kernel: add linux 4.4 support

[openwrt/openwrt.git] / target / linux / generic / patches-4.4 / 205-backtrace_module_info.patch

diff --git a/target/linux/generic/patches-4.4/205-backtrace_module_info.patch b/target/linux/generic/patches-4.4/205-backtrace_module_info.patch
new file mode 100644 (file)
index 0000000..0550ec4
--- /dev/null
+++ b/target/linux/generic/patches-4.4/205-backtrace_module_info.patch
@@ -0,0 +1,36 @@
+--- a/lib/vsprintf.c
++++ b/lib/vsprintf.c
+@@ -618,8 +618,10 @@ char *symbol_string(char *buf, char *end
+                   struct printf_spec spec, const char *fmt)
+ {
+       unsigned long value;
+-#ifdef CONFIG_KALLSYMS
+       char sym[KSYM_SYMBOL_LEN];
++#ifndef CONFIG_KALLSYMS
++      struct module *mod;
++      int len;
+ #endif
+ 
+       if (fmt[1] == 'R')
+@@ -633,15 +635,15 @@ char *symbol_string(char *buf, char *end
+               sprint_symbol(sym, value);
+       else
+               sprint_symbol_no_offset(sym, value);
+-
+-      return string(buf, end, sym, spec);
+ #else
+-      spec.field_width = 2 * sizeof(void *);
+-      spec.flags |= SPECIAL | SMALL | ZEROPAD;
+-      spec.base = 16;
++      len = snprintf(sym, sizeof(sym), "0x%lx", value);
+ 
+-      return number(buf, end, value, spec);
++      mod = __module_address(value);
++      if (mod)
++              snprintf(sym + len, sizeof(sym) - len, " [%s@%p+0x%x]",
++                       mod->name, mod->module_core, mod->core_size);
+ #endif
++      return string(buf, end, sym, spec);
+ }
+ 
+ static noinline_for_stack