lib: Split panic functions out of vsprintf.c

To allow panic and panic_str to still be used when using tiny-printf,
split them out into their own file which gets build regardless of what
printf implementation is used.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>

lib/Makefile

@@ -85,13 +85,13 @@ obj-$(CONFIG_LIB_RAND) += rand.o
 ifdef CONFIG_SPL_BUILD
 # SPL U-Boot may use full-printf, tiny-printf or none at all
 ifdef CONFIG_USE_TINY_PRINTF
-obj-$(CONFIG_SPL_SERIAL_SUPPORT) += tiny-printf.o
+obj-$(CONFIG_SPL_SERIAL_SUPPORT) += tiny-printf.o panic.o
 else
-obj-$(CONFIG_SPL_SERIAL_SUPPORT) += vsprintf.o
+obj-$(CONFIG_SPL_SERIAL_SUPPORT) += vsprintf.o panic.o
 endif
 else
 # Main U-Boot always uses the full printf support
-obj-y += vsprintf.o
+obj-y += vsprintf.o panic.o
 endif
 
 subdir-ccflags-$(CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED) += -O2

lib/panic.c

@@ -0,0 +1,45 @@
+/*
+ *  linux/lib/vsprintf.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+/* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */
+/*
+ * Wirzenius wrote this portably, Torvalds fucked it up :-)
+ */
+
+#include <common.h>
+#if !defined(CONFIG_PANIC_HANG)
+#include <command.h>
+#endif
+
+static void panic_finish(void) __attribute__ ((noreturn));
+
+static void panic_finish(void)
+{
+	putc('\n');
+#if defined(CONFIG_PANIC_HANG)
+	hang();
+#else
+	udelay(100000);	/* allow messages to go out */
+	do_reset(NULL, 0, 0, NULL);
+#endif
+	while (1)
+		;
+}
+
+void panic_str(const char *str)
+{
+	puts(str);
+	panic_finish();
+}
+
+void panic(const char *fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	vprintf(fmt, args);
+	va_end(args);
+	panic_finish();
+}

lib/vsprintf.c

@@ -897,35 +897,6 @@ int vprintf(const char *fmt, va_list args)
 	return i;
 }
 
-static void panic_finish(void) __attribute__ ((noreturn));
-
-static void panic_finish(void)
-{
-	putc('\n');
-#if defined(CONFIG_PANIC_HANG)
-	hang();
-#else
-	udelay(100000);	/* allow messages to go out */
-	do_reset(NULL, 0, 0, NULL);
-#endif
-	while (1)
-		;
-}
-
-void panic_str(const char *str)
-{
-	puts(str);
-	panic_finish();
-}
-
-void panic(const char *fmt, ...)
-{
-	va_list args;
-	va_start(args, fmt);
-	vprintf(fmt, args);
-	va_end(args);
-	panic_finish();
-}
 
 void __assert_fail(const char *assertion, const char *file, unsigned line,
 		   const char *function)