wrapper/kallsyms.h

   1 #ifndef _LTT_WRAPPER_KALLSYMS_H
   2 #define _LTT_WRAPPER_KALLSYMS_H
   3
   4 /*
   5  * Copyright (C) 2011 Avik Sil (avik.sil@linaro.org)
   6  *
   7  * wrapper around kallsyms_lookup_name. Implements arch-dependent code for
   8  * arches where the address of the start of the function body is different
   9  * from the pointer which can be used to call the function, e.g. ARM THUMB2.
  10  *
  11  * Dual LGPL v2.1/GPL v2 license.
  12  */
  13
  14 static inline
  15 unsigned long kallsyms_lookup_funcptr(const char *name)
  16 {
  17         unsigned long addr;
  18
  19         addr = kallsyms_lookup_name(name);
  20 #ifdef CONFIG_ARM
  21 #ifdef CONFIG_THUMB2_KERNEL
  22         if (addr)
  23                 addr |= 1; /* set bit 0 in address for thumb mode */
  24 #endif
  25 #endif
  26         return addr;
  27 }
  28 #endif /* _LTT_WRAPPER_KALLSYMS_H */