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a90917c3 MD |
1 | #ifndef _LTTNG_WRAPPER_KALLSYMS_H |
2 | #define _LTTNG_WRAPPER_KALLSYMS_H | |
cab3c961 AS |
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 | ||
f6566a02 MD |
14 | #include <linux/kallsyms.h> |
15 | ||
cab3c961 AS |
16 | static inline |
17 | unsigned long kallsyms_lookup_funcptr(const char *name) | |
18 | { | |
19 | unsigned long addr; | |
20 | ||
21 | addr = kallsyms_lookup_name(name); | |
22 | #ifdef CONFIG_ARM | |
23 | #ifdef CONFIG_THUMB2_KERNEL | |
24 | if (addr) | |
25 | addr |= 1; /* set bit 0 in address for thumb mode */ | |
26 | #endif | |
27 | #endif | |
28 | return addr; | |
29 | } | |
a90917c3 | 30 | #endif /* _LTTNG_WRAPPER_KALLSYMS_H */ |