From: Hauke Mehrtens Date: Thu, 9 Sep 2021 18:36:51 +0000 (+0200) Subject: toolchain/musl: Remove extra format attribute patch X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=71e96532df211380b4d66b8cab709dea11d6dcf2;p=openwrt%2Fstaging%2Fneocturne.git toolchain/musl: Remove extra format attribute patch This patch never went upstream so remove it. GCC should already add such a check to the common functions. Signed-off-by: Hauke Mehrtens --- diff --git a/toolchain/musl/patches/400-Add-format-attribute-to-some-function-declarations.patch b/toolchain/musl/patches/400-Add-format-attribute-to-some-function-declarations.patch deleted file mode 100644 index 06aeb34ced..0000000000 --- a/toolchain/musl/patches/400-Add-format-attribute-to-some-function-declarations.patch +++ /dev/null @@ -1,197 +0,0 @@ -From e6683d001a95d7c3d4d992496f00f77e01fcd268 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens -Date: Sun, 22 Nov 2015 15:04:23 +0100 -Subject: [PATCH v2] Add format attribute to some function declarations - -GCC and Clang are able to check the format arguments given to a -function and warn the user if there is a error in the format arguments -or if there is a potential uncontrolled format string security problem -in the code. GCC does this automatically for some functions like -printf(), but it is also possible to annotate other functions in a way -that it will check them too. This feature is used by glibc for many -functions. This patch adds the attribute to the some functions of musl -expect for these functions where gcc automatically adds it. - -GCC automatically adds checks for these functions: printf, fprintf, -sprintf, scanf, fscanf, sscanf, strftime, vprintf, vfprintf and -vsprintf. - -The documentation from gcc is here: -https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html - -The documentation from Clang is here: -http://clang.llvm.org/docs/AttributeReference.html#format-gnu-format - -Signed-off-by: Hauke Mehrtens ---- - include/err.h | 26 +++++++++++++++++--------- - include/monetary.h | 12 ++++++++++-- - include/stdio.h | 29 ++++++++++++++++++++--------- - include/syslog.h | 12 ++++++++++-- - 4 files changed, 57 insertions(+), 22 deletions(-) - ---- a/include/err.h -+++ b/include/err.h -@@ -8,15 +8,23 @@ - extern "C" { - #endif - --void warn(const char *, ...); --void vwarn(const char *, va_list); --void warnx(const char *, ...); --void vwarnx(const char *, va_list); -+#if __GNUC__ >= 3 -+#define __fp(x, y) __attribute__ ((__format__ (__printf__, x, y))) -+#else -+#define __fp(x, y) -+#endif -+ -+void warn(const char *, ...) __fp(1, 2); -+void vwarn(const char *, va_list) __fp(1, 0); -+void warnx(const char *, ...) __fp(1, 2); -+void vwarnx(const char *, va_list) __fp(1, 0); -+ -+_Noreturn void err(int, const char *, ...) __fp(2, 3); -+_Noreturn void verr(int, const char *, va_list) __fp(2, 0); -+_Noreturn void errx(int, const char *, ...) __fp(2, 3); -+_Noreturn void verrx(int, const char *, va_list) __fp(2, 0); - --_Noreturn void err(int, const char *, ...); --_Noreturn void verr(int, const char *, va_list); --_Noreturn void errx(int, const char *, ...); --_Noreturn void verrx(int, const char *, va_list); -+#undef __fp - - #ifdef __cplusplus - } ---- a/include/monetary.h -+++ b/include/monetary.h -@@ -13,8 +13,16 @@ extern "C" { - - #include - --ssize_t strfmon(char *__restrict, size_t, const char *__restrict, ...); --ssize_t strfmon_l(char *__restrict, size_t, locale_t, const char *__restrict, ...); -+#if __GNUC__ >= 3 -+#define __fsfm(x, y) __attribute__ ((__format__ (__strfmon__, x, y))) -+#else -+#define __fsfm(x, y) -+#endif -+ -+ssize_t strfmon(char *__restrict, size_t, const char *__restrict, ...) __fsfm(3, 4); -+ssize_t strfmon_l(char *__restrict, size_t, locale_t, const char *__restrict, ...) __fsfm(4, 5); -+ -+#undef __fsfm - - #ifdef __cplusplus - } ---- a/include/stdio.h -+++ b/include/stdio.h -@@ -25,6 +25,14 @@ extern "C" { - - #include - -+#if __GNUC__ >= 3 -+#define __fp(x, y) __attribute__ ((__format__ (__printf__, x, y))) -+#define __fs(x, y) __attribute__ ((__format__ (__scanf__, x, y))) -+#else -+#define __fp(x, y) -+#define __fs(x, y) -+#endif -+ - #ifdef __cplusplus - #define NULL 0L - #else -@@ -107,19 +115,19 @@ int puts(const char *); - int printf(const char *__restrict, ...); - int fprintf(FILE *__restrict, const char *__restrict, ...); - int sprintf(char *__restrict, const char *__restrict, ...); --int snprintf(char *__restrict, size_t, const char *__restrict, ...); -+int snprintf(char *__restrict, size_t, const char *__restrict, ...) __fp(3, 4); - - int vprintf(const char *__restrict, __isoc_va_list); - int vfprintf(FILE *__restrict, const char *__restrict, __isoc_va_list); - int vsprintf(char *__restrict, const char *__restrict, __isoc_va_list); --int vsnprintf(char *__restrict, size_t, const char *__restrict, __isoc_va_list); -+int vsnprintf(char *__restrict, size_t, const char *__restrict, __isoc_va_list) __fp(3, 0); - - int scanf(const char *__restrict, ...); - int fscanf(FILE *__restrict, const char *__restrict, ...); - int sscanf(const char *__restrict, const char *__restrict, ...); --int vscanf(const char *__restrict, __isoc_va_list); --int vfscanf(FILE *__restrict, const char *__restrict, __isoc_va_list); --int vsscanf(const char *__restrict, const char *__restrict, __isoc_va_list); -+int vscanf(const char *__restrict, __isoc_va_list) __fs(1, 0); -+int vfscanf(FILE *__restrict, const char *__restrict, __isoc_va_list) __fs(2, 0); -+int vsscanf(const char *__restrict, const char *__restrict, __isoc_va_list) __fs(2, 0); - - void perror(const char *); - -@@ -140,8 +148,8 @@ int pclose(FILE *); - int fileno(FILE *); - int fseeko(FILE *, off_t, int); - off_t ftello(FILE *); --int dprintf(int, const char *__restrict, ...); --int vdprintf(int, const char *__restrict, __isoc_va_list); -+int dprintf(int, const char *__restrict, ...) __fp(2, 3); -+int vdprintf(int, const char *__restrict, __isoc_va_list) __fp(2, 0); - void flockfile(FILE *); - int ftrylockfile(FILE *); - void funlockfile(FILE *); -@@ -180,8 +188,8 @@ int fileno_unlocked(FILE *); - int getw(FILE *); - int putw(int, FILE *); - char *fgetln(FILE *, size_t *); --int asprintf(char **, const char *, ...); --int vasprintf(char **, const char *, __isoc_va_list); -+int asprintf(char **, const char *, ...) __fp(2, 3); -+int vasprintf(char **, const char *, __isoc_va_list) __fp(2, 0); - #endif - - #ifdef _GNU_SOURCE -@@ -203,6 +211,9 @@ typedef struct _IO_cookie_io_functions_t - FILE *fopencookie(void *, const char *, cookie_io_functions_t); - #endif - -+#undef __fp -+#undef __fs -+ - #if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE) - #define tmpfile64 tmpfile - #define fopen64 fopen ---- a/include/syslog.h -+++ b/include/syslog.h -@@ -56,16 +56,22 @@ extern "C" { - #define LOG_NOWAIT 0x10 - #define LOG_PERROR 0x20 - -+#if __GNUC__ >= 3 -+#define __fp(x, y) __attribute__ ((__format__ (__printf__, x, y))) -+#else -+#define __fp(x, y) -+#endif -+ - void closelog (void); - void openlog (const char *, int, int); - int setlogmask (int); --void syslog (int, const char *, ...); -+void syslog (int, const char *, ...) __fp(2, 3); - - #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) - #define _PATH_LOG "/dev/log" - #define __NEED_va_list - #include --void vsyslog (int, const char *, va_list); -+void vsyslog (int, const char *, va_list) __fp(2, 0); - #if defined(SYSLOG_NAMES) - #define INTERNAL_NOPRI 0x10 - #define INTERNAL_MARK (LOG_NFACILITIES<<3) -@@ -93,6 +99,8 @@ typedef struct { - #endif - #endif - -+#undef __fp -+ - #ifdef __cplusplus - } - #endif