diff options
Diffstat (limited to 'arch/s390/kernel/mcount64.S')
-rw-r--r-- | arch/s390/kernel/mcount64.S | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/arch/s390/kernel/mcount64.S b/arch/s390/kernel/mcount64.S index e73667286ac0..f70cadec68fc 100644 --- a/arch/s390/kernel/mcount64.S +++ b/arch/s390/kernel/mcount64.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 | larl %r1,function_trace_stop | 22 | larl %r1,function_trace_stop |
25 | icm %r1,0xf,0(%r1) | 23 | icm %r1,0xf,0(%r1) |
@@ -37,8 +35,7 @@ ftrace_caller: | |||
37 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER | 35 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER |
38 | lg %r2,168(%r15) | 36 | lg %r2,168(%r15) |
39 | lg %r3,272(%r15) | 37 | lg %r3,272(%r15) |
40 | .globl ftrace_graph_caller | 38 | ENTRY(ftrace_graph_caller) |
41 | ftrace_graph_caller: | ||
42 | # The bras instruction gets runtime patched to call prepare_ftrace_return. | 39 | # The bras instruction gets runtime patched to call prepare_ftrace_return. |
43 | # See ftrace_enable_ftrace_graph_caller. The patched instruction is: | 40 | # See ftrace_enable_ftrace_graph_caller. The patched instruction is: |
44 | # bras %r14,prepare_ftrace_return | 41 | # bras %r14,prepare_ftrace_return |
@@ -52,8 +49,7 @@ ftrace_graph_caller: | |||
52 | 49 | ||
53 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER | 50 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER |
54 | 51 | ||
55 | .globl return_to_handler | 52 | ENTRY(return_to_handler) |
56 | return_to_handler: | ||
57 | stmg %r2,%r5,32(%r15) | 53 | stmg %r2,%r5,32(%r15) |
58 | lgr %r1,%r15 | 54 | lgr %r1,%r15 |
59 | aghi %r15,-160 | 55 | aghi %r15,-160 |