projects / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| cab3c961 AS |
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 */ |