| Steven Rostedt | ccbfac2 | 2008-05-22 14:31:07 -0400 | [diff] [blame] | 1 | #ifndef _ASM_POWERPC_FTRACE |
| 2 | #define _ASM_POWERPC_FTRACE |
| 3 | |
| Steven Rostedt | 606576c | 2008-10-06 19:06:12 -0400 | [diff] [blame] | 4 | #ifdef CONFIG_FUNCTION_TRACER |
| Abhishek Sagar | 395a59d | 2008-06-21 23:47:27 +0530 | [diff] [blame] | 5 | #define MCOUNT_ADDR ((long)(_mcount)) |
| 6 | #define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */ |
| 7 | |
| Steven Rostedt | bf528a3 | 2009-02-11 15:01:18 -0500 | [diff] [blame] | 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__ */ |
| Steven Rostedt | ccbfac2 | 2008-05-22 14:31:07 -0400 | [diff] [blame] | 46 | extern void _mcount(void); |
| Steven Rostedt | 8fd6e5a | 2008-11-14 16:21:19 -0800 | [diff] [blame] | 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 { |
| Steven Rostedt | f48cb8b | 2008-11-14 20:47:03 -0800 | [diff] [blame] | 56 | struct module *mod; |
| Steven Rostedt | 8fd6e5a | 2008-11-14 16:21:19 -0800 | [diff] [blame] | 57 | }; |
| 58 | #endif /* CONFIG_DYNAMIC_FTRACE */ |
| 59 | #endif /* __ASSEMBLY__ */ |
| Steven Rostedt | ccbfac2 | 2008-05-22 14:31:07 -0400 | [diff] [blame] | 60 | |
| 61 | #endif |
| Abhishek Sagar | 395a59d | 2008-06-21 23:47:27 +0530 | [diff] [blame] | 62 | |
| 63 | #endif /* _ASM_POWERPC_FTRACE */ |