target/linux/generic/patches-4.9/205-backtrace_module_info.patch

   1 --- a/lib/vsprintf.c
   2 +++ b/lib/vsprintf.c
   3 @@ -669,8 +669,10 @@ char *symbol_string(char *buf, char *end
   4                     struct printf_spec spec, const char *fmt)
   5  {
   6         unsigned long value;
   7 -#ifdef CONFIG_KALLSYMS
   8         char sym[KSYM_SYMBOL_LEN];
   9 +#ifndef CONFIG_KALLSYMS
  10 +       struct module *mod;
  11 +       int len;
  12  #endif
  13
  14         if (fmt[1] == 'R')
  15 @@ -684,11 +686,16 @@ char *symbol_string(char *buf, char *end
  16                 sprint_symbol(sym, value);
  17         else
  18                 sprint_symbol_no_offset(sym, value);
  19 -
  20 -       return string(buf, end, sym, spec);
  21  #else
  22 -       return special_hex_number(buf, end, value, sizeof(void *));
  23 +       len = snprintf(sym, sizeof(sym), "0x%lx", value);
  24 +
  25 +       mod = __module_address(value);
  26 +       if (mod)
  27 +               snprintf(sym + len, sizeof(sym) - len, " [%s@%p+0x%x]",
  28 +                        mod->name, mod->core_layout.base,
  29 +                        mod->core_layout.size);
  30  #endif
  31 +       return string(buf, end, sym, spec);
  32  }
  33
  34  static noinline_for_stack