diff options
Diffstat (limited to 'arch/arm/kernel/ftrace.c')
-rw-r--r-- | arch/arm/kernel/ftrace.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c index c108ddcb9ba4..af9a8a927a4e 100644 --- a/arch/arm/kernel/ftrace.c +++ b/arch/arm/kernel/ftrace.c | |||
@@ -14,6 +14,7 @@ | |||
14 | 14 | ||
15 | #include <linux/ftrace.h> | 15 | #include <linux/ftrace.h> |
16 | #include <linux/uaccess.h> | 16 | #include <linux/uaccess.h> |
17 | #include <linux/module.h> | ||
17 | 18 | ||
18 | #include <asm/cacheflush.h> | 19 | #include <asm/cacheflush.h> |
19 | #include <asm/opcodes.h> | 20 | #include <asm/opcodes.h> |
@@ -63,6 +64,18 @@ static unsigned long adjust_address(struct dyn_ftrace *rec, unsigned long addr) | |||
63 | } | 64 | } |
64 | #endif | 65 | #endif |
65 | 66 | ||
67 | int ftrace_arch_code_modify_prepare(void) | ||
68 | { | ||
69 | set_all_modules_text_rw(); | ||
70 | return 0; | ||
71 | } | ||
72 | |||
73 | int ftrace_arch_code_modify_post_process(void) | ||
74 | { | ||
75 | set_all_modules_text_ro(); | ||
76 | return 0; | ||
77 | } | ||
78 | |||
66 | static unsigned long ftrace_call_replace(unsigned long pc, unsigned long addr) | 79 | static unsigned long ftrace_call_replace(unsigned long pc, unsigned long addr) |
67 | { | 80 | { |
68 | return arm_gen_branch_link(pc, addr); | 81 | return arm_gen_branch_link(pc, addr); |