||
T (__strncpy_chk, d, b, 4, -1);
|
||||
T (__strncpy_chk, d, b, 5, -1);
|
||||
@ -228,7 +238,7 @@ T (__strncpy_chk, d, b + 3, 5, -1);
|
||||
T (__strncpy_chk, d, b + 3, n, -1);
|
||||
|
||||
T (__strncpy_chk, d, b + 4, 1, -1);
|
||||
T (__strncpy_chk, d, b + 4, 2, -1); // { dg-warning "missing terminating nul" "strncpy" }
|
||||
T (__strncpy_chk, d, b + 4, 2, -1); // { dg-warning "specified bound 2 exceeds the size 1 of unterminated array" "strncpy" }
|
||||
T (__strncpy_chk, d, b + 4, n, -1);
|
||||
|
||||
|
||||
|
||||
@ -7,7 +7,7 @@ void fcst (char *d)
|
||||
{
|
||||
char a[2] = "0";
|
||||
|
||||
__builtin_strcpy (d, a + 3); // { dg-warning "\\\[-W(array-bounds|stringop-overflow)" }
|
||||
__builtin_strcpy (d, a + 3); // { dg-warning "\\\[-W(array-bounds|stringop-overread)" }
|
||||
}
|
||||
|
||||
void frng (char *d, int i)
|
||||
@ -17,14 +17,14 @@ void frng (char *d, int i)
|
||||
if (i < 3)
|
||||
i = 3;
|
||||
|
||||
__builtin_strcpy (d, a + i); // { dg-warning "\\\[-W(array-bounds|stringop-overflow)" }
|
||||
__builtin_strcpy (d, a + i); // { dg-warning "\\\[-W(array-bounds|stringop-overread)" }
|
||||
}
|
||||
|
||||
void gcst (char *d)
|
||||
{
|
||||
char a[2] = "0";
|
||||
|
||||
__builtin_strcpy (d, a + 2); // { dg-warning "\\\[-W(array-bounds|stringop-overflow)" }
|
||||
__builtin_strcpy (d, a + 2); // { dg-warning "\\\[-W(array-bounds|stringop-overread)" }
|
||||
}
|
||||
|
||||
void grng (char *d, int i)
|
||||
@ -34,7 +34,7 @@ void grng (char *d, int i)
|
||||
if (i < 2)
|
||||
i = 2;
|
||||
|
||||
__builtin_strcpy (d, a + i); // { dg-warning "\\\[-W(array-bounds|stringop-overflow)" }
|
||||
__builtin_strcpy (d, a + i); // { dg-warning "\\\[-W(array-bounds|stringop-overread)" }
|
||||
}
|
||||
|
||||
/* { dg-prune-output "-Wuninitialized" } */
|
||||
|
||||
@ -63,10 +63,10 @@ void test_strncpy (void)
|
||||
|
||||
char* test_strndup (void)
|
||||
{
|
||||
return strndup (s, SIZE_MAX - 5); /* { dg-warning ".strndup. specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+ \\\[-Wstringop-overflow=\\\]" } */
|
||||
return strndup (s, SIZE_MAX - 5); /* { dg-warning ".strndup. specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+ \\\[-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
size_t test_strnlen (void)
|
||||
{
|
||||
return strnlen (s, SIZE_MAX - 6); /* { dg-warning ".strnlen. specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+ \\\[-Wstringop-overflow=\\\]" } */
|
||||
return strnlen (s, SIZE_MAX - 6); /* { dg-warning ".strnlen. specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+ \\\[-Wstringop-overread" } */
|
||||
}
|
||||
|
||||
117
gcc/testsuite/gcc.dg/Wstringop-overread-2.c
Normal file
117
gcc/testsuite/gcc.dg/Wstringop-overread-2.c
Normal file
@ -0,0 +1,117 @@
|
||||
/* Verify -Wstringop-overread is issued for reading more than the maximum
|
||||
object size but not for writing.
|
||||
{ dg-do compile }
|
||||
{ dg-options "-O2 -Wno-stringop-overflow -ftrack-macro-expansion=0" } */
|
||||
|
||||
#define PTRDIFF_MAX __PTRDIFF_MAX__
|
||||
#define SIZE_MAX __SIZE_MAX__
|
||||
|
||||
#define NOIPA __attribute__ ((noipa))
|
||||
|
||||
typedef __SIZE_TYPE__ size_t;
|
||||
|
||||
void* memchr (const void*, int, size_t);
|
||||
int memcmp (const void*, const void*, size_t);
|
||||
void* memcpy (const void*, const void*, size_t);
|
||||
|
||||
int strncmp (const char*, const char*, size_t);
|
||||
char* strncat (char*, const char*, size_t);
|
||||
char* strncpy (char*, const char*, size_t);
|
||||
size_t strnlen (const char*, size_t);
|
||||
|
||||
void sink (int, ...);
|
||||
#define sink(...) sink (0, __VA_ARGS__)
|
||||
#define T(exp) sink (exp)
|
||||
|
||||
NOIPA void test_memchr (const void *p, int x)
|
||||
{
|
||||
size_t dmax = PTRDIFF_MAX;
|
||||
size_t smax = SIZE_MAX;
|
||||
|
||||
T (memchr (p, x, dmax));
|
||||
|
||||
T (memchr (p, x, dmax + 1)); // { dg-warning "specified bound \[0-9\]+ exceeds maximum object size" }
|
||||
T (memchr (p, x, dmax * 2)); // { dg-warning "specified bound \[0-9\]+ exceeds maximum object size" }
|
||||
T (memchr (p, x, smax)); // { dg-warning "\\\[-Wstringop-overread" }
|
||||
}
|
||||
|
||||
|
||||
NOIPA void test_memcmp (const void *p, const void *q)
|
||||
{
|
||||
size_t dmax = PTRDIFF_MAX;
|
||||
size_t smax = SIZE_MAX;
|
||||
|
||||
T (memcmp (p, q, dmax));
|
||||
|
||||
T (memcmp (p, q, dmax + 1)); // { dg-warning "specified bound \[0-9\]+ exceeds maximum object size" }
|
||||
T (memcmp (p, q, dmax * 2)); // { dg-warning "specified bound \[0-9\]+ exceeds maximum object size" }
|
||||
T (memcmp (p, q, smax)); // { dg-warning "\\\[-Wstringop-overread" }
|
||||
}
|
||||
|
||||
|
||||
NOIPA void test_memcpy (void *p, const void *q)
|
||||
{
|
||||
size_t dmax = PTRDIFF_MAX;
|
||||
size_t smax = SIZE_MAX;
|
||||
|
||||
T (memcpy (p, q, dmax));
|
||||
|
||||
T (memcpy (p, q, dmax + 1)); // -Wstringop-overflow disabled
|
||||
T (memcpy (p, q, dmax * 2)); // ditto
|
||||
T (memcpy (p, q, smax)); // ditto
|
||||
}
|
||||
|
||||
|
||||
NOIPA void test_strncmp (const char *p, const char *q)
|
||||
{
|
||||
size_t dmax = PTRDIFF_MAX;
|
||||
size_t smax = SIZE_MAX;
|
||||
|
||||
T (strncmp (p, q, dmax));
|
||||
|
||||
T (strncmp (p, q, dmax + 1)); // { dg-warning "specified bound \[0-9\]+ exceeds maximum object size" "strncmp" }
|
||||
T (strncmp (p, q, dmax * 2)); // { dg-warning "\\\[-Wstringop-overread" "strncmp" }
|
||||
T (strncmp (p, q, smax)); // { dg-warning "\\\[-Wstringop-overread" "strncmp" }
|
||||
}
|
||||
|
||||
NOIPA void test_strncat (char *p, const char *q)
|
||||
{
|
||||
size_t dmax = PTRDIFF_MAX;
|
||||
size_t smax = SIZE_MAX;
|
||||
|
||||
T (strncat (p, q, dmax));
|
||||
|
||||
T (strncat (p, q, dmax + 1)); // { dg-warning "specified bound \[0-9\]+ exceeds maximum object size" }
|
||||
T (strncat (p, q, dmax * 2)); // { dg-warning "\\\[-Wstringop-overread" }
|
||||
T (strncat (p, q, smax)); // { dg-warning "\\\[-Wstringop-overread" }
|
||||
}
|
||||
|
||||
NOIPA void test_strncpy (char *p, const char *q)
|
||||
{
|
||||
#if 0
|
||||
/* Disabled: strncpy calls with an excissve bound trigger both
|
||||
-Wstringop-overflow and, when the former option is disabled,
|
||||
-Wstringop-overread. The latter should probably not trigger. */
|
||||
|
||||
size_t dmax = PTRDIFF_MAX;
|
||||
size_t smax = SIZE_MAX;
|
||||
|
||||
T (strncpy (p, q, dmax));
|
||||
|
||||
T (strncpy (p, q, dmax + 1)); // -Wstringop-overflow disabled
|
||||
T (strncpy (p, q, dmax * 2)); // ditto
|
||||
T (strncpy (p, q, smax)); // ditto
|
||||
#endif
|
||||
}
|
||||
|
||||
NOIPA void test_strnlen (const char *p)
|
||||
{
|
||||
size_t dmax = PTRDIFF_MAX;
|
||||
size_t smax = SIZE_MAX;
|
||||
|
||||
T (strnlen (p, dmax));
|
||||
|
||||
T (strnlen (p, dmax + 1)); // { dg-warning "specified bound \[0-9\]+ exceeds maximum object size" }
|
||||
T (strnlen (p, dmax * 2)); // { dg-warning "\\\[-Wstringop-overread" }
|
||||
T (strnlen (p, smax)); // { dg-warning "\\\[-Wstringop-overread" }
|
||||
}
|
||||
716
gcc/testsuite/gcc.dg/Wstringop-overread.c
Normal file
716
gcc/testsuite/gcc.dg/Wstringop-overread.c
Normal file
@ -0,0 +1,716 @@
|
||||
/* Verify -Wstringop-overread is issued appropriately.
|
||||
{ dg-do compile }
|
||||
{ dg-options "-O2 -ftrack-macro-expansion=0" } */
|
||||
|
||||
typedef __SIZE_TYPE__ size_t;
|
||||
|
||||
// <libint.h> functions.
|
||||
|
||||
char* gettext (const char *);
|
||||
|
||||
// <stdio.h> functions.
|
||||
|
||||
int puts (const char*);
|
||||
int puts_unlocked (const char*);
|
||||
|
||||
// <string.h> functions.
|
||||
|
||||
char* strchr (const char*, int);
|
||||
|
||||
int strcmp (const char*, const char*);
|
||||
int strncmp (const char*, const char*, size_t);
|
||||
|
||||
char* strcat (char*, const char*);
|
||||
char* strcpy (char*, const char*);
|
||||
char* strncpy (char*, const char*, size_t);
|
||||
char* strdup (const char*);
|
||||
char* strndup (const char*, size_t);
|
||||
|
||||
char* strpbrk (char*, const char*);
|
||||
size_t strcspn (const char*, const char*);
|
||||
size_t strspn (const char*, const char*);
|
||||
char* strstr (char*, const char*);
|
||||
|
||||
size_t strlen (const char*);
|
||||
size_t strnlen (const char*, size_t);
|
||||
|
||||
|
||||
void sink (int, ...);
|
||||
#define sink(...) sink (0, __VA_ARGS__)
|
||||
|
||||
extern char *d;
|
||||
extern char a0[0]; // { dg-message "source object 'a0'" }
|
||||
extern char a1[1]; // { dg-message "source object 'a1'" }
|
||||
extern char a2[2]; // { dg-message "source object 'a2'" }
|
||||
|
||||
extern char b1[1];
|
||||
extern char b2[2];
|
||||
extern char bx[];
|
||||
|
||||
const char s0[0] = { }; // { dg-message "source object 's0'" }
|
||||
const char s1[1] = ""; // { dg-message "source object 's1'" }
|
||||
const char s2[2] = "1"; // { dg-message "source object 's2'" }
|
||||
|
||||
#define T(x) sink (0, (x))
|
||||
|
||||
|
||||
void test_strcat_array (const char *s, int i, int i0)
|
||||
{
|
||||
if (i0 < 0)
|
||||
i0 = 0;
|
||||
|
||||
T (strcat (d, a0)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, a0 + i)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, a0 + i + 1)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strcat (d, a0 + i0)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strcat (d, a1));
|
||||
T (strcat (d, a1 + 1)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, a1 + i));
|
||||
T (strcat (d, a1 + i + 1));
|
||||
|
||||
T (strcat (d, a1 + i0));
|
||||
T (strcat (d, a1 + i0 + 1)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strcat (d, a2));
|
||||
T (strcat (d, a2 + 1));
|
||||
T (strcat (d, a2 + 2)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, a2 + i));
|
||||
T (strcat (d, a2 + i + 2));
|
||||
|
||||
T (strcat (d, a2 + i0));
|
||||
T (strcat (d, a2 + i0 + 1));
|
||||
T (strcat (d, a2 + i0 + 2)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
// Repeat the above with the arguments reversed.
|
||||
|
||||
T (strcat (a0, s)); // { dg-warning "'strcat' writing 1 or more bytes into a region of size 0" }
|
||||
T (strcat (a0 + i, s)); // { dg-warning "'strcat' writing 1 or more bytes into a region of size 0" }
|
||||
T (strcat (a0 + i + 1, s)); // { dg-warning "'strcat' writing 1 or more bytes into a region of size 0" }
|
||||
|
||||
T (strcat (a0 + i0, s)); // { dg-warning "'strcat' writing 1 or more bytes into a region of size 0" }
|
||||
|
||||
T (strcat (a1, s));
|
||||
T (strcat (a1 + 1, s)); // { dg-warning "'strcat' writing 1 or more bytes into a region of size 0" }
|
||||
T (strcat (a1 + i, s));
|
||||
T (strcat (a1 + i + 1, s));
|
||||
|
||||
T (strcat (a1 + i0, s));
|
||||
T (strcat (a1 + i0 + 1, s)); // { dg-warning "'strcat' writing 1 or more bytes into a region of size 0" }
|
||||
|
||||
T (strcat (a2, s));
|
||||
T (strcat (a2 + 1, s));
|
||||
T (strcat (a2 + 2, s)); // { dg-warning "'strcat' writing 1 or more bytes into a region of size 0" }
|
||||
T (strcat (a2 + i, s));
|
||||
T (strcat (a2 + i + 2, s));
|
||||
|
||||
T (strcat (a2 + i0, s));
|
||||
T (strcat (a2 + i0 + 1, s));
|
||||
T (strcat (a2 + i0 + 2, s)); // { dg-warning "'strcat' writing 1 or more bytes into a region of size 0" }
|
||||
}
|
||||
|
||||
void test_strcat_literal (int i)
|
||||
{
|
||||
T (strcat (d, ""));
|
||||
T (strcat (d, "" + 0));
|
||||
T (strcat (d, "" + i));
|
||||
|
||||
T (strcat (d, "1"));
|
||||
T (strcat (d, "1" + 1));
|
||||
T (strcat (d, "1" + 2)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, "1" + i));
|
||||
|
||||
T (strcat (d, "12"));
|
||||
T (strcat (d, "12" + 1));
|
||||
T (strcat (d, "12" + 2));
|
||||
T (strcat (d, "12" + 3)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, "12" + i));
|
||||
}
|
||||
|
||||
void test_strcat_string (int i)
|
||||
{
|
||||
T (strcat (d, s0)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, s0 + 1)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, s0 + i)); // { dg-warning "'strcat' (reading 1 or more bytes from a region of size 0|argument missing terminating nul)" }
|
||||
|
||||
T (strcat (d, s1));
|
||||
T (strcat (d, s1 + 1)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, s1 + 2)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, s1 + i));
|
||||
|
||||
T (strcat (d, s2));
|
||||
T (strcat (d, s2 + 1));
|
||||
T (strcat (d, s2 + 2)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, s2 + 3)); // { dg-warning "'strcat' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcat (d, s2 + i));
|
||||
}
|
||||
|
||||
|
||||
void test_strcpy_array (int i, int i0)
|
||||
{
|
||||
if (i0 < 0)
|
||||
i0 = 0;
|
||||
|
||||
T (strcpy (d, a0)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, a0 + i)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, a0 + i + 1)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strcpy (d, a0 + i0)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strcpy (d, a1));
|
||||
T (strcpy (d, a1 + 1)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, a1 + i));
|
||||
T (strcpy (d, a1 + i + 1));
|
||||
|
||||
T (strcpy (d, a1 + i0));
|
||||
T (strcpy (d, a1 + i0 + 1)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strcpy (d, a2));
|
||||
T (strcpy (d, a2 + 1));
|
||||
T (strcpy (d, a2 + 2)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, a2 + i));
|
||||
T (strcpy (d, a2 + i + 2));
|
||||
|
||||
T (strcpy (d, a2 + i0));
|
||||
T (strcpy (d, a2 + i0 + 1));
|
||||
T (strcpy (d, a2 + i0 + 2)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
}
|
||||
|
||||
void test_strcpy_literal (int i)
|
||||
{
|
||||
T (strcpy (d, ""));
|
||||
T (strcpy (d, "" + 0));
|
||||
T (strcpy (d, "" + i));
|
||||
|
||||
T (strcpy (d, "1"));
|
||||
T (strcpy (d, "1" + 1));
|
||||
T (strcpy (d, "1" + 2)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, "1" + i));
|
||||
|
||||
T (strcpy (d, "12"));
|
||||
T (strcpy (d, "12" + 1));
|
||||
T (strcpy (d, "12" + 2));
|
||||
T (strcpy (d, "12" + 3)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, "12" + i));
|
||||
}
|
||||
|
||||
void test_strcpy_string (int i)
|
||||
{
|
||||
T (strcpy (d, s0)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, s0 + 1)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, s0 + i)); // { dg-warning "'strcpy' (reading 1 or more bytes from a region of size 0|argument missing terminating nul)" }
|
||||
|
||||
T (strcpy (d, s1));
|
||||
T (strcpy (d, s1 + 1)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, s1 + 2)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, s1 + i));
|
||||
|
||||
T (strcpy (d, s2));
|
||||
T (strcpy (d, s2 + 1));
|
||||
T (strcpy (d, s2 + 2)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, s2 + 3)); // { dg-warning "'strcpy' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcpy (d, s2 + i));
|
||||
}
|
||||
|
||||
|
||||
void test_strncpy_array (int i)
|
||||
{
|
||||
T (strncpy (d, a0, 0));
|
||||
T (strncpy (d, a0, 1)); // { dg-warning "'strncpy' reading 1 byte from a region of size 0" }
|
||||
T (strncpy (d, a0 + i, 0));
|
||||
T (strncpy (d, a0 + i, 1)); // { dg-warning "'strncpy' reading 1 byte from a region of size 0" }
|
||||
|
||||
T (strncpy (d, a1, 0));
|
||||
T (strncpy (d, a1, 1));
|
||||
T (strncpy (d, a1 + 1, 0));
|
||||
T (strncpy (d, a1 + 1, 1)); // { dg-warning "'strncpy' reading 1 byte from a region of size 0" }
|
||||
T (strncpy (d, a1 + i, 0));
|
||||
T (strncpy (d, a1 + i, 1));
|
||||
T (strncpy (d, a1 + i, 2));
|
||||
}
|
||||
|
||||
|
||||
void test_strncpy_literal (int i, int i0)
|
||||
{
|
||||
if (i0 < 0)
|
||||
i0 = 0;
|
||||
|
||||
T (strncpy (d, "", 0));
|
||||
T (strncpy (d, "", 1));
|
||||
T (strncpy (d, "", 2));
|
||||
|
||||
T (strncpy (d, "" + i, 0));
|
||||
T (strncpy (d, "" + i, 1));
|
||||
T (strncpy (d, "" + i0, 1));
|
||||
T (strncpy (d, "" + i0, 1));
|
||||
|
||||
T (strncpy (d, "" + 1, 0));
|
||||
T (strncpy (d, "" + 1, 1)); // { dg-warning "'strncpy' reading 1 byte from a region of size 0" }
|
||||
|
||||
T (strncpy (d, "1", 0));
|
||||
T (strncpy (d, "1" + 1, 0));
|
||||
T (strncpy (d, "1" + 1, 1));
|
||||
T (strncpy (d, "1" + 1, 2));
|
||||
T (strncpy (d, "1" + i, 2));
|
||||
|
||||
T (strncpy (d, "1" + 2, 0));
|
||||
T (strncpy (d, "1" + 2, 1)); // { dg-warning "'strncpy' reading 1 byte from a region of size 0" }
|
||||
}
|
||||
|
||||
|
||||
void test_strlen_array (int i, int i0)
|
||||
{
|
||||
if (i0 < 0)
|
||||
i0 = 0;
|
||||
|
||||
T (strlen (a0)); // { dg-warning "'strlen' reading 1 or more bytes from a region of size 0" }
|
||||
T (strlen (a0 + i)); // { dg-warning "'strlen' reading 1 or more bytes from a region of size 0" }
|
||||
T (strlen (a0 + i + 1)); // { dg-warning "'strlen' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strlen (a0 + i0)); // { dg-warning "'strlen' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strlen (a1));
|
||||
T (strlen (a1 + 1)); // { dg-warning "'strlen' reading 1 or more bytes from a region of size 0" }
|
||||
T (strlen (a1 + i));
|
||||
T (strlen (a1 + i + 1));
|
||||
|
||||
T (strlen (a1 + i0));
|
||||
T (strlen (a1 + i0 + 1)); // { dg-warning "'strlen' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strlen (a2));
|
||||
T (strlen (a2 + 1));
|
||||
T (strlen (a2 + 2)); // { dg-warning "'strlen' reading 1 or more bytes from a region of size 0" }
|
||||
T (strlen (a2 + i));
|
||||
T (strlen (a2 + i + 2));
|
||||
|
||||
T (strlen (a2 + i0));
|
||||
T (strlen (a2 + i0 + 1));
|
||||
T (strlen (a2 + i0 + 2)); // { dg-warning "'strlen' reading 1 or more bytes from a region of size 0" }
|
||||
}
|
||||
|
||||
|
||||
void test_strnlen_array (int i, int i0, unsigned n)
|
||||
{
|
||||
if (i0 < 0)
|
||||
i0 = 0;
|
||||
|
||||
T (strnlen (a0, 0));
|
||||
T (strnlen (a0, 1)); // { dg-warning "'strnlen' (reading 1 byte from a region of size 0|specified bound 1 exceeds source size 0)" }
|
||||
T (strnlen (a0, i0));
|
||||
T (strnlen (a0, i0 + 1)); // { dg-warning "'strnlen' (reading between 1 and \[0-9\]+ bytes from a region of size 0|specified bound \\\[1, \[0-9\]+\\\] exceeds source size 0)" }
|
||||
T (strnlen (a0, n));
|
||||
T (strnlen (a0 + i, 0));
|
||||
T (strnlen (a0 + i, 1)); // { dg-warning "'strnlen' (reading 1 byte from a region of size 0|specified bound 1 exceeds source size 0)" }
|
||||
T (strnlen (a0 + i, i0));
|
||||
T (strnlen (a0 + i, n));
|
||||
T (strnlen (a0 + i + 1, 0));
|
||||
T (strnlen (a0 + i + 1, 1)); // { dg-warning "'strnlen' (reading 1 byte from a region of size 0|specified bound 1 exceeds source size 0)" }
|
||||
|
||||
T (strnlen (a0 + i0, 0));
|
||||
T (strnlen (a0 + i0, 1)); // { dg-warning "'strnlen' (reading 1 byte from a region of size 0|specified bound 1 exceeds source size 0)" }
|
||||
T (strnlen (a0 + i0, n));
|
||||
|
||||
T (strnlen (a1, 0));
|
||||
T (strnlen (a1, 1));
|
||||
T (strnlen (a1, 2)); // { dg-warning "'strnlen' specified bound 2 exceeds source size 1" "pr87492" { xfail *-*-* } }
|
||||
T (strnlen (a1, n));
|
||||
|
||||
T (strnlen (a1 + 1, 0));
|
||||
T (strnlen (a1 + 1, 1)); // { dg-warning "'strnlen' reading 1 byte from a region of size 0" }
|
||||
T (strnlen (a1 + 1, i0));
|
||||
T (strnlen (a1 + 1, i0 + 1)); // { dg-warning "'strnlen' reading between 1 and \[0-9\]+ bytes from a region of size 0" }
|
||||
T (strnlen (a1 + 1, n));
|
||||
T (strnlen (a1 + i, 0));
|
||||
T (strnlen (a1 + i, 1));
|
||||
T (strnlen (a1 + i, 2)); // { dg-warning "'strnlen' specified bound 2 exceeds source size 1" }
|
||||
T (strnlen (a1 + i, n));
|
||||
T (strnlen (a1 + i + 1, 0));
|
||||
T (strnlen (a1 + i + 1, 1));
|
||||
T (strnlen (a1 + i + 1, 2)); // { dg-warning "'strnlen' specified bound 2 exceeds source size 1" }
|
||||
T (strnlen (a1 + i + 1, n));
|
||||
|
||||
T (strnlen (a1 + i0, 0));
|
||||
T (strnlen (a1 + i0, 1));
|
||||
T (strnlen (a1 + i0, 2)); // { dg-warning "'strnlen' specified bound 2 exceeds source size 1" }
|
||||
T (strnlen (a1 + i0, n));
|
||||
T (strnlen (a1 + i0 + 1, 0));
|
||||
T (strnlen (a1 + i0 + 1, 1)); // { dg-warning "'strnlen' reading 1 byte from a region of size 0" }
|
||||
T (strnlen (a1 + i0 + 1, n));
|
||||
|
||||
T (strnlen (a2, 0));
|
||||
T (strnlen (a2, 1));
|
||||
T (strnlen (a2, 2));
|
||||
T (strnlen (a2, n));
|
||||
T (strnlen (a2 + 1, 0));
|
||||
T (strnlen (a2 + 1, 1));
|
||||
T (strnlen (a2 + 1, 2)); // { dg-warning "'strnlen' specified bound 2 exceeds source size 1" "pr87492" { xfail *-*-* } }
|
||||
T (strnlen (a2 + 1, n));
|
||||
T (strnlen (a2 + 2, 0));
|
||||
T (strnlen (a2 + 2, 1)); // { dg-warning "'strnlen' reading 1 byte from a region of size 0" }
|
||||
T (strnlen (a2 + 2, n));
|
||||
T (strnlen (a2 + i, 0));
|
||||
T (strnlen (a2 + i, 1));
|
||||
T (strnlen (a2 + i, 2));
|
||||
T (strnlen (a2 + i + 2, 0));
|
||||
T (strnlen (a2 + i + 2, 1));
|
||||
T (strnlen (a2 + i + 2, 2));
|
||||
T (strnlen (a2 + i + 2, n));
|
||||
|
||||
T (strnlen (a2 + i0, 0));
|
||||
T (strnlen (a2 + i0, 1));
|
||||
T (strnlen (a2 + i0, 2));
|
||||
T (strnlen (a2 + i0, 3)); // { dg-warning "'strnlen' specified bound 3 exceeds source size 2" }
|
||||
T (strnlen (a2 + i0, n));
|
||||
|
||||
T (strnlen (a2 + i0 + 1, 0));
|
||||
T (strnlen (a2 + i0 + 1, 1));
|
||||
T (strnlen (a2 + i0 + 1, 2));
|
||||
T (strnlen (a2 + i0 + 1, n));
|
||||
|
||||
T (strnlen (a2 + i0 + 2, 0));
|
||||
T (strnlen (a2 + i0 + 2, 1)); // { dg-warning "'strnlen' reading 1 byte from a region of size 0" }
|
||||
T (strnlen (a2 + i0 + 2, i0));
|
||||
T (strnlen (a2 + i0 + 2, i0 + 1)); // { dg-warning "'strnlen' reading between 1 and \[0-9\]+ bytes from a region of size 0" }
|
||||
T (strnlen (a2 + i0 + 2, n));
|
||||
}
|
||||
|
||||
|
||||
void test_strcmp_array (const char *s, int i)
|
||||
{
|
||||
T (strcmp (a0, "")); // { dg-warning "'strcmp' reading 1 or more bytes from a region of size 0" "pr?????" { xfail *-*-* } }
|
||||
|
||||
T (strcmp (a0, s)); // { dg-warning "'strcmp' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcmp (a0 + i, s)); // { dg-warning "'strcmp' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strcmp (a1, s));
|
||||
T (strcmp (a1 + 1, s)); // { dg-warning "'strcmp' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcmp (a1 + i, s));
|
||||
T (strcmp (a1 + i + 1, s));
|
||||
|
||||
|
||||
// Repeat the above with the arguments reversed.
|
||||
|
||||
T (strcmp ("", a0)); // { dg-warning "'strcmp' reading 1 or more bytes from a region of size 0" "pr?????" { xfail *-*-*} }
|
||||
|
||||
T (strcmp (s, a0)); // { dg-warning "'strcmp' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcmp (s, a0 + i)); // { dg-warning "'strcmp' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strcmp (s, a1));
|
||||
T (strcmp (s, a1 + 1)); // { dg-warning "'strcmp' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcmp (s, a1 + i));
|
||||
T (strcmp (s, a1 + i + 1));
|
||||
}
|
||||
|
||||
/* The number of characters read is considered to be bounded not just
|
||||
by the third argument to strncmp but also by the length of the shorter
|
||||
of the two strings. When the string length is unknowm, verify that
|
||||
a warning is only issued for certain reading past the end but not
|
||||
otherwise. */
|
||||
|
||||
void test_strncmp_array (const char *s, int i)
|
||||
{
|
||||
T (strncmp (a0, a0, 0));
|
||||
|
||||
T (strncmp (a0, s, 0));
|
||||
T (strncmp (a0, s, 1)); // { dg-warning "'strncmp' reading 1 or more bytes from a region of size 0" "pr?????" { xfail *-*-* } }
|
||||
|
||||
T (strncmp (a0, s, 2)); // { dg-warning "'strncmp' (reading between 1 and 2 bytes from a region of size 0|specified bound 2 exceeds source size 0)" }
|
||||
T (strncmp (a1, s, 0));
|
||||
T (strncmp (a1, s, 1));
|
||||
T (strncmp (a1 + 1, s, 1)); // { dg-warning "'strncmp' reading 1 byte from a region of size 0" "pr?????" { xfail *-*-*} }
|
||||
T (strncmp (a1, s, 1));
|
||||
T (strncmp (a1 + 1, s, 2)); // { dg-warning "'strncmp' (reading between 1 and 2 bytes from a region of size 0|specified bound 2 exceeds source size 0)" }
|
||||
|
||||
T (strncmp (a2, s, 1));
|
||||
T (strncmp (a2, s, 2));
|
||||
T (strncmp (a2, s, 3));
|
||||
|
||||
T (strncmp (a2 + 1, s, 1));
|
||||
T (strncmp (a2 + 2, s, 2)); // { dg-warning "'strncmp' (reading between 1 and 2 bytes from a region of size 0|specified bound 2 exceeds source size 0)" }
|
||||
|
||||
T (strncmp (a1, b1, 0));
|
||||
T (strncmp (a1, b1, 1));
|
||||
T (strncmp (a1, b1, 2)); // { dg-warning "'strncmp' specified bound 2 exceeds source size 1" }
|
||||
}
|
||||
|
||||
|
||||
void test_strncmp_literal (const char *s, int i)
|
||||
{
|
||||
T (strncmp (a0, "", 0));
|
||||
T (strncmp (a0, "1", 0));
|
||||
T (strncmp (a0, "12", 0));
|
||||
|
||||
/* The calls with a bound in excess of the length of the literal are
|
||||
folded early (most into strcmp) so the warning doesn't trigger. */
|
||||
T (strncmp (s, "", 0));
|
||||
|
||||
T (strncmp (s, "1", 0));
|
||||
T (strncmp (s, "1", 1));
|
||||
T (strncmp (s, "1", 2)); // { dg-warning "\\\[-Wstringop-overread" "pr93665" { xfail *-*-* } }
|
||||
|
||||
T (strncmp (s, "12", 0));
|
||||
T (strncmp (s, "12", 1));
|
||||
T (strncmp (s, "12", 2));
|
||||
T (strncmp (s, "12", 3)); // { dg-warning "\\\[-Wstringop-overread" "pr93665" { xfail *-*-* } }
|
||||
|
||||
T (strncmp (s, "123", 0));
|
||||
T (strncmp (s, "123", 1));
|
||||
T (strncmp (s, "123", 2));
|
||||
T (strncmp (s, "123", 3));
|
||||
T (strncmp (s, "123", 4)); // { dg-warning "\\\[-Wstringop-overread" "pr93665" { xfail *-*-* } }
|
||||
}
|
||||
|
||||
|
||||
void test_strchr_array (int x, int i)
|
||||
{
|
||||
T (strchr (a0, x)); // { dg-warning "'strchr' reading 1 or more bytes from a region of size 0" }
|
||||
T (strchr (a0 + i, x)); // { dg-warning "'strchr' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strchr (a1, x));
|
||||
T (strchr (a1 + 1, x)); // { dg-warning "'strchr' reading 1 or more bytes from a region of size 0" }
|
||||
T (strchr (a1 + i, x));
|
||||
T (strchr (a1 + i + 1, x));
|
||||
}
|
||||
|
||||
|
||||
void test_strdup_array (int i)
|
||||
{
|
||||
T (strdup (a0)); // { dg-warning "'strdup' reading 1 or more bytes from a region of size 0" }
|
||||
T (strdup (a0 + i)); // { dg-warning "'strdup' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strdup (a1));
|
||||
T (strdup (a1 + 1)); // { dg-warning "'strdup' reading 1 or more bytes from a region of size 0" }
|
||||
T (strdup (a1 + i));
|
||||
T (strdup (a1 + i + 1));
|
||||
}
|
||||
|
||||
|
||||
void test_strndup_array (int i, int i0, unsigned n)
|
||||
{
|
||||
if (i0 < 0)
|
||||
i0 = 0;
|
||||
|
||||
T (strndup (a0, 0));
|
||||
T (strndup (a0, 1)); // { dg-warning "'strndup' (reading 1 byte from a region of size 0|specified bound 1 exceeds source size 0)" }
|
||||
T (strndup (a0, i0));
|
||||
T (strndup (a0, i0 + 1)); // { dg-warning "'strndup' (reading between 1 and \[0-9\]+ bytes from a region of size 0|specified bound \\\[1, \[0-9\]+\\\] exceeds source size 0)" }
|
||||
T (strndup (a0, n));
|
||||
T (strndup (a0 + i, 0));
|
||||
T (strndup (a0 + i, 1)); // { dg-warning "'strndup' (reading 1 byte from a region of size 0|specified bound 1 exceeds source size 0)" }
|
||||
T (strndup (a0 + i, i0));
|
||||
T (strndup (a0 + i, n));
|
||||
T (strndup (a0 + i + 1, 0));
|
||||
T (strndup (a0 + i + 1, 1)); // { dg-warning "'strndup' (reading 1 byte from a region of size 0|specified bound 1 exceeds source size 0)" }
|
||||
|
||||
T (strndup (a0 + i0, 0));
|
||||
T (strndup (a0 + i0, 1)); // { dg-warning "'strndup' (reading 1 byte from a region of size 0|specified bound 1 exceeds source size 0)" }
|
||||
T (strndup (a0 + i0, n));
|
||||
|
||||
T (strndup (a1, 0));
|
||||
T (strndup (a1, 1));
|
||||
T (strndup (a1, 2)); // { dg-warning "'strndup' specified bound 2 exceeds source size 1" }
|
||||
T (strndup (a1, n));
|
||||
T (strndup (a1 + 1, 0));
|
||||
T (strndup (a1 + 1, 1)); // { dg-warning "'strndup' reading 1 byte from a region of size 0" }
|
||||
T (strndup (a1 + 1, i0));
|
||||
T (strndup (a1 + 1, i0 + 1)); // { dg-warning "'strndup' reading between 1 and \[0-9\]+ bytes from a region of size 0" }
|
||||
T (strndup (a1 + 1, n));
|
||||
T (strndup (a1 + i, 0));
|
||||
T (strndup (a1 + i, 1));
|
||||
T (strndup (a1 + i, 2)); // { dg-warning "'strndup' specified bound 2 exceeds source size 1" }
|
||||
T (strndup (a1 + i, n));
|
||||
T (strndup (a1 + i + 1, 0));
|
||||
T (strndup (a1 + i + 1, 1));
|
||||
T (strndup (a1 + i + 1, 2)); // { dg-warning "'strndup' specified bound 2 exceeds source size 1" }
|
||||
T (strndup (a1 + i + 1, n));
|
||||
|
||||
T (strndup (a1 + i0, 0));
|
||||
T (strndup (a1 + i0, 1));
|
||||
T (strndup (a1 + i0, n));
|
||||
T (strndup (a1 + i0 + 1, 0));
|
||||
T (strndup (a1 + i0 + 1, 1)); // { dg-warning "'strndup' reading 1 byte from a region of size 0" }
|
||||
T (strndup (a1 + i0 + 1, n));
|
||||
|
||||
T (strndup (a2, 0));
|
||||
T (strndup (a2, 1));
|
||||
T (strndup (a2, 2));
|
||||
T (strndup (a2, n));
|
||||
T (strndup (a2 + 1, 0));
|
||||
T (strndup (a2 + 1, 1));
|
||||
T (strndup (a2 + 1, 2));
|
||||
T (strndup (a2 + 1, n));
|
||||
T (strndup (a2 + 2, 0));
|
||||
T (strndup (a2 + 2, 1)); // { dg-warning "'strndup' reading 1 byte from a region of size 0" }
|
||||
T (strndup (a2 + 2, n));
|
||||
T (strndup (a2 + i, 0));
|
||||
T (strndup (a2 + i, 1));
|
||||
T (strndup (a2 + i, 2));
|
||||
T (strndup (a2 + i + 2, 0));
|
||||
T (strndup (a2 + i + 2, 1));
|
||||
T (strndup (a2 + i + 2, 2));
|
||||
T (strndup (a2 + i + 2, n));
|
||||
|
||||
T (strndup (a2 + i0, 0));
|
||||
T (strndup (a2 + i0, 1));
|
||||
T (strndup (a2 + i0, 2));
|
||||
T (strndup (a2 + i0, 3)); // { dg-warning "'strndup' specified bound 3 exceeds source size 2" }
|
||||
T (strndup (a2 + i0, n));
|
||||
|
||||
T (strndup (a2 + i0 + 1, 0));
|
||||
T (strndup (a2 + i0 + 1, 1));
|
||||
T (strndup (a2 + i0 + 1, 2));
|
||||
T (strndup (a2 + i0 + 1, n));
|
||||
|
||||
T (strndup (a2 + i0 + 2, 0));
|
||||
T (strndup (a2 + i0 + 2, 1)); // { dg-warning "'strndup' reading 1 byte from a region of size 0" }
|
||||
T (strndup (a2 + i0 + 2, i0));
|
||||
T (strndup (a2 + i0 + 2, i0 + 1)); // { dg-warning "'strndup' reading between 1 and \[0-9\]+ bytes from a region of size 0" }
|
||||
T (strndup (a2 + i0 + 2, n));
|
||||
}
|
||||
|
||||
|
||||
void test_strpbrk_array (char *s, int i)
|
||||
{
|
||||
T (strpbrk (a0, "")); // { dg-warning "'strpbrk' reading 1 or more bytes from a region of size 0" "pr?????" { xfail *-*-* } }
|
||||
|
||||
T (strpbrk (a0, s)); // { dg-warning "'strpbrk' reading 1 or more bytes from a region of size 0" }
|
||||
T (strpbrk (a0 + i, s)); // { dg-warning "'strpbrk' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strpbrk (a1, s));
|
||||
T (strpbrk (a1 + 1, s)); // { dg-warning "'strpbrk' reading 1 or more bytes from a region of size 0" }
|
||||
T (strpbrk (a1 + i, s));
|
||||
T (strpbrk (a1 + i + 1, s));
|
||||
|
||||
|
||||
// Repeat the above with the arguments reversed.
|
||||
|
||||
T (strpbrk ("", a0)); // { dg-warning "'strpbrk' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strpbrk (s, a0)); // { dg-warning "'strpbrk' reading 1 or more bytes from a region of size 0" }
|
||||
T (strpbrk (s, a0 + i)); // { dg-warning "'strpbrk' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strpbrk (s, a1));
|
||||
T (strpbrk (s, a1 + 1)); // { dg-warning "'strpbrk' reading 1 or more bytes from a region of size 0" }
|
||||
T (strpbrk (s, a1 + i));
|
||||
T (strpbrk (s, a1 + i + 1));
|
||||
}
|
||||
|
||||
|
||||
void test_strspn_array (const char *s, int i)
|
||||
{
|
||||
T (strspn (a0, "")); // { dg-warning "'strspn' reading 1 or more bytes from a region of size 0" "pr?????" { xfail *-*-* } }
|
||||
|
||||
T (strspn (a0, s)); // { dg-warning "'strspn' reading 1 or more bytes from a region of size 0" }
|
||||
T (strspn (a0 + i, s)); // { dg-warning "'strspn' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strspn (a1, s));
|
||||
T (strspn (a1 + 1, s)); // { dg-warning "'strspn' reading 1 or more bytes from a region of size 0" }
|
||||
T (strspn (a1 + i, s));
|
||||
T (strspn (a1 + i + 1, s));
|
||||
|
||||
|
||||
// Repeat the above with the arguments reversed.
|
||||
|
||||
T (strspn ("", a0)); // { dg-warning "'strspn' reading 1 or more bytes from a region of size 0" "pr?????" { xfail *-*-*} }
|
||||
|
||||
T (strspn (s, a0)); // { dg-warning "'strspn' reading 1 or more bytes from a region of size 0" }
|
||||
T (strspn (s, a0 + i)); // { dg-warning "'strspn' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strspn (s, a1));
|
||||
T (strspn (s, a1 + 1)); // { dg-warning "'strspn' reading 1 or more bytes from a region of size 0" }
|
||||
T (strspn (s, a1 + i));
|
||||
T (strspn (s, a1 + i + 1));
|
||||
}
|
||||
|
||||
|
||||
void test_strcspn_array (const char *s, int i)
|
||||
{
|
||||
/* The call below is tranformed to strlen() so the warning references
|
||||
the latter function instead of strcspn. Avoid testing that aspect. */
|
||||
T (strcspn (a0, "")); // { dg-warning "reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strcspn (a0, s)); // { dg-warning "'strcspn' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcspn (a0 + i, s)); // { dg-warning "'strcspn' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strcspn (a1, s));
|
||||
T (strcspn (a1 + 1, s)); // { dg-warning "'strcspn' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcspn (a1 + i, s));
|
||||
T (strcspn (a1 + i + 1, s));
|
||||
|
||||
|
||||
// Repeat the above with the arguments reversed.
|
||||
|
||||
T (strcspn ("", a0)); // { dg-warning "'strcspn' reading 1 or more bytes from a region of size 0" "pr?????" { xfail *-*-*} }
|
||||
|
||||
T (strcspn (s, a0)); // { dg-warning "'strcspn' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcspn (s, a0 + i)); // { dg-warning "'strcspn' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strcspn (s, a1));
|
||||
T (strcspn (s, a1 + 1)); // { dg-warning "'strcspn' reading 1 or more bytes from a region of size 0" }
|
||||
T (strcspn (s, a1 + i));
|
||||
T (strcspn (s, a1 + i + 1));
|
||||
}
|
||||
|
||||
|
||||
void test_strstr_array (char *s, int i)
|
||||
{
|
||||
T (strstr (a0, "")); // { dg-warning "'strstr' reading 1 or more bytes from a region of size 0" "pr?????" { xfail *-*-* } }
|
||||
|
||||
T (strstr (a0, s)); // { dg-warning "'strstr' reading 1 or more bytes from a region of size 0" }
|
||||
T (strstr (a0 + i, s)); // { dg-warning "'strstr' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strstr (a1, s));
|
||||
T (strstr (a1 + 1, s)); // { dg-warning "'strstr' reading 1 or more bytes from a region of size 0" }
|
||||
T (strstr (a1 + i, s));
|
||||
T (strstr (a1 + i + 1, s));
|
||||
|
||||
|
||||
// Repeat the above with the arguments reversed.
|
||||
|
||||
T (strstr ("", a0)); // { dg-warning "'strstr' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strstr (s, a0)); // { dg-warning "'strstr' reading 1 or more bytes from a region of size 0" }
|
||||
T (strstr (s, a0 + i)); // { dg-warning "'strstr' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (strstr (s, a1));
|
||||
T (strstr (s, a1 + 1)); // { dg-warning "'strstr' reading 1 or more bytes from a region of size 0" }
|
||||
T (strstr (s, a1 + i));
|
||||
T (strstr (s, a1 + i + 1));
|
||||
}
|
||||
|
||||
|
||||
void test_puts_array (int i)
|
||||
{
|
||||
T (puts (a0)); // { dg-warning "'puts' reading 1 or more bytes from a region of size 0" }
|
||||
T (puts (a0 + i)); // { dg-warning "'puts' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (puts (a1));
|
||||
T (puts (a1 + 1)); // { dg-warning "'puts' reading 1 or more bytes from a region of size 0" }
|
||||
T (puts (a1 + i));
|
||||
T (puts (a1 + i + 1));
|
||||
}
|
||||
|
||||
|
||||
void test_puts_unlocked_array (int i)
|
||||
{
|
||||
T (puts_unlocked (a0)); // { dg-warning "'puts_unlocked' reading 1 or more bytes from a region of size 0" }
|
||||
T (puts_unlocked (a0 + i)); // { dg-warning "'puts_unlocked' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (puts_unlocked (a1));
|
||||
T (puts_unlocked (a1 + 1)); // { dg-warning "'puts_unlocked' reading 1 or more bytes from a region of size 0" }
|
||||
T (puts_unlocked (a1 + i));
|
||||
T (puts_unlocked (a1 + i + 1));
|
||||
}
|
||||
|
||||
|
||||
void test_gettext_array (int i)
|
||||
{
|
||||
T (gettext (a0)); // { dg-warning "'gettext' reading 1 or more bytes from a region of size 0" }
|
||||
T (gettext (a0 + i)); // { dg-warning "'gettext' reading 1 or more bytes from a region of size 0" }
|
||||
|
||||
T (gettext (a1));
|
||||
T (gettext (a1 + 1)); // { dg-warning "'gettext' reading 1 or more bytes from a region of size 0" }
|
||||
T (gettext (a1 + i));
|
||||
T (gettext (a1 + i + 1));
|
||||
}
|
||||
@ -26,8 +26,8 @@ void test_strnlen_array_cst (void)
|
||||
T (strnlen (ns3, 1));
|
||||
T (strnlen (ns3, 2));
|
||||
T (strnlen (ns3, 3));
|
||||
T (strnlen (ns3, 4)); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound 4" } */
|
||||
T (strnlen (ns3, DIFF_MAX)); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound \[0-9\]+" } */
|
||||
T (strnlen (ns3, 4)); /* { dg-warning "specified bound 4 exceeds source size 3" } */
|
||||
T (strnlen (ns3, DIFF_MAX)); /* { dg-warning "specified bound \[0-9\]+ exceeds source size" } */
|
||||
T (strnlen (ns3, SIZE_MAX)); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
NONSTRING char ns5[5];
|
||||
@ -37,8 +37,8 @@ void test_strnlen_array_cst (void)
|
||||
T (strnlen (ns5, 1));
|
||||
T (strnlen (ns5, 2));
|
||||
T (strnlen (ns5, 3));
|
||||
T (strnlen (ns5, 6)); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound 6" } */
|
||||
T (strnlen (ns5, DIFF_MAX)); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound \[0-9\]+" } */
|
||||
T (strnlen (ns5, 6)); /* { dg-warning "specified bound 6 exceeds source size 5" } */
|
||||
T (strnlen (ns5, DIFF_MAX)); /* { dg-warning "specified bound \[0-9\]+ exceeds source size 5" } */
|
||||
T (strnlen (ns5, SIZE_MAX)); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
}
|
||||
|
||||
@ -52,8 +52,8 @@ void test_strnlen_array_range (void)
|
||||
T (strnlen (ns3, UR (0, 9)));
|
||||
T (strnlen (ns3, UR (3, 4)));
|
||||
T (strnlen (ns3, UR (3, DIFF_MAX)));
|
||||
T (strnlen (ns3, UR (4, 5))); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound \\\[4, 5]" } */
|
||||
T (strnlen (ns3, UR (DIFF_MAX, SIZE_MAX))); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller " } */
|
||||
T (strnlen (ns3, UR (4, 5))); /* { dg-warning "specified bound \\\[4, 5] exceeds source size 3" } */
|
||||
T (strnlen (ns3, UR (DIFF_MAX, SIZE_MAX))); /* { dg-warning "specified bound \\\[\[0-9\]+, \[0-9\]+] exceeds source size 3 " } */
|
||||
}
|
||||
|
||||
|
||||
@ -73,8 +73,8 @@ void test_strnlen_string_cst (void)
|
||||
T (3, "12", 3, 1);
|
||||
T (3, "12", 3, 9);
|
||||
T (3, "123", 3, 1);
|
||||
T (3, "123", 3, 4); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound 4" } */
|
||||
T (3, "123", 3, 9); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound 9" } */
|
||||
T (3, "123", 3, 4); /* { dg-warning "specified bound 4 exceeds source size 3" } */
|
||||
T (3, "123", 3, 9); /* { dg-warning "specified bound 9 exceeds source size 3" } */
|
||||
|
||||
T (5, "1", 2, 1);
|
||||
T (5, "1", 2, 2);
|
||||
@ -84,7 +84,7 @@ void test_strnlen_string_cst (void)
|
||||
T (5, "12", 3, 9);
|
||||
T (5, "123", 3, 1);
|
||||
T (5, "123", 3, 5);
|
||||
T (5, "123", 3, 6); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound 6" } */
|
||||
T (5, "123", 3, 6); /* { dg-warning "specified bound 6 exceeds source size 5" } */
|
||||
|
||||
/* Strnlen shouldn't trigger a warning for arrays of unknown size
|
||||
(except for accesses to uninitialized elements when those are
|
||||
@ -110,6 +110,6 @@ void test_strnlen_string_range (void)
|
||||
{
|
||||
T (3, "1", 2, UR (0, 1));
|
||||
T (3, "1", 2, UR (3, 9));
|
||||
T (3, "123", 3, UR (4, 5)); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound \\\[4, 5]" } */
|
||||
T (3, "123", 3, UR (5, 9)); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound \\\[5, 9]" } */
|
||||
T (3, "123", 3, UR (4, 5)); /* { dg-warning "specified bound \\\[4, 5] exceeds source size 3" } */
|
||||
T (3, "123", 3, UR (5, 9)); /* { dg-warning "specified bound \\\[5, 9] exceeds source size 3" } */
|
||||
}
|
||||
|
||||
@ -37,15 +37,21 @@ void strncmp_cst (void)
|
||||
T (STR, /* [] */, STR, /* [] */, n);
|
||||
T (STR, /* [] */, STR, /* [] */, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (STR, 1, STR, /* [] */, 1);
|
||||
T (STR, 1, STR, /* [] */, n);
|
||||
T (STR, 2, STR, /* [] */, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (STR, /* [] */, STR, 3, 3);
|
||||
T (STR, /* [] */, STR, 3, n);
|
||||
T (STR, /* [] */, STR, 4, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (STR, /* [] */, NS, /* [] */, 3);
|
||||
T (STR, /* [] */, NS, /* [] */, n);
|
||||
T (STR, /* [] */, NS, /* [] */, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (STR, 5, NS, /* [] */, 4);
|
||||
T (STR, 5, NS, /* [] */, 5);
|
||||
T (STR, 5, NS, /* [] */, 6);
|
||||
T (STR, 5, NS, /* [] */, n);
|
||||
T (STR, 6, NS, /* [] */, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
@ -56,19 +62,22 @@ void strncmp_cst (void)
|
||||
T (NS, /* [] */, STR, /* [] */, n);
|
||||
T (NS, /* [] */, STR, /* [] */, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (NS, 9, STR, /* [] */, n); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound" } */
|
||||
T (NS, 9, STR, /* [] */, n); /* { dg-warning "argument 1 declared attribute 'nonstring' is smaller than the specified bound \[0-9\]+" } */
|
||||
T (NS, 10, STR, /* [] */, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (NS, /* [] */, STR, 11, 11);
|
||||
T (NS, /* [] */, STR, 11, n);
|
||||
T (NS, /* [] */, STR, 12, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (NS, /* [] */, NS, /* [] */, n);
|
||||
T (NS, /* [] */, NS, /* [] */, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (NS, 13, NS, /* [] */, n); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound" } */
|
||||
T (NS, 13, NS, /* [] */, 13);
|
||||
T (NS, 13, NS, /* [] */, n); /* { dg-warning "argument 1 declared attribute 'nonstring' is smaller than the specified bound \[0-9\]+" } */
|
||||
T (NS, 14, NS, /* [] */, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (NS, /* [] */, NS, 15, n); /* { dg-warning "argument 2 declared attribute .nonstring. is smaller than the specified bound" } */
|
||||
T (NS, /* [] */, NS, 15, 15);
|
||||
T (NS, /* [] */, NS, 15, 16); /* { dg-warning "argument 2 declared attribute 'nonstring' is smaller than the specified bound 16" } */
|
||||
T (NS, /* [] */, NS, 16, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
}
|
||||
|
||||
@ -81,6 +90,7 @@ void strncmp_range (void)
|
||||
T (STR, /* [] */, STR, /* [] */, n);
|
||||
T (STR, /* [] */, STR, /* [] */, n + 1); /* { dg-warning "specified bound \\\[\[0-9\]+, \[0-9\]+] exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (STR, 1, STR, /* [] */, 1);
|
||||
T (STR, 1, STR, /* [] */, n);
|
||||
T (STR, 2, STR, /* [] */, n + 1); /* { dg-warning "specified bound \\\[\[0-9\]+, \[0-9\]+] exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
@ -93,7 +103,7 @@ void strncmp_range (void)
|
||||
T (STR, 5, NS, /* [] */, n);
|
||||
T (STR, 6, NS, /* [] */, n + 1); /* { dg-warning "specified bound \\\[\[0-9\]+, \[0-9\]+] exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (STR, /* [] */, NS, 7, n); /* { dg-warning "argument 2 declared attribute .nonstring. is smaller than the specified bound" } */
|
||||
T (STR, /* [] */, NS, 7, n); /* { dg-warning "argument 2 declared attribute 'nonstring' is smaller than the specified bound \\\[\[0-9\]+, \[0-9\]+]" } */
|
||||
|
||||
T (STR, /* [] */, NS, 8, n + 1); /* { dg-warning "specified bound \\\[\[0-9\]+, \[0-9\]+] exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
|
||||
@ -40,7 +40,7 @@ void strnlen_cst (void)
|
||||
T (NS, /* [] */, n);
|
||||
T (NS, /* [] */, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (NS, 9, n); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound" } */
|
||||
T (NS, 9, n); /* { dg-warning "specified bound \[0-9\]+ exceeds source size 9" } */
|
||||
T (NS, 10, n + 1); /* { dg-warning "specified bound \[0-9\]+ exceeds maximum object size \[0-9\]+" } */
|
||||
}
|
||||
|
||||
@ -53,12 +53,12 @@ void strnlen_range (void)
|
||||
T (STR, /* [] */, n);
|
||||
T (STR, /* [] */, n + 1); /* { dg-warning "specified bound \\\[\[0-9\]+, \[0-9\]+] exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (STR, 1, n);
|
||||
T (STR, 1, n); /* { dg-warning "specified bound \\\[\[0-9\]+, \[0-9\]+] exceeds source size 1" } */
|
||||
T (STR, 2, n + 1); /* { dg-warning "specified bound \\\[\[0-9\]+, \[0-9\]+] exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (NS, /* [] */, n);
|
||||
T (NS, /* [] */, n + 1); /* { dg-warning "specified bound \\\[\[0-9\]+, \[0-9\]+] exceeds maximum object size \[0-9\]+" } */
|
||||
|
||||
T (NS, 9, n); /* { dg-warning "argument 1 declared attribute .nonstring. is smaller than the specified bound" } */
|
||||
T (NS, 9, n); /* { dg-warning "specified bound \\\[\[0-9\]+, \[0-9\]+] exceeds source size 9" } */
|
||||
T (NS, 10, n + 1); /* { dg-warning "specified bound \\\[\[0-9\]+, \[0-9\]+] exceeds maximum object size \[0-9\]+" } */
|
||||
}
|
||||
|
||||
@ -44,80 +44,80 @@ int strcmp_nonstring_1 (NONSTRING const char *a, const char *b)
|
||||
no good on its own. Use dg-regexp instead to verify that just
|
||||
one instance of the warning is issued. See gcc.dg/pr64223-1
|
||||
for a different approach. */
|
||||
return strcmp (a, b); /* { dg-regexp "\[^\n\r\]+: warning: .strcmp. argument 1 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "strcmp" } */
|
||||
return strcmp (a, b); /* { dg-regexp "\[^\n\r\]+: warning: .strcmp. argument 1 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "strcmp" } */
|
||||
}
|
||||
|
||||
int strcmp_nonstring_2 (const char *a, NONSTRING const char *b)
|
||||
{
|
||||
return strcmp (a, b); /* { dg-regexp "\[^\n\r\]+: warning: .strcmp. argument 2 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "strcmp" } */
|
||||
return strcmp (a, b); /* { dg-regexp "\[^\n\r\]+: warning: .strcmp. argument 2 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "strcmp" } */
|
||||
}
|
||||
|
||||
int strncmp_nonstring_1 (const char *s)
|
||||
{
|
||||
return strncmp (s, ns5, sizeof ns5 + 1); /* { dg-regexp "\[^\n\r\]+: warning: .strncmp. argument 2 declared attribute .nonstring. \[^\n\r\]+ \\\[-Wstringop-overflow=]" "strncmp" } */
|
||||
return strncmp (s, ns5, sizeof ns5 + 1); /* { dg-regexp "\[^\n\r\]+: warning: .strncmp. argument 2 declared attribute .nonstring. \[^\n\r\]+ \\\[-Wstringop-overread\[^\n\r\]*" "strncmp" } */
|
||||
}
|
||||
|
||||
int strncmp_nonstring_2 (const char *s)
|
||||
{
|
||||
return strncmp (ns5, s, sizeof ns5 + 1); /* { dg-regexp "\[^\n\r\]+: warning: .strncmp. argument 1 declared attribute .nonstring. \[^\n\r\]+ \\\[-Wstringop-overflow=]" "strncmp" } */
|
||||
return strncmp (ns5, s, sizeof ns5 + 1); /* { dg-regexp "\[^\n\r\]+: warning: .strncmp. argument 1 declared attribute .nonstring. \[^\n\r\]+ \\\[-Wstringop-overread\[^\n\r\]*" "strncmp" } */
|
||||
}
|
||||
|
||||
char* stpcpy_nonstring (char *d, NONSTRING const char *s)
|
||||
{
|
||||
return stpcpy (d, s); /* { dg-regexp "\[^\n\r\]+: warning: .stpcpy. argument 2 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "stpcpy" } */
|
||||
return stpcpy (d, s); /* { dg-regexp "\[^\n\r\]+: warning: .stpcpy. argument 2 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "stpcpy" } */
|
||||
}
|
||||
|
||||
char* stpncpy_nonstring (char *d)
|
||||
{
|
||||
return stpncpy (d, ns5, sizeof ns5 + 1); /* { dg-regexp "\[^\n\r\]+: warning: .stpncpy. argument 2 declared attribute .nonstring. \[^\n\r\]+ \\\[-Wstringop-overflow=]" "stpncpy" } */
|
||||
return stpncpy (d, ns5, sizeof ns5 + 1); /* { dg-regexp "\[^\n\r\]+: warning: .stpncpy. argument 2 declared attribute .nonstring. \[^\n\r\]+ \\\[-Wstringop-overread\[^\n\r\]*" "stpncpy" } */
|
||||
}
|
||||
|
||||
char* strchr_nonstring (NONSTRING const char *s, int c)
|
||||
{
|
||||
return strchr (s, c); /* { dg-regexp "\[^\n\r\]+: warning: .strchr. argument 1 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "strchr" } */
|
||||
return strchr (s, c); /* { dg-regexp "\[^\n\r\]+: warning: .strchr. argument 1 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "strchr" } */
|
||||
}
|
||||
|
||||
char* strrchr_nonstring (NONSTRING const char *s, int c)
|
||||
{
|
||||
return strrchr (s, c); /* { dg-regexp "\[^\n\r\]+: warning: .strrchr. argument 1 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "strrchr" } */
|
||||
return strrchr (s, c); /* { dg-regexp "\[^\n\r\]+: warning: .strrchr. argument 1 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "strrchr" } */
|
||||
}
|
||||
|
||||
char* strcpy_nonstring (char *d, NONSTRING const char *s)
|
||||
{
|
||||
return strcpy (d, s); /* { dg-regexp "\[^\n\r\]+: warning: .strcpy. argument 2 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "strcpy" } */
|
||||
return strcpy (d, s); /* { dg-regexp "\[^\n\r\]+: warning: .strcpy. argument 2 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "strcpy" } */
|
||||
}
|
||||
|
||||
char* strncpy_nonstring (char *d)
|
||||
{
|
||||
return strncpy (d, ns5, sizeof ns5 + 1); /* { dg-regexp "\[^\n\r\]+: warning: .strncpy. argument 2 declared attribute .nonstring. \[^\n\r\]+ \\\[-Wstringop-overflow=]" "strncpy" } */
|
||||
return strncpy (d, ns5, sizeof ns5 + 1); /* { dg-regexp "\[^\n\r\]+: warning: .strncpy. argument 2 declared attribute .nonstring. \[^\n\r\]+ \\\[-Wstringop-overread\[^\n\r\]*" "strncpy" } */
|
||||
}
|
||||
|
||||
char* strstr_nonstring_1 (NONSTRING const char *a, const char *b)
|
||||
{
|
||||
return strstr (a, b); /* { dg-regexp "\[^\n\r\]+: warning: .strstr. argument 1 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "strstr" } */
|
||||
return strstr (a, b); /* { dg-regexp "\[^\n\r\]+: warning: .strstr. argument 1 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "strstr" } */
|
||||
}
|
||||
|
||||
char* strstr_nonstring_2 (const char *a, NONSTRING const char *b)
|
||||
{
|
||||
return strstr (a, b); /* { dg-regexp "\[^\n\r\]+: warning: .strstr. argument 2 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "strstr" } */
|
||||
return strstr (a, b); /* { dg-regexp "\[^\n\r\]+: warning: .strstr. argument 2 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "strstr" } */
|
||||
}
|
||||
|
||||
char* stdup_nonstring (NONSTRING const char *s)
|
||||
{
|
||||
return strdup (s); /* { dg-regexp "\[^\n\r\]+: warning: .strdup. argument 1 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "strdup" } */
|
||||
return strdup (s); /* { dg-regexp "\[^\n\r\]+: warning: .strdup. argument 1 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "strdup" } */
|
||||
}
|
||||
|
||||
size_t strlen_nonstring (NONSTRING const char *s)
|
||||
{
|
||||
return strlen (s); /* { dg-regexp "\[^\n\r\]+: warning: .strlen. argument 1 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "strlen" } */
|
||||
return strlen (s); /* { dg-regexp "\[^\n\r\]+: warning: .strlen. argument 1 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "strlen" } */
|
||||
}
|
||||
|
||||
int printf_nonstring (NONSTRING const char *s)
|
||||
{
|
||||
return printf (s); /* { dg-regexp "\[^\n\r\]+: warning: .printf. argument 1 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "printf" } */
|
||||
return printf (s); /* { dg-regexp "\[^\n\r\]+: warning: .printf. argument 1 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "printf" } */
|
||||
}
|
||||
|
||||
int sprintf_nonstring_2 (char *d, NONSTRING const char *s)
|
||||
{
|
||||
return sprintf (d, s); /* { dg-regexp "\[^\n\r\]+: warning: .sprintf. argument 2 declared attribute .nonstring. \\\[-Wstringop-overflow=]" "sprintf" } */
|
||||
return sprintf (d, s); /* { dg-regexp "\[^\n\r\]+: warning: .sprintf. argument 2 declared attribute .nonstring. \\\[-Wstringop-overread\[^\n\r\]*" "sprintf" } */
|
||||
}
|
||||
|
||||
@ -87,7 +87,7 @@ void test_memop_warn_local (const void *src)
|
||||
memset (&b->d, 0, offsetfrom (struct B, b, d) + 1); /* { dg-warning "writing 6 bytes into a region of size 5" } */
|
||||
escape (b);
|
||||
|
||||
/* Same as above but clearing just elements of the second element
|
||||
/* Same as above but clearing just members of the second element
|
||||
of the array. */
|
||||
memset (&b[1].a.b, 0, offsetfrom (struct B, b[1], a.b) + 1); /* { dg-warning "writing 4 bytes into a region of size 3" } */
|
||||
escape (b);
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
/* Test exercising -Wstringop-overflow warnings for reading past the end. */
|
||||
/* Test exercising -Wstringop-overread warnings for reading past the end. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-O2 -Wstringop-overflow=1 -ftrack-macro-expansion=0" } */
|
||||
/* { dg-options "-O2 -Wstringop-overread -ftrack-macro-expansion=0" } */
|
||||
|
||||
#define PTRDIFF_MAX __PTRDIFF_MAX__
|
||||
#define SIZE_MAX __SIZE_MAX__
|
||||
@ -73,22 +73,22 @@ void test_memop_warn_local (void *p, const void *q)
|
||||
|
||||
/* Verify memchr/memcmp. */
|
||||
int i = R (0, 255);
|
||||
memchr ("", i, 2); /* { dg-warning "reading 2 bytes from a region of size 1" } */
|
||||
memchr ("", i, 2); /* { dg-warning "reading 2 bytes from a region of size 1" } */
|
||||
memchr ("123", i, 5); /* { dg-warning "reading 5 bytes from a region of size 4" } */
|
||||
memchr (a, i, sizeof a + 1); /* { dg-warning "reading 5 bytes from a region of size 4" } */
|
||||
memchr ("", i, 2); /* { dg-warning "specified bound 2 exceeds source size 1" "memchr" } */
|
||||
memchr ("", i, 2); /* { dg-warning "specified bound 2 exceeds source size 1" "memchr" } */
|
||||
memchr ("123", i, 5); /* { dg-warning "specified bound 5 exceeds source size 4" "memchr" } */
|
||||
memchr (a, i, sizeof a + 1); /* { dg-warning "specified bound 5 exceeds source size 4" "memchr" } */
|
||||
|
||||
memcmp (p, "", 2); /* { dg-warning "reading 2 bytes from a region of size 1" } */
|
||||
memcmp (p, "123", 5); /* { dg-warning "reading 5 bytes from a region of size 4" } */
|
||||
memcmp (p, a, sizeof a + 1); /* { dg-warning "reading 5 bytes from a region of size 4" } */
|
||||
memcmp (p, "", 2); /* { dg-warning "specified bound 2 exceeds source size 1" "memcmp" } */
|
||||
memcmp (p, "123", 5); /* { dg-warning "specified bound 5 exceeds source size 4" "memcmp" } */
|
||||
memcmp (p, a, sizeof a + 1); /* { dg-warning "specified bound 5 exceeds source size 4" "memcmp" } */
|
||||
|
||||
size_t n = PTRDIFF_MAX + (size_t)1;
|
||||
memchr (p, 1, n); /* { dg-warning "exceeds maximum object size" } */
|
||||
memcmp (p, q, n); /* { dg-warning "exceeds maximum object size" } */
|
||||
memchr (p, 1, n); /* { dg-warning "exceeds maximum object size" "memchr" } */
|
||||
memcmp (p, q, n); /* { dg-warning "exceeds maximum object size" "memcmp" } */
|
||||
|
||||
n = SIZE_MAX;
|
||||
memchr (p, 1, n); /* { dg-warning "exceeds maximum object size" } */
|
||||
memcmp (p, q, n); /* { dg-warning "exceeds maximum object size" } */
|
||||
memchr (p, 1, n); /* { dg-warning "exceeds maximum object size" "memchr" } */
|
||||
memcmp (p, q, n); /* { dg-warning "exceeds maximum object size" "memcmp" } */
|
||||
}
|
||||
|
||||
/* Verify that reading beyond the end of a dynamically allocated array
|
||||
@ -117,8 +117,8 @@ void test_memop_warn_alloc (void *p)
|
||||
/* Verify memchr/memcmp. */
|
||||
n = sizeof *b * 2 + 1;
|
||||
|
||||
memchr (b, 1, n); /* { dg-warning "reading 9 bytes from a region of size 8" "memcmp from allocated" } */
|
||||
memcmp (p, b, n); /* { dg-warning "reading 9 bytes from a region of size 8" "memcmp from allocated" } */
|
||||
memchr (b, 1, n); /* { dg-warning "specified bound 9 exceeds source size 8" "memchr from allocated" } */
|
||||
memcmp (p, b, n); /* { dg-warning "specified bound 9 exceeds source size 8" "memcmp from allocated" } */
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -12,4 +12,5 @@ void foo(void)
|
||||
__builtin_aligned_alloc (10, 16); /* { dg-warning "ignoring return value of '__builtin_aligned_alloc' declared with attribute 'warn_unused_result'" } */
|
||||
__builtin_strdup ("pes"); /* { dg-warning "ignoring return value of '__builtin_strdup' declared with attribute 'warn_unused_result'" } */
|
||||
__builtin_strndup ("pes", 10); /* { dg-warning "ignoring return value of '__builtin_strndup' declared with attribute 'warn_unused_result'" } */
|
||||
/* { dg-warning "\\\[-Wstringop-overread" "strndup excessive bound" { target *-*-* } .-1 } */
|
||||
}
|
||||
|
||||
@ -84,5 +84,5 @@ char* test_strncat (int i)
|
||||
{
|
||||
const char *s = i < 0 ? "123" : "4567";
|
||||
|
||||
return strncat (d, s, range ()); /* { dg-warning ".__builtin_strncat. specified bound between 4 and \[0-9\]+" } */
|
||||
return strncat (d, s, range ()); /* { dg-warning ".__builtin_strncat. specified bound \\\[4, \[0-9\]+] exceeds destination size 3" } */
|
||||
}
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
when the pointer pointed to by the enclosing object references an object
|
||||
sufficiently large to store a string of equal length.
|
||||
{ dg-do compile }
|
||||
{ dg-options "-O2 -Wall -Wextra -fdump-tree-optimized" } */
|
||||
{ dg-options "-O2 -Wall -Wextra -Wno-stringop-overread -fdump-tree-optimized" } */
|
||||
|
||||
void init (void*);
|
||||
|
||||
|
||||
@ -21,9 +21,9 @@ void test_var_flexarray_cst_off (void)
|
||||
{
|
||||
/* Use arbitrary constants greater than 16 in case GCC ever starts
|
||||
unrolling strlen() calls with small array arguments. */
|
||||
a[0] = 17 < strlen (a0.a + 1); // { dg-warning "\\\[-Warray-bounds" }
|
||||
a[1] = 19 < strlen (a1.a + 1);
|
||||
a[2] = 23 < strlen (a9.a + 9);
|
||||
a[0] = 17 < strlen (a0.a + 1); // { dg-warning "\\\[-Warray-bounds|-Wstringop-overread" }
|
||||
a[1] = 19 < strlen (a1.a + 1); // { dg-warning "\\\[-Wstringop-overread" }
|
||||
a[2] = 23 < strlen (a9.a + 9); // { dg-warning "\\\[-Wstringop-overread" }
|
||||
a[3] = 29 < strlen (ax.a + 3);
|
||||
}
|
||||
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
/* Test -Wsizeof-pointer-memaccess warnings. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-Wall -Wno-array-bounds -Wno-sizeof-array-argument -Wno-stringop-overflow -Wno-stringop-truncation" } */
|
||||
/* { dg-options "-Wall -Wno-array-bounds -Wno-sizeof-array-argument -Wno-stringop-overflow -Wno-stringop-overread -Wno-stringop-truncation" } */
|
||||
/* Test just twice, once with -O0 non-fortified, once with -O2 fortified. */
|
||||
/* { dg-skip-if "" { *-*-* } { "*" } { "-O0" "-O2" } } */
|
||||
/* { dg-skip-if "" { *-*-* } { "-flto" } { "" } } */
|
||||
|
||||
@ -14,13 +14,13 @@ main (void)
|
||||
/* MEMCHR. */
|
||||
if (__builtin_memchr ("", 'x', 1000)) /* Not folded away. */
|
||||
{
|
||||
/* { dg-warning "reading 1000 bytes from a region of size 1" "" { target *-*-* } .-2 } */
|
||||
/* { dg-warning "\\\[-Wstringop-overread" "" { target *-*-* } .-2 } */
|
||||
__builtin_abort ();
|
||||
}
|
||||
|
||||
if (__builtin_memchr (foo1, 'x', 1000)) /* Not folded away. */
|
||||
{
|
||||
/* { dg-warning "reading 1000 bytes from a region of size 1" "" { target *-*-* } .-2 } */
|
||||
/* { dg-warning "\\\[-Wstringop-overread" "" { target *-*-* } .-2 } */
|
||||
__builtin_abort ();
|
||||
}
|
||||
|
||||
|
||||
@ -27,7 +27,7 @@ void nowarn_scalar_plus_fpri (void)
|
||||
int i;
|
||||
/* This gets a -Wstringop-overflow for reading past the end but not
|
||||
-Wuninitialized because there's nothing to initialize there. */
|
||||
fpri (&i + 1); // { dg-warning "\\\[-Wstringop-overflow" }
|
||||
fpri (&i + 1); // { dg-warning "\\\[-Wstringop-overread" }
|
||||
}
|
||||
|
||||
void nowarn_array_assign_fpcri (void)
|
||||
|
||||
@ -62,5 +62,11 @@ void test (int n0)
|
||||
|
||||
int n = n0 < n1 ? n1 : n0;
|
||||
|
||||
sink (strnlen (c + n, n + 1)); /* { dg-warning "specified bound \\\[5, \[0-9\]+] may exceed the size of at most 4 of unterminated array" } */
|
||||
/* N is at least 4 and c[4] is out-of-bounds. This could trigger
|
||||
either -Warray-bounds or -Wstringop-overread. -Warray-bounds
|
||||
only diagnoses past-the-end accesses by modifying functions
|
||||
(in gimple-ssa-warn-restrict.c) and even for those, either
|
||||
-Wstringop-overflow or -Wstringop-overread would be more
|
||||
appropriate. */
|
||||
sink (strnlen (c + n, n + 1)); /* { dg-warning "specified bound \\\[5, \[0-9\]+] exceeds the size of at most 4 of unterminated array" } */
|
||||
}
|
||||
|
||||
@ -35,7 +35,7 @@ T (&a[1], asz - 1);
|
||||
T (&a[v0], asz); /* { dg-warning "specified bound 5 may exceed the size of at most 5 of unterminated array" } */
|
||||
T (&a[v0] + 1, asz); /* { dg-warning "specified bound 5 may exceed the size of at most 5 of unterminated array" } */
|
||||
|
||||
T (a, asz + 1); /* { dg-warning "specified bound 6 exceeds the size 5 " } */
|
||||
T (a, asz + 1); /* { dg-warning "specified bound 6 exceeds the size 5 of unterminated array" } */
|
||||
T (&a[0], asz + 1); /* { dg-warning "unterminated" } */
|
||||
T (&a[0] + 1, asz - 1);
|
||||
T (&a[0] + 1, asz + 1); /* { dg-warning "unterminated" } */
|
||||
@ -110,7 +110,7 @@ T (&b[3][1] + i1, bsz); /* { dg-warning "unterminated" } */
|
||||
T (&b[3][1] + i1, bsz - i1); /* { dg-warning "unterminated" } */
|
||||
T (&b[3][1] + i1, bsz - i2);
|
||||
T (&b[3][v0], bsz);
|
||||
T (&b[3][1] + v0, bsz); /* { dg-warning "specified bound 5 may exceed the size of at most 4 of unterminated array" } */
|
||||
T (&b[3][1] + v0, bsz); /* { dg-warning "specified bound 5 exceeds the size of at most 4 of unterminated array" } */
|
||||
T (&b[3][v0] + v1, bsz); /* { dg-warning "specified bound 5 may exceed the size of at most 4 of unterminated array" "pr?????" { xfail *-*-* } } */
|
||||
|
||||
T (&b[3][1], bsz + 1); /* { dg-warning "unterminated" } */
|
||||
@ -124,7 +124,7 @@ T (&b[i3][i1], bsz); /* { dg-warning "unterminated" } */
|
||||
T (&b[i3][i1] + 1, bsz); /* { dg-warning "unterminated" } */
|
||||
T (&b[i3][i1] + i1, bsz); /* { dg-warning "specified bound 5 exceeds the size 3 of unterminated array" } */
|
||||
T (&b[i3][v0], bsz);
|
||||
T (&b[i3][i1] + v0, bsz); /* { dg-warning "specified bound 5 may exceed the size of at most 4 of unterminated array" } */
|
||||
T (&b[i3][i1] + v0, bsz); /* { dg-warning "specified bound 5 exceeds the size of at most 4 of unterminated array" } */
|
||||
T (&b[i3][v0] + v1, bsz);
|
||||
|
||||
T (&b[i3][i1], bsz + 1); /* { dg-warning "unterminated" } */
|
||||
@ -212,10 +212,10 @@ T (&s.a[i1] + v0, asz);
|
||||
T (s.a, asz + 1);
|
||||
T (&s.a[0], asz + 1);
|
||||
T (&s.a[0] + 1, asz + 1);
|
||||
T (&s.a[0] + v0, asz + 1);
|
||||
T (&s.a[0] + v0, asz + 1); /* { dg-warning "specified bound 6 exceeds source size 5 " } */
|
||||
T (&s.a[1], asz + 1);
|
||||
T (&s.a[1] + 1, asz + 1);
|
||||
T (&s.a[1] + v0, asz + 1);
|
||||
T (&s.a[1] + v0, asz + 1); /* { dg-bogus "specified bound 6 exceeds source size 5" "pr95794" { xfail *-*-* } } */
|
||||
|
||||
T (&s.a[i0], asz + 1);
|
||||
T (&s.a[i0] + i1, asz + 1);
|
||||
@ -266,10 +266,10 @@ const struct B ba[] = {
|
||||
T (ba[0].a[0].a, asz + 1);
|
||||
T (&ba[0].a[0].a[0], asz + 1);
|
||||
T (&ba[0].a[0].a[0] + 1, asz + 1);
|
||||
T (&ba[0].a[0].a[0] + v0, asz + 1);
|
||||
T (&ba[0].a[0].a[0] + v0, asz + 1); /* { dg-bogus "specified bound 6 exceeds source size 5" pr95794" { xfail *-*-* } } */
|
||||
T (&ba[0].a[0].a[1], asz + 1);
|
||||
T (&ba[0].a[0].a[1] + 1, asz + 1);
|
||||
T (&ba[0].a[0].a[1] + v0, asz + 1);
|
||||
T (&ba[0].a[0].a[1] + v0, asz + 1); /* { dg-bogus "specified bound 6 exceeds source size 5" pr95794" { xfail *-*-* } } */
|
||||
|
||||
T (ba[0].a[0].b, bsz);
|
||||
T (&ba[0].a[0].b[0], bsz);
|
||||
@ -302,10 +302,10 @@ T (&ba[0].a[1].a[1] + v0, asz + 1); /* { dg-warning "unterminated" } */
|
||||
T (ba[0].a[1].b, bsz + 1);
|
||||
T (&ba[0].a[1].b[0], bsz + 1);
|
||||
T (&ba[0].a[1].b[0] + 1, bsz + 1);
|
||||
T (&ba[0].a[1].b[0] + v0, bsz + 1);
|
||||
T (&ba[0].a[1].b[0] + v0, bsz + 1); /* { dg-bogus "specified bound 6 exceeds source size 5" pr95794" { xfail *-*-* } } */
|
||||
T (&ba[0].a[1].b[1], bsz + 1);
|
||||
T (&ba[0].a[1].b[1] + 1, bsz + 1);
|
||||
T (&ba[0].a[1].b[1] + v0, bsz + 1);
|
||||
T (&ba[0].a[1].b[1] + v0, bsz + 1); /* { dg-bogus "specified bound 6 exceeds source size 5" pr95794" { xfail *-*-* } } */
|
||||
|
||||
T (ba[1].a[0].a, asz);
|
||||
T (&ba[1].a[0].a[0], asz);
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
/* When the specified length exceeds one of the arguments of the call to memcmp,
|
||||
the call to memcmp should NOT be inlined. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-O2 -Wno-stringop-overflow" } */
|
||||
/* { dg-options "-O2 -Wno-stringop-overread" } */
|
||||
|
||||
typedef struct { char s[8]; int x; } S;
|
||||
|
||||
|
||||
@ -489,10 +489,10 @@ maybe_warn_pass_by_reference (gimple *stmt, wlimits &wlims)
|
||||
attr_access *access = rdwr_idx.get (argno - 1);
|
||||
if (access)
|
||||
{
|
||||
if (access->mode == attr_access::none
|
||||
|| access->mode == attr_access::write_only)
|
||||
if (access->mode == access_none
|
||||
|| access->mode == access_write_only)
|
||||
continue;
|
||||
if (save_always_executed && access->mode == attr_access::read_only)
|
||||
if (save_always_executed && access->mode == access_read_only)
|
||||
/* Attribute read_only arguments imply read access. */
|
||||
wlims.always_executed = true;
|
||||
else
|
||||
@ -524,7 +524,7 @@ maybe_warn_pass_by_reference (gimple *stmt, wlimits &wlims)
|
||||
|
||||
if (access)
|
||||
{
|
||||
const char* const mode = (access->mode == attr_access::read_only
|
||||
const char* const mode = (access->mode == access_read_only
|
||||
? "read_only" : "read_write");
|
||||
char attrstr[80];
|
||||
int n = sprintf (attrstr, "access (%s, %u", mode, argno);
|
||||
|
||||
@ -5340,6 +5340,15 @@ canonical_type_used_p (const_tree t)
|
||||
|| TREE_CODE (t) == VECTOR_TYPE);
|
||||
}
|
||||
|
||||
/* Kinds of access to pass-by-reference arguments to functions. */
|
||||
enum access_mode
|
||||
{
|
||||
access_none = 0,
|
||||
access_read_only = 1,
|
||||
access_write_only = 2,
|
||||
access_read_write = access_read_only | access_write_only
|
||||
};
|
||||
|
||||
#define tree_map_eq tree_map_base_eq
|
||||
extern unsigned int tree_map_hash (const void *);
|
||||
#define tree_map_marked_p tree_map_base_marked_p
|
||||
|
||||
Loading…
Reference in New Issue
Block a user