增加mpu支持

mkrtos_user/lib/mlibc/crt/crt1_init.c

@@ -11,9 +11,7 @@ weak void _fini();
 int __libc_start_main_init(int (*main)(int,char **,char **), int argc, char **argv,
 	void (*init_dummy)(), void(*fini_dummy)(), void(*ldso_dummy)());
 
-void _start_c_init(long *p)
+void _start_c_init(void)
 {
-	int argc = p[0];
-	char **argv = (void *)(p+1);
-	__libc_start_main_init(main, argc, argv, _init, _fini, 0);
+	__libc_start_main_init(main, NULL, NULL, _init, _fini, 0);
 }

mkrtos_user/lib/mlibc/include/limits.h

@@ -84,7 +84,7 @@
 #define LINE_MAX 4096
 #define RE_DUP_MAX 255
 
-#define NL_ARGMAX 9
+#define NL_ARGMAX 6
 #define NL_MSGMAX 32767
 #define NL_SETMAX 255
 #define NL_TEXTMAX 2048

mkrtos_user/lib/mlibc/src/stdio/vfprintf.c

@@ -125,8 +125,9 @@ static void pop_arg(union arg *arg, int type, va_list *ap)
 	break; case UMAX:	arg->i = va_arg(*ap, uintmax_t);
 	break; case PDIFF:	arg->i = va_arg(*ap, ptrdiff_t);
 	break; case UIPTR:	arg->i = (uintptr_t)va_arg(*ap, void *);
-	break; case DBL:	arg->f = va_arg(*ap, double);
-	break; case LDBL:	arg->f = va_arg(*ap, long double);
+	break; case LDBL:case DBL:	arg->f = va_arg(*ap, double);
+	// break; 
+	// case LDBL:	arg->f = va_arg(*ap, long double);
 	}
 }
 
@@ -137,7 +138,7 @@ static void out(FILE *f, const char *s, size_t l)
 
 static void pad(FILE *f, char c, int w, int l, int fl)
 {
-	char pad[256];
+	char pad[64];
 	if (fl & (LEFT_ADJ | ZERO_PAD) || l >= w) return;
 	l = w - l;
 	memset(pad, c, l>sizeof pad ? sizeof pad : l);

mkrtos_user/server/init/src/main.c

@@ -14,6 +14,11 @@ void printf_test(void)
     printf("print test0.\n");
     printf("print test1.\n");
     printf("print test2.\n");
+    float a=1.1;
+    float b=1.2;
+    float c=a+b;
+    c=c;
+    printf("%c %d %lf\n", 'a', 1234, 1.1);
 }
 int main(int argc, char *args[])
 {