diff --git a/toolchain/fortify-headers/patches/011-Check-if-FORTIFY_USE_NATIVE_CHK-is-defined.patch b/toolchain/fortify-headers/patches/011-Check-if-FORTIFY_USE_NATIVE_CHK-is-defined.patch deleted file mode 100644 index f3d276077cf..00000000000 --- a/toolchain/fortify-headers/patches/011-Check-if-FORTIFY_USE_NATIVE_CHK-is-defined.patch +++ /dev/null @@ -1,261 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens -Date: Sun, 26 Oct 2025 17:38:41 +0100 -Subject: Check if FORTIFY_USE_NATIVE_CHK is defined - -The previews code tried to get the value defined for -FORTIFY_USE_NATIVE_CHK and this resulted in some build errors like -this: -``` -/include/fortify/stdio.h: In function 'vsnprintf': -/include/fortify/stdio.h:155:49: error: "FORTIFY_USE_NATIVE_CHK" is not defined, evaluates to 0 [-Werror=undef] - 155 | #if __has_builtin(__builtin___vsnprintf_chk) && FORTIFY_USE_NATIVE_CHK - | ^~~~~~~~~~~~~~~~~~~~~~ -``` - -Check if it is defined instead. - -Signed-off-by: Hauke Mehrtens ---- - include/stdio.h | 20 ++++++++++---------- - include/string.h | 32 ++++++++++++++++---------------- - 2 files changed, 26 insertions(+), 26 deletions(-) - ---- a/include/stdio.h -+++ b/include/stdio.h -@@ -152,7 +152,7 @@ __diagnose_as_builtin(__builtin_vsnprint - _FORTIFY_FN(vsnprintf) int vsnprintf(char * _FORTIFY_POS0 __s, size_t __n, - const char *__f, __builtin_va_list __v) - { --#if __has_builtin(__builtin___vsnprintf_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___vsnprintf_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___vsnprintf_chk(__s, __n, _FORTIFY_SOURCE, __fh_bos(__s, 0), __f, __v); - #else - __fh_size_t __b = __fh_bos(__s, 0); -@@ -172,7 +172,7 @@ __diagnose_as_builtin(__builtin_vsprintf - _FORTIFY_FN(vsprintf) int vsprintf(char * _FORTIFY_POS0 __s, const char *__f, - __builtin_va_list __v) - { --#if __has_builtin(__builtin___vsprintf_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___vsprintf_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___vsprintf_chk(__s, _FORTIFY_SOURCE, __fh_bos(__s, 0), __f, __v); - #else - __fh_size_t __b = __fh_bos(__s, 0); -@@ -200,7 +200,7 @@ __diagnose_as_builtin(__builtin_vfprintf - #endif - _FORTIFY_FN(vfprintf) int vfprintf(FILE * __s, const char *__f, __builtin_va_list __v) - { --#if __has_builtin(__builtin___vfprintf_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___vfprintf_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___vfprintf_chk(__s, _FORTIFY_SOURCE, __f, __v); - #else - return __orig_vfprintf(__s, __f, __v); -@@ -214,7 +214,7 @@ __diagnose_as_builtin(__builtin_vprintf, - #endif - _FORTIFY_FN(vprintf) int vprintf(const char *__f, __builtin_va_list __v) - { --#if __has_builtin(__builtin___vprintf_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___vprintf_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___vprintf_chk(_FORTIFY_SOURCE, __f, __v); - #else - return __orig_vprintf(__f, __v); -@@ -228,7 +228,7 @@ __diagnose_as_builtin(__builtin_vasprint - #endif - _FORTIFY_FN(vasprintf) int vasprintf(char **strp, const char *fmt, __builtin_va_list ap) - { --#if __has_builtin(__builtin___vasprintf_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___vasprintf_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___vasprintf_chk(_FORTIFY_SOURCE, strp, fmt, ap); - #else - int ret = __orig_vasprintf(strp, fmt, ap); -@@ -275,7 +275,7 @@ __fh_format(printf, 3, 4) - _FORTIFY_FN(snprintf) int snprintf(char *__s, size_t __n, - const char *__f, ...) - { --#if __has_builtin(__builtin___snprintf_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___snprintf_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___snprintf_chk(__s, __n, _FORTIFY_SOURCE, __fh_bos(__s, 0), __f, __builtin_va_arg_pack()); - #else - __fh_size_t __b = __fh_bos(__s, 0); -@@ -291,7 +291,7 @@ __fh_format(printf, 2, 3) - __fh_access(read_only, 2) - _FORTIFY_FN(sprintf) int sprintf(char *__s, const char *__f, ...) - { --#if __has_builtin(__builtin___sprintf_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___sprintf_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___sprintf_chk(__s, _FORTIFY_SOURCE, __fh_bos(__s, 0), __f, __builtin_va_arg_pack()); - #else - __fh_size_t __b = __fh_bos(__s, 0); -@@ -312,7 +312,7 @@ __fh_format(printf, 1, 2) - __fh_access(read_only, 1) - _FORTIFY_FN(printf) int printf(const char *__f, ...) - { --#if __has_builtin(__builtin___printf_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___printf_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___printf_chk(_FORTIFY_SOURCE, __f, __builtin_va_arg_pack()); - #else - return __orig_printf(__f, __builtin_va_arg_pack()); -@@ -326,7 +326,7 @@ __diagnose_as_builtin(__builtin_fprintf, - #endif - _FORTIFY_FN(fprintf) int fprintf(FILE *__s, const char *__f, ...) - { --#if __has_builtin(__builtin___fprintf_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___fprintf_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___fprintf_chk(_FORTIFY_SOURCE, __s, __f, __builtin_va_arg_pack()); - #else - return __orig_fprintf(__s, __f, __builtin_va_arg_pack()); -@@ -343,7 +343,7 @@ __diagnose_as_builtin(__builtin_asprintf - #endif - _FORTIFY_FN(asprintf) int asprintf(char **strp, const char *fmt, ...) - { --#if __has_builtin(__builtin___asprintf_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___asprintf_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___asprintf_chk(_FORTIFY_SOURCE, strp, fmt, __builtin_va_arg_pack()); - #else - int ret = __orig_asprintf(strp, fmt, __builtin_va_arg_pack()); ---- a/include/string.h -+++ b/include/string.h -@@ -48,7 +48,7 @@ _FORTIFY_FN(memcpy) void *memcpy(void * - const void * _FORTIFY_POS0 __os, size_t __n) - __error_if((__fh_bos(__od, 0) < __n), "'memcpy' called with `n` bigger than the size of `d`.") - { --#if __has_builtin(__builtin___memcpy_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___memcpy_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___memcpy_chk(__od, __os, __n, __fh_bos(__od, 0)); - #else - #if defined FORTIFY_PEDANTIC_CHECKS -@@ -75,7 +75,7 @@ __diagnose_as_builtin(__builtin_memmove, - _FORTIFY_FN(memmove) void *memmove(void * _FORTIFY_POS0 __d, - const void * _FORTIFY_POS0 __s, size_t __n) - { --#if __has_builtin(__builtin___memmove_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___memmove_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___memmove_chk(__d, __s, __n, __fh_bos(__d, 0)); - #else - #if defined FORTIFY_PEDANTIC_CHECKS -@@ -99,7 +99,7 @@ __diagnose_as_builtin(__builtin_memset, - _FORTIFY_FN(memset) void *memset(void * _FORTIFY_POS0 __d, int __c, size_t __n) - __warning_if(__c != 0 && __n == 0, "'memset' will set `0` bytes; did you invert the arguments?") - { --#if __has_builtin(__builtin___memset_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___memset_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___memset_chk(__d, __c, __n, __fh_bos(__d, 0)); - #else - #if defined FORTIFY_PEDANTIC_CHECKS -@@ -121,7 +121,7 @@ __diagnose_as_builtin(__builtin_memchr, - #endif - _FORTIFY_FN(memchr) void *memchr(const void * _FORTIFY_POS0 __d, int __c, size_t __n) - { --#if __has_builtin(__builtin___memchr_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___memchr_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___memchr_chk(__d, __c, __n, __fh_bos(__d, 0)); - #else - #if defined FORTIFY_PEDANTIC_CHECKS -@@ -142,7 +142,7 @@ _FORTIFY_FN(memchr) void *memchr(const v - __fh_access(read_only, 1, 2) - _FORTIFY_FN(strchr) char *strchr(const char * _FORTIFY_POS0 __s, int __c) - { --#if __has_builtin(__builtin___strchr_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___strchr_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___strchr_chk(__s, __c, __fh_bos(__s, 0)); - #else - __fh_size_t __b = __fh_bos(__s, 0); -@@ -157,7 +157,7 @@ _FORTIFY_FN(strchr) char *strchr(const c - __fh_access(read_only, 1, 2) - _FORTIFY_FN(strrchr) char *strrchr(const char * _FORTIFY_POS0 __s, int __c) - { --#if __has_builtin(__builtin___strrchr_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___strrchr_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___strrchr_chk(__s, __c, __fh_bos(__s, 0)); - #else - __fh_size_t __b = __fh_bos(__s, 0); -@@ -181,7 +181,7 @@ __diagnose_as_builtin(__builtin_stpcpy, - #endif - _FORTIFY_FN(stpcpy) char *stpcpy(char * _FORTIFY_POS0 __d, const char *__s) - { --#if __has_builtin(__builtin___stpcpy_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___stpcpy_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___stpcpy_chk(__d, __s, __fh_bos(__d, 0)); - #else - __fh_size_t __n = strlen(__s) + 1; -@@ -205,7 +205,7 @@ __diagnose_as_builtin(__builtin_stpncpy, - _FORTIFY_FN(stpncpy) char *stpncpy(char * _FORTIFY_POS0 __d, const char *__s, - size_t __n) - { --#if __has_builtin(__builtin___stpncpy_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___stpncpy_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___stpncpy_chk(__d, __s, __n, __fh_bos(__d, 0)); - #else - // If the length strlen(src) is smaller than n, the remaining -@@ -227,7 +227,7 @@ __diagnose_as_builtin(__builtin_strcat, - #endif - _FORTIFY_FN(strcat) char *strcat(char * _FORTIFY_POS0 __d, const char *__s) - { --#if __has_builtin(__builtin___strcat_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___strcat_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___strcat_chk(__d, __s, __fh_bos(__d, 0)); - #else - __fh_size_t __b = __fh_bos(__d, 0); -@@ -245,7 +245,7 @@ __diagnose_as_builtin(__builtin_strcpy, - #endif - _FORTIFY_FN(strcpy) char *strcpy(char * _FORTIFY_POS0 __d, const char *__s) - { --#if __has_builtin(__builtin___strcpy_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___strcpy_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___strcpy_chk(__d, __s, __fh_bos(__d, 0)); - #else - __fh_size_t __n = strlen(__s) + 1; -@@ -266,7 +266,7 @@ __diagnose_as_builtin(__builtin_strlen, - #endif - _FORTIFY_FN(strlen) size_t strlen(const char * _FORTIFY_POS0 __s) - { --#if __has_builtin(__builtin___strlen_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___strlen_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___strlen_chk(__s, __fh_bos(__s, 0)); - #else - __fh_size_t ret = __orig_strlen(__s); -@@ -284,7 +284,7 @@ __diagnose_as_builtin(__builtin_strncat, - _FORTIFY_FN(strncat) char *strncat(char * _FORTIFY_POS0 __d, const char *__s, - size_t __n) - { --#if __has_builtin(__builtin___strncat_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___strncat_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___strncat_chk(__d, __s, __n, __fh_bos(__d, 0)); - #else - #if 0 // strlen(__s) isn't guaranteed to be valid. -@@ -311,7 +311,7 @@ __diagnose_as_builtin(__builtin_strncpy, - _FORTIFY_FN(strncpy) char *strncpy(char * _FORTIFY_POS0 __d, - const char *__s, size_t __n) - { --#if __has_builtin(__builtin___strncpy_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___strncpy_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___strncpy_chk(__d, __s, __n, __fh_bos(__d, 0)); - #else - // If the length of src is less than n, strncpy() writes additional -@@ -334,7 +334,7 @@ __diagnose_as_builtin(__builtin_mempcpy, - _FORTIFY_FN(mempcpy) void *mempcpy(void * _FORTIFY_POS0 __d, - const void * _FORTIFY_POS0 __s, size_t __n) - { --#if __has_builtin(__builtin___mempcpy_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___mempcpy_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___mempcpy_chk(__d, __s, __n, __fh_bos(__d, 0)); - #else - if (!__d || !__s) -@@ -361,7 +361,7 @@ __diagnose_as_builtin(__builtin_strlcat, - _FORTIFY_FN(strlcat) size_t strlcat(char * _FORTIFY_POS0 __d, - const char *__s, size_t __n) - { --#if __has_builtin(__builtin___strlcat_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___strlcat_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___strlcat_chk(__d, __s, __n, __fh_bos(__d, 0)); - #else - __fh_size_t __b = __fh_bos(__d, 0); -@@ -380,7 +380,7 @@ __diagnose_as_builtin(__builtin_strlcpy, - _FORTIFY_FN(strlcpy) size_t strlcpy(char * _FORTIFY_POS0 __d, - const char *__s, size_t __n) - { --#if __has_builtin(__builtin___strlcpy_chk) && FORTIFY_USE_NATIVE_CHK -+#if __has_builtin(__builtin___strlcpy_chk) && defined(FORTIFY_USE_NATIVE_CHK) - return __builtin___strlcpy_chk(__d, __s, __n, __fh_bos(__d, 0)); - #else - __fh_size_t __b = __fh_bos(__d, 0); diff --git a/toolchain/fortify-headers/patches/012-poll-Check-if-_REDIR_TIME64-is-defined.patch b/toolchain/fortify-headers/patches/012-poll-Check-if-_REDIR_TIME64-is-defined.patch deleted file mode 100644 index 1b44a7f1640..00000000000 --- a/toolchain/fortify-headers/patches/012-poll-Check-if-_REDIR_TIME64-is-defined.patch +++ /dev/null @@ -1,32 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens -Date: Sun, 26 Oct 2025 23:15:30 +0100 -Subject: poll: Check if _REDIR_TIME64 is defined - -Treat _REDIR_TIME64 being undefined like being set to 0. - -This fixes the following compile error in strace: -``` -In file included from pathtrace.c:12: -/include/fortify/poll.h:46:30: error: "_REDIR_TIME64" is not defined, evaluates to 0 [-Werror=undef] - 46 | #if defined(_GNU_SOURCE) && !_REDIR_TIME64 - | ^~~~~~~~~~~~~ -cc1: all warnings being treated as errors -``` - -Signed-off-by: Hauke Mehrtens ---- - include/poll.h | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - ---- a/include/poll.h -+++ b/include/poll.h -@@ -43,7 +43,7 @@ _FORTIFY_FN(poll) int poll(struct pollfd - return __orig_poll(__f, __n, __s); - } - --#if defined(_GNU_SOURCE) && !_REDIR_TIME64 -+#if defined(_GNU_SOURCE) && (!defined(_REDIR_TIME64) || !_REDIR_TIME64) - #undef ppoll - #if __has_builtin(__builtin_ppoll) - __diagnose_as_builtin(__builtin_ppoll, 1, 2, 3, 4) diff --git a/toolchain/fortify-headers/patches/013-fortify-headers-Remove-__fh_has_builtin.patch b/toolchain/fortify-headers/patches/013-fortify-headers-Remove-__fh_has_builtin.patch deleted file mode 100644 index 73858cb4ea9..00000000000 --- a/toolchain/fortify-headers/patches/013-fortify-headers-Remove-__fh_has_builtin.patch +++ /dev/null @@ -1,80 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens -Date: Sun, 26 Oct 2025 23:16:01 +0100 -Subject: fortify-headers: Remove __fh_has_builtin() - -GCC complains about the `defined` usage here. Just call `__has_builtin` directly. - -This fixes the following compile error when compiling strace: -``` -In file included from /home/hauke/openwrt/openwrt/staging_dir/toolchain-aarch64_generic_gcc-14.3.0_musl/include/fortify/stdlib.h:27, - from number_set.c:14: -/home/hauke/openwrt/openwrt/staging_dir/toolchain-aarch64_generic_gcc-14.3.0_musl/include/fortify/fortify-headers.h:26:30: error: this use of "defined" may not be portable [-Werror=expansion-to-defined] - 26 | #define __fh_has_builtin(x) (__has_builtin(x) || defined(x)) - | ^~~~~~~~~~~~~ -/home/hauke/openwrt/openwrt/staging_dir/toolchain-aarch64_generic_gcc-14.3.0_musl/include/fortify/fortify-headers.h:28:7: note: in expansion of macro '__fh_has_builtin' - 28 | #if ! __fh_has_builtin(__builtin_trap) - | ^~~~~~~~~~~~~~~~ -/home/hauke/openwrt/openwrt/staging_dir/toolchain-aarch64_generic_gcc-14.3.0_musl/include/fortify/fortify-headers.h:26:30: error: this use of "defined" may not be portable [-Werror=expansion-to-defined] - 26 | #define __fh_has_builtin(x) (__has_builtin(x) || defined(x)) - | ^~~~~~~~~~~~~ -/home/hauke/openwrt/openwrt/staging_dir/toolchain-aarch64_generic_gcc-14.3.0_musl/include/fortify/fortify-headers.h:73:29: note: in expansion of macro '__fh_has_builtin' - 73 | #if _FORTIFY_SOURCE > 2 && __fh_has_builtin (__builtin_dynamic_object_size) - | ^~~~~~~~~~~~~~~~ -/home/hauke/openwrt/openwrt/staging_dir/toolchain-aarch64_generic_gcc-14.3.0_musl/include/fortify/fortify-headers.h:26:30: error: this use of "defined" may not be portable [-Werror=expansion-to-defined] - 26 | #define __fh_has_builtin(x) (__has_builtin(x) || defined(x)) - | ^~~~~~~~~~~~~ -/home/hauke/openwrt/openwrt/staging_dir/toolchain-aarch64_generic_gcc-14.3.0_musl/include/fortify/fortify-headers.h:158:5: note: in expansion of macro '__fh_has_builtin' - 158 | #if __fh_has_builtin (__builtin_mul_overflow_p) - | ^~~~~~~~~~~~~~~~ -cc1: all warnings being treated as errors -``` - -Signed-off-by: Hauke Mehrtens ---- - include/fortify-headers.h | 14 +++----------- - 1 file changed, 3 insertions(+), 11 deletions(-) - ---- a/include/fortify-headers.h -+++ b/include/fortify-headers.h -@@ -21,21 +21,13 @@ - #error a compiler with __has_builtin support is required - #endif - --// https://clang.llvm.org/docs/LanguageExtensions.html#has-builtin --// > __has_builtin should not be used to detect support for a builtin macro; use #ifdef instead. --#define __fh_has_builtin(x) (__has_builtin(x) || defined(x)) -- --#if ! __fh_has_builtin(__builtin_trap) --#define __builtin_trap abort --#endif -- - #if _FORTIFY_SOURCE > 3 - #warning _FORTIFY_SOURCE > 3 is treated as 3 - #endif - - #ifdef __clang__ - --#if _FORTIFY_SOURCE > 2 && __fh_has_builtin (__builtin_dynamic_object_size) && __has_attribute(pass_dynamic_object_size) -+#if _FORTIFY_SOURCE > 2 && __has_builtin (__builtin_dynamic_object_size) && __has_attribute(pass_dynamic_object_size) - #define _FORTIFY_POSN(n) const __attribute__((pass_dynamic_object_size(n))) - #else - #define _FORTIFY_POSN(n) const __attribute__((pass_object_size(n))) -@@ -70,7 +62,7 @@ - #define _FORTIFY_FN(fn) _FORTIFY_FNB(fn); _FORTIFY_INLINE - - /* Use __builtin_dynamic_object_size with _FORTIFY_SOURCE>2, if available. */ --#if _FORTIFY_SOURCE > 2 && __fh_has_builtin (__builtin_dynamic_object_size) -+#if _FORTIFY_SOURCE > 2 && __has_builtin (__builtin_dynamic_object_size) - /* - * See: - * - https://gcc.gnu.org/onlinedocs/gcc/Object-Size-Checking.html -@@ -155,7 +147,7 @@ - * - https://gcc.gnu.org/onlinedocs/gcc/Integer-Overflow-Builtins.html - * - https://clang.llvm.org/docs/LanguageExtensions.html#checked-arithmetic-builtins - */ --#if __fh_has_builtin (__builtin_mul_overflow_p) -+#if __has_builtin (__builtin_mul_overflow_p) - #define __bmo(x, y) (x != 0 && __builtin_mul_overflow_p(x, y, (__typeof__ ((x) + (y))) 0)) - #else /* !__builtin_mul_overflow_p */ - #define __bmo(x, y) (x != 0 && (x * y) / x != y)