lib/panic.c

   1 /*
   2  *  linux/lib/vsprintf.c
   3  *
   4  *  Copyright (C) 1991, 1992  Linus Torvalds
   5  */
   6
   7 /* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */
   8 /*
   9  * Wirzenius wrote this portably, Torvalds fucked it up :-)
  10  */
  11
  12 #include <common.h>
  13 #if !defined(CONFIG_PANIC_HANG)
  14 #include <command.h>
  15 #endif
  16
  17 static void panic_finish(void) __attribute__ ((noreturn));
  18
  19 static void panic_finish(void)
  20 {
  21         putc('\n');
  22 #if defined(CONFIG_PANIC_HANG)
  23         hang();
  24 #else
  25         udelay(100000); /* allow messages to go out */
  26         do_reset(NULL, 0, 0, NULL);
  27 #endif
  28         while (1)
  29                 ;
  30 }
  31
  32 void panic_str(const char *str)
  33 {
  34         puts(str);
  35         panic_finish();
  36 }
  37
  38 void panic(const char *fmt, ...)
  39 {
  40 #if CONFIG_IS_ENABLED(PRINTF)
  41         va_list args;
  42         va_start(args, fmt);
  43         vprintf(fmt, args);
  44         va_end(args);
  45 #endif
  46         panic_finish();
  47 }
  48
  49 void __assert_fail(const char *assertion, const char *file, unsigned int line,
  50                    const char *function)
  51 {
  52         /* This will not return */
  53         panic("%s:%u: %s: Assertion `%s' failed.", file, line, function,
  54               assertion);
  55 }