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McKenney" , Mark Rutland , Josh Poimboeuf , Frederic Weisbecker , "Eric W. Biederman" , Dan Li , Marco Elver , Christophe Leroy , Song Liu , Andrew Morton , Uros Bizjak , Kumar Kartikeya Dwivedi , Juergen Gross , Luis Chamberlain , Borislav Petkov , Masami Hiramatsu , Dmitry Torokhov , Aaron Tomlin , Kalesh Singh , Yuntao Wang , Changbin Du Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev, linux-hardening@vger.kernel.org Subject: [RFC/RFT,V2 1/3] [PR102768] flag-types.h (enum sanitize_code): Extend sanitize_code to 64 bits to support more features Date: Sat, 25 Mar 2023 01:11:15 -0700 Message-Id: <20230325081117.93245-2-ashimida.1990@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230325081117.93245-1-ashimida.1990@gmail.com> References: <20221219055431.22596-1-ashimida.1990@gmail.com> <20230325081117.93245-1-ashimida.1990@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230325_011205_853537_9EFBB374 X-CRM114-Status: GOOD ( 23.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 32-bit sanitize_code can no longer accommodate new options, extending it to 64-bit. Signed-off-by: Dan Li gcc/ChangeLog: PR c/102768 * asan.h (sanitize_flags_p): Promote to uint64_t. * common.opt: Likewise. * dwarf2asm.cc (dw2_output_indirect_constant_1): Likewise. * flag-types.h (enum sanitize_code): Likewise. * opt-suggestions.cc (option_proposer::build_option_suggestions): Likewise. * opts.cc (find_sanitizer_argument): Likewise. (report_conflicting_sanitizer_options): Likewise. (get_closest_sanitizer_option): Likewise. (parse_sanitizer_options): Likewise. (parse_no_sanitize_attribute): Likewise. * opts.h (parse_sanitizer_options): Likewise. (parse_no_sanitize_attribute): Likewise. * tree-cfg.cc (print_no_sanitize_attr_value): Likewise. gcc/c-family/ChangeLog: * c-attribs.cc (add_no_sanitize_value): Likewise. (handle_no_sanitize_attribute): Likewise. * c-common.h (add_no_sanitize_value): Likewise. gcc/c/ChangeLog: * c-parser.cc (c_parser_declaration_or_fndef): Likewise. gcc/cp/ChangeLog: * typeck.cc (get_member_function_from_ptrfunc): Likewise. --- gcc/asan.h | 4 +-- gcc/c-family/c-attribs.cc | 10 +++--- gcc/c-family/c-common.h | 2 +- gcc/c/c-parser.cc | 4 +-- gcc/common.opt | 4 +-- gcc/cp/typeck.cc | 2 +- gcc/dwarf2asm.cc | 2 +- gcc/flag-types.h | 65 ++++++++++++++++++++------------------- gcc/opt-suggestions.cc | 2 +- gcc/opts.cc | 22 ++++++------- gcc/opts.h | 8 ++--- gcc/tree-cfg.cc | 2 +- 12 files changed, 64 insertions(+), 63 deletions(-) diff --git a/gcc/asan.h b/gcc/asan.h index d4ea49cb240..5b98172549b 100644 --- a/gcc/asan.h +++ b/gcc/asan.h @@ -233,9 +233,9 @@ asan_protect_stack_decl (tree decl) remove all flags mentioned in "no_sanitize" of DECL_ATTRIBUTES. */ static inline bool -sanitize_flags_p (unsigned int flag, const_tree fn = current_function_decl) +sanitize_flags_p (uint64_t flag, const_tree fn = current_function_decl) { - unsigned int result_flags = flag_sanitize & flag; + uint64_t result_flags = flag_sanitize & flag; if (result_flags == 0) return false; diff --git a/gcc/c-family/c-attribs.cc b/gcc/c-family/c-attribs.cc index 111a33f405a..a73e2364525 100644 --- a/gcc/c-family/c-attribs.cc +++ b/gcc/c-family/c-attribs.cc @@ -1118,23 +1118,23 @@ handle_cold_attribute (tree *node, tree name, tree ARG_UNUSED (args), /* Add FLAGS for a function NODE to no_sanitize_flags in DECL_ATTRIBUTES. */ void -add_no_sanitize_value (tree node, unsigned int flags) +add_no_sanitize_value (tree node, uint64_t flags) { tree attr = lookup_attribute ("no_sanitize", DECL_ATTRIBUTES (node)); if (attr) { - unsigned int old_value = tree_to_uhwi (TREE_VALUE (attr)); + uint64_t old_value = tree_to_uhwi (TREE_VALUE (attr)); flags |= old_value; if (flags == old_value) return; - TREE_VALUE (attr) = build_int_cst (unsigned_type_node, flags); + TREE_VALUE (attr) = build_int_cst (long_long_unsigned_type_node, flags); } else DECL_ATTRIBUTES (node) = tree_cons (get_identifier ("no_sanitize"), - build_int_cst (unsigned_type_node, flags), + build_int_cst (long_long_unsigned_type_node, flags), DECL_ATTRIBUTES (node)); } @@ -1145,7 +1145,7 @@ static tree handle_no_sanitize_attribute (tree *node, tree name, tree args, int, bool *no_add_attrs) { - unsigned int flags = 0; + uint64_t flags = 0; *no_add_attrs = true; if (TREE_CODE (*node) != FUNCTION_DECL) { diff --git a/gcc/c-family/c-common.h b/gcc/c-family/c-common.h index 52a85bfb783..eb91b9703db 100644 --- a/gcc/c-family/c-common.h +++ b/gcc/c-family/c-common.h @@ -1500,7 +1500,7 @@ extern enum flt_eval_method excess_precision_mode_join (enum flt_eval_method, enum flt_eval_method); extern int c_flt_eval_method (bool ts18661_p); -extern void add_no_sanitize_value (tree node, unsigned int flags); +extern void add_no_sanitize_value (tree node, uint64_t flags); extern void maybe_add_include_fixit (rich_location *, const char *, bool); extern void maybe_suggest_missing_token_insertion (rich_location *richloc, diff --git a/gcc/c/c-parser.cc b/gcc/c/c-parser.cc index f679d53706a..9d55ea55fa6 100644 --- a/gcc/c/c-parser.cc +++ b/gcc/c/c-parser.cc @@ -2217,7 +2217,7 @@ c_parser_declaration_or_fndef (c_parser *parser, bool fndef_ok, start_init (NULL_TREE, asm_name, global_bindings_p (), &richloc); /* A parameter is initialized, which is invalid. Don't attempt to instrument the initializer. */ - int flag_sanitize_save = flag_sanitize; + uint64_t flag_sanitize_save = flag_sanitize; if (nested && !empty_ok) flag_sanitize = 0; init = c_parser_expr_no_commas (parser, NULL); @@ -2275,7 +2275,7 @@ c_parser_declaration_or_fndef (c_parser *parser, bool fndef_ok, start_init (d, asm_name, global_bindings_p (), &richloc); /* A parameter is initialized, which is invalid. Don't attempt to instrument the initializer. */ - int flag_sanitize_save = flag_sanitize; + uint64_t flag_sanitize_save = flag_sanitize; if (TREE_CODE (d) == PARM_DECL) flag_sanitize = 0; init = c_parser_initializer (parser); diff --git a/gcc/common.opt b/gcc/common.opt index 8a0dafc522d..9613c2f8ba0 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -217,11 +217,11 @@ bool flag_opts_finished ; What the sanitizer should instrument Variable -unsigned int flag_sanitize +uint64_t flag_sanitize ; What sanitizers should recover from errors Variable -unsigned int flag_sanitize_recover = (SANITIZE_UNDEFINED | SANITIZE_UNDEFINED_NONDEFAULT | SANITIZE_KERNEL_ADDRESS | SANITIZE_KERNEL_HWADDRESS) & ~(SANITIZE_UNREACHABLE | SANITIZE_RETURN) +uint64_t flag_sanitize_recover = (SANITIZE_UNDEFINED | SANITIZE_UNDEFINED_NONDEFAULT | SANITIZE_KERNEL_ADDRESS | SANITIZE_KERNEL_HWADDRESS) & ~(SANITIZE_UNREACHABLE | SANITIZE_RETURN) ; Flag whether a prefix has been added to dump_base_name Variable diff --git a/gcc/cp/typeck.cc b/gcc/cp/typeck.cc index ceb80d9744f..0afaf58d87d 100644 --- a/gcc/cp/typeck.cc +++ b/gcc/cp/typeck.cc @@ -4023,7 +4023,7 @@ get_member_function_from_ptrfunc (tree *instance_ptrptr, tree function, idx = build1 (NOP_EXPR, vtable_index_type, e3); switch (TARGET_PTRMEMFUNC_VBIT_LOCATION) { - int flag_sanitize_save; + uint64_t flag_sanitize_save; case ptrmemfunc_vbit_in_pfn: e1 = cp_build_binary_op (input_location, BIT_AND_EXPR, idx, integer_one_node, diff --git a/gcc/dwarf2asm.cc b/gcc/dwarf2asm.cc index 274f574f25e..b54d1935d57 100644 --- a/gcc/dwarf2asm.cc +++ b/gcc/dwarf2asm.cc @@ -1026,7 +1026,7 @@ dw2_output_indirect_constant_1 (const char *sym, tree id) sym_ref = gen_rtx_SYMBOL_REF (Pmode, sym); /* Disable ASan for decl because redzones cause ABI breakage between GCC and libstdc++ for `.LDFCM*' variables. See PR 78651 for details. */ - unsigned int save_flag_sanitize = flag_sanitize; + uint64_t save_flag_sanitize = flag_sanitize; flag_sanitize &= ~(SANITIZE_ADDRESS | SANITIZE_USER_ADDRESS | SANITIZE_KERNEL_ADDRESS); /* And also temporarily disable -fsection-anchors. These indirect constants diff --git a/gcc/flag-types.h b/gcc/flag-types.h index 2c8498169e0..0aa51e282fb 100644 --- a/gcc/flag-types.h +++ b/gcc/flag-types.h @@ -287,42 +287,43 @@ enum auto_init_type { /* Different instrumentation modes. */ enum sanitize_code { /* AddressSanitizer. */ - SANITIZE_ADDRESS = 1UL << 0, - SANITIZE_USER_ADDRESS = 1UL << 1, - SANITIZE_KERNEL_ADDRESS = 1UL << 2, + SANITIZE_ADDRESS = 1ULL << 0, + SANITIZE_USER_ADDRESS = 1ULL << 1, + SANITIZE_KERNEL_ADDRESS = 1ULL << 2, /* ThreadSanitizer. */ - SANITIZE_THREAD = 1UL << 3, + SANITIZE_THREAD = 1ULL << 3, /* LeakSanitizer. */ - SANITIZE_LEAK = 1UL << 4, + SANITIZE_LEAK = 1ULL << 4, /* UndefinedBehaviorSanitizer. */ - SANITIZE_SHIFT_BASE = 1UL << 5, - SANITIZE_SHIFT_EXPONENT = 1UL << 6, - SANITIZE_DIVIDE = 1UL << 7, - SANITIZE_UNREACHABLE = 1UL << 8, - SANITIZE_VLA = 1UL << 9, - SANITIZE_NULL = 1UL << 10, - SANITIZE_RETURN = 1UL << 11, - SANITIZE_SI_OVERFLOW = 1UL << 12, - SANITIZE_BOOL = 1UL << 13, - SANITIZE_ENUM = 1UL << 14, - SANITIZE_FLOAT_DIVIDE = 1UL << 15, - SANITIZE_FLOAT_CAST = 1UL << 16, - SANITIZE_BOUNDS = 1UL << 17, - SANITIZE_ALIGNMENT = 1UL << 18, - SANITIZE_NONNULL_ATTRIBUTE = 1UL << 19, - SANITIZE_RETURNS_NONNULL_ATTRIBUTE = 1UL << 20, - SANITIZE_OBJECT_SIZE = 1UL << 21, - SANITIZE_VPTR = 1UL << 22, - SANITIZE_BOUNDS_STRICT = 1UL << 23, - SANITIZE_POINTER_OVERFLOW = 1UL << 24, - SANITIZE_BUILTIN = 1UL << 25, - SANITIZE_POINTER_COMPARE = 1UL << 26, - SANITIZE_POINTER_SUBTRACT = 1UL << 27, - SANITIZE_HWADDRESS = 1UL << 28, - SANITIZE_USER_HWADDRESS = 1UL << 29, - SANITIZE_KERNEL_HWADDRESS = 1UL << 30, + SANITIZE_SHIFT_BASE = 1ULL << 5, + SANITIZE_SHIFT_EXPONENT = 1ULL << 6, + SANITIZE_DIVIDE = 1ULL << 7, + SANITIZE_UNREACHABLE = 1ULL << 8, + SANITIZE_VLA = 1ULL << 9, + SANITIZE_NULL = 1ULL << 10, + SANITIZE_RETURN = 1ULL << 11, + SANITIZE_SI_OVERFLOW = 1ULL << 12, + SANITIZE_BOOL = 1ULL << 13, + SANITIZE_ENUM = 1ULL << 14, + SANITIZE_FLOAT_DIVIDE = 1ULL << 15, + SANITIZE_FLOAT_CAST = 1ULL << 16, + SANITIZE_BOUNDS = 1ULL << 17, + SANITIZE_ALIGNMENT = 1ULL << 18, + SANITIZE_NONNULL_ATTRIBUTE = 1ULL << 19, + SANITIZE_RETURNS_NONNULL_ATTRIBUTE = 1ULL << 20, + SANITIZE_OBJECT_SIZE = 1ULL << 21, + SANITIZE_VPTR = 1ULL << 22, + SANITIZE_BOUNDS_STRICT = 1ULL << 23, + SANITIZE_POINTER_OVERFLOW = 1ULL << 24, + SANITIZE_BUILTIN = 1ULL << 25, + SANITIZE_POINTER_COMPARE = 1ULL << 26, + SANITIZE_POINTER_SUBTRACT = 1ULL << 27, + SANITIZE_HWADDRESS = 1ULL << 28, + SANITIZE_USER_HWADDRESS = 1ULL << 29, + SANITIZE_KERNEL_HWADDRESS = 1ULL << 30, /* Shadow Call Stack. */ - SANITIZE_SHADOW_CALL_STACK = 1UL << 31, + SANITIZE_SHADOW_CALL_STACK = 1ULL << 31, + SANITIZE_MAX = 1ULL << 63, SANITIZE_SHIFT = SANITIZE_SHIFT_BASE | SANITIZE_SHIFT_EXPONENT, SANITIZE_UNDEFINED = SANITIZE_SHIFT | SANITIZE_DIVIDE | SANITIZE_UNREACHABLE | SANITIZE_VLA | SANITIZE_NULL | SANITIZE_RETURN diff --git a/gcc/opt-suggestions.cc b/gcc/opt-suggestions.cc index 33f298560a1..c667e23e66f 100644 --- a/gcc/opt-suggestions.cc +++ b/gcc/opt-suggestions.cc @@ -173,7 +173,7 @@ option_proposer::build_option_suggestions (const char *prefix) /* -fsanitize=all is not valid, only -fno-sanitize=all. So don't register the positive misspelling candidates for it. */ - if (sanitizer_opts[j].flag == ~0U && i == OPT_fsanitize_) + if (sanitizer_opts[j].flag == ~0ULL && i == OPT_fsanitize_) { optb = *option; optb.opt_text = opt_text = "-fno-sanitize="; diff --git a/gcc/opts.cc b/gcc/opts.cc index 3a89da2dd03..11c5d70458f 100644 --- a/gcc/opts.cc +++ b/gcc/opts.cc @@ -966,7 +966,7 @@ vec help_option_arguments; /* Return the string name describing a sanitizer argument which has been provided on the command line and has set this particular flag. */ const char * -find_sanitizer_argument (struct gcc_options *opts, unsigned int flags) +find_sanitizer_argument (struct gcc_options *opts, uint64_t flags) { for (int i = 0; sanitizer_opts[i].name != NULL; ++i) { @@ -1000,10 +1000,10 @@ find_sanitizer_argument (struct gcc_options *opts, unsigned int flags) set these flags. */ static void report_conflicting_sanitizer_options (struct gcc_options *opts, location_t loc, - unsigned int left, unsigned int right) + uint64_t left, uint64_t right) { - unsigned int left_seen = (opts->x_flag_sanitize & left); - unsigned int right_seen = (opts->x_flag_sanitize & right); + uint64_t left_seen = (opts->x_flag_sanitize & left); + uint64_t right_seen = (opts->x_flag_sanitize & right); if (left_seen && right_seen) { const char* left_arg = find_sanitizer_argument (opts, left_seen); @@ -2059,7 +2059,7 @@ const struct sanitizer_opts_s sanitizer_opts[] = SANITIZER_OPT (pointer-overflow, SANITIZE_POINTER_OVERFLOW, true), SANITIZER_OPT (builtin, SANITIZE_BUILTIN, true), SANITIZER_OPT (shadow-call-stack, SANITIZE_SHADOW_CALL_STACK, false), - SANITIZER_OPT (all, ~0U, true), + SANITIZER_OPT (all, ~0ULL, true), #undef SANITIZER_OPT { NULL, 0U, 0UL, false } }; @@ -2128,7 +2128,7 @@ get_closest_sanitizer_option (const string_fragment &arg, { /* -fsanitize=all is not valid, so don't offer it. */ if (code == OPT_fsanitize_ - && opts[i].flag == ~0U + && opts[i].flag == ~0ULL && value) continue; @@ -2148,9 +2148,9 @@ get_closest_sanitizer_option (const string_fragment &arg, adjust previous FLAGS and return new ones. If COMPLAIN is false, don't issue diagnostics. */ -unsigned int +uint64_t parse_sanitizer_options (const char *p, location_t loc, int scode, - unsigned int flags, int value, bool complain) + uint64_t flags, int value, bool complain) { enum opt_code code = (enum opt_code) scode; @@ -2176,7 +2176,7 @@ parse_sanitizer_options (const char *p, location_t loc, int scode, && memcmp (p, sanitizer_opts[i].name, len) == 0) { /* Handle both -fsanitize and -fno-sanitize cases. */ - if (value && sanitizer_opts[i].flag == ~0U) + if (value && sanitizer_opts[i].flag == ~0ULL) { if (code == OPT_fsanitize_) { @@ -2241,10 +2241,10 @@ parse_sanitizer_options (const char *p, location_t loc, int scode, /* Parse string values of no_sanitize attribute passed in VALUE. Values are separated with comma. */ -unsigned int +uint64_t parse_no_sanitize_attribute (char *value) { - unsigned int flags = 0; + uint64_t flags = 0; unsigned int i; char *q = strtok (value, ","); diff --git a/gcc/opts.h b/gcc/opts.h index a43ce66cffe..17a02cc7c14 100644 --- a/gcc/opts.h +++ b/gcc/opts.h @@ -425,10 +425,10 @@ extern void control_warning_option (unsigned int opt_index, int kind, extern char *write_langs (unsigned int mask); extern void print_ignored_options (void); extern void handle_common_deferred_options (void); -unsigned int parse_sanitizer_options (const char *, location_t, int, - unsigned int, int, bool); +uint64_t parse_sanitizer_options (const char *, location_t, int, + uint64_t, int, bool); -unsigned int parse_no_sanitize_attribute (char *value); +uint64_t parse_no_sanitize_attribute (char *value); extern bool common_handle_option (struct gcc_options *opts, struct gcc_options *opts_set, const struct cl_decoded_option *decoded, @@ -470,7 +470,7 @@ extern bool opt_enum_arg_to_value (size_t opt_index, const char *arg, extern const struct sanitizer_opts_s { const char *const name; - unsigned int flag; + uint64_t flag; size_t len; bool can_recover; } sanitizer_opts[]; diff --git a/gcc/tree-cfg.cc b/gcc/tree-cfg.cc index e321d929fd0..8cc31db9bea 100644 --- a/gcc/tree-cfg.cc +++ b/gcc/tree-cfg.cc @@ -8018,7 +8018,7 @@ dump_default_def (FILE *file, tree def, int spc, dump_flags_t flags) static void print_no_sanitize_attr_value (FILE *file, tree value) { - unsigned int flags = tree_to_uhwi (value); + uint64_t flags = tree_to_uhwi (value); bool first = true; for (int i = 0; sanitizer_opts[i].name != NULL; ++i) { -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel