Commit | Line | Data |
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ccbfac29 SR |
1 | #ifndef _ASM_POWERPC_FTRACE |
2 | #define _ASM_POWERPC_FTRACE | |
3 | ||
606576ce | 4 | #ifdef CONFIG_FUNCTION_TRACER |
395a59d0 AS |
5 | #define MCOUNT_ADDR ((long)(_mcount)) |
6 | #define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */ | |
7 | ||
bf528a3a SR |
8 | #ifdef __ASSEMBLY__ |
9 | ||
10 | /* Based off of objdump optput from glibc */ | |
11 | ||
12 | #define MCOUNT_SAVE_FRAME \ | |
13 | stwu r1,-48(r1); \ | |
14 | stw r3, 12(r1); \ | |
15 | stw r4, 16(r1); \ | |
16 | stw r5, 20(r1); \ | |
17 | stw r6, 24(r1); \ | |
18 | mflr r3; \ | |
19 | lwz r4, 52(r1); \ | |
20 | mfcr r5; \ | |
21 | stw r7, 28(r1); \ | |
22 | stw r8, 32(r1); \ | |
23 | stw r9, 36(r1); \ | |
24 | stw r10,40(r1); \ | |
25 | stw r3, 44(r1); \ | |
26 | stw r5, 8(r1) | |
27 | ||
28 | #define MCOUNT_RESTORE_FRAME \ | |
29 | lwz r6, 8(r1); \ | |
30 | lwz r0, 44(r1); \ | |
31 | lwz r3, 12(r1); \ | |
32 | mtctr r0; \ | |
33 | lwz r4, 16(r1); \ | |
34 | mtcr r6; \ | |
35 | lwz r5, 20(r1); \ | |
36 | lwz r6, 24(r1); \ | |
37 | lwz r0, 52(r1); \ | |
38 | lwz r7, 28(r1); \ | |
39 | lwz r8, 32(r1); \ | |
40 | mtlr r0; \ | |
41 | lwz r9, 36(r1); \ | |
42 | lwz r10,40(r1); \ | |
43 | addi r1, r1, 48 | |
44 | ||
45 | #else /* !__ASSEMBLY__ */ | |
ccbfac29 | 46 | extern void _mcount(void); |
8fd6e5a8 SR |
47 | |
48 | #ifdef CONFIG_DYNAMIC_FTRACE | |
49 | static inline unsigned long ftrace_call_adjust(unsigned long addr) | |
50 | { | |
51 | /* reloction of mcount call site is the same as the address */ | |
52 | return addr; | |
53 | } | |
54 | ||
55 | struct dyn_arch_ftrace { | |
f48cb8b4 | 56 | struct module *mod; |
8fd6e5a8 SR |
57 | }; |
58 | #endif /* CONFIG_DYNAMIC_FTRACE */ | |
59 | #endif /* __ASSEMBLY__ */ | |
ccbfac29 SR |
60 | |
61 | #endif | |
395a59d0 AS |
62 | |
63 | #endif /* _ASM_POWERPC_FTRACE */ |