diff options
Diffstat (limited to 'arch/s390/kernel/mcount.S')
-rw-r--r-- | arch/s390/kernel/mcount.S | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S index 1e6a55795628..7e2c38ba1373 100644 --- a/arch/s390/kernel/mcount.S +++ b/arch/s390/kernel/mcount.S | |||
@@ -5,21 +5,19 @@ | |||
5 | * | 5 | * |
6 | */ | 6 | */ |
7 | 7 | ||
8 | #include <linux/linkage.h> | ||
8 | #include <asm/asm-offsets.h> | 9 | #include <asm/asm-offsets.h> |
9 | 10 | ||
10 | .section .kprobes.text, "ax" | 11 | .section .kprobes.text, "ax" |
11 | 12 | ||
12 | .globl ftrace_stub | 13 | ENTRY(ftrace_stub) |
13 | ftrace_stub: | ||
14 | br %r14 | 14 | br %r14 |
15 | 15 | ||
16 | .globl _mcount | 16 | ENTRY(_mcount) |
17 | _mcount: | ||
18 | #ifdef CONFIG_DYNAMIC_FTRACE | 17 | #ifdef CONFIG_DYNAMIC_FTRACE |
19 | br %r14 | 18 | br %r14 |
20 | 19 | ||
21 | .globl ftrace_caller | 20 | ENTRY(ftrace_caller) |
22 | ftrace_caller: | ||
23 | #endif | 21 | #endif |
24 | stm %r2,%r5,16(%r15) | 22 | stm %r2,%r5,16(%r15) |
25 | bras %r1,2f | 23 | bras %r1,2f |
@@ -41,8 +39,7 @@ ftrace_caller: | |||
41 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER | 39 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER |
42 | l %r2,100(%r15) | 40 | l %r2,100(%r15) |
43 | l %r3,152(%r15) | 41 | l %r3,152(%r15) |
44 | .globl ftrace_graph_caller | 42 | ENTRY(ftrace_graph_caller) |
45 | ftrace_graph_caller: | ||
46 | # The bras instruction gets runtime patched to call prepare_ftrace_return. | 43 | # The bras instruction gets runtime patched to call prepare_ftrace_return. |
47 | # See ftrace_enable_ftrace_graph_caller. The patched instruction is: | 44 | # See ftrace_enable_ftrace_graph_caller. The patched instruction is: |
48 | # bras %r14,prepare_ftrace_return | 45 | # bras %r14,prepare_ftrace_return |
@@ -56,8 +53,7 @@ ftrace_graph_caller: | |||
56 | 53 | ||
57 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER | 54 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER |
58 | 55 | ||
59 | .globl return_to_handler | 56 | ENTRY(return_to_handler) |
60 | return_to_handler: | ||
61 | stm %r2,%r5,16(%r15) | 57 | stm %r2,%r5,16(%r15) |
62 | st %r14,56(%r15) | 58 | st %r14,56(%r15) |
63 | lr %r0,%r15 | 59 | lr %r0,%r15 |